CN103002349A - Adaptive adjustment method and device for video playing - Google Patents
Adaptive adjustment method and device for video playing Download PDFInfo
- Publication number
- CN103002349A CN103002349A CN2012105086866A CN201210508686A CN103002349A CN 103002349 A CN103002349 A CN 103002349A CN 2012105086866 A CN2012105086866 A CN 2012105086866A CN 201210508686 A CN201210508686 A CN 201210508686A CN 103002349 A CN103002349 A CN 103002349A
- Authority
- CN
- China
- Prior art keywords
- viewing distance
- target audience
- video playback
- screen
- digital
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
The invention discloses an adaptive adjustment method for video playing. The method includes acquiring facial feature data of target audiences, determining a viewing distance of the target audiences according to the facial feature data of the target audiences, calculating an image output range and a screen output brightness of the video playing according to the viewing distance of the target audiences to obtain screen output parameters, calling function interface functions according to the screen output parameters and adjusting the output of the video playing through the functions. The invention further discloses a digital television terminal. By means of the method and the digital television terminal, output parameters such as the image output range and the screen output brightness of the video playing can be adaptively adjusted according to the viewing distance of a television user when the user watches the television, a comfortable and physically beneficial video watching effect can be provided for the television user, and the vision health of the television user can be well guaranteed.
Description
Technical field
The present invention relates to a kind of communications field, relate in particular to method and device that a kind of video playback self adaptation is regulated.
Background technology
At present, the welcome that the panel TV of large-screen relies on beautiful outward appearance and roomy screen deeply to be subjected to TV user, LCD TV, plasm TV be because the stable not flicker of picture, amount of radiation are minimum, even be known as and do not have radiation.This is so that most people, and the children that particularly lack restraining force think that TV has not had radiation, the in-plant TV programme of watching often, and the rational viewing distance of neither one exists certain vision health hidden danger.
Whether the relation between the viewing distance three of image output rectangle size, screen output brightness and TV user when observing and testing the discovery video playback on the screen is coordinated, and can affect the vision health of watching effect and user that TV user is watched video frequency program.Excessive video output screen, too short viewing distance, meeting so that TV user in watching the program process in order to see content complete on the screen, instinct rotate excessively continually eyes, bring pressure to eyes, easily cause visual fatigue, cause visual impairment.In addition, the higher meeting of the brightness of video screen allows TV user produce dazzling sensation, even the eyes of burning; The low eyes that can allow are crossed in brightness must high concentration, easily fatigue, easily myopia.Light intensity in the propagation can weaken along with the increase of distance, so the adjustment that the brightness of video screen should be suitable according to the viewing distance of TV user.
In the prior art, the video playback mode that existing set-top box provides all is to preset in the process of programming, directly video is carried out output all over the screen, perhaps broadcasts with fixing rectangle size in certain fixing position.The broadcast mode meeting of this output all over the screen is so that the TV user of closely watching has feeling of stress, and changeless wicket broadcast mode, meeting is so that TV user eyes when viewing distance far away is watched are easily tired.The output brightness of video screen can carry out manual adjustments, setting for spectators by the form at menu mutual interface, reads the parameter that spectators set by set-top box plug-in module, and the brightness of regulatory function function interface control screen changes.Yet TV user often can not go to regulate continually because the viewing distance of oneself is different when watching TV programme, setting screen brightness.
Existing video playback mode can't be according to user's actual viewing distance and the output parameter such as image output area when automatically regulating video playback and screen output brightness, for TV user provides best video view reception effect, can't ensure better the vision health of TV user.
Summary of the invention
Technical problem to be solved by this invention is, the method and a kind of digital TV terminal that provide a kind of video playback self adaptation to regulate.The output parameter of the video playback such as the image output area that the real-time viewing distance adaptively adjusting video in the time of can televiewing according to TV user is play and screen output brightness, have advantages of for TV user provides the video an of the best and watch effect, ensured better the vision health of TV user.
In order to solve the problems of the technologies described above, on the one hand, the method that embodiments of the invention provide a kind of video playback self adaptation to regulate comprises:
Obtain the types of facial makeup in Beijing operas characteristic of target audience;
Determine the viewing distance of described target audience according to the types of facial makeup in Beijing operas characteristic of described target audience;
Viewing distance according to described target audience calculates the image output area of video playback and the screen output brightness of video playback, obtains the screen output parameter;
According to described screen output parameter calling function interface function, regulate the output of video playback by described function.
Wherein, the described types of facial makeup in Beijing operas characteristic of obtaining target audience comprises:
Catch the object in digital TV screen the place ahead by camera, obtain the view data of described object;
Process the view data of described object, obtain the types of facial makeup in Beijing operas characteristic of described target audience.
Wherein, the described viewing distance of determining described target audience according to the types of facial makeup in Beijing operas characteristic of described target audience comprises:
According to the types of facial makeup in Beijing operas characteristic of described target audience, the relational expression of invocation target spectators' viewing distance and types of facial makeup in Beijing operas characteristic is determined the viewing distance of described target audience;
Wherein, the viewing distance of described target audience is the horizontal range between described target audience and the digital TV screen.
Wherein, the obtaining step of the relational expression of the viewing distance of described target audience and types of facial makeup in Beijing operas characteristic comprises:
Equally spaced a plurality of reference point of watching is set in the digital TV screen dead ahead;
Record described target audience at each described viewing distance of watching reference point, and scan, record described target audience is watched reference point in correspondence types of facial makeup in Beijing operas characteristic;
Calculate in the data statistics of described each described viewing distance of watching reference point and corresponding types of facial makeup in Beijing operas characteristic according to described target audience, obtain the viewing distance of described target audience and the relational expression of types of facial makeup in Beijing operas characteristic.
Wherein, the described image output area of calculating video playback according to the viewing distance of target audience comprises:
Obtain the size of the Digital Television that described target audience watching;
According to the viewing distance of size and the described target audience of described Digital Television, call image output area and the viewing distance of target audience and the relational expression of Digital Television size of video playback, calculate the image output area of described video playback;
Wherein, the image output area of described video playback comprises width, height and the starting point coordinate of image output rectangle.
Wherein, the obtaining step of the relational expression of the image output area of described video playback and the viewing distance of target audience and Digital Television size comprises:
Set the ratio of the output screen catercorner length of viewing distance and video playback;
Ratio according to the output screen catercorner length of described viewing distance and video playback, export the width of rectangle, the relation of height in conjunction with output screen catercorner length and image, calculate the width of the image output rectangle of described viewing distance and described video playback, the relational expression of height;
According to the output screen catercorner length of video playback and the ratio of Digital Television size, calculate the width of the image output rectangle of described Digital Television size and described video playback, the relational expression of height;
Export the width of rectangle, the relational expression of height and the image of described Digital Television size and described video playback according to the image of described viewing distance and described video playback and export the width of rectangle, the relational expression of height, export the computational methods of the starting point coordinate of rectangle in conjunction with the image of video playback, calculate image output area and the viewing distance of target audience and the relational expression of Digital Television size of described video playback.
Wherein, after the described screen output area that calculates described video playback, comprising:
The width of image output rectangle and the pixel number that height unit length takies during according to video playback, determine the pixel number that width, height and the starting point coordinate of the image output rectangle of described video playback take, as screen output area parameter, call the corresponding function interface function.
Wherein, the described screen output brightness that calculates video playback according to the viewing distance of target audience comprises:
According to the viewing distance of described target audience, call the relational expression of the viewing distance of the screen output brightness of video playback and target audience, calculate the screen output brightness of described video playback.
Wherein, the obtaining step of the relational expression of the screen output brightness of described video playback and the viewing distance of target audience comprises:
Equally spaced a plurality of reference point of watching is set in the digital TV screen dead ahead;
Record described target audience in each the described viewing distance of reference point and screen output brightness value of selection of watching;
Calculate in the data statistics of described each described viewing distance of watching reference point and corresponding screen output brightness value according to described target audience, obtain the relational expression of the viewing distance of the screen output brightness of described video playback and target audience.
Wherein, described method comprises:
As the spectators in described Digital Television the place ahead during more than a people, set according to described spectators' actual demand and to optimize spectators, the target audience that described optimization spectators are regulated as video playback.
On the other hand, embodiments of the invention provide a kind of digital TV terminal, comprising:
Image processing module is for the types of facial makeup in Beijing operas characteristic of obtaining target audience;
The viewing distance computing module is for the viewing distance of determining described target audience according to the types of facial makeup in Beijing operas characteristic of described target audience;
Screen output parameter computing module is used for calculating the image output area of video playback and the screen output brightness of video playback according to the viewing distance of described target audience, obtains the screen output parameter;
Calling module is used for according to described screen output parameter calling function interface function, regulates the output of video playback by described function.
Wherein, described image processing module comprises:
Image acquisition units is used for obtaining the view data of the object in digital TV screen the place ahead that camera captures;
Graphics processing unit for the treatment of the view data of described object, obtains the types of facial makeup in Beijing operas characteristic of described target audience.
Wherein, described viewing distance computing module comprises:
Call unit is used for the types of facial makeup in Beijing operas characteristic according to described target audience, and the relational expression of invocation target spectators' viewing distance and types of facial makeup in Beijing operas characteristic is determined the viewing distance of described target audience;
Wherein, the viewing distance of described target audience is the horizontal range between described target audience and the digital TV screen.
Wherein, described viewing distance computing module comprises:
Setting unit is for equally spaced a plurality of reference point of watching is set in the digital TV screen dead ahead;
Processing unit is used for recording described target audience at each described viewing distance of watching reference point, and scans, records described target audience is watched reference point in correspondence types of facial makeup in Beijing operas characteristic;
Statistics is calculated the unit, is used for calculating in the data statistics of described each described viewing distance of watching reference point and corresponding types of facial makeup in Beijing operas characteristic according to described target audience, obtains the viewing distance of described target audience and the relational expression of types of facial makeup in Beijing operas characteristic.
Wherein, described screen output parameter computing module comprises:
Image output area setup unit is used for the image output area according to the viewing distance setting video playback of described target audience;
Screen output brightness setup unit is used for the screen output brightness according to the viewing distance setting video playback of described target audience.
Wherein, described image output area setup unit comprises:
Obtain subelement, be used for obtaining the size of the Digital Television that described target audience watching;
First calls subelement, be used for the viewing distance according to size and the described target audience of described Digital Television, call image output area and the viewing distance of target audience and the relational expression of Digital Television size of video playback, calculate the image output area of described video playback;
Wherein, the image output area of described video playback comprises width, height and the starting point coordinate of image output rectangle.
Wherein, described image output area setup unit comprises:
Set subelement, be used for the ratio of the output screen catercorner length of setting viewing distance and video playback;
The first computation subunit, be used for the ratio according to the output screen catercorner length of described viewing distance and video playback, export the width of rectangle, the relation of height in conjunction with output screen catercorner length and image, calculate the width of the image output rectangle of described viewing distance and described video playback, the relational expression of height;
The second computation subunit is used for output screen catercorner length and Digital Television dimension ratio according to video playback, calculates the width of the image output rectangle of described Digital Television size and described video playback, the relational expression of height;
The 3rd computation subunit, be used for the width according to the image output rectangle of described viewing distance and described video playback, the relational expression of height and the image of described Digital Television size and described video playback and export the width of rectangle, the relational expression of height, export the computational methods of the starting point coordinate of rectangle in conjunction with the image of video playback, calculate image output area and the viewing distance of target audience and the relational expression of Digital Television size of described video playback.
Wherein, described screen output parameter computing module comprises:
Parameter set unit, the width of image output rectangle and the pixel number that height unit length takies when being used for according to video playback, determine the pixel number that width, height and the starting point coordinate of the image output rectangle of described video playback take, as screen output area parameter, call the corresponding function interface function.
Wherein, described screen output brightness setup unit comprises:
Second calls subelement, is used for the viewing distance according to described target audience, calls the relational expression of the viewing distance of the screen output brightness of video playback and target audience, calculates the screen output brightness of described video playback.
Wherein, described screen output brightness setup unit comprises:
Subelement is set, for equally spaced a plurality of reference point of watching is set in the digital TV screen dead ahead;
The record subelement is used for recording described target audience in each the described viewing distance of reference point and screen output brightness value of selection of watching;
The estimator unit, be used for calculating in the data statistics of described each described viewing distance of watching reference point and corresponding screen output brightness value according to described target audience, obtain the relational expression of the viewing distance of the screen output brightness of described video playback and target audience.
Wherein, described digital TV terminal comprises:
Optimize module, when being used for spectators when described Digital Television the place ahead more than a people, setting according to described spectators' actual demand and to optimize spectators, with the target audience of described optimization spectators as the video playback adjusting.
The embodiment of the invention has following beneficial effect:
The embodiment of the invention is obtained the types of facial makeup in Beijing operas characteristic of the target audience of watching TV programme, determine the viewing distance of target audience according to types of facial makeup in Beijing operas characteristic, again according to viewing distance and the image output area of video playback and the relational expression of screen output brightness of target audience, determine realtime graphic output area and the screen output brightness parameter of video playback, call corresponding functional interface function, realize the image output area of video playback and the self adaptation adjusting of screen output brightness.The present invention has changed the image output area of video playback and the limitation that the screen output brightness can not be regulated automatically in the prior art, realization is regulated the image output area of video playback and the self adaptation regulating effect of screen output brightness automatically according to spectators' real-time viewing distance, a kind of video-see effect of healthiness is provided for TV user, has effectively ensured the vision health of TV user.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the first embodiment schematic flow sheet of the method for video playback self adaptation adjusting of the present invention;
Fig. 2 is the second embodiment schematic flow sheet of the method for video playback self adaptation adjusting of the present invention;
Fig. 3 is the obtaining step schematic diagram of the relational expression of the viewing distance of target audience among the second embodiment of the video playback self adaptation of the present invention method of regulating and types of facial makeup in Beijing operas characteristic;
Fig. 4 is the 3rd embodiment schematic flow sheet of the method for video playback self adaptation adjusting of the present invention;
Fig. 5 is the obtaining step schematic diagram of the relational expression of the viewing distance of the image output area of video playback among the 3rd embodiment of the video playback self adaptation of the present invention method of regulating and target audience and Digital Television size;
Fig. 6 be the screen output brightness of video playback among the 3rd embodiment of the video playback self adaptation of the present invention method of regulating and target audience viewing distance relational expression obtain schematic flow sheet;
Fig. 7 is the first example structure schematic diagram of digital TV terminal of the present invention;
Fig. 8 is the second example structure schematic diagram of digital TV terminal of the present invention;
Fig. 9 is the 3rd example structure schematic diagram of digital TV terminal of the present invention;
Figure 10 is the structural representation of screen output parameter computing module among the 3rd embodiment of digital TV terminal of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Below with reference to accompanying drawing embodiments of the invention are described.Referring to Fig. 1, the first embodiment schematic flow sheet of the method for regulating for video playback self adaptation of the present invention.The method that the described video playback self adaptation of the embodiment of the invention is regulated comprises step:
S101 obtains the types of facial makeup in Beijing operas characteristic of target audience.
S102 determines the viewing distance of described target audience according to the types of facial makeup in Beijing operas characteristic of described target audience.
S103 calculates the image output area of video playback and the screen output brightness of video playback according to the viewing distance of described target audience, obtains the screen output parameter.
S104 according to described screen output parameter calling function interface function, regulates the output of video playback by described function.
In the specific implementation, at camera of set-top box positioned inside, perhaps with camera as an autonomous device, connect by USB access way and set-top box.By camera catch in real time, the subject image in harvester top box and video screen the place ahead, obtain the view data of the object in set-top box and video screen the place ahead.Utilize image processing techniques that real-time seizure, the view data that collects are analyzed, identified, determine that the object of characteristics of image behaviour face carries out real-time tracking, obtain the types of facial makeup in Beijing operas characteristic of target audience.According to the types of facial makeup in Beijing operas characteristic of the target audience that prestores and the relation of the data correlation between the viewing distance, determine the real-time viewing distance of target audience by the types of facial makeup in Beijing operas characteristic of the target audience that gets access to.The viewing distance of above-mentioned target audience is the horizontal range between target audience and the video screen.The image output area of video playback and the relation between the screen output brightness when watching program according to the viewing distance of target audience and target audience, image output area when the viewing distance by the target audience that gets access to calculates video playback, the width that comprises image output rectangle, height and starting point coordinate etc., and the screen output brightness during video playback, and with the image output area that obtains and screen output brightness result as the screen output parameter, the functional interface function that the chip that calls set-top box by this screen output parameter provides is realized the self adaptation adjusting of video playback on video screen.
The present embodiment obtains spectators' types of facial makeup in Beijing operas characteristic by camera, determine the real-time viewing distance of target audience according to spectators' types of facial makeup in Beijing operas characteristic, automatically adjust the output parameters such as the image output area of video playback and screen intensity according to the real-time viewing distance of target, the video playback viewing experience effect of a healthiness is provided to spectators.
Referring to Fig. 2, the second embodiment schematic flow sheet of the method for regulating for video playback self adaptation of the present invention.The method that the described video playback self adaptation of the embodiment of the invention is regulated comprises step:
S201 catches the object in digital TV screen the place ahead by camera, obtain the view data of described object.
S202 processes the view data of described object, obtains the types of facial makeup in Beijing operas characteristic of described target audience.
S203, according to the types of facial makeup in Beijing operas characteristic of described target audience, the relational expression of invocation target spectators' viewing distance and types of facial makeup in Beijing operas characteristic is determined the viewing distance of described target audience.
S204 calculates the image output area of video playback and the screen output brightness of video playback according to the viewing distance of described target audience, obtains the screen output parameter.
S205 according to described screen output parameter calling function interface function, regulates the output of video playback by described function.
In the specific implementation, at camera of set-top box positioned inside, perhaps with camera as an autonomous device, connect by USB access way and set-top box.By camera catch in real time, the subject image in harvester top box and video screen the place ahead, obtain the view data of the object in set-top box and video screen the place ahead.Utilize image processing techniques that real-time seizure, the view data that collects are analyzed, identified, determine that the object of characteristics of image behaviour face carries out real-time tracking, obtain the types of facial makeup in Beijing operas characteristic of target audience.According to the types of facial makeup in Beijing operas characteristic of the target audience that gets access to, call spectators' viewing distance and the relational expression of types of facial makeup in Beijing operas characteristic, determine the real-time viewing distance of target audience.The viewing distance of above-mentioned target audience is the horizontal range between target audience and the video screen.The image output area of video playback and the relation between the screen output brightness when watching program according to the viewing distance of target audience and target audience, image output area when the viewing distance by the target audience that gets access to calculates video playback, the width that comprises image output rectangle, height and starting point coordinate etc., and the screen output brightness during video playback, and with the image output area that obtains and screen output brightness result as the screen output parameter, the functional interface function that the chip that calls set-top box by this screen output parameter provides is realized the self adaptation adjusting of video playback on video screen.
The present embodiment obtains spectators' types of facial makeup in Beijing operas characteristic by camera, determine the real-time viewing distance of target audience according to spectators' types of facial makeup in Beijing operas characteristic, automatically adjust the output parameters such as the image output area of video playback and screen intensity according to the real-time viewing distance of target, the video playback viewing experience effect of a healthiness is provided to spectators.
Because interpersonal types of facial makeup in Beijing operas characteristic there are differences, even so that at identical viewing distance place, the different spectators' that camera obtains types of facial makeup in Beijing operas characteristic there are differences, then can determine by spectators' the types of facial makeup in Beijing operas characteristic spectators' viewing distance.When set-top box is used this function first, need to set or revise each user's types of facial makeup in Beijing operas characteristic information table, and calculate spectators' viewing distance and the relational expression of types of facial makeup in Beijing operas characteristic according to the data statistics of the information table of setting or revising.
Referring to Fig. 3, the obtaining step schematic diagram of the relational expression of the viewing distance of target audience and types of facial makeup in Beijing operas characteristic among the second embodiment of the method for regulating for video playback self adaptation of the present invention.The obtaining step of the relational expression of described viewing distance and types of facial makeup in Beijing operas characteristic comprises:
S301 arranges equally spaced a plurality of reference point of watching in the digital TV screen dead ahead.
S302 records described target audience at each described viewing distance of watching reference point, and scans, records described target audience is watched reference point in correspondence types of facial makeup in Beijing operas characteristic.
S303 calculates in the data statistics of each described viewing distance of watching reference point and corresponding types of facial makeup in Beijing operas characteristic according to described target audience, obtains the viewing distance of described target audience and the relational expression of types of facial makeup in Beijing operas characteristic.
In the specific implementation, can be with the farthest viewing distance in digital TV screen dead ahead, the distance between digital TV screen and the sofa for example, the perhaps distance of the partition wall in digital TV screen and TV the place ahead, on average be divided into m segmentation, each waypoint is watched reference point as one, and wherein, the spacing size of m segmentation can be determined according to the precision of customer requirements.The user is over against digital TV screen, and is progressively mobile towards the opposite direction of digital TV screen from the proximal location of distance digital TV screen, until the position of sofa or the position of partition wall are for example arrived in the position of sighting distance farthest.The user is progressively away from digital TV screen the time, the setup menu that provides by set-top box, respectively in each segmentation place in digital TV screen the place ahead, be that each watches the reference point place, current residing positional information, namely the viewing distance of this moment passes to set-top box, after set-top box is received positional information, start camera, the user is carried out scanning collection at the types of facial makeup in Beijing operas of current location, and record its types of facial makeup in Beijing operas characteristic.According to this method to set up, that records successively each member in the family watches the types of facial makeup in Beijing operas characteristic at reference point place at each, can obtain like this each spectators's types of facial makeup in Beijing operas characteristic and the data relationship table between the viewing distance, and example is described in table 1 below.
Table 1
The combining image processing method, to the data in the above-mentioned table 1 conclude, computing, obtain each user's viewing distance and the relational expression between the types of facial makeup in Beijing operas characteristic, L
i=F
j(K
i), wherein i represents the fragment sequence number of viewing distance, and span is 1～m, and j represents j user, and span is 1～n, L
iThe actual viewing distance that represents i segmentation position, K
iThe types of facial makeup in Beijing operas characteristic that represents i segmentation position, F
jRepresent j user's watching distance and the coefficient between the types of facial makeup in Beijing operas characteristic, both can determine the F that is fit to each user by the sample data in the above table
jExpression formula.
According to user's viewing distance and the relational expression L between the types of facial makeup in Beijing operas characteristic
i=F
j(K
i), obtain user's types of facial makeup in Beijing operas characteristic by camera, by to the analyzing of the types of facial makeup in Beijing operas characteristic that gets access to, determine user's sequence number j, namely determine target audience j, and then determine the coefficient F of its expression formula that is suitable for
j, utilize F
jWith target audience at the locational types of facial makeup in Beijing operas characteristic of corresponding viewing distance K
iThereby, the actual viewing distance L of definite target audience j
j
Referring to Fig. 4, the 3rd embodiment schematic flow sheet of the method for regulating for video playback self adaptation of the present invention.The method that the described video playback self adaptation of the embodiment of the invention is regulated comprises step:
S401 catches the object in digital TV screen the place ahead by camera, obtain the view data of described object.
S402 processes the view data of described object, obtains the types of facial makeup in Beijing operas characteristic of described target audience.
S403, according to the types of facial makeup in Beijing operas characteristic of described target audience, the relational expression of invocation target spectators' viewing distance and types of facial makeup in Beijing operas characteristic is determined the viewing distance of described target audience.
S404, obtain the size of the Digital Television that described target audience watching, viewing distance according to size and the described target audience of described Digital Television, call image output area and the viewing distance of target audience and the relational expression of Digital Television size of video playback, calculate the image output area of described video playback.
S405 according to the viewing distance of described target audience, calls the relational expression of the viewing distance of the screen output brightness of video playback and target audience, calculates the screen output brightness of described video playback.
S406 calls corresponding functional interface function according to described screen output area and screen output brightness, regulates the output of video playback by described function.
In the specific implementation, at camera of set-top box positioned inside, perhaps with camera as an autonomous device, connect by USB access way and set-top box.By camera catch in real time, the subject image in harvester top box and video screen the place ahead, obtain the view data of the object in set-top box and video screen the place ahead.Utilize image processing techniques that real-time seizure, the view data that collects are analyzed, identified, determine that the object of characteristics of image behaviour face carries out real-time tracking, obtain the types of facial makeup in Beijing operas characteristic of target audience.According to the types of facial makeup in Beijing operas characteristic of the target audience that gets access to, call spectators' viewing distance and the relational expression of types of facial makeup in Beijing operas characteristic, determine the real-time viewing distance of target audience.The viewing distance of above-mentioned target audience is the horizontal range between target audience and the video screen.According to the viewing distance of target audience and the size of Digital Television, call image output area and the viewing distance of target audience and the relational expression of Digital Television size of video playback, image output area when the viewing distance by the target audience that gets access to calculates video playback, width, height and the starting point coordinate etc. that comprise image output rectangle, and call the relational expression of the viewing distance of the screen output brightness of video playback and target audience, the screen output brightness when calculating video playback according to the viewing distance of target audience.When TV user is enabled this function of set-top box, need the at first size of input digit TV, input as the parameter that the image output area self adaptation of video playback is regulated.Calculate after the image output area and screen output brightness of video playback according to the viewing distance of target audience, with the result that calculates as the screen output parameter, the functional interface function that the chip that calls set-top box by this screen output parameter provides is realized the self adaptation adjusting of video playback on video screen.
The present embodiment obtains spectators' types of facial makeup in Beijing operas characteristic by camera, determine the real-time viewing distance of target audience according to spectators' types of facial makeup in Beijing operas characteristic, automatically adjust the output parameters such as the image output area of video playback and screen intensity according to the real-time viewing distance of target, the video playback viewing experience effect of a healthiness is provided to spectators.
In the specific implementation, the relational expression of the image output area of video playback and the viewing distance of target audience and Digital Television size is pre-stored in the set-top box, wherein Digital Television is of a size of input parameter, set-top box is called this relational expression according to the viewing distance of target audience, calculates the image output area of video playback.
Referring to Fig. 5, it is the obtaining step schematic diagram of the relational expression of the viewing distance of the image output area of video playback among the 3rd embodiment of the video playback self adaptation of the present invention method of regulating and target audience and Digital Television size.The obtaining step of the relational expression of the image output area of described video playback and the viewing distance of target audience and Digital Television size comprises:
S501, the ratio of the output screen catercorner length of setting viewing distance and video playback.
S502, ratio according to the output screen catercorner length of described viewing distance and video playback, export the width of rectangle, the relation of height in conjunction with output screen catercorner length and image, calculate the width of the image output rectangle of described viewing distance and described video playback, the relational expression of height.
S503 according to the output screen catercorner length of video playback and the ratio of Digital Television size, calculates the width of the image output rectangle of described Digital Television size and described video playback, the relational expression of height.
S504, export the width of rectangle, the relational expression of height and the image of described Digital Television size and described video playback according to the image of described viewing distance and described video playback and export the width of rectangle, the relational expression of height, export the computational methods of the starting point coordinate of rectangle in conjunction with the image of video playback, calculate image output area and the viewing distance of target audience and the relational expression of Digital Television size of described video playback.
In the specific implementation, carrying out investigation statistics by the experience situation that the sample TV user is televiewed learns, when the catercorner length ratio of the output screen of the actual watching distance of TV user and video playback is 3.5:1, user's viewing experience effect is best, also minimum on the impact of vision health, the ratio of then setting the output screen catercorner length of spectators' viewing distance and video playback is 3.5.
The ratio of width to height of video screen mostly is 16:9 in the existing panel TV, and scale parameter supposes that as basis the output width of image output rectangle on video screen of video playback is W according to this
1, output highly is H
1, then the relation between them can be expressed as H
1=9W
1/ 16, according to the relation between leg-of-mutton wide, high and its diagonal, utilize Pythagorean theorem, cornerwise length that the image that calculates video playback is exported rectangle is D
1=W
1* (16
2+ 9
2)
0.5/ 16, according to the relation between the output screen rectangle catercorner length of viewing distance and video playback, can derive the relational expression of image output rectangle between the output width on the video screen of viewing distance and video playback, that is: L=3.5*D
1=3.5*W
1* (16
2+ 9
2)
0.5/ 16, the image that both can obtain thus video playback is exported the width W of rectangle
1And height H
1And the relational expression between the viewing distance L, W
1(3.5* (16 for=16*L/
2+ 9
2)
0.5), H
1(3.5* (16 for=9*L/
2+ 9
2)
0.5), for so that the image of video playback is exported distributed rectangular in the center of video screen, also need to calculate the image output rectangle of video playback at the starting point coordinate X of video screen output
1And Y
1, according to the Digital Television dimensional parameters R of user's input, the catercorner length that obtains video screen is D
2=2.54*R, wherein, 2.54 is long measure---the conversion scale value between inch, centimetre.By video screen wide, high than and wide, the height of video screen and the relation between the diagonal, obtain the width W of video screen
2=2.54*16*R/ (16
2+ 9
2)
0.5, height H
2=2.54*9*R/ (16
2+ 9
2)
0.5, by the width W of the image of video playback output rectangle
1And height H
1, the screen width W of Digital Television
2With screen height H
2, the starting point coordinate X that exports at video screen by calculating image output rectangle
1And Y
1, its computational methods are: X
1=(W
2-W
1)/2, Y
1=(H
2-H
1)/2, X
1And Y
1Can represent by the Digital Television size R of the viewing distance L that gets access to and user's input, as follows.
X
1=(2.54*16*R/(16
2+9
2)
0.5-16*L/(3.5*(16
2+9
2)
0.5))/2
Y
1=(2.54*9*R/(16
2+9
2)
0.5-9*L/(3.5*(16
2+9
2)
0.5))/2
So far, the starting point coordinate of exporting at video screen of just having derived the image output rectangle of video playback highly passes through the viewing distance L of target audience and the relational expression that Digital Television size R expresses with output width, output.
Obtained the image starting point coordinate of output rectangle on video screen of video playback and exported width, output height by above-mentioned derivation, because the output starting point coordinate of image output rectangle and output width, output highly are with a centimetre result who calculates as unit, and when setting the image output rectangular extent of video playback, therefore requirement need to do further conversion according to the resolution of current displaying video take pixel as unit.By the interface that Video Decoder provides, can get access to the width of current decoded video chastity and take highly respectively the number of picture element, use respectively W
3And H
3Represent, the number of the picture element when calculating video playback output all over the screen in horizontal direction and the vertical direction unit length, thereby can determine take pixel as unit width, height and the starting point coordinate of the image output rectangle of video playback, concrete method for expressing is as described below:
P
x＝(W
3/W
2)*X
1
P
y=(H
3/H
2)*Y
1
P
w＝(W
3/W
2)*W
1
P
h=(H
3/H
2)*H
1
By above-mentioned equation set, determined that just the image of video playback on video screen exported the output width of rectangle, output highly and the number of the picture element that the output starting point coordinate takies respectively.Organize according to this data and call set-top box form zoom function interface function as input parameter, just the image of displaying video can be outputed to the center of video screen, realize the function of adjusting by according to the variation of the viewing distance of target audience and to the image output area self adaptation of video playback.
In addition, in the specific implementation, same TV user, i.e. same spectators, when different viewing distances was watched video, its required video screen output brightness also can change thereupon; Perhaps, in same viewing distance, its video screen output brightness of liking of different spectators also may there are differences, and then needs to adjust according to spectators' real-time viewing distance the screen output brightness of video playback.When set-top box is enabled this function first, need each user to set the screen output brightness value of oneself liking at different viewing distances, and extrapolate thus the screen output brightness of video playback and the relational expression of viewing distance, be pre-stored in the set-top box.
Referring to Fig. 6, it is the obtaining step schematic diagram of relational expression of the viewing distance of the screen output brightness of video playback among the 3rd embodiment of the video playback self adaptation of the present invention method of regulating and target audience.The obtaining step of the relational expression of the screen output brightness of described video playback and the viewing distance of target audience comprises:
S601 arranges equally spaced a plurality of reference point of watching in the digital TV screen dead ahead.
S602 records described target audience in each the described viewing distance of reference point and screen output brightness value of selection of watching.
S603 calculates in the data statistics of described each described viewing distance of watching reference point and corresponding screen output brightness value according to described target audience, obtains the relational expression of the viewing distance of the screen output brightness of described video playback and target audience.
In the specific implementation, can be with the farthest viewing distance in digital TV screen dead ahead, the distance between digital TV screen and the sofa for example, the perhaps distance of the partition wall in digital TV screen and TV the place ahead, on average be divided into m segmentation, each waypoint is watched reference point as one, and wherein, the spacing size of m segmentation can be determined according to the precision of customer requirements.The user is over against digital TV screen, and is progressively mobile towards the opposite direction of digital TV screen from the proximal location of distance digital TV screen, until the position of sofa or the position of partition wall are for example arrived in the position of sighting distance farthest.The user is progressively away from digital TV screen the time, the setup menu that provides by set-top box, respectively in each segmentation place in digital TV screen the place ahead, be that each watches the reference point place, current residing positional information, namely the viewing distance of this moment passes to set-top box, and the screen output brightness value that the own hobby of correspondence position is set passes to set-top box, and set-top box after receiving these information is got off the data record of active user's setting.According to this method to set up, record according to this viewing distance positional information screen output brightness value corresponding with it of each member in the family, form the data relationship table between viewing distance and the screen output brightness, example is described in table 2 below.
Table 2
Data communication device in the above-mentioned table 1 is crossed conclusion, calculated, obtain the viewing distance of different user and the relational expression between the screen output brightness, C
i=Q
j(L
i), wherein i represents the fragment sequence number of viewing distance, and span is 1～m, and j represents j user, and span is 1～n, C
iThe expression user is at the screen intensity value of i segmentation set positions, L
iThe viewing distance that represents i segmentation position, Q
jRepresent the screen output brightness of j user preferences and the coefficient between the viewing distance.By the sample data in the above table is concluded, calculated, determine the Q that is fit to each user
jExpression formula.Viewing distance L according to target audience
i, by the screen output brightness of video playback and the relational expression Q between the viewing distance
j, determined that just user j is at viewing distance L
iWatch the screen output brightness of liking of video on the position.
According to the screen output brightness value of video playback obtained above, by calling set-top box brightness settings functional interface function, just controlled NTSC television system NTSC screen is exported with the brightness of appointment.So far, by said method, realized the function of adjusting by according to the variation of the viewing distance of target audience and to the screen output brightness self adaptation of video playback.
Can realize realizing the function that the video playback self adaptation is regulated according to the viewing distance of target audience to the dual mode of the screen output brightness self adaptation adjustment of video playback to the image output area self adaptation adjustment of video playback with according to the viewing distance of target audience by above-mentioned viewing distance according to target audience.By obtaining the types of facial makeup in Beijing operas characteristic of target audience; judge the viewing distance of target audience; and then the output parameters such as the image output area of playing according to the viewing distance adaptively adjusting video of target audience and screen output brightness; give the user; be the video playback viewing experience effect that target audience provides a healthiness, effectively protected user's vision health.
The present embodiment understands the method for the image output rectangle of determining video playback and the method for definite screen output brightness specifically, in its derivation, all considered the difference that types of facial makeup in Beijing operas feature between the different user and different user are experienced brightness, for the impact that the factor that takes into full account user's differentiation forms result of calculation, we provide a kind of flexible control item of the user's of balance difference.The user arranges the page by what this function provided, can set an optimizing user, such as the children that pay the utmost attention to kinsfolk's age minimum, and the children's that give prominence to the key points experience effect; Also can set the nearest user of viewing distance for optimizing user, pay the utmost attention to the shortest user's experience effect of viewing distance; Also can select viewing distance user farthest to be optimizing user; Perhaps select all user's equalizations, image output rectangle and screen output brightness that the displaying video that namely draws according to the expression formula that is fit to each user is play average computing, thereby can obtain taking into account all spectators' experience result.By setting an optimizing user, take this optimizing user as target audience, realize that the self adaptation of video playback is regulated.By setting an optimizing user so that multi-user when watching program simultaneously, can be according to user's actual demand, the references object that the target that flexible choice is suitable is adjusted as the video playback output adaptive, it is the target audience in the specific implementation operation, realize the self adaptation adjusting of video playback according to the method for describing in above-described embodiment, give all kinsfolks' the view reception effect that a best is provided.
Referring to Fig. 7, look the first example structure schematic diagram of digital TV terminal for the present invention.The described digital TV terminal of the embodiment of the invention comprises:
Viewing distance computing module 300 is for the viewing distance of determining described target audience according to the types of facial makeup in Beijing operas characteristic of described target audience.
Screen output parameter computing module 500 is used for calculating the image output area of video playback and the screen output brightness of video playback according to the viewing distance of described target audience, obtains the screen output parameter.
Calling module 700 is used for according to described screen output parameter calling function interface function, regulates the output of video playback by described function.
In the specific implementation, at camera of set-top box positioned inside, perhaps with camera as an autonomous device, connect by USB access way and set-top box.By camera catch in real time, the subject image in harvester top box and video screen the place ahead, image processing module 100 utilizes image analysis technology that the view data that camera catches in real time, collects is analyzed, identified, the object of determining characteristics of image behaviour face carries out real-time tracking, obtains the types of facial makeup in Beijing operas characteristic of target audience.Viewing distance computing module 300 is according to the target audience types of facial makeup in Beijing operas characteristic that prestores and the relation of the data correlation between the viewing distance, and the types of facial makeup in Beijing operas characteristic of the target audience that gets access to by image processing module 100 is determined the real-time viewing distance of target audience.The viewing distance of above-mentioned target audience is the horizontal range between target audience and the video screen.After the viewing distance of viewing distance computing module 300 calculative determination target audience, the image output area of video playback and the relation between the screen output brightness when screen output parameter computing module 500 is watched program according to the viewing distance of target audience and target audience, image output area when the viewing distance of the target audience that calculates by viewing distance computing module 300 calculates video playback, the width that comprises image output rectangle, height and starting point coordinate etc., and the screen output brightness during video playback, and with the image output area that obtains and screen output brightness result as the screen output parameter, call the functional interface function that the chip of set-top box provides by calling module 700, realize that the self adaptation of video playback on video screen regulate.The present embodiment obtains spectators' types of facial makeup in Beijing operas characteristic by camera, determine the real-time viewing distance of target audience according to spectators' types of facial makeup in Beijing operas characteristic, automatically adjust the output parameters such as the image output area of video playback and screen output brightness according to the real-time viewing distance of target, the video playback viewing experience effect of a healthiness is provided to spectators.
Referring to Fig. 8, look the second example structure schematic diagram of digital TV terminal for the present invention.The described digital TV terminal of the embodiment of the invention comprises:
Viewing distance computing module 400 is for the viewing distance of determining described target audience according to the types of facial makeup in Beijing operas characteristic of described target audience.
Screen output parameter computing module 500 is used for calculating the image output area of video playback and the screen output brightness of video playback according to the viewing distance of described target audience, obtains the screen output parameter.
Calling module 700 is used for according to described screen output parameter calling function interface function, regulates the output of video playback by described function.
Wherein, image processing module 200 comprises:
Wherein, viewing distance computing module 400 comprises:
Call unit 410 is used for the types of facial makeup in Beijing operas characteristic according to described target audience, and the relational expression of invocation target spectators' viewing distance and types of facial makeup in Beijing operas characteristic is determined the viewing distance of described target audience.
Setting unit 420 is for equally spaced a plurality of reference point of watching is set in the digital TV screen dead ahead.
Statistics is calculated unit 440, be used for calculating in the data statistics of described each described viewing distance of watching reference point and corresponding types of facial makeup in Beijing operas characteristic according to described target audience, obtain the viewing distance of described target audience and the relational expression of types of facial makeup in Beijing operas characteristic.
In the specific implementation, at camera of set-top box positioned inside, perhaps with camera as an autonomous device, connect by USB access way and set-top box.By camera catch in real time, the subject image in harvester top box and video screen the place ahead, image acquisition units 210 in the image processing module 200 gathers obtains the subject image that camera captures, graphics processing unit 220 utilizes image analysis technology that the view data that image acquisition units 210 collects is analyzed, identified, the object of determining characteristics of image behaviour face carries out real-time tracking, obtains the types of facial makeup in Beijing operas characteristic of target audience.Call unit 410 in the viewing distance computing module 400 is according to the types of facial makeup in Beijing operas characteristic of the target audience that gets access to, and the relational expression of invocation target spectators' viewing distance and types of facial makeup in Beijing operas characteristic is determined the real-time viewing distance of target audience.The viewing distance of above-mentioned target audience is the horizontal range between target audience and the video screen.The image output area of video playback and the relation between the screen output brightness when screen output parameter computing module 500 is watched program according to the viewing distance of target audience and target audience, image output area when the viewing distance by the target audience that gets access to calculates video playback, width, height and the starting point coordinate etc. that comprise image output rectangle, and the screen output brightness during video playback, and with the image output area that obtains and screen output brightness result as the screen output parameter.The screen output parameter that calling module 700 calculates according to screen output parameter computing module 500 calls the functional interface function that the chip of set-top box provides, and realizes that the self adaptation of video playback on video screen regulate.
The present embodiment obtains spectators' types of facial makeup in Beijing operas characteristic by camera, determine the real-time viewing distance of target audience according to spectators' types of facial makeup in Beijing operas characteristic, automatically adjust the output parameters such as the image output area of video playback and screen intensity according to the real-time viewing distance of target, the video playback viewing experience effect of a healthiness is provided to spectators.
Because interpersonal types of facial makeup in Beijing operas characteristic there are differences, even so that at identical viewing distance place, the different spectators' that camera obtains types of facial makeup in Beijing operas characteristic there are differences, then can determine by spectators' the types of facial makeup in Beijing operas characteristic spectators' viewing distance.When set-top box is used this function first, need to set or revise each user's types of facial makeup in Beijing operas characteristic information table, and calculate spectators' viewing distance and the relational expression of types of facial makeup in Beijing operas characteristic according to the data statistics of the information table of setting or revising.
In the specific implementation, can be by the farthest viewing distance of setting unit 420 with the digital TV screen dead ahead, the distance between digital TV screen and the sofa for example, the perhaps distance of the partition wall in digital TV screen and TV the place ahead, on average be divided into m segmentation, each waypoint is watched reference point as one, and equally spaced a plurality of reference point of watching is set, wherein, the spacing size of m segmentation can be determined according to the precision of customer requirements.The user is over against digital TV screen, and is progressively mobile towards the opposite direction of digital TV screen from the proximal location of distance digital TV screen, until the position of sofa or the position of partition wall are for example arrived in the position of sighting distance farthest.The user is progressively away from digital TV screen the time, the setup menu that provides by setting unit 420, respectively in each segmentation place in digital TV screen the place ahead, be that each watches the reference point place current residing positional information, be that viewing distance is passed to processing unit 430, after processing unit 430 is received and recorded viewing distance information, start camera, the user is carried out scanning collection at the types of facial makeup in Beijing operas of current location, and record its types of facial makeup in Beijing operas characteristic.According to this method to set up, that records successively each member in the family watches the types of facial makeup in Beijing operas characteristic at reference point place at each, so both can obtain each spectators's types of facial makeup in Beijing operas characteristic and the data relationship table between the viewing distance, and example is described in table 3 below.
Table 3
Statistics was calculated unit 440 combining image processing methods after the data message that obtains in the above-mentioned table 1 is processed and recorded to processing unit 430, to the data in the above-mentioned table 1 conclude, computing, obtain each user's viewing distance and the relational expression between the types of facial makeup in Beijing operas characteristic, L
i=F
j(K
i), wherein i represents the fragment sequence number of viewing distance, and span is 1～m, and j represents j user, and span is 1～n, L
iThe actual viewing distance that represents i segmentation position, K
iThe types of facial makeup in Beijing operas characteristic that represents i segmentation position, F
jRepresent j user's watching distance and the coefficient between the types of facial makeup in Beijing operas characteristic, both can determine the F that is fit to each user by the sample data in the above table
jExpression formula.
Set-top box is according to user's viewing distance and the relational expression L between the types of facial makeup in Beijing operas characteristic
i=F
j(K
i), obtain user's types of facial makeup in Beijing operas characteristic by camera, by to the analyzing of the types of facial makeup in Beijing operas characteristic that gets access to, determine user's sequence number j, namely determine target audience j, and then determine the coefficient F of its expression formula that is suitable for
j, utilize F
jWith target audience at the locational types of facial makeup in Beijing operas characteristic of corresponding viewing distance K
iThereby, the actual viewing distance L of definite target audience j
j
Referring to Fig. 9, be the 3rd example structure schematic diagram of digital TV terminal of the present invention.The described digital TV terminal of the embodiment of the invention comprises:
Viewing distance computing module 400 is for the viewing distance of determining described target audience according to the types of facial makeup in Beijing operas characteristic of described target audience.
Screen output parameter computing module 600 is used for calculating the image output area of video playback and the screen output brightness of video playback according to the viewing distance of described target audience, obtains the screen output parameter.
Calling module 700 is used for according to described screen output parameter calling function interface function, regulates the output of video playback by described function.
Wherein, image processing module 200 comprises:
Wherein, viewing distance computing module 400 comprises:
Call unit 410 is used for the types of facial makeup in Beijing operas characteristic according to described target audience, and the relational expression of invocation target spectators' viewing distance and types of facial makeup in Beijing operas characteristic is determined the viewing distance of described target audience.
Setting unit 420 is for equally spaced a plurality of reference point of watching is set in the digital TV screen dead ahead.
Statistics is calculated unit 440, be used for calculating in the data statistics of described each described viewing distance of watching reference point and corresponding types of facial makeup in Beijing operas characteristic according to described target audience, obtain the viewing distance of described target audience and the relational expression of types of facial makeup in Beijing operas characteristic.
Referring to Figure 10, be the structural representation of screen output parameter computing module among the 3rd embodiment of digital TV terminal of the present invention.As figure shows, screen output parameter computing module 600 comprises:
Image output area setup unit 610 is used for the image output area according to the viewing distance setting video playback of described target audience.
Screen output brightness setup unit 620 is used for the screen output brightness according to the viewing distance setting video playback of described target audience.
Parameter set unit 630, the width of image output rectangle and the pixel number that height unit length takies when being used for according to video playback, determine the pixel number that width, height and the starting point coordinate of the image output rectangle of described video playback take, as screen output area parameter, call the corresponding function interface function
Wherein, image output area setup unit 610 comprises:
Obtain subelement 611, be used for obtaining the size of the Digital Television that described target audience watching.
First calls subelement 612, be used for the viewing distance according to size and the described target audience of described Digital Television, call image output area and the viewing distance of target audience and the relational expression of Digital Television size of video playback, calculate the image output area of described video playback.
The first computation subunit 614, be used for the ratio according to the output screen catercorner length of described viewing distance and video playback, export the width of rectangle, the relation of height in conjunction with output screen catercorner length and image, calculate the width of the image output rectangle of described viewing distance and described video playback, the relational expression of height.
The second computation subunit 615 is used for output screen catercorner length and Digital Television dimension ratio according to video playback, calculates the width of the image output rectangle of described Digital Television size and described video playback, the relational expression of height.
The 3rd computation subunit 616, be used for the width according to the image output rectangle of described viewing distance and described video playback, the relational expression of height and the image of described Digital Television size and described video playback and export the width of rectangle, the relational expression of height, export the computational methods of the starting point coordinate of rectangle in conjunction with the image of video playback, calculate image output area and the viewing distance of target audience and the relational expression of Digital Television size of described video playback.
Wherein, screen output brightness setup unit 620 comprises:
Second calls subelement 621, is used for the viewing distance according to described target audience, calls the relational expression of the viewing distance of the screen output brightness of video playback and target audience, calculates the screen output brightness of described video playback.
In the specific implementation, at camera of set-top box positioned inside, perhaps with camera as an autonomous device, connect by USB access way and set-top box.Image acquisition units 210 by camera catch in real time, the subject image in harvester top box and video screen the place ahead, collect the view data of the object in set-top box and video screen the place ahead.Graphics processing unit 220 utilizes image analysis technology that the view data that image acquisition units 210 collects is analyzed, identified, and determines that the object of characteristics of image behaviour face carries out real-time tracking, obtains the types of facial makeup in Beijing operas characteristic of target audience.Call unit 410 in the viewing distance computing module 400 calls spectators' viewing distance and the relational expression of types of facial makeup in Beijing operas characteristic according to the types of facial makeup in Beijing operas characteristic of the target audience that gets access to, and determines the real-time viewing distance of target audience.The viewing distance of above-mentioned target audience is the horizontal range between target audience and the video screen.Screen output parameter computing module 600 is according to the viewing distance of target audience and the size of Digital Television, call image output area and the viewing distance of target audience and the relational expression of Digital Television size of video playback, image output area when the viewing distance by the target audience that gets access to calculates video playback, the width that comprises image output rectangle, height and starting point coordinate etc., and call the screen output brightness of video playback and the relational expression of viewing distance, the screen output brightness when calculating video playback according to the viewing distance of target audience.When TV user is enabled this function of set-top box, need the at first size of input digit TV, the input parameter of regulating as the image output area self adaptation of video playback.Screen output parameter computing module 600 calculates after the image output area and screen output brightness of video playback according to the viewing distance of target audience, the result that calling module 700 calculates screen output parameter computing module 600 is as the screen output parameter, call the functional interface function that the chip of set-top box provides, realize that the self adaptation of video playback on video screen regulate.
The present embodiment is determined the real-time viewing distance of each target audience according to the types of facial makeup in Beijing operas characteristic of target audience, automatically regulate the image output area of video playback and the output brightness of screen according to spectators' viewing distance, the effect of watching of a healthiness is provided to spectators.
In the specific implementation, the relational expression of the image output area of video playback and the viewing distance of target audience and Digital Television size is pre-stored in the set-top box, wherein Digital Television is of a size of input parameter, TV user is input digit TV sized data as the case may be, viewing distance according to target audience calls this relational expression, calculates the image output area of video playback.
Carrying out investigation statistics by the experience situation that the sample TV user is televiewed learns, when the catercorner length ratio of the output screen of the actual watching distance of TV user and video playback is 3.5:1, user's viewing experience effect is best, also minimum on the impact of vision health, the ratio of then setting the output screen catercorner length of spectators' viewing distance and video playback by the setting subelement 613 of image output area setup unit 610 is 3.5.
The ratio of width to height of video screen mostly is 16:9 in the existing panel TV, and scale parameter supposes first during 614 work of the first computation subunit that as basis the output width of image output on video screen of video playback is W according to this
1, output highly is H
1, then the relation between them can be expressed as H
1=9W
1/ 16, according to the relation between leg-of-mutton wide, high and its diagonal, utilize Pythagorean theorem, cornerwise length that the image that calculates video playback is exported rectangle is D
1=W
1* (16
2+ 9
2)
0.5/ 16, according to the relation between the output screen rectangle catercorner length of viewing distance and video playback, can calculate the relational expression of image output rectangle between the output width on the video screen of deriving viewing distance and video playback, that is: L=3.5*D
1=3.5*W
1* (16
2+ 9
2)
0.5/ 16, the image that both can obtain thus video playback is exported the width W of rectangle
1And height H
1And the relational expression between the viewing distance L, W
1(3.5* (16 for=16*L/
2+ 9
2)
0.5), H
1(3.5* (16 for=9*L/
2+ 9
2)
0.5).For so that the image of video playback output distributed rectangular in the center of video screen, also needs to calculate the starting point coordinate X of the image output rectangle of video playback
1And Y
1, the second computation subunit 615 is according to the Digital Television dimensional parameters R of user's input, and the catercorner length that obtains video screen is D
2=2.54*R, wherein, 2.54 is long measure---inch, centimetre, between the conversion scale value, in the described method of the present embodiment take centimetre as long measure.By video screen wide, high than and wide, the height of video screen and the relation between the diagonal, obtain the width W of video screen
2=2.54*16*R/ (16
2+ 9
2)
0.5, height H
2=2.54*9*R/ (16
2+ 9
2)
0.5The 3rd computation subunit 616 is according to the width W of the image output rectangle of video playback
1And height H
1, the screen width W of Digital Television
2With screen height H
2, by calculating the starting point coordinate X of image output rectangle
1And Y
1, its computational methods are: X
1=(W
2-W
1)/2, Y
1=(H
2-H
1)/2, X
1And Y
1Can represent by the Digital Television size R of the viewing distance L that gets access to and user's input, as follows.
X
1=(2.54*16*R/(16
2+9
2)
0.5-16*L/(3.5*(16
2+9
2)
0.5))/2
Y
1=(2.54*9*R/(16
2+9
2)
0.5-9*L/(3.5*(16
2+9
2)
0.5))/2
So far, just derived the coordinate of image output rectangle of video playback and width, highly by the viewing distance L of target audience and the relational expression of Digital Television size R expression.
The starting point coordinate of image output rectangle of video playback and width, have highly been obtained by above-mentioned derivation, owing to the starting point coordinate of image output rectangle and width, highly being with a centimetre result who calculates as unit, and when setting the image output rectangular extent of video playback, therefore requirement need to do further conversion according to the resolution of current displaying video take pixel as unit.Parameter set unit 630 is by the interface that Video Decoder provides, and gets access to the width of current decoded video chastity and takies highly respectively the number of picture element, uses respectively W
3And H
3Represent, the number of the picture element when calculating again video playback output all over the screen in horizontal direction and the vertical direction unit length, thereby determine width, height and the starting point coordinate of the image output rectangle of video playback take pixel as unit, concrete method for expressing is as described below:
P
x=(W
3/W
2)*X
1
P
y＝(H
3/H
2)*Y
1
P
w=(W
3/W
2)*W
1
P
h=(H
3/H
2)*H
1
By above-mentioned equation set, just determined the number of the picture element that width, height and the starting point coordinate of the image output rectangle of video playback on video screen take respectively.Organize according to this data as input parameter, by calling of 700 pairs of set-top box forms of calling module zoom function interface function, just the image of displaying video can be outputed to the center of video screen.By said method, realized the function of adjusting by according to the variation of the viewing distance of target audience and to the image output area self adaptation of video playback.
In the specific implementation, same TV user, i.e. same spectators, when different viewing distances was watched video, its required video screen output brightness also can change thereupon; Perhaps, in same viewing distance, its video screen output brightness of liking of different spectators also may there are differences, and then needs to adjust according to spectators' real-time viewing distance the screen output brightness of video playback.When set-top box is enabled this function first, need each user to set the screen output brightness value of oneself liking at different viewing distances, and extrapolate thus the screen output brightness of video playback and the relational expression of viewing distance, be pre-stored in the set-top box, when using this function, by calling this relational expression, in conjunction with spectators' viewing distance realization the self adaptation of the screen output brightness of video playback is regulated.
In the specific implementation, can be by subelement 622 being set with the farthest viewing distance in digital TV screen dead ahead, the distance between digital TV screen and the sofa for example, on average be divided into m segmentation, each waypoint is watched reference point as one, equally spaced a plurality of reference point of watching is set, and wherein, the spacing size of m segmentation can be determined according to the precision of customer requirements.The user is over against digital TV screen, and is progressively mobile towards the opposite direction of digital TV screen from the proximal location of distance digital TV screen, until the position of sighting distance farthest.The user is progressively away from digital TV screen the time, the setup menu that provides by subelement 622 is set, respectively in each segmentation place in digital TV screen the place ahead, be that each watches the reference point place current residing positional information, be that viewing distance passes to record subelement 623, the screen output brightness value of oneself liking that correspondence position meanwhile is set passes to record subelement 623.According to this method to set up, record according to this viewing distance screen output brightness value corresponding with it that each member sets in the family, form the data relationship table between viewing distance and the screen output brightness, example is described in table 4 below.
Table 4
According to the screen output brightness value of video playback obtained above, call set-top box brightness settings functional interface function by calling module 700, just controlled NTSC television system NTSC screen is exported with the brightness of appointment.So far, by said method, realized the function of adjusting by according to the variation of the viewing distance of target audience and to the screen output brightness self adaptation of video playback.
Can realize realizing the function that the video playback self adaptation is regulated according to the viewing distance of target audience to the dual mode of the screen output brightness self adaptation adjustment of video playback to the image output area self adaptation adjustment of video playback with according to the variation of the viewing distance of target audience by the variation of above-mentioned viewing distance according to target audience.By obtaining the types of facial makeup in Beijing operas characteristic of target audience; judge the viewing distance of target audience; and then according to image output area and the screen output brightness of the viewing distance Adaptive Modulation video playback of target audience; give the visual effect of watching of a healthiness of user, effectively protected user's vision health.
Understand specifically the method for the image output rectangle of determining video playback and the method for definite screen output brightness in the present embodiment, in its derivation, all considered the difference that types of facial makeup in Beijing operas feature between the different user and different user are experienced brightness, the impact that result of calculation is formed for the factor that takes into full account user's differentiation, the embodiment of the invention also provides a kind of flexible control item of the user's of balance difference, has increased optimization module 800.The user can set an optimizing user by optimizing the page that arranges that module 800 provides, such as the children that pay the utmost attention to kinsfolk's age minimum, and the children's that give prominence to the key points experience effect; Also can set the nearest user of viewing distance for optimizing user, pay the utmost attention to the shortest user's experience effect of viewing distance; Also can select viewing distance user farthest to be optimizing user; Perhaps select all user's equalizations, image output rectangle and screen output brightness that the displaying video that namely draws according to the expression formula that is fit to each user is play average computing, thereby can obtain taking into account all spectators' experience result.By setting an optimizing user, take this optimizing user as target audience, realize that the self adaptation of video playback is regulated.Just can be when the multi-user watches program simultaneously by this optimization module, actual demand according to the user, the references object that the target that flexible choice is suitable is adjusted as the video playback output adaptive, it is the target audience in the specific implementation operation, realize the self adaptation adjusting of video playback according to the method for describing in above-described embodiment, give all kinsfolks' the view reception effect that a best is provided.
The embodiment of the invention is obtained the types of facial makeup in Beijing operas characteristic of the target audience of watching TV programme, determine the viewing distance of target audience according to types of facial makeup in Beijing operas characteristic, determine the output parameters such as the image output area of video playback and screen output brightness according to the viewing distance of target audience again, call corresponding functional interface function by above-mentioned output parameter, realize the image output area of video playback and the self adaptation adjusting of screen output brightness.The present invention has changed the image output area of video playback and the limitation that the screen output brightness can not be regulated automatically in the prior art, realization is regulated the image output area of video playback and the self adaptation regulating effect of screen output brightness automatically according to spectators' real-time viewing distance, a kind of video-see effect of healthiness is provided for TV user, has effectively ensured the vision health of TV user.
Device embodiment described above only is schematic, wherein said unit as the separating component explanation can or can not be physically to separate also, the parts that show as the unit can be or can not be physical locations also, namely can be positioned at a place, perhaps also can be distributed on a plurality of network element.Can select according to the actual needs wherein some or all of module to realize the purpose of the present embodiment scheme.Those of ordinary skills namely can understand and implement in the situation that do not pay performing creative labour.
Through the above description of the embodiments, those skilled in the art can be well understood to each execution mode and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware.Based on such understanding, the part that technique scheme contributes to prior art in essence in other words can embody with the form of software product, this computer software product can be stored in the computer-readable recording medium, such as ROM/RAM, magnetic disc, CD etc., comprise that some instructions are with so that a computer equipment (can be personal computer, server, perhaps network equipment etc.) carry out the described method of some part of each embodiment or embodiment.
Above-described execution mode does not consist of the restriction to this technical scheme protection range.Any at above-mentioned execution mode spirit and principle within do modification, be equal to and replace and improvement etc., all should be included within the protection range of this technical scheme.
Claims (21)
1. the method that the video playback self adaptation is regulated is characterized in that, comprising:
Obtain the types of facial makeup in Beijing operas characteristic of target audience;
Determine the viewing distance of described target audience according to the types of facial makeup in Beijing operas characteristic of described target audience;
Viewing distance according to described target audience calculates the image output area of video playback and the screen output brightness of video playback, obtains the screen output parameter;
According to described screen output parameter calling function interface function, regulate the output of video playback by described function.
2. the method for claim 1 is characterized in that, the described types of facial makeup in Beijing operas characteristic of obtaining target audience comprises:
Catch the object in digital TV screen the place ahead by camera, obtain the view data of described object;
Process the view data of described object, obtain the types of facial makeup in Beijing operas characteristic of described target audience.
3. the method for claim 1 is characterized in that, the described viewing distance of determining described target audience according to the types of facial makeup in Beijing operas characteristic of described target audience comprises:
According to the types of facial makeup in Beijing operas characteristic of described target audience, the relational expression of invocation target spectators' viewing distance and types of facial makeup in Beijing operas characteristic is determined the viewing distance of described target audience;
Wherein, the viewing distance of described target audience is the horizontal range between described target audience and the digital TV screen.
4. method as claimed in claim 3 is characterized in that, the obtaining step of the relational expression of the viewing distance of described target audience and types of facial makeup in Beijing operas characteristic comprises:
Equally spaced a plurality of reference point of watching is set in the digital TV screen dead ahead;
Record described target audience at each described viewing distance of watching reference point, and scan, record described target audience is watched reference point in correspondence types of facial makeup in Beijing operas characteristic;
Calculate in the data statistics of described each described viewing distance of watching reference point and corresponding types of facial makeup in Beijing operas characteristic according to described target audience, obtain the viewing distance of described target audience and the relational expression of types of facial makeup in Beijing operas characteristic.
5. the method for claim 1 is characterized in that, the described image output area of calculating video playback according to the viewing distance of target audience comprises:
Obtain the size of the Digital Television that described target audience watching;
According to the viewing distance of size and the described target audience of described Digital Television, call image output area and the viewing distance of target audience and the relational expression of Digital Television size of video playback, calculate the image output area of described video playback;
Wherein, the image output area of described video playback comprises width, height and the starting point coordinate of image output rectangle.
6. method as claimed in claim 5 is characterized in that, the obtaining step of the relational expression of the image output area of described video playback and the viewing distance of target audience and Digital Television size comprises:
Set the ratio of the output screen catercorner length of viewing distance and video playback;
Ratio according to the output screen catercorner length of described viewing distance and video playback, export the width of rectangle, the relation of height in conjunction with output screen catercorner length and image, calculate the width of the image output rectangle of described viewing distance and described video playback, the relational expression of height;
According to the output screen catercorner length of video playback and the ratio of Digital Television size, calculate the width of the image output rectangle of described Digital Television size and described video playback, the relational expression of height;
Export the width of rectangle, the relational expression of height and the image of described Digital Television size and described video playback according to the image of described viewing distance and described video playback and export the width of rectangle, the relational expression of height, export the computational methods of the starting point coordinate of rectangle in conjunction with the image of video playback, calculate image output area and the viewing distance of target audience and the relational expression of Digital Television size of described video playback.
7. method as claimed in claim 5 is characterized in that, after the described screen output area that calculates described video playback, comprising:
The width of image output rectangle and the pixel number that height unit length takies during according to video playback, determine the pixel number that width, height and the starting point coordinate of the image output rectangle of described video playback take, as screen output area parameter, call the corresponding function interface function.
8. the method for claim 1 is characterized in that, the described screen output brightness that calculates video playback according to the viewing distance of target audience comprises:
According to the viewing distance of described target audience, call the relational expression of the viewing distance of the screen output brightness of video playback and target audience, calculate the screen output brightness of described video playback.
9. method as claimed in claim 8 is characterized in that, the obtaining step of the relational expression of the screen output brightness of described video playback and the viewing distance of target audience comprises:
Equally spaced a plurality of reference point of watching is set in the digital TV screen dead ahead;
Record described target audience in each the described viewing distance of reference point and screen output brightness value of selection of watching;
Calculate in the data statistics of described each described viewing distance of watching reference point and corresponding screen output brightness value according to described target audience, obtain the relational expression of the viewing distance of the screen output brightness of described video playback and target audience.
10. such as each described method of claim 4-9, it is characterized in that, described method comprises:
As the spectators in described Digital Television the place ahead during more than a people, set according to described spectators' actual demand and to optimize spectators, the target audience that described optimization spectators are regulated as video playback.
11. a digital TV terminal is characterized in that, comprising:
Image processing module is for the types of facial makeup in Beijing operas characteristic of obtaining target audience;
The viewing distance computing module is for the viewing distance of determining described target audience according to the types of facial makeup in Beijing operas characteristic of described target audience;
Screen output parameter computing module is used for calculating the image output area of video playback and the screen output brightness of video playback according to the viewing distance of described target audience, obtains the screen output parameter;
Calling module is used for according to described screen output parameter calling function interface function, regulates the output of video playback by described function.
12. digital TV terminal as claimed in claim 11 is characterized in that, described image processing module comprises:
Image acquisition units is used for obtaining the view data of the object in digital TV screen the place ahead that camera captures;
Graphics processing unit for the treatment of the view data of described object, obtains the types of facial makeup in Beijing operas characteristic of described target audience.
13. digital TV terminal as claimed in claim 11 is characterized in that, described viewing distance computing module comprises:
Call unit is used for the types of facial makeup in Beijing operas characteristic according to described target audience, and the relational expression of invocation target spectators' viewing distance and types of facial makeup in Beijing operas characteristic is determined the viewing distance of described target audience;
Wherein, the viewing distance of described target audience is the horizontal range between described target audience and the digital TV screen.
14. digital TV terminal as claimed in claim 13 is characterized in that, described viewing distance computing module comprises:
Setting unit is for equally spaced a plurality of reference point of watching is set in the digital TV screen dead ahead;
Processing unit is used for recording described target audience at each described viewing distance of watching reference point, and scans, records described target audience is watched reference point in correspondence types of facial makeup in Beijing operas characteristic;
Statistics is calculated the unit, is used for calculating in the data statistics of described each described viewing distance of watching reference point and corresponding types of facial makeup in Beijing operas characteristic according to described target audience, obtains the viewing distance of described target audience and the relational expression of types of facial makeup in Beijing operas characteristic.
15. digital TV terminal as claimed in claim 11 is characterized in that, described screen output parameter computing module comprises:
Image output area setup unit is used for the image output area according to the viewing distance setting video playback of described target audience;
Screen output brightness setup unit is used for the screen output brightness according to the viewing distance setting video playback of described target audience.
16. digital TV terminal as claimed in claim 15 is characterized in that, described image output area setup unit comprises:
Obtain subelement, be used for obtaining the size of the Digital Television that described target audience watching;
First calls subelement, be used for the viewing distance according to size and the described target audience of described Digital Television, call image output area and the viewing distance of target audience and the relational expression of Digital Television size of video playback, calculate the image output area of described video playback;
Wherein, the image output area of described video playback comprises width, height and the starting point coordinate of image output rectangle.
17. digital TV terminal as claimed in claim 16 is characterized in that, described image output area setup unit comprises:
Set subelement, be used for the ratio of the output screen catercorner length of setting viewing distance and video playback;
The first computation subunit, be used for the ratio according to the output screen catercorner length of described viewing distance and video playback, export the width of rectangle, the relation of height in conjunction with output screen catercorner length and image, calculate the width of the image output rectangle of described viewing distance and described video playback, the relational expression of height;
The second computation subunit is used for output screen catercorner length and Digital Television dimension ratio according to video playback, calculates the width of the image output rectangle of described Digital Television size and described video playback, the relational expression of height;
The 3rd computation subunit, be used for the width according to the image output rectangle of described viewing distance and described video playback, the relational expression of height and the image of described Digital Television size and described video playback and export the width of rectangle, the relational expression of height, export the computational methods of the starting point coordinate of rectangle in conjunction with the image of video playback, calculate image output area and the viewing distance of target audience and the relational expression of Digital Television size of described video playback.
18. digital TV terminal as claimed in claim 15 is characterized in that, described screen output parameter computing module comprises:
Parameter set unit, the width of image output rectangle and the pixel number that height unit length takies when being used for according to video playback, determine the pixel number that width, height and the starting point coordinate of the image output rectangle of described video playback take, as screen output area parameter, call the corresponding function interface function.
19. digital TV terminal as claimed in claim 15 is characterized in that, described screen output brightness setup unit comprises:
Second calls subelement, is used for the viewing distance according to described target audience, calls the relational expression of the viewing distance of the screen output brightness of video playback and target audience, calculates the screen output brightness of described video playback.
20. digital TV terminal as claimed in claim 19 is characterized in that, described screen output brightness setup unit comprises:
Subelement is set, for equally spaced a plurality of reference point of watching is set in the digital TV screen dead ahead;
The record subelement is used for recording described target audience in each the described viewing distance of reference point and screen output brightness value of selection of watching;
The estimator unit, be used for calculating in the data statistics of described each described viewing distance of watching reference point and corresponding screen output brightness value according to described target audience, obtain the relational expression of the viewing distance of the screen output brightness of described video playback and target audience.
21. such as each described digital TV terminal of claim 14-20, it is characterized in that, described digital TV terminal comprises:
Optimize module, when being used for spectators when described Digital Television the place ahead more than a people, setting according to described spectators' actual demand and to optimize spectators, with the target audience of described optimization spectators as the video playback adjusting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105086866A CN103002349A (en) | 2012-12-03 | 2012-12-03 | Adaptive adjustment method and device for video playing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105086866A CN103002349A (en) | 2012-12-03 | 2012-12-03 | Adaptive adjustment method and device for video playing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103002349A true CN103002349A (en) | 2013-03-27 |
Family
ID=47930404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105086866A Pending CN103002349A (en) | 2012-12-03 | 2012-12-03 | Adaptive adjustment method and device for video playing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103002349A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104661397A (en) * | 2013-11-21 | 2015-05-27 | 广东美的集团芜湖制冷设备有限公司 | Key backlight lamp adjusting system and adjusting method |
| CN104768064A (en) * | 2014-01-02 | 2015-07-08 | 冠捷投资有限公司 | Method for dynamically optimizing image or sound based on user location |
| CN104767947A (en) * | 2014-01-07 | 2015-07-08 | 冠捷投资有限公司 | Electronic device controlled by radio frequency remote controller |
| CN106534731A (en) * | 2016-10-28 | 2017-03-22 | 深圳创维－Rgb电子有限公司 | Television smart control method, device, equipment and system |
| WO2017088472A1 (en) * | 2015-11-26 | 2017-06-01 | 乐视控股（北京）有限公司 | Video playing processing method and device |
| WO2018027416A1 (en) * | 2016-08-06 | 2018-02-15 | 吕秋萍 | Method for adjusting brightness of television based on human face, and television |
| WO2019014827A1 (en) * | 2017-07-18 | 2019-01-24 | 深圳市智晟达科技有限公司 | Method for adjusting playing mode according to sitting position, and digital television |
| CN111212324A (en) * | 2020-01-14 | 2020-05-29 | 宋秀梅 | Dynamic adjusting platform and method based on big data analysis |
| CN112967696A (en) * | 2021-03-22 | 2021-06-15 | 北海惠科光电技术有限公司 | Liquid crystal panel display parameter adjusting method and system, liquid crystal panel and storage medium |
| CN115209193A (en) * | 2022-07-15 | 2022-10-18 | 海宁奕斯伟集成电路设计有限公司 | Display processing equipment and method and display system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101072293A (en) * | 2006-05-09 | 2007-11-14 | 深圳Tcl新技术有限公司 | Device and method for automatically regulating television screen display |
| CN101079972A (en) * | 2006-05-24 | 2007-11-28 | 松下电器产业株式会社 | Control method, control device and image system |
| CN101188665A (en) * | 2007-11-05 | 2008-05-28 | 康佳集团股份有限公司 | An intelligent adjusting method and device for TV set image |
| CN101192270A (en) * | 2007-11-08 | 2008-06-04 | 北京中星微电子有限公司 | Display, device and method for accomplishing sight protection |
| CN101299807A (en) * | 2007-04-30 | 2008-11-05 | 深圳Tcl新技术有限公司 | Display device capable of automatically regulating display parameter as well as implementation method thereof |
| CN101409784A (en) * | 2007-10-10 | 2009-04-15 | 联想(北京)有限公司 | Camera device and information-prompting apparatus |
| CN101488030A (en) * | 2009-02-10 | 2009-07-22 | 深圳Tcl新技术有限公司 | Display screen adjustment device and method |
| CN101894538A (en) * | 2010-07-15 | 2010-11-24 | 优视科技有限公司 | Method and device for controlling screen display frames |
| CN102510457A (en) * | 2011-12-16 | 2012-06-20 | Tcl王牌电器(惠州)有限公司 | Method for protecting eyesight |
-
2012
- 2012-12-03 CN CN2012105086866A patent/CN103002349A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101072293A (en) * | 2006-05-09 | 2007-11-14 | 深圳Tcl新技术有限公司 | Device and method for automatically regulating television screen display |
| CN101079972A (en) * | 2006-05-24 | 2007-11-28 | 松下电器产业株式会社 | Control method, control device and image system |
| CN101299807A (en) * | 2007-04-30 | 2008-11-05 | 深圳Tcl新技术有限公司 | Display device capable of automatically regulating display parameter as well as implementation method thereof |
| CN101409784A (en) * | 2007-10-10 | 2009-04-15 | 联想(北京)有限公司 | Camera device and information-prompting apparatus |
| CN101188665A (en) * | 2007-11-05 | 2008-05-28 | 康佳集团股份有限公司 | An intelligent adjusting method and device for TV set image |
| CN101192270A (en) * | 2007-11-08 | 2008-06-04 | 北京中星微电子有限公司 | Display, device and method for accomplishing sight protection |
| CN101488030A (en) * | 2009-02-10 | 2009-07-22 | 深圳Tcl新技术有限公司 | Display screen adjustment device and method |
| CN101894538A (en) * | 2010-07-15 | 2010-11-24 | 优视科技有限公司 | Method and device for controlling screen display frames |
| CN102510457A (en) * | 2011-12-16 | 2012-06-20 | Tcl王牌电器(惠州)有限公司 | Method for protecting eyesight |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104661397A (en) * | 2013-11-21 | 2015-05-27 | 广东美的集团芜湖制冷设备有限公司 | Key backlight lamp adjusting system and adjusting method |
| CN104661397B (en) * | 2013-11-21 | 2018-08-24 | 广东美的集团芜湖制冷设备有限公司 | Key backlight lamp regulating system and its adjusting method |
| CN104768064A (en) * | 2014-01-02 | 2015-07-08 | 冠捷投资有限公司 | Method for dynamically optimizing image or sound based on user location |
| CN104767947A (en) * | 2014-01-07 | 2015-07-08 | 冠捷投资有限公司 | Electronic device controlled by radio frequency remote controller |
| WO2017088472A1 (en) * | 2015-11-26 | 2017-06-01 | 乐视控股（北京）有限公司 | Video playing processing method and device |
| WO2018027416A1 (en) * | 2016-08-06 | 2018-02-15 | 吕秋萍 | Method for adjusting brightness of television based on human face, and television |
| CN106534731A (en) * | 2016-10-28 | 2017-03-22 | 深圳创维－Rgb电子有限公司 | Television smart control method, device, equipment and system |
| WO2019014827A1 (en) * | 2017-07-18 | 2019-01-24 | 深圳市智晟达科技有限公司 | Method for adjusting playing mode according to sitting position, and digital television |
| CN111212324A (en) * | 2020-01-14 | 2020-05-29 | 宋秀梅 | Dynamic adjusting platform and method based on big data analysis |
| CN112967696A (en) * | 2021-03-22 | 2021-06-15 | 北海惠科光电技术有限公司 | Liquid crystal panel display parameter adjusting method and system, liquid crystal panel and storage medium |
| CN115209193A (en) * | 2022-07-15 | 2022-10-18 | 海宁奕斯伟集成电路设计有限公司 | Display processing equipment and method and display system |
| CN115209193B (en) * | 2022-07-15 | 2024-03-12 | 海宁奕斯伟集成电路设计有限公司 | Display processing equipment and method and display system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103002349A (en) | Adaptive adjustment method and device for video playing | |
| US11729351B2 (en) | System and methods for facilitating virtual presence | |
| GB2440376A (en) | Wide angle video conference imaging | |
| CN110764859B (en) | Method for automatically adjusting and optimally displaying visible area of screen | |
| CN103248946B (en) | The method and system that a kind of video image quickly transmits | |
| CN105472440B (en) | The method for previewing and smart television of video program | |
| CN103428577A (en) | Display apparatus, control apparatus, television receiver, method of controlling display apparatus, program, and recording medium | |
| CN102595075A (en) | Television device and channel control method thereof | |
| CN109511004B (en) | Video processing method and device | |
| WO2022262839A1 (en) | Stereoscopic display method and apparatus for live performance, medium, and system | |
| CN113542781B (en) | Live broadcasting room game interaction method and related device | |
| CN107277631A (en) | A kind of local methods of exhibiting of picture and device | |
| CN114449303A (en) | Live broadcast picture generation method and device, storage medium and electronic device | |
| CN107087145A (en) | Multi-channel video carries out the method and device that 360 degree of panoramic videos are shown | |
| KR101939130B1 (en) | Methods for broadcasting media contents, methods for providing media contents and apparatus using the same | |
| CN103384314A (en) | Intelligent picture quality adjusting method based on dynamic and static pictures | |
| CN115209193B (en) | Display processing equipment and method and display system | |
| CN103458307A (en) | Picture processing method and device | |
| CN110933501B (en) | Child eye protection method for TV device, TV device with child eye protection function and system | |
| CN106604052A (en) | Method and device for establishing live connection | |
| Xing et al. | Factors impacting quality of experience in stereoscopic images | |
| CN112135057A (en) | Video image processing method | |
| CN109862419B (en) | Intelligent digital laser television interaction method and system | |
| CN114979699B (en) | Layout method of live interface, readable medium and related equipment | |
| CN112367534B (en) | Virtual-real mixed digital live broadcast platform and implementation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130327 |
|
| RJ01 | Rejection of invention patent application after publication |