WO2018040419A1 - Video playing method and apparatus for curved-surface television - Google Patents
Video playing method and apparatus for curved-surface television Download PDFInfo
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- WO2018040419A1 WO2018040419A1 PCT/CN2016/112353 CN2016112353W WO2018040419A1 WO 2018040419 A1 WO2018040419 A1 WO 2018040419A1 CN 2016112353 W CN2016112353 W CN 2016112353W WO 2018040419 A1 WO2018040419 A1 WO 2018040419A1
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000000694 effects Effects 0.000 claims abstract description 28
- 230000000007 visual effect Effects 0.000 claims description 49
- 238000001514 detection method Methods 0.000 claims description 43
- 238000012360 testing method Methods 0.000 claims description 34
- 230000004044 response Effects 0.000 claims description 28
- 230000008054 signal transmission Effects 0.000 claims description 6
- 230000003993 interaction Effects 0.000 abstract description 3
- 241000282414 Homo sapiens Species 0.000 description 22
- 238000010586 diagram Methods 0.000 description 19
- 230000008859 change Effects 0.000 description 15
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- 230000007704 transition Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440263—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the spatial resolution, e.g. for displaying on a connected PDA
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/485—End-user interface for client configuration
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/485—End-user interface for client configuration
- H04N21/4852—End-user interface for client configuration for modifying audio parameters, e.g. switching between mono and stereo
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/485—End-user interface for client configuration
- H04N21/4854—End-user interface for client configuration for modifying image parameters, e.g. image brightness, contrast
Definitions
- the present invention relates to the field of curved television technology, and in particular, to a curved television video playing method and apparatus.
- the object when an object is closer to the human eye, the object has a higher percentage of the human eye visual image, and vice versa.
- the user's eye visual direction shifts to the left, the user generally wants to pay attention to the visual image.
- the left side of the content if the details of the left side are displayed in more detail, the user's visual experience will be improved.
- the existing curved TV cannot adjust the resolution and angle of the video playback screen according to the user's position and visual angle, and needs to be further improved in terms of the field appearance of the painting.
- the main object of the present invention is to provide a method and a device for playing a curved TV video, which aims to solve the problem that the existing curved TV can not adjust the resolution, angle and audio track of the video playback screen according to the user's position and visual angle. .
- a curved television video playing method includes the following steps:
- the audio track is adjusted according to the relationship between the distance and the preset sound effect distance.
- the step of detecting a distance and a deviation angle of the target object from the curved television comprises:
- the step of adjusting the resolution of the curved television playing screen according to the relationship between the distance and the preset viewing distance comprises:
- the step of adjusting the offset rate of the play picture according to the deviation angle comprises:
- the offset rate of the playback picture is adjusted according to the offset rate.
- the step of adjusting the resolution of the curved television playing screen according to the relationship between the distance and the preset viewing distance comprises:
- the step of adjusting the audio track played according to the relationship between the distance and the preset sound effect distance comprises:
- the audio track is switched by the track volume gradient.
- the method further includes:
- the distance and deviation angle adjust the resolution and offset rate of the playback screen.
- the time interval of the resolution and/or the offset rate of the curved television playback picture is adjusted.
- the present invention further provides a curved TV video playing device, including:
- a detecting module configured to detect a distance and a deviation angle of the target object from the curved television
- An adjustment module configured to adjust a resolution of the surface television broadcast screen according to the relationship between the distance and the preset viewing distance
- the audio track is adjusted according to the relationship between the distance and the preset sound effect distance.
- the detecting module comprises:
- a signal unit configured to send a test signal to the wireless headset worn by the target object through the curved television, and receive the feedback response signal and the visual angle information
- a calculating unit configured to calculate a total time that the curved television sends the test signal to receive the response signal
- the adjustment module comprises:
- a determining unit configured to determine a vertical resolution of the play picture according to the distance, a preset viewing distance, and a vertical resolution of the video code stream, and determine a horizontal resolution of the play picture according to a relationship between the horizontal resolution and the vertical resolution;
- the adjustment unit is configured to adjust the resolution of the surface television playback screen according to the vertical resolution and the horizontal resolution of the playback screen.
- the determining unit is further configured to determine an offset rate of the play picture according to the deviation angle, the horizontal resolution of the play picture, and the horizontal resolution of the video code stream;
- the adjusting unit is further configured to adjust an offset rate of the play picture according to the offset rate.
- the adjustment module is further configured to make the target object closer to the curved TV, and the content displayed in the play screen is larger, and the farther the target object is from the curved TV, the more images are displayed in the play screen.
- the adjusting module is further configured to perform audio track switching by using a track volume gradation when a range of an optimal sound effect distance of the target object and the curved television is changed.
- the adjusting module is further configured to: when the distance between the detected distance and the previous detected distance is greater than or equal to the preset distance value, and/or the deviation angle of the current detection and the deviation angle of the previous detection When the change value is greater than or equal to the preset angle value, the resolution and the offset rate of the current playback picture are kept unchanged;
- the distance and deviation angle adjust the resolution and offset rate of the playback screen.
- the adjustment module is further configured to adjust a time interval of a resolution and/or an offset rate of the curved television playing screen.
- the invention detects the distance and the deviation angle of the target object from the curved television; adjusts the resolution of the curved television playing screen according to the relationship between the distance and the preset viewing distance; and adjusts the offset rate of the playing screen according to the deviation angle;
- the distance from the preset sound effect adjusts the audio track.
- FIG. 1 is a schematic flow chart of a first embodiment of a method for playing a curved television video according to the present invention
- FIG. 2 is a schematic diagram showing the refinement process of an embodiment of step S10 in FIG. 1;
- FIG. 3 is a schematic diagram of a target object wearing a wireless earphone to watch a curved television
- FIG. 4 is a schematic diagram of a video stream and a curved television playing screen
- FIG. 5 is a schematic diagram showing the refinement process of an embodiment of step S20 in FIG. 1;
- FIG. 6 is a schematic diagram showing the refinement process of an embodiment of step S30 in FIG. 1;
- FIG. 7 is a schematic flow chart of a second embodiment of a method for playing a curved television video according to the present invention.
- FIG. 8 is a schematic diagram of functional modules of a preferred embodiment of a curved television video playback device of the present invention.
- FIG. 9 is a schematic diagram of a refinement function module of an embodiment of the detection module of FIG. 8;
- FIG. 10 is a schematic diagram of a refinement function module of an embodiment of the adjustment module of FIG. 8.
- FIG. 10 is a schematic diagram of a refinement function module of an embodiment of the adjustment module of FIG. 8.
- the main solution of the embodiment of the present invention is: detecting a distance and a deviation angle between the target object and the curved television; adjusting the resolution of the curved television playing screen according to the relationship between the distance and the preset viewing distance; and adjusting the playing screen according to the deviation angle
- the offset rate of the audio is adjusted according to the relationship between the distance and the preset sound effect distance.
- the present invention provides a curved television video playing method.
- FIG. 1 is a schematic flow chart of a first embodiment of a method for playing a curved television video according to the present invention.
- the curved TV video playing method includes:
- Step S10 detecting a distance and a deviation angle between the target object and the curved television
- the world that human beings perceive is three-dimensional.
- the picture and sound that humans perceive will change as the human position moves.
- the percentage of the object occupying the human eye is higher, and vice versa.
- the user's visual direction is shifted to the left, it generally indicates that the user wants to pay more attention to the content on the left side of the visual image.
- the details of the left content are displayed in more detail, the visual experience of the user is improved.
- the visual direction can be expressed by angle, specifically, the user's eyes The angle of deviation of the projected direction from the vertical line of the façade of the curved TV.
- FIG. 2 is a schematic diagram of a refinement process of an embodiment of step S10 in FIG.
- Step S11 sending a test signal to the wireless earphone worn by the target object through the curved television, and receiving the feedback response signal and the visual angle information;
- Step S12 calculating a total time that the curved television sends the test signal to receive the response signal
- Step S13 calculating the distance according to the total time and the speed of the test signal and the response signal transmission;
- Step S14 calculating a deviation angle between the target object and the curved television according to the visual angle information and the television angle information of the curved television.
- FIG. 3 is a schematic diagram of a target object wearing a wireless earphone to watch a curved television; the position of the wireless headset can be used to indicate the location of the target object's eyes; and the curved television is sent to the wireless headset to send a test signal, which can be a human ear.
- the fixed frequency that cannot be perceived is X Hz ultrasonic wave, send a test signal every target time T (for example, 100ms or 500ms, etc.), and record the time when the test signal is transmitted is t0, because the ultrasonic wave will be attenuated during the transmission process, in order to ensure reliable test results Sex, the effective distance of the ultrasonic wave is specified as L, wherein the effective distance L ranges from L ⁇ [0, 10] (m).
- the speed of propagation is C m/ms; and the wireless headset needs to consume time T1 from receiving the test signal to successfully transmitting the response signal, the time T1 can be determined by testing, or can be determined by recording the time when the wireless headset receives the test signal and sends the response signal;
- the distance of the target object to the curved TV by other electronically available devices, for example, detecting the distance of the target object to the curved television through a wearable device such as a wristband.
- the visual direction of the target object is perpendicular to the line connecting the two earphone heads of the wireless earphone.
- the line perpendicular to the two earphone heads of the wireless earphone can be regarded as the visual direction of the target object; the electronic compass has the function of the compass, and the present invention
- the orientation direction of the electronic compass is expressed by the deviation angle from the true north direction, and the deviation angle between the curved television and the true north direction is recorded as n1°, and the average of the deviation angles of the two earphone heads from the true north direction is targeted.
- Step S20 adjusting the resolution of the curved television playing screen according to the relationship between the distance and the preset viewing distance
- FIG. 4 is a schematic diagram of the video stream and the curved TV playing screen.
- the audio corresponding to the special video stream has at least three audio tracks, and each audio track plays different sound effects, representing different sound effects at different distances from the main scene when shooting.
- FIG. 5 is a schematic diagram of a refinement process of an embodiment of step S20 in FIG.
- Step S21 determining a vertical resolution of the play picture according to the distance, a preset viewing distance, and a vertical resolution of the video code stream, and determining a horizontal resolution of the play picture according to a relationship between the horizontal resolution and the vertical resolution;
- step S22 the resolution of the curved television broadcast screen is adjusted according to the vertical resolution and the horizontal resolution of the playback screen.
- the preset viewing distance L2 may be preset in the air conditioner factory, or the preset viewing distance L2 may be set by the user through the television remote control device, for example The preset viewing distance L2 is set to 2 meters or 3 meters.
- Curved TV screen size (inches) Preset viewing distance L2 (m) 32 1.6 40 2.0 48 2.4 55 2.75 60 3.0 70 3.5
- the scaling of the horizontal direction and the vertical direction remains unchanged when the image is zoomed, and when the scaling is determined, the corresponding scaling may be determined according to the vertical resolution or the horizontal resolution.
- the horizontal resolution or vertical resolution, and the relationship between the target object and the surface television distance L1 and the preset viewing distance L2 is preset with the vertical resolution m1 of the playback picture and the vertical resolution m2 of the video stream. Correlation is associated with a preset relationship in an embodiment of the present invention.
- the vertical resolution m1 of the playback picture can be calculated by the formula of the preset association relationship, and the horizontal resolution m3 of the playback picture is determined according to the relationship between the horizontal resolution m3 and the vertical resolution m1; according to the vertical of the playback picture Resolution m1 and horizontal resolution m3 adjust the resolution of the surface TV playback screen; the closer the target object is to the curved TV, the larger the content displayed in the playback screen, the farther the target object is from the curved TV, the screen displayed in the playback screen The more it conforms to the laws of human body vision, the more the user feels.
- Step S30 adjusting an offset ratio of the playback screen according to the deviation angle
- the user's visual direction is offset, for example, offset to the left, it generally indicates that the user wants to pay more attention to the content on the left side of the visual image. At this time, if the details of the left content are displayed in more detail, the user's visual experience is improved; and the user's visual direction is improved.
- the occurrence of the offset can be determined by the deviation angle of the target object from the curved television, and the offset ratio of the playback screen is adjusted according to the deviation angle.
- FIG. 6 is a schematic diagram of a refinement process of an embodiment of step S30 in FIG.
- Step S31 determining an offset ratio of the playback screen according to the deviation angle, the horizontal resolution of the playback picture, and the horizontal resolution of the video code stream;
- Step S32 adjusting an offset rate of the playback screen according to the offset rate.
- the offset rate m4 of the playback picture is the distance between the horizontal midpoint of the curved TV playback picture and the horizontal midpoint of the actual picture of the code stream, expressed in units of pixels, and the offset rate m4 can be based on the deviation angle of the target object from the curved TV.
- the association relationship between the n°, the horizontal resolution m3 of the playback picture, and the horizontal resolution m5 of the video stream is calculated.
- the offset rate of the picture causes the user to shift the visual direction to see the details of the playback picture portion in more detail.
- Step S40 adjusting the audio track played according to the relationship between the distance and the preset sound effect distance.
- the audio corresponding to the special video stream has at least three audio tracks, each of which plays different sound effects, representing different sound effects at different distances from the main scene when shooting.
- Table 2 below shows three audio tracks. The relationship between audio and preset sound distance.
- Audio track name Preset sound distance (m) A1 [0,2] A2 [2,3] A3 [3,10]
- the audio track is decoded and transmitted to The wireless earphone performs playback; for example, when the distance L1 is within the preset sound effect distance of the audio track A2, the audio track A2 is decoded and transmitted to the wireless earphone for playing; further, when the target object is moved through the position To change the range of the best sound effect distance between the target object and the curved TV distance L1, the audio track is switched by the track volume gradient; for example, when the target object is from the preset sound effect distance of the audio track A1 When moving to the preset sound effect distance of the audio track A2, the volume of the audio track A1 played from the wireless earphone is gradually reduced until no, and the volume of the audio track A2 is gradually increased until the normal level, so that the user The sound that is heard is a natural transition, seamless switching, and enhances the sense of
- the resolution, the offset rate and/or the audio track of the curved television playing screen are automatically adjusted, and the information interaction between the curved television and the user is realized. Improve the sense of presence of the user.
- FIG. 7 is a schematic flowchart diagram of a second embodiment of a method for playing a curved television video according to the present invention. Based on the first embodiment of the method for playing a curved television video, the method further includes:
- step S50 when the distance between the detected distance and the previous detected distance is greater than or equal to the preset distance value, and/or the deviation angle of the current detection and the deviation angle of the previous detection is greater than or equal to the preset value.
- the angle value is used, the resolution and the offset rate of the current playback picture are kept unchanged;
- Step S60 when the change value of the distance detected by the current detection and the previous detection distance is less than the preset distance value, and the variation angle of the deviation angle of the current detection and the deviation angle of the previous detection is less than the preset angle value, according to the present
- the distance and deviation angle of the secondary detection adjust the resolution and offset rate of the playback screen.
- the distance between the target object and the curved television is /.
- the process of continuously changing the deviation angle is regarded as the process of the user adjusting the position and posture. After the adjustment is completed, the resolution and/or the offset rate of the playback screen is adjusted according to the distance and/or the deviation angle of the target object from the curved television.
- the resolution and the offset rate of the current playback screen are kept unchanged; when the distance detected this time is the distance from the previous detection.
- the preset distance value and the preset angle value may be preset in the factory when the curved TV is shipped, or the preset distance value and the preset angle value may be set by the user through the television remote control device, for example, the preset distance value is 0.1 meter. Or 0.2 meters, etc., the preset angle value is 5° Or 10° Wait.
- the time interval for adjusting the resolution and/or the offset rate of the curved television broadcast screen for example, although the distance and deviation of the target object from the curved television are detected every target time T (for example, 100 ms or 500 ms, etc.).
- Target time T2 (T2 > T, for example, 500ms or 1000ms, etc.) adjusts the resolution and offset rate of the curved TV playback screen according to the distance and deviation angle of the target object and the curved TV that were acquired recently; when the user wants to move, the surface TV playback screen
- the resolution, the offset rate, and/or the audio track, etc. are adjusted accordingly, so that the target time T2 can be shortened, and even the target time T2 is the same as the target time T, so that the resolution and the shift rate of the curved television playback screen are obtained.
- Synchronization follows the change of the user's position; while increasing the target time T2, the user can not use the short-term action of adjusting the resolution and the offset rate of the curved TV screen to enhance the stability of the curved TV screen. Sex.
- the invention does not use the process distance and deviation angle of the user to continuously change the resolution and the offset rate of the curved television playing screen, and enhances the stability of the curved television playing screen.
- the invention further provides a curved TV video playing device.
- FIG. 8 is a schematic diagram of functional modules of a preferred embodiment of a curved television video playback apparatus according to the present invention.
- the curved TV video playback device comprises: a detection module 10 and an adjustment module 20.
- the detecting module 10 is configured to detect a distance and a deviation angle between the target object and the curved television;
- the world that human beings perceive is three-dimensional.
- the picture and sound that humans perceive will change as the human position moves.
- the percentage of the object occupying the human eye is higher, and vice versa.
- the user's visual direction is shifted to the left, it generally indicates that the user wants to pay more attention to the content on the left side of the visual image.
- the details of the left content are displayed in more detail, the visual experience of the user is improved.
- the visual direction can be expressed by angle, specifically, the user's eyes The angle of deviation of the projected direction from the vertical line of the façade of the curved TV.
- FIG. 9 is a schematic diagram of a refinement function module of an embodiment of the detection module 10 of FIG.
- the detection module 10 includes a signal unit 11 and a calculation unit 12.
- the signal unit 11 is configured to send a test signal to the wireless headset worn by the target object through the curved television, and receive the feedback response signal and the visual angle information;
- the calculating unit 12 is configured to calculate a total time that the curved television sends the test signal to receive the response signal;
- FIG. 3 is a schematic diagram of a target object wearing a wireless earphone to watch a curved television; the position of the wireless headset can be used to indicate the location of the target object's eyes; and the curved television is sent to the wireless headset to send a test signal, which can be a human ear.
- the fixed frequency that cannot be perceived is X Hz ultrasonic wave, send a test signal every target time T (for example, 100ms or 500ms, etc.), and record the time when the test signal is transmitted is t0, because the ultrasonic wave will be attenuated during the transmission process, in order to ensure reliable test results Sex, the effective distance of the ultrasonic wave is specified as L, wherein the effective distance L ranges from L ⁇ [0, 10] (m).
- the speed of propagation is C m/ms; and the wireless headset needs to consume time T1 from receiving the test signal to successfully transmitting the response signal, the time T1 can be determined by testing, or can be determined by recording the time when the wireless headset receives the test signal and sends the response signal;
- the distance of the target object to the curved TV by other electronically available devices, for example, detecting the distance of the target object to the curved television through a wearable device such as a wristband.
- the visual direction of the target object is perpendicular to the line connecting the two earphone heads of the wireless earphone.
- the line perpendicular to the two earphone heads of the wireless earphone can be regarded as the visual direction of the target object; the electronic compass has the function of the compass, and the present invention
- the orientation direction of the electronic compass is expressed by the deviation angle from the true north direction, and the deviation angle between the curved television and the true north direction is recorded as n1°, and the average of the deviation angles of the two earphone heads from the true north direction is targeted.
- the adjusting module 20 is configured to adjust a resolution of the curved television playing screen according to the relationship between the distance and the preset viewing distance;
- FIG. 4 is a schematic diagram of the video stream and the curved TV playing screen.
- the audio corresponding to the special video stream has at least three audio tracks, and each audio track plays different sound effects, representing different sound effects at different distances from the main scene when shooting.
- FIG. 10 is a schematic diagram of a refinement function module of an embodiment of the adjustment module 20 of FIG.
- the adjustment module 20 includes a determining unit 21 and an adjusting unit 22.
- the determining unit 21 is configured to determine a vertical resolution of the play picture according to the distance, a preset viewing distance, and a vertical resolution of the video code stream, and determine a horizontal resolution of the play picture according to the relationship between the horizontal resolution and the vertical resolution. rate;
- the adjusting unit 22 is configured to adjust the resolution of the curved television playing screen according to the vertical resolution and the horizontal resolution of the playing screen.
- the preset viewing distance L2 may be preset in the air conditioner factory, or the preset viewing distance L2 may be set by the user through the television remote control device, for example The preset viewing distance L2 is set to 2 meters or 3 meters.
- Curved TV screen size (inches) Preset viewing distance L2 (m) 32 1.6 40 2.0 48 2.4 55 2.75 60 3.0 70 3.5
- the scaling of the horizontal direction and the vertical direction remains unchanged when the image is zoomed, and when the scaling is determined, the corresponding scaling may be determined according to the vertical resolution or the horizontal resolution.
- the horizontal resolution or vertical resolution, and the relationship between the target object and the surface television distance L1 and the preset viewing distance L2 is preset with the vertical resolution m1 of the playback picture and the vertical resolution m2 of the video stream. Correlation is associated with a preset relationship in an embodiment of the present invention.
- the vertical resolution m1 of the playback picture can be calculated by the formula of the preset association relationship, and the horizontal resolution m3 of the playback picture is determined according to the relationship between the horizontal resolution m3 and the vertical resolution m1; according to the vertical of the playback picture Resolution m1 and horizontal resolution m3 adjust the resolution of the surface TV playback screen; the closer the target object is to the curved TV, the larger the content displayed in the playback screen, the farther the target object is from the curved TV, the screen displayed in the playback screen The more it conforms to the laws of human body vision, the more the user feels.
- the adjustment module 20 is further configured to adjust an offset rate of the play screen according to the deviation angle;
- the user's visual direction is offset, for example, offset to the left, it generally indicates that the user wants to pay more attention to the content on the left side of the visual image. At this time, if the details of the left content are displayed in more detail, the user's visual experience is improved; and the user's visual direction is improved.
- the offset can be determined by the deviation angle of the target object from the curved TV, and the offset ratio of the playback screen is adjusted according to the deviation angle.
- the determining unit 21 is further configured to determine an offset rate of the play picture according to the deviation angle, the horizontal resolution of the play picture, and the horizontal resolution of the video code stream;
- the adjusting unit 22 is further configured to adjust an offset rate of the play picture according to the offset rate.
- the adjustment module 20 is further configured to adjust an audio track played according to the relationship between the distance and the preset sound effect distance.
- the resolution, the offset rate and/or the audio track of the curved television playing screen are automatically adjusted, and the information interaction between the curved television and the user is realized. Improve the sense of presence of the user.
- the adjusting module 20 is further configured to: when the distance between the detected distance and the previous detected distance is greater than or equal to the preset distance value, and/or the deviation angle of the current detection from the previous detection When the change value of the angle is greater than or equal to the preset angle value, the resolution and the offset rate of the current playback screen are kept unchanged;
- the distance and deviation angle adjust the resolution and offset rate of the playback screen.
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- Controls And Circuits For Display Device (AREA)
Abstract
Disclosed is a video playing method for a curved-surface television, comprising the steps of: detecting a distance and a deviation angle between a target object and the curved-surface television; according to a relationship between the distance and a pre-set watching distance, adjusting the resolution of a playing picture of the curved-surface television; adjusting a deviation ratio of the playing picture according to the deviation angle; and according to a relationship between the distance and a pre-set sound effect distance, adjusting the audio playing sound track. Also disclosed is a video playing apparatus for a curved-surface television. The present invention implements the automatic adjusting of, according to changes in the distance and/or deviation angle between a target object and a curved-surface television, the resolution and a deviation ratio of a playing picture of the curved-surface television, and/or the audio playing sound track, thus implementing information interaction between the curved-surface television and a user, and improving the sense of presence of a user when watching a movie.
Description
技术领域Technical field
本发明涉及曲面电视技术领域,尤其涉及一种曲面电视视频播放方法及装置。The present invention relates to the field of curved television technology, and in particular, to a curved television video playing method and apparatus.
背景技术Background technique
随着科学技术的不断发展,电子技术也得到了飞速的发展,电子产品的种类也越来越多,人们也享受到了科技发展带来的各种便利。其中曲面电视的面世引起了人们热切的关注。曲面电视因屏幕上弧度的变化,使观影者观看电视时离每一个像素点的距离相等,消除屏幕边缘的视觉扭曲,具有观看角度更广,人眼观看体验更舒服,画面逼真有临场感,能创造出最自然舒适的观感等诸多优点,使得曲面电视逐渐成为大多数家庭的主流选择。With the continuous development of science and technology, electronic technology has also developed rapidly, and there are more and more types of electronic products. People also enjoy the convenience brought by the development of science and technology. Among them, the appearance of curved TV has attracted people's eager attention. Due to the change of curvature on the screen, the curved TV makes the viewers have the same distance from each pixel when watching TV, eliminating the visual distortion of the edge of the screen, having a wider viewing angle, more comfortable viewing experience for the human eye, and realistic presence. It can create the most natural and comfortable look and many other advantages, making curved TV gradually become the mainstream choice of most families.
在现实生活中,人类所感知的世界是三维的。对于人类感知的画面和声音,会随着人类的位置移动而发生变化。虚拟现实设备往往根据此原理来模拟现实场景,使用户有身临其境的感受。但目前市场上的虚拟设备大多需要佩戴厚重的眼镜,并且设备成像点距离眼球很近,长时间观看会造成疲劳感,甚至会对身体造成不健康的影响。In real life, the world that human beings perceive is three-dimensional. The picture and sound that humans perceive will change as the human position moves. Virtual reality devices often simulate real-world scenarios based on this principle, giving users an immersive experience. However, most of the virtual devices on the market currently need to wear heavy glasses, and the imaging point of the device is very close to the eyeball. Long-term viewing will cause fatigue and even cause unhealthy effects on the body.
按照人体视觉规律,当一个物体距离人眼越近时,物体占据人眼视觉画面百分比越高,反之则越低;当用户眼视觉方向向左进行偏移时,一般表明用户更想关注视觉画面的左边内容,此时如果左边内容细节显示更详细,则会提高用户的视觉体验。但是,现有的曲面电视不能根据用户的位置和视觉角度调整视频播放画面的分辨率及角度等,在画面临场感方面,还有待进一步提升。According to the law of human body vision, when an object is closer to the human eye, the object has a higher percentage of the human eye visual image, and vice versa. When the user's eye visual direction shifts to the left, the user generally wants to pay attention to the visual image. On the left side of the content, if the details of the left side are displayed in more detail, the user's visual experience will be improved. However, the existing curved TV cannot adjust the resolution and angle of the video playback screen according to the user's position and visual angle, and needs to be further improved in terms of the field appearance of the painting.
上述内容仅用于辅助理解本发明的技术方案,并不代表承认上述内容是现有技术。The above content is only used to assist in understanding the technical solutions of the present invention, and does not constitute an admission that the above is prior art.
发明内容Summary of the invention
本发明的主要目的在于提供一种曲面电视视频播放方法及装置,旨在解决现有的曲面电视不能根据用户的位置和视觉角度调整视频播放画面的分辨率、角度及音频播放的音轨的问题。The main object of the present invention is to provide a method and a device for playing a curved TV video, which aims to solve the problem that the existing curved TV can not adjust the resolution, angle and audio track of the video playback screen according to the user's position and visual angle. .
为实现上述目的,本发明提供的一种曲面电视视频播放方法,包括以下步骤:To achieve the above objective, a curved television video playing method provided by the present invention includes the following steps:
检测目标对象与曲面电视的距离及偏差角度;Detecting the distance and deviation angle of the target object from the curved TV;
根据所述距离及预设观看距离的关系调整曲面电视播放画面的分辨率;及Adjusting the resolution of the curved television playing screen according to the relationship between the distance and the preset viewing distance; and
根据所述偏差角度调整播放画面的偏移率;及Adjusting an offset ratio of the playback screen according to the deviation angle; and
根据所述距离与预设音效距离的关系调整音频播放的音轨。The audio track is adjusted according to the relationship between the distance and the preset sound effect distance.
优选地,所述检测目标对象与曲面电视的距离及偏差角度的步骤包括:Preferably, the step of detecting a distance and a deviation angle of the target object from the curved television comprises:
通过曲面电视发送测试信号至目标对象佩戴的无线耳机,并接收反馈的应答信号及视觉角度信息;Sending a test signal to the wireless earphone worn by the target object through the curved television, and receiving the feedback response signal and the visual angle information;
计算曲面电视发送所述测试信号至接收到所述应答信号耗费的总时间;Calculating a total time that the surface television sends the test signal to receive the response signal;
根据所述总时间及测试信号与应答信号传输的速度计算所述距离;Calculating the distance according to the total time and the speed of the test signal and the response signal transmission;
根据所述视觉角度信息及曲面电视的电视角度信息计算目标对象与曲面电视的偏差角度。Calculating a deviation angle between the target object and the curved television according to the visual angle information and the television angle information of the curved television.
优选地,所述根据所述距离及预设观看距离的关系调整曲面电视播放画面的分辨率的步骤包括:Preferably, the step of adjusting the resolution of the curved television playing screen according to the relationship between the distance and the preset viewing distance comprises:
根据所述距离、预设观看距离及视频码流的垂直分辨率,确定播放画面的垂直分辨率,根据水平分辨率与垂直分辨率的关系确定播放画面的水平分辨率;Determining a vertical resolution of the playback picture according to the distance, a preset viewing distance, and a vertical resolution of the video code stream, and determining a horizontal resolution of the playback picture according to a relationship between the horizontal resolution and the vertical resolution;
根据播放画面的垂直分辨率及水平分辨率调整曲面电视播放画面的分辨率。Adjust the resolution of the surface TV playback screen according to the vertical resolution and horizontal resolution of the playback screen.
优选地,所述根据所述偏差角度调整播放画面的偏移率的步骤包括:Preferably, the step of adjusting the offset rate of the play picture according to the deviation angle comprises:
根据偏差角度、播放画面的水平分辨率及视频码流的水平分辨率,确定播放画面的偏移率;Determining the offset rate of the playback screen according to the deviation angle, the horizontal resolution of the playback picture, and the horizontal resolution of the video stream;
根据所述偏移率调整播放画面的偏移率。The offset rate of the playback picture is adjusted according to the offset rate.
优选地,所述根据所述距离及预设观看距离的关系调整曲面电视播放画面的分辨率的步骤包括:Preferably, the step of adjusting the resolution of the curved television playing screen according to the relationship between the distance and the preset viewing distance comprises:
使目标对象离曲面电视越近,播放画面中的内容显示的越大,目标对象离曲面电视越远,播放画面中显示的画面越多。The closer the target object is to the curved TV, the larger the content displayed on the playback screen, and the farther the target object is from the curved TV, the more images are displayed in the playback screen.
优选地,所述根据所述距离与预设音效距离的关系调整音频播放的音轨的步骤包括:Preferably, the step of adjusting the audio track played according to the relationship between the distance and the preset sound effect distance comprises:
当目标对象与曲面电视的距离所处的最佳音效距离区间发生变化时,采用音轨音量渐变的方式进行音频音轨切换。When the range of the best sound effect distance between the target object and the curved TV is changed, the audio track is switched by the track volume gradient.
优选地,所述方法还包括:Preferably, the method further includes:
当本次检测的距离与前一次检测的距离的变化值大于或等于预设距离值,和/或本次检测的偏差角度与前一次检测的偏差角度的变化值大于或等于预设角度值时,保持当前播放画面的分辨率及偏移率不变;When the distance between the detected distance and the previous detected distance is greater than or equal to the preset distance value, and/or the deviation angle of the current detection and the deviation angle of the previous detection is greater than or equal to the preset angle value, , keeping the resolution and offset rate of the current playback picture unchanged;
当本次检测的距离与前一次检测的距离的变化值小于预设距离值,且本次检测的偏差角度与前一次检测的偏差角度的变化值小于预设角度值时,根据本次检测的距离及偏差角度调整播放画面的分辨率及偏移率。When the distance between the detected distance and the previous detected distance is less than the preset distance value, and the deviation angle of the current detection and the deviation angle of the previous detection is less than the preset angle value, according to the current detection The distance and deviation angle adjust the resolution and offset rate of the playback screen.
优选地,调整曲面电视播放画面的分辨率和/或偏移率的时间间隔。Preferably, the time interval of the resolution and/or the offset rate of the curved television playback picture is adjusted.
此外,为实现上述目的,本发明还提供一种曲面电视视频播放装置,包括:In addition, in order to achieve the above object, the present invention further provides a curved TV video playing device, including:
检测模块,用于检测目标对象与曲面电视的距离及偏差角度;a detecting module, configured to detect a distance and a deviation angle of the target object from the curved television;
调整模块,用于根据所述距离及预设观看距离的关系调整曲面电视播放画面的分辨率;及An adjustment module, configured to adjust a resolution of the surface television broadcast screen according to the relationship between the distance and the preset viewing distance; and
根据所述偏差角度调整播放画面的偏移率;及Adjusting an offset ratio of the playback screen according to the deviation angle; and
根据所述距离与预设音效距离的关系调整音频播放的音轨。The audio track is adjusted according to the relationship between the distance and the preset sound effect distance.
优选地,所述检测模块包括:Preferably, the detecting module comprises:
信号单元,用于通过曲面电视发送测试信号至目标对象佩戴的无线耳机,并接收反馈的应答信号及视觉角度信息;a signal unit, configured to send a test signal to the wireless headset worn by the target object through the curved television, and receive the feedback response signal and the visual angle information;
计算单元,用于计算曲面电视发送所述测试信号至接收到所述应答信号耗费的总时间;及a calculating unit, configured to calculate a total time that the curved television sends the test signal to receive the response signal; and
根据所述总时间及测试信号与应答信号传输的速度计算所述距离;及Calculating the distance according to the total time and the speed of the test signal and the response signal transmission; and
根据所述视觉角度信息及曲面电视的电视角度信息计算目标对象与曲面电视的偏差角度。Calculating a deviation angle between the target object and the curved television according to the visual angle information and the television angle information of the curved television.
优选地,所述调整模块包括:Preferably, the adjustment module comprises:
确定单元,用于根据所述距离、预设观看距离及视频码流的垂直分辨率,确定播放画面的垂直分辨率,根据水平分辨率与垂直分辨率的关系确定播放画面的水平分辨率;a determining unit, configured to determine a vertical resolution of the play picture according to the distance, a preset viewing distance, and a vertical resolution of the video code stream, and determine a horizontal resolution of the play picture according to a relationship between the horizontal resolution and the vertical resolution;
调整单元,用于根据播放画面的垂直分辨率及水平分辨率调整曲面电视播放画面的分辨率。The adjustment unit is configured to adjust the resolution of the surface television playback screen according to the vertical resolution and the horizontal resolution of the playback screen.
优选地,所述确定单元,还用于根据偏差角度、播放画面的水平分辨率及视频码流的水平分辨率,确定播放画面的偏移率;Preferably, the determining unit is further configured to determine an offset rate of the play picture according to the deviation angle, the horizontal resolution of the play picture, and the horizontal resolution of the video code stream;
调整单元,还用于根据所述偏移率调整播放画面的偏移率。The adjusting unit is further configured to adjust an offset rate of the play picture according to the offset rate.
优选地,所述调整模块,还用于使目标对象离曲面电视越近,播放画面中的内容显示的越大,目标对象离曲面电视越远,播放画面中显示的画面越多。Preferably, the adjustment module is further configured to make the target object closer to the curved TV, and the content displayed in the play screen is larger, and the farther the target object is from the curved TV, the more images are displayed in the play screen.
优选地,所述调整模块,还用于当目标对象与曲面电视的距离所处的最佳音效距离区间发生变化时,采用音轨音量渐变的方式进行音频音轨切换。Preferably, the adjusting module is further configured to perform audio track switching by using a track volume gradation when a range of an optimal sound effect distance of the target object and the curved television is changed.
优选地,所述调整模块,还用于当本次检测的距离与前一次检测的距离的变化值大于或等于预设距离值,和/或本次检测的偏差角度与前一次检测的偏差角度的变化值大于或等于预设角度值时,保持当前播放画面的分辨率及偏移率不变;及Preferably, the adjusting module is further configured to: when the distance between the detected distance and the previous detected distance is greater than or equal to the preset distance value, and/or the deviation angle of the current detection and the deviation angle of the previous detection When the change value is greater than or equal to the preset angle value, the resolution and the offset rate of the current playback picture are kept unchanged;
当本次检测的距离与前一次检测的距离的变化值小于预设距离值,且本次检测的偏差角度与前一次检测的偏差角度的变化值小于预设角度值时,根据本次检测的距离及偏差角度调整播放画面的分辨率及偏移率。When the distance between the detected distance and the previous detected distance is less than the preset distance value, and the deviation angle of the current detection and the deviation angle of the previous detection is less than the preset angle value, according to the current detection The distance and deviation angle adjust the resolution and offset rate of the playback screen.
优选地,所述调整模块,还用于调整曲面电视播放画面的分辨率和/或偏移率的时间间隔。Preferably, the adjustment module is further configured to adjust a time interval of a resolution and/or an offset rate of the curved television playing screen.
本发明检测目标对象与曲面电视的距离及偏差角度;根据所述距离及预设观看距离的关系调整曲面电视播放画面的分辨率;根据所述偏差角度调整播放画面的偏移率;根据所述距离与预设音效距离的关系调整音频播放的音轨。当目标对象与曲面电视的距离和/或偏差角度发生变化时,自动调整曲面电视播放画面的分辨率、偏移率和/或音频播放的音轨,实现曲面电视与用户的信息交互,提高用户观影的临场感。The invention detects the distance and the deviation angle of the target object from the curved television; adjusts the resolution of the curved television playing screen according to the relationship between the distance and the preset viewing distance; and adjusts the offset rate of the playing screen according to the deviation angle; The distance from the preset sound effect adjusts the audio track. When the distance and/or the deviation angle of the target object and the curved TV are changed, the resolution, the offset rate and/or the audio track of the curved television playing screen are automatically adjusted, so that the information communication between the curved television and the user is realized, and the user is improved. The sense of presence of the movie.
附图说明DRAWINGS
图1为本发明曲面电视视频播放方法的第一实施例的流程示意图;1 is a schematic flow chart of a first embodiment of a method for playing a curved television video according to the present invention;
图2为图1中步骤S10一实施例的细化流程示意图;2 is a schematic diagram showing the refinement process of an embodiment of step S10 in FIG. 1;
图3为目标对象佩戴无线耳机观看曲面电视的示意图;3 is a schematic diagram of a target object wearing a wireless earphone to watch a curved television;
图4为视频码流与曲面电视播放画面的示意图;4 is a schematic diagram of a video stream and a curved television playing screen;
图5为图1中步骤S20一实施例的细化流程示意图;FIG. 5 is a schematic diagram showing the refinement process of an embodiment of step S20 in FIG. 1;
图6为图1中步骤S30一实施例的细化流程示意图;FIG. 6 is a schematic diagram showing the refinement process of an embodiment of step S30 in FIG. 1;
图7为本发明曲面电视视频播放方法的第二实施例的流程示意图;7 is a schematic flow chart of a second embodiment of a method for playing a curved television video according to the present invention;
图8为本发明曲面电视视频播放装置的较佳实施例的功能模块示意图;8 is a schematic diagram of functional modules of a preferred embodiment of a curved television video playback device of the present invention;
图9为图8中检测模块一实施例的细化功能模块示意图;9 is a schematic diagram of a refinement function module of an embodiment of the detection module of FIG. 8;
图10为图8中调整模块一实施例的细化功能模块示意图。FIG. 10 is a schematic diagram of a refinement function module of an embodiment of the adjustment module of FIG. 8. FIG.
本发明目的的实现、功能特点及优点将结合实施例,参照附图做进一步说明。The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.
具体实施方式detailed description
应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
本发明实施例的主要解决方案是:检测目标对象与曲面电视的距离及偏差角度;根据所述距离及预设观看距离的关系调整曲面电视播放画面的分辨率;根据所述偏差角度调整播放画面的偏移率;根据所述距离与预设音效距离的关系调整音频播放的音轨。当目标对象与曲面电视的距离和/或偏差角度发生变化时,自动调整曲面电视播放画面的分辨率、偏移率和/或音频播放的音轨,实现曲面电视与用户的信息交互,提高用户观影的临场感。The main solution of the embodiment of the present invention is: detecting a distance and a deviation angle between the target object and the curved television; adjusting the resolution of the curved television playing screen according to the relationship between the distance and the preset viewing distance; and adjusting the playing screen according to the deviation angle The offset rate of the audio is adjusted according to the relationship between the distance and the preset sound effect distance. When the distance and/or the deviation angle of the target object and the curved TV are changed, the resolution, the offset rate and/or the audio track of the curved television playing screen are automatically adjusted, so that the information communication between the curved television and the user is realized, and the user is improved. The sense of presence of the movie.
由于现有的曲面电视不能根据用户的位置和视觉角度调整视频播放画面的分辨率及角度。Since the existing curved TV cannot adjust the resolution and angle of the video playback screen according to the user's position and visual angle.
基于上述问题,本发明提供一种曲面电视视频播放方法。Based on the above problems, the present invention provides a curved television video playing method.
参照图1,图1为本发明曲面电视视频播放方法的第一实施例的流程示意图。1 is a schematic flow chart of a first embodiment of a method for playing a curved television video according to the present invention.
在一实施例中,所述曲面电视视频播放方法包括:In an embodiment, the curved TV video playing method includes:
步骤S10,检测目标对象与曲面电视的距离及偏差角度;Step S10, detecting a distance and a deviation angle between the target object and the curved television;
在现实生活中,人类所感知的世界是三维的。对于人类感知的画面和声音,会随着人类的位置移动而发生变化。按照人体视觉规律,当一个物体距离人眼越近时,物体占据人眼视觉画面百分比越高,反之则越低。当用户视觉方向向左进行偏移时,一般表明用户更想关注视觉画面左边的内容,此时如果左边内容的细节显示更详细,则会提高用户的视觉体验。基于此,为了提高用户的视觉体验而调整曲面电视播出的画面和声音,需要检测目标对象与曲面电视的距离及目标对象的视觉方向,视觉方向可以用角度表示,具体来说,就是用户目光投射的方向与曲面电视正立面垂直线的偏差角度。In real life, the world that human beings perceive is three-dimensional. The picture and sound that humans perceive will change as the human position moves. According to the law of human body vision, when an object is closer to the human eye, the percentage of the object occupying the human eye is higher, and vice versa. When the user's visual direction is shifted to the left, it generally indicates that the user wants to pay more attention to the content on the left side of the visual image. At this time, if the details of the left content are displayed in more detail, the visual experience of the user is improved. Based on this, in order to improve the user's visual experience and adjust the screen and sound of the curved TV broadcast, it is necessary to detect the distance between the target object and the curved TV and the visual direction of the target object. The visual direction can be expressed by angle, specifically, the user's eyes The angle of deviation of the projected direction from the vertical line of the façade of the curved TV.
参照图2,图2为图1中步骤S10一实施例的细化流程示意图。Referring to FIG. 2, FIG. 2 is a schematic diagram of a refinement process of an embodiment of step S10 in FIG.
步骤S11,通过曲面电视发送测试信号至目标对象佩戴的无线耳机,并接收反馈的应答信号及视觉角度信息;Step S11, sending a test signal to the wireless earphone worn by the target object through the curved television, and receiving the feedback response signal and the visual angle information;
步骤S12,计算曲面电视发送所述测试信号至接收到所述应答信号耗费的总时间;Step S12, calculating a total time that the curved television sends the test signal to receive the response signal;
步骤S13,根据所述总时间及测试信号与应答信号传输的速度计算所述距离;Step S13, calculating the distance according to the total time and the speed of the test signal and the response signal transmission;
步骤S14,根据所述视觉角度信息及曲面电视的电视角度信息计算目标对象与曲面电视的偏差角度。Step S14, calculating a deviation angle between the target object and the curved television according to the visual angle information and the television angle information of the curved television.
如图3所示,图3为目标对象佩戴无线耳机观看曲面电视的示意图;可以用无线耳机的位置表示目标对象眼睛所在的位置;控制曲面电视向无线耳机发送测试信号,该测试信号可以为人耳不能感知的固定频率为X
Hz的超声波,每间隔目标时间T(例如,为100ms或500ms等)发送一个测试信号,并且记录发射该测试信号的时间为t0,由于超声波在传递的过程中会衰减,为了保证测试结果的可靠性,规定超声波的有效距离为L,其中有效距离L的范围为L∈[0,10](米)。超声波在空气中传播的速度为V
m/ms(米/毫秒),则超声波在有效距离L内传输的最长时间T0 = 10/V
ms,为了防止信号的相互干扰,规定目标时间T大于最长时间T0;在无线耳机接收到测试信号时,即通过无线耳机向曲面电视发送应答信号,该应答信号可以为电磁波,电磁波在空气中传播的速度为C
m/ms;而无线耳机从接收到测试信号至成功发送应答信号还需要消耗时间T1,该时间T1可以通过测试确定,也可以通过记录无线耳机接收到测试信号及发送应答信号的时间确定;记录曲面电视接收到应答信号的时间为t1;根据速度、时间与距离的关系t1
- t0 = L1/V + T1 + L1/C,其中,L1为无线耳机与曲面电视的距离,则可以计算出距离L1 = {c * v * [(t1-t0) -
T1]} / (c +
v)。当然也可以通过其它可电子设备检测目标对象至曲面电视的距离,例如,通过手环等可穿戴设备检测目标对象至曲面电视的距离。目标对象的视觉方向与无线耳机两个耳机头的连线垂直,因此,可以将与无线耳机两个耳机头连线垂直的线作为目标对象的视觉方向;电子罗盘具有指南针的功能,本发明一实施例通过电子罗盘定位方向,用与正北方向的偏差角度来表示,将曲面电视与正北方向的偏差角度记为n1°,将两个耳机头与正北方向的偏差角度的平均作为目标对象的视觉方向与正北方向的偏差角度,并记录该偏差角度为n2°,则目标对象的视觉方向与曲面电视的偏差角度n°=n2°-n1°。As shown in FIG. 3, FIG. 3 is a schematic diagram of a target object wearing a wireless earphone to watch a curved television; the position of the wireless headset can be used to indicate the location of the target object's eyes; and the curved television is sent to the wireless headset to send a test signal, which can be a human ear. The fixed frequency that cannot be perceived is X
Hz ultrasonic wave, send a test signal every target time T (for example, 100ms or 500ms, etc.), and record the time when the test signal is transmitted is t0, because the ultrasonic wave will be attenuated during the transmission process, in order to ensure reliable test results Sex, the effective distance of the ultrasonic wave is specified as L, wherein the effective distance L ranges from L ∈ [0, 10] (m). Ultrasonic waves travel in the air at a speed of V
m/ms (m/m), the maximum time that the ultrasonic wave is transmitted within the effective distance L T0 = 10/V
Ms, in order to prevent mutual interference of signals, the target time T is specified to be greater than the maximum time T0; when the wireless earphone receives the test signal, the response signal is sent to the curved television through the wireless earphone, and the response signal may be electromagnetic waves, and the electromagnetic waves are in the air. The speed of propagation is C
m/ms; and the wireless headset needs to consume time T1 from receiving the test signal to successfully transmitting the response signal, the time T1 can be determined by testing, or can be determined by recording the time when the wireless headset receives the test signal and sends the response signal; The time when the curved TV receives the response signal is t1; according to the relationship between speed, time and distance t1
- t0 = L1/V + T1 + L1/C, where L1 is the distance between the wireless headset and the curved TV, then the distance L1 = {c * v * [(t1-t0) -
T1]} / (c +
v). It is of course also possible to detect the distance of the target object to the curved TV by other electronically available devices, for example, detecting the distance of the target object to the curved television through a wearable device such as a wristband. The visual direction of the target object is perpendicular to the line connecting the two earphone heads of the wireless earphone. Therefore, the line perpendicular to the two earphone heads of the wireless earphone can be regarded as the visual direction of the target object; the electronic compass has the function of the compass, and the present invention In the embodiment, the orientation direction of the electronic compass is expressed by the deviation angle from the true north direction, and the deviation angle between the curved television and the true north direction is recorded as n1°, and the average of the deviation angles of the two earphone heads from the true north direction is targeted. The deviation angle between the visual direction of the object and the true north direction, and recording the deviation angle as n2°, the deviation angle of the visual direction of the target object from the curved television is n°=n2°-n1°.
步骤S20,根据所述距离及预设观看距离的关系调整曲面电视播放画面的分辨率;Step S20, adjusting the resolution of the curved television playing screen according to the relationship between the distance and the preset viewing distance;
为了能提高用户观看视频时的临场感,通常在拍摄时即以特殊视频码流的形式进行录制,使特殊视频码流拥有较高分辨率,垂直分辨率达到电视屏幕分辨率的两倍以上,水平分辨率达到电视屏幕分辨率的四倍以上,如图4所示,图4为视频码流与曲面电视播放画面的示意图。特殊视频码流对应的音频拥有至少三个音频音轨,每个音频音轨播放的音效不同,代表拍摄时距离主场景不同距离的不同音效。简单地说,对于特殊视频码流的拍摄,需要一个或多个超高分辨率的摄像机,广角拍摄一个场景,在录制特殊视频码流音频时,根据实际场景的不同位置放置多个录音设备,或采用电脑模拟出距离焦点某个位置的最真实音效作为不同预设观看距离的音频音轨。根据所述距离及预设观看距离的关系调整曲面电视播放画面的分辨率,使得目标对象离曲面电视越近,播放画面中的内容显示的越大,目标对象离曲面电视越远,播放画面中显示的画面越多,符合人体视觉规律,提高用户的临场感。当然,如果播放的是普通视频码流,也可能通过处理,将普通视频码流根据预设观看距离设置播放画面的比例,将普通视频码流对应的音频音轨根据预设观看距离模拟出多个播放音轨。In order to improve the user's sense of presence when watching video, it is usually recorded in the form of a special video stream during shooting, so that the special video stream has a higher resolution, and the vertical resolution is more than twice the resolution of the TV screen. The horizontal resolution reaches more than four times the resolution of the TV screen, as shown in FIG. 4, and FIG. 4 is a schematic diagram of the video stream and the curved TV playing screen. The audio corresponding to the special video stream has at least three audio tracks, and each audio track plays different sound effects, representing different sound effects at different distances from the main scene when shooting. Simply put, for the shooting of special video streams, one or more ultra-high resolution cameras are needed, and a scene is shot at a wide angle. When recording special video stream audio, multiple recording devices are placed according to different positions of the actual scene. Or use a computer to simulate the most realistic sound from a certain position of the focus as the audio track of different preset viewing distance. Adjusting the resolution of the surface television playback screen according to the relationship between the distance and the preset viewing distance, so that the closer the target object is to the curved television, the larger the content of the playback screen is displayed, and the farther the target object is from the curved television, in the playback screen. The more pictures displayed, the rules of human body vision, and the user's sense of presence. Of course, if the normal video stream is played, it may also be processed to set the proportion of the normal video stream according to the preset viewing distance, and the audio track corresponding to the normal video stream is simulated according to the preset viewing distance. Play audio tracks.
参照图5,图5为图1中步骤S20一实施例的细化流程示意图。Referring to FIG. 5, FIG. 5 is a schematic diagram of a refinement process of an embodiment of step S20 in FIG.
步骤S21,根据所述距离、预设观看距离及视频码流的垂直分辨率,确定播放画面的垂直分辨率,根据水平分辨率与垂直分辨率的关系确定播放画面的水平分辨率;Step S21, determining a vertical resolution of the play picture according to the distance, a preset viewing distance, and a vertical resolution of the video code stream, and determining a horizontal resolution of the play picture according to a relationship between the horizontal resolution and the vertical resolution;
步骤S22,根据播放画面的垂直分辨率及水平分辨率调整曲面电视播放画面的分辨率。In step S22, the resolution of the curved television broadcast screen is adjusted according to the vertical resolution and the horizontal resolution of the playback screen.
曲面电视播放视频码流时,并不是将视频码流画面的分辨率全部显示出来,而是通过放大缩小和改变比例模式的方式,呈现视频码流画面中的一部分。假设默认c英寸的电视屏幕的预设观看距离(相当于最佳观看距离)为L2米,令L2=
c /
20,常用曲面电视屏幕尺寸对应的预设观看距离L2如下表1所示,可以在空调器出厂时预先设置预设观看距离L2,也可以是用户通过电视遥控设备设置预设观看距离L2,例如,预设观看距离L2设为2米或3米等。When the surface TV plays the video stream, the resolution of the video stream picture is not displayed, but a part of the video stream picture is presented by zooming in and out and changing the scale mode. Assume that the default viewing distance (equivalent to the best viewing distance) of the default c-inch TV screen is L2 meters, let L2=
c /
20, the preset viewing distance L2 corresponding to the common curved TV screen size is as shown in Table 1 below, the preset viewing distance L2 may be preset in the air conditioner factory, or the preset viewing distance L2 may be set by the user through the television remote control device, for example The preset viewing distance L2 is set to 2 meters or 3 meters.
表1 曲面电视屏幕尺寸对应的预设观看距离L2Table 1 Preset viewing distance L2 corresponding to the surface of the curved TV screen
曲面电视屏幕尺寸(英寸)Curved TV screen size (inches) | 预设观看距离L2(米)Preset viewing distance L2 (m) |
3232 | 1.61.6 |
4040 | 2.02.0 |
4848 | 2.42.4 |
5555 | 2.752.75 |
6060 | 3.03.0 |
7070 | 3.53.5 |
为了保证播放画面中的人物等不变形,在进行画面缩放时,水平方向与垂直方向的缩放比例保持不变,则在确定缩放比例时,可以根据垂直分辨率或水平分辨率的缩放情况确定对应的水平分辨率或垂直分辨率,并通过将目标对象和曲面电视的距离L1与预设观看距离L2的比例关系与播放画面的垂直分辨率m1和视频码流的垂直分辨率m2预设的关联关系相关联,本发明一实施例预设的关联关系为
m1 / m2 =1 - (2 * L2 - L1) / (2 * L2),其中,当L1 > 2 * L2时,令L1 = 2 *
L2,由上述预设的关联关系的公式即可计算出播放画面的垂直分辨率m1,并根据水平分辨率m3与垂直分辨率m1的关系确定播放画面的水平分辨率m3;根据播放画面的垂直分辨率m1及水平分辨率m3调整曲面电视播放画面的分辨率;使得目标对象离曲面电视越近,播放画面中的内容显示的越大,目标对象离曲面电视越远,播放画面中显示的画面越多,符合人体视觉规律,提高用户的临场感。In order to ensure that the characters in the playback picture are not deformed, the scaling of the horizontal direction and the vertical direction remains unchanged when the image is zoomed, and when the scaling is determined, the corresponding scaling may be determined according to the vertical resolution or the horizontal resolution. The horizontal resolution or vertical resolution, and the relationship between the target object and the surface television distance L1 and the preset viewing distance L2 is preset with the vertical resolution m1 of the playback picture and the vertical resolution m2 of the video stream. Correlation is associated with a preset relationship in an embodiment of the present invention.
M1 / m2 =1 - (2 * L2 - L1) / (2 * L2), where L1 = 2 * when L1 > 2 * L2
L2, the vertical resolution m1 of the playback picture can be calculated by the formula of the preset association relationship, and the horizontal resolution m3 of the playback picture is determined according to the relationship between the horizontal resolution m3 and the vertical resolution m1; according to the vertical of the playback picture Resolution m1 and horizontal resolution m3 adjust the resolution of the surface TV playback screen; the closer the target object is to the curved TV, the larger the content displayed in the playback screen, the farther the target object is from the curved TV, the screen displayed in the playback screen The more it conforms to the laws of human body vision, the more the user feels.
步骤S30,根据所述偏差角度调整播放画面的偏移率;Step S30, adjusting an offset ratio of the playback screen according to the deviation angle;
当用户视觉方向发生偏移,例如向左进行偏移时,一般表明用户更想关注视觉画面左边的内容,此时如果左边内容细节显示更详细,则会提高用户的视觉体验;而用户视觉方向发生偏移的情况可以通过目标对象与曲面电视的偏差角度确定,则根据所述偏差角度调整播放画面的偏移率。When the user's visual direction is offset, for example, offset to the left, it generally indicates that the user wants to pay more attention to the content on the left side of the visual image. At this time, if the details of the left content are displayed in more detail, the user's visual experience is improved; and the user's visual direction is improved. The occurrence of the offset can be determined by the deviation angle of the target object from the curved television, and the offset ratio of the playback screen is adjusted according to the deviation angle.
参照图6,图6为图1中步骤S30一实施例的细化流程示意图。Referring to FIG. 6, FIG. 6 is a schematic diagram of a refinement process of an embodiment of step S30 in FIG.
步骤S31,根据偏差角度、播放画面的水平分辨率及视频码流的水平分辨率,确定播放画面的偏移率;Step S31, determining an offset ratio of the playback screen according to the deviation angle, the horizontal resolution of the playback picture, and the horizontal resolution of the video code stream;
步骤S32,根据所述偏移率调整播放画面的偏移率。Step S32, adjusting an offset rate of the playback screen according to the offset rate.
播放画面的偏移率m4即曲面电视播放画面的水平中点与码流实际画面的水平中点的距离,以像素点为单位表示,则偏移率m4可以根据目标对象与曲面电视的偏差角度n°、播放画面的水平分辨率m3及视频码流的水平分辨率m5预设的关联关系进行计算,本发明一实施例预设的关联关系为m4=
[(m5 - m3)/ 2 ] *(n° / 45°),其中,当n° > 45°时,令n° =
45°,由上述预设的关联关系的公式即可计算出播放画面的偏移率m4,其中,如果m4为正数,则表示曲面电视播放画面的水平中点为码流实际画面的水平中点偏右m4个像素点,如果m4为负数,则表示曲面电视播放画面的水平中点为码流实际画面的水平中点偏左m4个像素点;根据计算得出的偏移率m4调整播放画面的偏移率,使用户偏移视觉方向去看的播放画面部分的细节显示更详细。The offset rate m4 of the playback picture is the distance between the horizontal midpoint of the curved TV playback picture and the horizontal midpoint of the actual picture of the code stream, expressed in units of pixels, and the offset rate m4 can be based on the deviation angle of the target object from the curved TV. The association relationship between the n°, the horizontal resolution m3 of the playback picture, and the horizontal resolution m5 of the video stream is calculated. The preset association relationship of an embodiment of the present invention is m4=
[(m5 - m3) / 2 ] *(n° / 45°), where n° = 45°, let n° =
45°, the offset rate m4 of the play picture can be calculated by the formula of the above-mentioned preset relationship, wherein if m4 is a positive number, it means that the horizontal midpoint of the curved TV play picture is in the horizontal level of the actual picture of the code stream. Point m4 pixels to the right. If m4 is negative, it means that the horizontal midpoint of the surface TV playback picture is m4 pixels from the horizontal midpoint of the actual stream of the code stream; adjust the playback according to the calculated offset rate m4. The offset rate of the picture causes the user to shift the visual direction to see the details of the playback picture portion in more detail.
步骤S40,根据所述距离与预设音效距离的关系调整音频播放的音轨。Step S40, adjusting the audio track played according to the relationship between the distance and the preset sound effect distance.
特殊视频码流对应的音频拥有至少三个音频音轨,每个音频音轨播放的音效不同,代表拍摄时距离主场景不同距离的不同音效,下表2给出了具有三个音频音轨的音频与预设音效距离的关系。The audio corresponding to the special video stream has at least three audio tracks, each of which plays different sound effects, representing different sound effects at different distances from the main scene when shooting. Table 2 below shows three audio tracks. The relationship between audio and preset sound distance.
表2 具有三个音频音轨的音频与预设音效距离的关系Table 2 Relationship between audio with three audio tracks and preset sound distance
音频音轨名称Audio track name | 预设音效距离(米)Preset sound distance (m) |
A1A1 | [0,2][0,2] |
A2A2 | [2,3][2,3] |
A3A3 | [3,10][3,10] |
根据目标对象与曲面电视的距离L1与预设音效距离的关系调整音频播放的音轨,所述距离L1处于哪一个音频音轨的预设音效距离内,则将该音频音轨进行解码传输到无线耳机进行播放;例如,当所述距离L1处于音频音轨A2的预设音效距离内时,则将音频音轨A2进行解码传输到无线耳机进行播放;进一步地,当目标对象是通过移动位置,使目标对象与曲面电视的距离L1所处的最佳音效距离区间发生变化,则采用音轨音量渐变的方式进行音频音轨切换;例如,当目标对象从音频音轨A1的预设音效距离移动到音频音轨A2的预设音效距离内时,从无线耳机中播放的音频音轨A1的音量逐步调小直到无,同时将音频音轨A2的音量逐步调大,直到正常水平,使用户听到的声音是自然过渡、无缝切换的,增强临场感。Adjusting the audio playing track according to the relationship between the distance L1 of the target object and the curved TV and the preset sound effect distance, and the distance L1 is within the preset sound effect distance of the audio track, then the audio track is decoded and transmitted to The wireless earphone performs playback; for example, when the distance L1 is within the preset sound effect distance of the audio track A2, the audio track A2 is decoded and transmitted to the wireless earphone for playing; further, when the target object is moved through the position To change the range of the best sound effect distance between the target object and the curved TV distance L1, the audio track is switched by the track volume gradient; for example, when the target object is from the preset sound effect distance of the audio track A1 When moving to the preset sound effect distance of the audio track A2, the volume of the audio track A1 played from the wireless earphone is gradually reduced until no, and the volume of the audio track A2 is gradually increased until the normal level, so that the user The sound that is heard is a natural transition, seamless switching, and enhances the sense of presence.
本实施例根据目标对象与曲面电视的距离和/或偏差角度的变化,自动调整曲面电视播放画面的分辨率、偏移率和/或音频播放的音轨,实现曲面电视与用户的信息交互,提高用户观影的临场感。In this embodiment, according to the change of the distance and/or the deviation angle of the target object and the curved television, the resolution, the offset rate and/or the audio track of the curved television playing screen are automatically adjusted, and the information interaction between the curved television and the user is realized. Improve the sense of presence of the user.
参照图7,图7为本发明曲面电视视频播放方法的第二实施例的流程示意图。基于上述曲面电视视频播放方法的第一实施例,所述方法还包括:Referring to FIG. 7, FIG. 7 is a schematic flowchart diagram of a second embodiment of a method for playing a curved television video according to the present invention. Based on the first embodiment of the method for playing a curved television video, the method further includes:
步骤S50,当本次检测的距离与前一次检测的距离的变化值大于或等于预设距离值,和/或本次检测的偏差角度与前一次检测的偏差角度的变化值大于或等于预设角度值时,保持当前播放画面的分辨率及偏移率不变;In step S50, when the distance between the detected distance and the previous detected distance is greater than or equal to the preset distance value, and/or the deviation angle of the current detection and the deviation angle of the previous detection is greater than or equal to the preset value. When the angle value is used, the resolution and the offset rate of the current playback picture are kept unchanged;
步骤S60,当本次检测的距离与前一次检测的距离的变化值小于预设距离值,且本次检测的偏差角度与前一次检测的偏差角度的变化值小于预设角度值时,根据本次检测的距离及偏差角度调整播放画面的分辨率及偏移率。Step S60, when the change value of the distance detected by the current detection and the previous detection distance is less than the preset distance value, and the variation angle of the deviation angle of the current detection and the deviation angle of the previous detection is less than the preset angle value, according to the present The distance and deviation angle of the secondary detection adjust the resolution and offset rate of the playback screen.
由于用户观看曲面电视的过程中,可能存在短暂的扭头等行为,例如,看一下窗外的天气,从桌子上拿东西吃等情况,用户很快就回复原来的位置及姿势,虽然用户并不需要调整播放画面的分辨率及偏移率等,但是,上述行为如果使目标对象与曲面电视的距离和/或偏差角度发生变化,则很可能使分辨率和/或偏移率相应的发生变化;而实际上,用户即便确实是改变位置及姿势观看曲面电视,通常在改变位置及姿势后,也会保持该位置及姿势,因此,本发明一实施例,将目标对象与曲面电视的距离和/或偏差角度持续发生变化的过程看作是用户调整位置及姿势的过程,等调整结束后,再根据目标对象与曲面电视的距离和/或偏差角度调整播放画面的分辨率和/或偏移率;即当本次检测的距离与前一次检测的距离的变化值大于或等于预设距离值,和/或本次检测的偏差角度与前一次检测的偏差角度的变化值大于或等于预设角度值时,保持当前播放画面的分辨率及偏移率不变;当本次检测的距离与前一次检测的距离的变化值小于预设距离值,且本次检测的偏差角度与前一次检测的偏差角度的变化值小于预设角度值时,根据本次检测的距离及偏差角度调整播放画面的分辨率及偏移率;可以在曲面电视出厂时预先设置所述预设距离值及预设角度值,也可以是用户通过电视遥控设备设置预设距离值及预设角度值,例如,预设距离值为0.1米或0.2米等,预设角度值为5°
或10°
等。当然,也可以改变调整曲面电视播放画面的分辨率和/或偏移率的时间间隔,例如,虽然每间隔目标时间T(例如,为100ms或500ms等)检测目标对象与曲面电视的距离及偏差角度,但是,每间隔目标时间T2(T2
>
T,例如,为500ms或1000ms等)才根据最近一次获取的目标对象与曲面电视的距离及偏差角度调整曲面电视播放画面的分辨率及偏移率;当用户希望移动的过程中曲面电视播放画面的分辨率、偏移率和/或音频音轨等即进行相应的调整,则可以缩短目标时间T2,甚至使目标时间T2与目标时间T相同,使曲面电视播放画面的分辨率及偏移率同步跟随用户的位置变化而改变;而增大目标时间T2,则可以使用户不想用于调整曲面电视播放画面的分辨率及偏移率的短暂动作不被采用,以增强曲面电视播放画面的稳定性。Since the user is watching the curved TV, there may be a short turn and other behaviors, for example, looking at the weather outside the window, taking things from the table, etc., the user quickly returns to the original position and posture, although the user does not need Adjusting the resolution, offset rate, etc. of the playback screen, but if the above behavior changes the distance and/or the deviation angle of the target object from the curved TV, it is likely that the resolution and/or the offset ratio change accordingly; In fact, even if the user actually changes the position and posture to watch the curved TV, the position and posture are usually maintained after changing the position and posture. Therefore, according to an embodiment of the present invention, the distance between the target object and the curved television is /. The process of continuously changing the deviation angle is regarded as the process of the user adjusting the position and posture. After the adjustment is completed, the resolution and/or the offset rate of the playback screen is adjusted according to the distance and/or the deviation angle of the target object from the curved television. That is, when the distance between the detected distance and the previous detected distance is greater than or equal to the preset distance value, and/or this time When the measured deviation angle and the deviation value of the previous detection deviation angle are greater than or equal to the preset angle value, the resolution and the offset rate of the current playback screen are kept unchanged; when the distance detected this time is the distance from the previous detection When the change value is smaller than the preset distance value, and the deviation angle of the current detection and the deviation angle of the previous detection is smaller than the preset angle value, the resolution and offset of the playback screen are adjusted according to the distance and the deviation angle of the detection. Rate; the preset distance value and the preset angle value may be preset in the factory when the curved TV is shipped, or the preset distance value and the preset angle value may be set by the user through the television remote control device, for example, the preset distance value is 0.1 meter. Or 0.2 meters, etc., the preset angle value is 5°
Or 10°
Wait. Of course, it is also possible to change the time interval for adjusting the resolution and/or the offset rate of the curved television broadcast screen, for example, although the distance and deviation of the target object from the curved television are detected every target time T (for example, 100 ms or 500 ms, etc.). Angle, however, per interval target time T2 (T2
>
T, for example, 500ms or 1000ms, etc.) adjusts the resolution and offset rate of the curved TV playback screen according to the distance and deviation angle of the target object and the curved TV that were acquired recently; when the user wants to move, the surface TV playback screen The resolution, the offset rate, and/or the audio track, etc., are adjusted accordingly, so that the target time T2 can be shortened, and even the target time T2 is the same as the target time T, so that the resolution and the shift rate of the curved television playback screen are obtained. Synchronization follows the change of the user's position; while increasing the target time T2, the user can not use the short-term action of adjusting the resolution and the offset rate of the curved TV screen to enhance the stability of the curved TV screen. Sex.
本发明不将用户持续变化的过程中距离和偏差角度用于调整曲面电视播放画面的分辨率及偏移率,增强了曲面电视播放画面的稳定性。The invention does not use the process distance and deviation angle of the user to continuously change the resolution and the offset rate of the curved television playing screen, and enhances the stability of the curved television playing screen.
本发明进一步提供一种曲面电视视频播放装置。The invention further provides a curved TV video playing device.
参照图8,图8为本发明曲面电视视频播放装置的较佳实施例的功能模块示意图。Referring to FIG. 8, FIG. 8 is a schematic diagram of functional modules of a preferred embodiment of a curved television video playback apparatus according to the present invention.
在一实施例中,所述曲面电视视频播放装置包括:检测模块10及调整模块20。In an embodiment, the curved TV video playback device comprises: a detection module 10 and an adjustment module 20.
所述检测模块10,用于检测目标对象与曲面电视的距离及偏差角度;The detecting module 10 is configured to detect a distance and a deviation angle between the target object and the curved television;
在现实生活中,人类所感知的世界是三维的。对于人类感知的画面和声音,会随着人类的位置移动而发生变化。按照人体视觉规律,当一个物体距离人眼越近时,物体占据人眼视觉画面百分比越高,反之则越低。当用户视觉方向向左进行偏移时,一般表明用户更想关注视觉画面左边的内容,此时如果左边内容的细节显示更详细,则会提高用户的视觉体验。基于此,为了提高用户的视觉体验而调整曲面电视播出的画面和声音,需要检测目标对象与曲面电视的距离及目标对象的视觉方向,视觉方向可以用角度表示,具体来说,就是用户目光投射的方向与曲面电视正立面垂直线的偏差角度。In real life, the world that human beings perceive is three-dimensional. The picture and sound that humans perceive will change as the human position moves. According to the law of human body vision, when an object is closer to the human eye, the percentage of the object occupying the human eye is higher, and vice versa. When the user's visual direction is shifted to the left, it generally indicates that the user wants to pay more attention to the content on the left side of the visual image. At this time, if the details of the left content are displayed in more detail, the visual experience of the user is improved. Based on this, in order to improve the user's visual experience and adjust the screen and sound of the curved TV broadcast, it is necessary to detect the distance between the target object and the curved TV and the visual direction of the target object. The visual direction can be expressed by angle, specifically, the user's eyes The angle of deviation of the projected direction from the vertical line of the façade of the curved TV.
参照图9,图9为图8中检测模块10一实施例的细化功能模块示意图。所述检测模块10包括:信号单元11及计算单元12。Referring to FIG. 9, FIG. 9 is a schematic diagram of a refinement function module of an embodiment of the detection module 10 of FIG. The detection module 10 includes a signal unit 11 and a calculation unit 12.
所述信号单元11,用于通过曲面电视发送测试信号至目标对象佩戴的无线耳机,并接收反馈的应答信号及视觉角度信息;The signal unit 11 is configured to send a test signal to the wireless headset worn by the target object through the curved television, and receive the feedback response signal and the visual angle information;
所述计算单元12,用于计算曲面电视发送所述测试信号至接收到所述应答信号耗费的总时间;及The calculating unit 12 is configured to calculate a total time that the curved television sends the test signal to receive the response signal; and
根据所述总时间及测试信号与应答信号传输的速度计算所述距离;及Calculating the distance according to the total time and the speed of the test signal and the response signal transmission; and
根据所述视觉角度信息及曲面电视的电视角度信息计算目标对象与曲面电视的偏差角度。Calculating a deviation angle between the target object and the curved television according to the visual angle information and the television angle information of the curved television.
如图3所示,图3为目标对象佩戴无线耳机观看曲面电视的示意图;可以用无线耳机的位置表示目标对象眼睛所在的位置;控制曲面电视向无线耳机发送测试信号,该测试信号可以为人耳不能感知的固定频率为X
Hz的超声波,每间隔目标时间T(例如,为100ms或500ms等)发送一个测试信号,并且记录发射该测试信号的时间为t0,由于超声波在传递的过程中会衰减,为了保证测试结果的可靠性,规定超声波的有效距离为L,其中有效距离L的范围为L∈[0,10](米)。超声波在空气中传播的速度为V
m/ms(米/毫秒),则超声波在有效距离L内传输的最长时间T0 = 10/V
ms,为了防止信号的相互干扰,规定目标时间T大于最长时间T0;在无线耳机接收到测试信号时,即通过无线耳机向曲面电视发送应答信号,该应答信号可以为电磁波,电磁波在空气中传播的速度为C
m/ms;而无线耳机从接收到测试信号至成功发送应答信号还需要消耗时间T1,该时间T1可以通过测试确定,也可以通过记录无线耳机接收到测试信号及发送应答信号的时间确定;记录曲面电视接收到应答信号的时间为t1;根据速度、时间与距离的关系t1
- t0 = L1/V + T1 + L1/C,其中,L1为无线耳机与曲面电视的距离,则可以计算出距离L1 = {c * v * [(t1-t0) -
T1]} / (c +
v)。当然也可以通过其它可电子设备检测目标对象至曲面电视的距离,例如,通过手环等可穿戴设备检测目标对象至曲面电视的距离。目标对象的视觉方向与无线耳机两个耳机头的连线垂直,因此,可以将与无线耳机两个耳机头连线垂直的线作为目标对象的视觉方向;电子罗盘具有指南针的功能,本发明一实施例通过电子罗盘定位方向,用与正北方向的偏差角度来表示,将曲面电视与正北方向的偏差角度记为n1°,将两个耳机头与正北方向的偏差角度的平均作为目标对象的视觉方向与正北方向的偏差角度,并记录该偏差角度为n2°,则目标对象的视觉方向与曲面电视的偏差角度n°=n2°-n1°。As shown in FIG. 3, FIG. 3 is a schematic diagram of a target object wearing a wireless earphone to watch a curved television; the position of the wireless headset can be used to indicate the location of the target object's eyes; and the curved television is sent to the wireless headset to send a test signal, which can be a human ear. The fixed frequency that cannot be perceived is X
Hz ultrasonic wave, send a test signal every target time T (for example, 100ms or 500ms, etc.), and record the time when the test signal is transmitted is t0, because the ultrasonic wave will be attenuated during the transmission process, in order to ensure reliable test results Sex, the effective distance of the ultrasonic wave is specified as L, wherein the effective distance L ranges from L ∈ [0, 10] (m). Ultrasonic waves travel in the air at a speed of V
m/ms (m/m), the maximum time that the ultrasonic wave is transmitted within the effective distance L T0 = 10/V
Ms, in order to prevent mutual interference of signals, the target time T is specified to be greater than the maximum time T0; when the wireless earphone receives the test signal, the response signal is sent to the curved television through the wireless earphone, and the response signal may be electromagnetic waves, and the electromagnetic waves are in the air. The speed of propagation is C
m/ms; and the wireless headset needs to consume time T1 from receiving the test signal to successfully transmitting the response signal, the time T1 can be determined by testing, or can be determined by recording the time when the wireless headset receives the test signal and sends the response signal; The time when the curved TV receives the response signal is t1; according to the relationship between speed, time and distance t1
- t0 = L1/V + T1 + L1/C, where L1 is the distance between the wireless headset and the curved TV, then the distance L1 = {c * v * [(t1-t0) -
T1]} / (c +
v). It is of course also possible to detect the distance of the target object to the curved TV by other electronically available devices, for example, detecting the distance of the target object to the curved television through a wearable device such as a wristband. The visual direction of the target object is perpendicular to the line connecting the two earphone heads of the wireless earphone. Therefore, the line perpendicular to the two earphone heads of the wireless earphone can be regarded as the visual direction of the target object; the electronic compass has the function of the compass, and the present invention In the embodiment, the orientation direction of the electronic compass is expressed by the deviation angle from the true north direction, and the deviation angle between the curved television and the true north direction is recorded as n1°, and the average of the deviation angles of the two earphone heads from the true north direction is targeted. The deviation angle between the visual direction of the object and the true north direction, and recording the deviation angle as n2°, the deviation angle of the visual direction of the target object from the curved television is n°=n2°-n1°.
所述调整模块20,用于根据所述距离及预设观看距离的关系调整曲面电视播放画面的分辨率;The adjusting module 20 is configured to adjust a resolution of the curved television playing screen according to the relationship between the distance and the preset viewing distance;
为了能提高用户观看视频时的临场感,通常在拍摄时即以特殊视频码流的形式进行录制,使特殊视频码流拥有较高分辨率,垂直分辨率达到电视屏幕分辨率的两倍以上,水平分辨率达到电视屏幕分辨率的四倍以上,如图4所示,图4为视频码流与曲面电视播放画面的示意图。特殊视频码流对应的音频拥有至少三个音频音轨,每个音频音轨播放的音效不同,代表拍摄时距离主场景不同距离的不同音效。简单地说,对于特殊视频码流的拍摄,需要一个或多个超高分辨率的摄像机,广角拍摄一个场景,在录制特殊视频码流音频时,根据实际场景的不同位置放置多个录音设备,或采用电脑模拟出距离焦点某个位置的最真实音效作为不同预设观看距离的音频音轨。根据所述距离及预设观看距离的关系调整曲面电视播放画面的分辨率,使得目标对象离曲面电视越近,播放画面中的内容显示的越大,目标对象离曲面电视越远,播放画面中显示的画面越多,符合人体视觉规律,提高用户的临场感。当然,如果播放的是普通视频码流,也可能通过处理,将普通视频码流根据预设观看距离设置播放画面的比例,将普通视频码流对应的音频音轨根据预设观看距离模拟出多个播放音轨。In order to improve the user's sense of presence when watching video, it is usually recorded in the form of a special video stream during shooting, so that the special video stream has a higher resolution, and the vertical resolution is more than twice the resolution of the TV screen. The horizontal resolution reaches more than four times the resolution of the TV screen, as shown in FIG. 4, and FIG. 4 is a schematic diagram of the video stream and the curved TV playing screen. The audio corresponding to the special video stream has at least three audio tracks, and each audio track plays different sound effects, representing different sound effects at different distances from the main scene when shooting. Simply put, for the shooting of special video streams, one or more ultra-high resolution cameras are needed, and a scene is shot at a wide angle. When recording special video stream audio, multiple recording devices are placed according to different positions of the actual scene. Or use a computer to simulate the most realistic sound from a certain position of the focus as the audio track of different preset viewing distance. Adjusting the resolution of the surface television playback screen according to the relationship between the distance and the preset viewing distance, so that the closer the target object is to the curved television, the larger the content of the playback screen is displayed, and the farther the target object is from the curved television, in the playback screen. The more pictures displayed, the rules of human body vision, and the user's sense of presence. Of course, if the normal video stream is played, it may also be processed to set the proportion of the normal video stream according to the preset viewing distance, and the audio track corresponding to the normal video stream is simulated according to the preset viewing distance. Play audio tracks.
参照图10,图10为图8中调整模块20一实施例的细化功能模块示意图。所述调整模块20包括:确定单元21及调整单元22。Referring to FIG. 10, FIG. 10 is a schematic diagram of a refinement function module of an embodiment of the adjustment module 20 of FIG. The adjustment module 20 includes a determining unit 21 and an adjusting unit 22.
所述确定单元21,用于根据所述距离、预设观看距离及视频码流的垂直分辨率,确定播放画面的垂直分辨率,根据水平分辨率与垂直分辨率的关系确定播放画面的水平分辨率;The determining unit 21 is configured to determine a vertical resolution of the play picture according to the distance, a preset viewing distance, and a vertical resolution of the video code stream, and determine a horizontal resolution of the play picture according to the relationship between the horizontal resolution and the vertical resolution. rate;
所述调整单元22,用于根据播放画面的垂直分辨率及水平分辨率调整曲面电视播放画面的分辨率。The adjusting unit 22 is configured to adjust the resolution of the curved television playing screen according to the vertical resolution and the horizontal resolution of the playing screen.
曲面电视播放视频码流时,并不是将视频码流画面的分辨率全部显示出来,而是通过放大缩小和改变比例模式的方式,呈现视频码流画面中的一部分。假设默认c英寸的电视屏幕的预设观看距离(相当于最佳观看距离)为L2米,令L2=
c /
20,常用曲面电视屏幕尺寸对应的预设观看距离L2如下表1所示,可以在空调器出厂时预先设置预设观看距离L2,也可以是用户通过电视遥控设备设置预设观看距离L2,例如,预设观看距离L2设为2米或3米等。When the surface TV plays the video stream, the resolution of the video stream picture is not displayed, but a part of the video stream picture is presented by zooming in and out and changing the scale mode. Assume that the default viewing distance (equivalent to the best viewing distance) of the default c-inch TV screen is L2 meters, let L2=
c /
20, the preset viewing distance L2 corresponding to the common curved TV screen size is as shown in Table 1 below, the preset viewing distance L2 may be preset in the air conditioner factory, or the preset viewing distance L2 may be set by the user through the television remote control device, for example The preset viewing distance L2 is set to 2 meters or 3 meters.
表1 曲面电视屏幕尺寸对应的预设观看距离L2Table 1 Preset viewing distance L2 corresponding to the surface of the curved TV screen
曲面电视屏幕尺寸(英寸)Curved TV screen size (inches) | 预设观看距离L2(米)Preset viewing distance L2 (m) |
3232 | 1.61.6 |
4040 | 2.02.0 |
4848 | 2.42.4 |
5555 | 2.752.75 |
6060 | 3.03.0 |
7070 | 3.53.5 |
为了保证播放画面中的人物等不变形,在进行画面缩放时,水平方向与垂直方向的缩放比例保持不变,则在确定缩放比例时,可以根据垂直分辨率或水平分辨率的缩放情况确定对应的水平分辨率或垂直分辨率,并通过将目标对象和曲面电视的距离L1与预设观看距离L2的比例关系与播放画面的垂直分辨率m1和视频码流的垂直分辨率m2预设的关联关系相关联,本发明一实施例预设的关联关系为
m1 / m2 =1 - (2 * L2 - L1) / (2 * L2),其中,当L1 > 2 * L2时,令L1 = 2 *
L2,由上述预设的关联关系的公式即可计算出播放画面的垂直分辨率m1,并根据水平分辨率m3与垂直分辨率m1的关系确定播放画面的水平分辨率m3;根据播放画面的垂直分辨率m1及水平分辨率m3调整曲面电视播放画面的分辨率;使得目标对象离曲面电视越近,播放画面中的内容显示的越大,目标对象离曲面电视越远,播放画面中显示的画面越多,符合人体视觉规律,提高用户的临场感。In order to ensure that the characters in the playback picture are not deformed, the scaling of the horizontal direction and the vertical direction remains unchanged when the image is zoomed, and when the scaling is determined, the corresponding scaling may be determined according to the vertical resolution or the horizontal resolution. The horizontal resolution or vertical resolution, and the relationship between the target object and the surface television distance L1 and the preset viewing distance L2 is preset with the vertical resolution m1 of the playback picture and the vertical resolution m2 of the video stream. Correlation is associated with a preset relationship in an embodiment of the present invention.
M1 / m2 =1 - (2 * L2 - L1) / (2 * L2), where L1 = 2 * when L1 > 2 * L2
L2, the vertical resolution m1 of the playback picture can be calculated by the formula of the preset association relationship, and the horizontal resolution m3 of the playback picture is determined according to the relationship between the horizontal resolution m3 and the vertical resolution m1; according to the vertical of the playback picture Resolution m1 and horizontal resolution m3 adjust the resolution of the surface TV playback screen; the closer the target object is to the curved TV, the larger the content displayed in the playback screen, the farther the target object is from the curved TV, the screen displayed in the playback screen The more it conforms to the laws of human body vision, the more the user feels.
所述调整模块20,还用于根据所述偏差角度调整播放画面的偏移率;The adjustment module 20 is further configured to adjust an offset rate of the play screen according to the deviation angle;
当用户视觉方向发生偏移,例如向左进行偏移时,一般表明用户更想关注视觉画面左边的内容,此时如果左边内容细节显示更详细,则会提高用户的视觉体验;而用户视觉方向发生偏移的情况可以通过目标对象与曲面电视的偏差角度确定,则根据所述偏差角度调整播放画面的偏移率When the user's visual direction is offset, for example, offset to the left, it generally indicates that the user wants to pay more attention to the content on the left side of the visual image. At this time, if the details of the left content are displayed in more detail, the user's visual experience is improved; and the user's visual direction is improved. The offset can be determined by the deviation angle of the target object from the curved TV, and the offset ratio of the playback screen is adjusted according to the deviation angle.
进一步地,所述确定单元21,还用于根据偏差角度、播放画面的水平分辨率及视频码流的水平分辨率,确定播放画面的偏移率;Further, the determining unit 21 is further configured to determine an offset rate of the play picture according to the deviation angle, the horizontal resolution of the play picture, and the horizontal resolution of the video code stream;
调整单元22,还用于根据所述偏移率调整播放画面的偏移率。The adjusting unit 22 is further configured to adjust an offset rate of the play picture according to the offset rate.
所述调整模块20,还用于根据所述距离与预设音效距离的关系调整音频播放的音轨。The adjustment module 20 is further configured to adjust an audio track played according to the relationship between the distance and the preset sound effect distance.
本实施例根据目标对象与曲面电视的距离和/或偏差角度的变化,自动调整曲面电视播放画面的分辨率、偏移率和/或音频播放的音轨,实现曲面电视与用户的信息交互,提高用户观影的临场感。In this embodiment, according to the change of the distance and/or the deviation angle of the target object and the curved television, the resolution, the offset rate and/or the audio track of the curved television playing screen are automatically adjusted, and the information interaction between the curved television and the user is realized. Improve the sense of presence of the user.
进一步地,所述调整模块20,还用于当本次检测的距离与前一次检测的距离的变化值大于或等于预设距离值,和/或本次检测的偏差角度与前一次检测的偏差角度的变化值大于或等于预设角度值时,保持当前播放画面的分辨率及偏移率不变;及Further, the adjusting module 20 is further configured to: when the distance between the detected distance and the previous detected distance is greater than or equal to the preset distance value, and/or the deviation angle of the current detection from the previous detection When the change value of the angle is greater than or equal to the preset angle value, the resolution and the offset rate of the current playback screen are kept unchanged;
当本次检测的距离与前一次检测的距离的变化值小于预设距离值,且本次检测的偏差角度与前一次检测的偏差角度的变化值小于预设角度值时,根据本次检测的距离及偏差角度调整播放画面的分辨率及偏移率。When the distance between the detected distance and the previous detected distance is less than the preset distance value, and the deviation angle of the current detection and the deviation angle of the previous detection is less than the preset angle value, according to the current detection The distance and deviation angle adjust the resolution and offset rate of the playback screen.
以上仅为本发明的优选实施例,并非因此限制本发明的专利范围,凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换,或直接或间接运用在其他相关的技术领域,均同理包括在本发明的专利保护范围内。The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the present invention and the drawings are directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of the present invention.
Claims (16)
- 一种曲面电视视频播放方法,其特征在于,包括以下步骤: A curved television video playing method, comprising the following steps:检测目标对象与曲面电视的距离及偏差角度;Detecting the distance and deviation angle of the target object from the curved TV;根据所述距离及预设观看距离的关系调整曲面电视播放画面的分辨率;及Adjusting the resolution of the curved television playing screen according to the relationship between the distance and the preset viewing distance; and根据所述偏差角度调整播放画面的偏移率;及Adjusting an offset ratio of the playback screen according to the deviation angle; and根据所述距离与预设音效距离的关系调整音频播放的音轨。The audio track is adjusted according to the relationship between the distance and the preset sound effect distance.
- 如权利要求1所述的曲面电视视频播放方法,其特征在于,所述检测目标对象与曲面电视的距离及偏差角度的步骤包括:The method of playing a curved television video according to claim 1, wherein the step of detecting a distance and a deviation angle of the target object from the curved television comprises:通过曲面电视发送测试信号至目标对象佩戴的无线耳机,并接收反馈的应答信号及视觉角度信息;Sending a test signal to the wireless earphone worn by the target object through the curved television, and receiving the feedback response signal and the visual angle information;计算曲面电视发送所述测试信号至接收到所述应答信号耗费的总时间;Calculating a total time that the surface television sends the test signal to receive the response signal;根据所述总时间及测试信号与应答信号传输的速度计算所述距离;Calculating the distance according to the total time and the speed of the test signal and the response signal transmission;根据所述视觉角度信息及曲面电视的电视角度信息计算目标对象与曲面电视的偏差角度。Calculating a deviation angle between the target object and the curved television according to the visual angle information and the television angle information of the curved television.
- 如权利要求2所述的曲面电视视频播放方法,其特征在于,所述根据所述距离及预设观看距离的关系调整曲面电视播放画面的分辨率的步骤包括:The method of playing a curved television video according to claim 2, wherein the step of adjusting the resolution of the curved television playing screen according to the relationship between the distance and the preset viewing distance comprises:根据所述距离、预设观看距离及视频码流的垂直分辨率,确定播放画面的垂直分辨率,根据水平分辨率与垂直分辨率的关系确定播放画面的水平分辨率;Determining a vertical resolution of the playback picture according to the distance, a preset viewing distance, and a vertical resolution of the video code stream, and determining a horizontal resolution of the playback picture according to a relationship between the horizontal resolution and the vertical resolution;根据播放画面的垂直分辨率及水平分辨率调整曲面电视播放画面的分辨率。Adjust the resolution of the surface TV playback screen according to the vertical resolution and horizontal resolution of the playback screen.
- 如权利要求3所述的曲面电视视频播放方法,其特征在于,所述根据所述偏差角度调整播放画面的偏移率的步骤包括:The method of playing a curved television video according to claim 3, wherein the step of adjusting the offset rate of the playback screen according to the deviation angle comprises:根据偏差角度、播放画面的水平分辨率及视频码流的水平分辨率,确定播放画面的偏移率;Determining the offset rate of the playback screen according to the deviation angle, the horizontal resolution of the playback picture, and the horizontal resolution of the video stream;根据所述偏移率调整播放画面的偏移率。The offset rate of the playback picture is adjusted according to the offset rate.
- 如权利要求2所述的曲面电视视频播放方法,其特征在于,所述根据所述距离及预设观看距离的关系调整曲面电视播放画面的分辨率的步骤包括:The method of playing a curved television video according to claim 2, wherein the step of adjusting the resolution of the curved television playing screen according to the relationship between the distance and the preset viewing distance comprises:使目标对象离曲面电视越近,播放画面中的内容显示的越大,目标对象离曲面电视越远,播放画面中显示的画面越多。The closer the target object is to the curved TV, the larger the content displayed on the playback screen, and the farther the target object is from the curved TV, the more images are displayed in the playback screen.
- 如权利要求2所述的曲面电视视频播放方法,其特征在于,所述根据所述距离与预设音效距离的关系调整音频播放的音轨的步骤包括:The method of playing a curved television video according to claim 2, wherein the step of adjusting the audio track played according to the relationship between the distance and the preset sound effect distance comprises:当目标对象与曲面电视的距离所处的最佳音效距离区间发生变化时,采用音轨音量渐变的方式进行音频音轨切换。When the range of the best sound effect distance between the target object and the curved TV is changed, the audio track is switched by the track volume gradient.
- 如权利要求1所述的曲面电视视频播放方法,其特征在于,所述方法还包括:The method of playing a curved television video according to claim 1, wherein the method further comprises:当本次检测的距离与前一次检测的距离的变化值大于或等于预设距离值,和/或本次检测的偏差角度与前一次检测的偏差角度的变化值大于或等于预设角度值时,保持当前播放画面的分辨率及偏移率不变;When the distance between the detected distance and the previous detected distance is greater than or equal to the preset distance value, and/or the deviation angle of the current detection and the deviation angle of the previous detection is greater than or equal to the preset angle value, , keeping the resolution and offset rate of the current playback picture unchanged;当本次检测的距离与前一次检测的距离的变化值小于预设距离值,且本次检测的偏差角度与前一次检测的偏差角度的变化值小于预设角度值时,根据本次检测的距离及偏差角度调整播放画面的分辨率及偏移率。When the distance between the detected distance and the previous detected distance is less than the preset distance value, and the deviation angle of the current detection and the deviation angle of the previous detection is less than the preset angle value, according to the current detection The distance and deviation angle adjust the resolution and offset rate of the playback screen.
- 如权利要求1所述的曲面电视视频播放方法,其特征在于,所述方法还包括:The method of playing a curved television video according to claim 1, wherein the method further comprises:调整曲面电视播放画面的分辨率和/或偏移率的时间间隔。Adjust the time interval of the resolution and/or offset rate of the surface TV playback screen.
- 一种曲面电视视频播放装置,其特征在于,包括:A curved television video playing device, comprising:检测模块,用于检测目标对象与曲面电视的距离及偏差角度;a detecting module, configured to detect a distance and a deviation angle of the target object from the curved television;调整模块,用于根据所述距离及预设观看距离的关系调整曲面电视播放画面的分辨率、根据所述偏差角度调整播放画面的偏移率、及根据所述距离与预设音效距离的关系调整音频播放的音轨。The adjusting module is configured to adjust a resolution of the curved television playing screen according to the relationship between the distance and the preset viewing distance, adjust an offset rate of the playing screen according to the deviation angle, and a relationship between the distance and the preset sound effect distance according to the deviation angle Adjust the audio track for audio playback.
- 如权利要求9所述的曲面电视视频播放装置,其特征在于,所述检测模块包括:The curved television video playing device according to claim 9, wherein the detecting module comprises:信号单元,用于通过曲面电视发送测试信号至目标对象佩戴的无线耳机,并接收反馈的应答信号及视觉角度信息;a signal unit, configured to send a test signal to the wireless headset worn by the target object through the curved television, and receive the feedback response signal and the visual angle information;计算单元,用于计算曲面电视发送所述测试信号至接收到所述应答信号耗费的总时间、根据所述总时间及测试信号与应答信号传输的速度计算所述距离、及根据所述视觉角度信息及曲面电视的电视角度信息计算目标对象与曲面电视的偏差角度。a calculating unit, configured to calculate a total time that the curved television sends the test signal to receive the response signal, calculate the distance according to the total time and a speed of the test signal and the response signal transmission, and according to the visual angle The TV angle information of the information and curved TV calculates the deviation angle between the target object and the curved TV.
- 如权利要求10所述的曲面电视视频播放装置,其特征在于,所述调整模块包括:The curved television video playback device of claim 10, wherein the adjustment module comprises:确定单元,用于根据所述距离、预设观看距离及视频码流的垂直分辨率,确定播放画面的垂直分辨率,根据水平分辨率与垂直分辨率的关系确定播放画面的水平分辨率;a determining unit, configured to determine a vertical resolution of the play picture according to the distance, a preset viewing distance, and a vertical resolution of the video code stream, and determine a horizontal resolution of the play picture according to a relationship between the horizontal resolution and the vertical resolution;调整单元,用于根据播放画面的垂直分辨率及水平分辨率调整曲面电视播放画面的分辨率。The adjustment unit is configured to adjust the resolution of the surface television playback screen according to the vertical resolution and the horizontal resolution of the playback screen.
- 如权利要求11所述的曲面电视视频播放装置,其特征在于,所述确定单元,还用于根据偏差角度、播放画面的水平分辨率及视频码流的水平分辨率,确定播放画面的偏移率;The curved television video playback device of claim 11, wherein the determining unit is further configured to determine an offset of the playback screen according to the deviation angle, the horizontal resolution of the playback picture, and the horizontal resolution of the video stream. rate;调整单元,还用于根据所述偏移率调整播放画面的偏移率。The adjusting unit is further configured to adjust an offset rate of the play picture according to the offset rate.
- 如权利要求10所述的曲面电视视频播放装置,其特征在于,所述调整模块,还用于使目标对象离曲面电视越近,播放画面中的内容显示的越大,目标对象离曲面电视越远,播放画面中显示的画面越多。The curved television video playing device according to claim 10, wherein the adjusting module is further configured to make the target object closer to the curved television, and the content of the playing screen is displayed larger, and the target object is away from the curved television. Far, the more pictures are displayed on the playback screen.
- 如权利要求10所述的曲面电视视频播放装置,其特征在于,所述调整模块,还用于当目标对象与曲面电视的距离所处的最佳音效距离区间发生变化时,采用音轨音量渐变的方式进行音频音轨切换。The curved television video playing device of claim 10, wherein the adjusting module is further configured to use a track volume gradient when a range of the best sound effect distance between the target object and the curved television is changed. The way to audio track switching.
- 如权利要求9所述的曲面电视视频播放装置,其特征在于,所述调整模块,还用于当本次检测的距离与前一次检测的距离的变化值大于或等于预设距离值,和/或本次检测的偏差角度与前一次检测的偏差角度的变化值大于或等于预设角度值时,保持当前播放画面的分辨率及偏移率不变;及The curved television video playback device of claim 9, wherein the adjustment module is further configured to: when the distance detected by the current detection and the distance detected by the previous detection is greater than or equal to a preset distance value, and/ Or if the deviation angle of the current detection and the deviation angle of the previous detection are greater than or equal to the preset angle value, the resolution and the offset rate of the current playback screen are kept unchanged;当本次检测的距离与前一次检测的距离的变化值小于预设距离值,且本次检测的偏差角度与前一次检测的偏差角度的变化值小于预设角度值时,根据本次检测的距离及偏差角度调整播放画面的分辨率及偏移率。When the distance between the detected distance and the previous detected distance is less than the preset distance value, and the deviation angle of the current detection and the deviation angle of the previous detection is less than the preset angle value, according to the current detection The distance and deviation angle adjust the resolution and offset rate of the playback screen.
- 如权利要求9所述的曲面电视视频播放装置,其特征在于,所述调整模块,还用于调整曲面电视播放画面的分辨率和/或偏移率的时间间隔。The curved television video playing device according to claim 9, wherein the adjustment module is further configured to adjust a time interval of a resolution and/or an offset rate of the curved television playing screen.
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