CN117672162B - Display brightness control method, device, equipment and medium based on environmental factors - Google Patents
Display brightness control method, device, equipment and medium based on environmental factors Download PDFInfo
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Abstract
The invention discloses a display brightness control method, a device, equipment and a medium based on environmental factors, wherein the method comprises the following steps: acquiring a current area where a target large-sized display screen is positioned when playing video; when the current area is an intersection area, determining display characteristic information of a target large-sized display screen and road information of the current area; determining visual impact characteristic values of brightness of a target large-sized display screen for objects in different directions according to the display characteristic information and the road information; controlling the brightness of the target large display screen according to the visual impact characteristic value and the background environment factor of the current area; through the mode, when the intersection area is determined, the visual impact characteristic values of the brightness for objects in different directions are comprehensively determined according to the display characteristic information and the road information, and then the brightness of the large-scale display screen of the target is controlled by combining the background environment factors of the current area, so that the accuracy of controlling the brightness can be effectively improved, and the damage to the sight of a user is avoided.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a method, an apparatus, a device, and a medium for controlling display brightness based on environmental factors.
Background
In recent years, in order to improve the core competitiveness in the respective fields, products and parameters related to the products thereof are usually displayed in areas with large traffic, for example, a large display screen is installed at the top end of a landmark building at a main intersection, and data is displayed by using the large display screen, that is, when video is played, the brightness of the large display screen is usually set to be the highest, so that the maximum brightness attracts attention of passers-by, but the highest brightness causes impact force to the vision of passers-by or vehicle drivers, for example, the situation of dizziness or dazzling occurs, and in order to solve the above-mentioned defects, the brightness adjustment mode which is commonly used at present is that an administrator performs control based on sensory data fed back by passers-by, but the sensory data is related to eyestrain, and the feedback sensory data has errors, so that the accuracy of controlling brightness in the above-mentioned mode is low.
The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present invention and is not intended to represent an admission that the foregoing is prior art.
Disclosure of Invention
The invention mainly aims to provide a display brightness control method, device, equipment and medium based on environmental factors, and aims to solve the technical problem of low brightness control accuracy in the prior art.
In order to achieve the above object, the present invention provides a display brightness control method based on environmental factors, the display brightness control method based on environmental factors comprising the steps of:
determining the current area of a target large-scale display screen when playing video;
When the current area is an intersection area, acquiring display characteristic information of a target large-sized display screen and road information of the current area;
determining visual impact characteristic values of brightness of a target large-sized display screen on all azimuth objects according to the display characteristic information and the road information;
and controlling the brightness of the target large display screen according to the visual impact characteristic value and the background environment factor of the current area.
Optionally, when the current area is an intersection area, acquiring display characteristic information of the target large display screen and road information of the current area includes:
when the current area is an intersection area, detecting attribute information of display primary colors and luminous points of the target large display screen for playing video;
Determining the diameter of the luminous points and the distance between the luminous points according to the attribute information;
Counting the number of the display primary colors, and determining the type of a target large-sized display screen according to the number, the diameter of the luminous points and the distance;
acquiring display characteristic information according to the type of the target large-sized display screen;
The road image of the current area is identified through the target road identification model, and lane line information and position information of objects in the area are obtained;
And obtaining the road information of the current area according to the lane line information and the position information of the object in the area.
Optionally, the determining, according to the display characteristic information and the road information, a visual impact characteristic value of brightness of the target large display screen on each azimuth object includes:
Determining the propagation characteristic value of display light of a target large-sized display screen in a current medium according to the environmental information of the current area;
acquiring the display direction of a target large display screen for playing video;
determining a current propagation area of display light rays of the target large display screen according to the display direction and the current medium;
Determining object shielding information according to the display direction and the road information;
adjusting the current propagation area according to the object shielding information to obtain a target propagation area;
and determining the visual impact characteristic value of the brightness of the target large-sized display screen on the object in each azimuth according to the transmission characteristic value, the target transmission area and the display characteristic information.
Optionally, the determining the visual impact characteristic value of the brightness of the target large-scale display screen to each azimuth object according to the propagation characteristic value, the target propagation area and the display characteristic information includes:
According to the display characteristic information and the propagation characteristic value, the propagation characteristic value of the target large display screen in each dimension is obtained;
dividing the target propagation region into a direct propagation region and a biased propagation region;
determining the relative included angle between the sight of the moving object passing through the direct transmission area and the deflection transmission area and the display light of the target large-scale display screen;
Acquiring visual parameters of the moving object;
And determining the visual impact characteristic value of the brightness of the target large-sized display screen on the object in each azimuth according to the visual parameters, the relative included angle and the propagation characteristic value of the target large-sized display screen in each dimension.
Optionally, the controlling the brightness of the target large-sized display screen according to the visual impact characteristic value and the background environment factor of the current area includes:
Acquiring visual impact characteristic values of luminous objects on different objects in an outdoor environment;
determining blink frequencies and line-of-sight transition durations of different subjects at the visual impact characteristic values;
When the blink frequency is a preset blink frequency and the sight line transfer time is a preset time, determining each brightness value and each visual impact characteristic value;
Obtaining corresponding brightness control parameters according to the brightness values;
Determining a mapping relation to construct a target external key, and constructing a mapping relation between each visual impact characteristic value and the brightness control parameter according to the target external key;
and controlling the brightness of the target large-sized display screen according to the mapping relation, the visual impact characteristic value and the background environment factor of the current area.
Optionally, the controlling the brightness of the target large-sized display screen according to the mapping relation, the visual impact characteristic value and the background environment factor of the current area includes:
Training a target brightness control parameter prediction model according to the mapping relation;
inputting the visual impact characteristic value into a target brightness control parameter prediction model, and outputting a target brightness control parameter by the target brightness control parameter prediction model;
determining background environment brightness according to the background environment factors of the current area;
Determining a difference value between the background environment brightness and the brightness of the target large-sized display screen;
and controlling the brightness of the target large-sized display screen according to the target brightness control parameter and the difference value.
Optionally, after the controlling the brightness of the target large-sized display screen according to the visual impact characteristic value and the background environmental factor of the current area, the method further includes:
collecting the current display brightness of a target large display screen;
determining a current visual impact characteristic value of current display brightness on each azimuth object according to the display characteristic information and the road information;
And when the current visual impact characteristic value is a preset characteristic value, controlling the target large-sized display screen to continuously play the video with the current display brightness.
In addition, in order to achieve the above object, the present invention also provides a display brightness control device based on environmental factors, the display brightness control device based on environmental factors comprising:
the area determining module is used for determining the current area where the target large-sized display screen is positioned when playing the video;
the acquisition module is used for acquiring display characteristic information of the target large display screen and road information of the current area when the current area is an intersection area;
The characteristic value determining module is used for determining the visual impact characteristic value of the brightness of the target large-sized display screen on each azimuth object according to the display characteristic information and the road information;
And the control module is used for controlling the brightness of the target large display screen according to the visual impact characteristic value and the background environment factor of the current area.
In addition, in order to achieve the above object, the present invention also proposes an environmental factor-based display luminance control apparatus including: the display brightness control system comprises a memory, a processor, and an environmental factor-based display brightness control program stored on the memory and executable on the processor, the environmental factor-based display brightness control program configured to implement the environmental factor-based display brightness control method as described above.
In addition, in order to achieve the above object, the present invention also proposes a storage medium having stored thereon an environmental factor-based display luminance control program which, when executed by a processor, implements the environmental factor-based display luminance control method as described above.
According to the display brightness control method based on the environmental factors, the current area where the target large-sized display screen plays the video is determined; when the current area is an intersection area, acquiring display characteristic information of a target large-sized display screen and road information of the current area; determining visual impact characteristic values of brightness of a target large-sized display screen on all azimuth objects according to the display characteristic information and the road information; controlling the brightness of the target large display screen according to the visual impact characteristic value and the background environment factor of the current area; through the mode, when the intersection area is determined, the visual impact characteristic values of the brightness for objects in different directions are comprehensively determined according to the display characteristic information and the road information, and then the brightness of the large-scale display screen of the target is controlled by combining the background environment factors of the current area, so that the accuracy of controlling the brightness can be effectively improved, and the damage to the sight of a user is avoided.
Drawings
FIG. 1 is a schematic diagram of a display brightness control device based on environmental factors for a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a flowchart of a first embodiment of a display brightness control method based on environmental factors according to the present invention;
FIG. 3 is a schematic view showing the distribution of luminous points according to an embodiment of the method for controlling the display brightness based on environmental factors;
FIG. 4 is a flowchart of a second embodiment of a display brightness control method based on environmental factors according to the present invention;
fig. 5 is a schematic functional block diagram of a first embodiment of an environmental factor-based display brightness control device according to the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a display brightness control device based on environmental factors of a hardware operation environment according to an embodiment of the present invention.
As shown in fig. 1, the display brightness control apparatus based on the environmental factors may include: a processor 1001, such as a central processing unit (Central Processing Unit, CPU), a communication bus 1002, a user interface 1003, a network interface 1004, a memory 1005. Wherein the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may include a Display, an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may further include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a Wireless interface (e.g., a Wireless-Fidelity (Wi-Fi) interface). The Memory 1005 may be a high-speed random access Memory (Random Access Memory, RAM) or a stable nonvolatile Memory (NVM), such as a disk Memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above.
It will be appreciated by those skilled in the art that the structure shown in fig. 1 does not constitute a limitation of the display brightness control apparatus based on environmental factors, and may include more or less components than illustrated, or may combine certain components, or may be a different arrangement of components.
As shown in fig. 1, an operating system, a network communication module, a user interface module, and a display brightness control program based on environmental factors may be included in the memory 1005 as one storage medium.
In the display brightness control device based on environmental factors shown in fig. 1, the network interface 1004 is mainly used for data communication with a network integration platform workstation; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 in the environment factor based display brightness control apparatus of the present invention may be disposed in the environment factor based display brightness control apparatus, which invokes the environment factor based display brightness control program stored in the memory 1005 through the processor 1001 and executes the environment factor based display brightness control method provided by the embodiment of the present invention.
Based on the above hardware structure, the embodiment of the display brightness control method based on the environmental factors is provided.
Referring to fig. 2, fig. 2 is a flowchart illustrating a first embodiment of a method for controlling display brightness based on environmental factors according to the present invention.
In a first embodiment, the display brightness control method based on environmental factors includes the steps of:
Step S10, determining the current area of the target large-scale display screen when playing the video.
It should be noted that, the execution body of the present embodiment is a display brightness control device based on an environmental factor, and may be other devices that can implement the same or similar functions, such as a brightness controller, etc., which is not limited in this embodiment, and in this embodiment, the brightness controller is taken as an example for explanation.
It should be understood that the current area refers to an area where the target large-sized display screen plays video, and includes an intersection area, an off-business area, an in-business area, and the like, and may be obtained by detecting a geographical position of a building where the target large-sized display screen is disposed, and the area of the target large-sized display screen is at least 100 square meters.
And S20, when the current area is an intersection area, acquiring display characteristic information of a target large display screen and road information of the current area.
It is understood that the intersection region refers to a region where roads in different directions intersect, for example, a main road intersects a main road, a main road intersects a sub-branch, a sub-main road intersects a sub-main road, a sub-main road intersects a sub-branch, and after determining the current region, whether the current region is an intersection region is determined, if so, it indicates that the brightness of the target large display screen may impact the vision of a passer-by, and at this time, the brightness needs to be controlled, the display characteristic information refers to characteristic information displayed when the target large display screen plays a video, for example, the number of display primary colors, the divergence of a display screen, the display maximum brightness, and the like, and the road information refers to information of each road in the current region, for example, the road turning angle, the lane line information, and the position information of objects in the region, and the like.
Further, step S20 includes: when the current area is an intersection area, detecting attribute information of display primary colors and luminous points of the target large display screen for playing video; determining the diameter of the luminous points and the distance between the luminous points according to the attribute information; counting the number of the display primary colors, and determining the type of a target large-sized display screen according to the number, the diameter of the luminous points and the distance; acquiring display characteristic information according to the type of the target large-sized display screen; the road image of the current area is identified through the target road identification model, and lane line information and position information of objects in the area are obtained; and obtaining the road information of the current area according to the lane line information and the position information of the object in the area.
It should be understood that the attribute information refers to information about the attribute of the light emitting point itself, which includes, but is not limited to, the size, shape, etc. of the light emitting point, and indicates that the target large-sized display screen displays a full-color image, that is, one thousand or more colors, when the number of display primary colors is three, and indicates that the target large-sized display screen can display 65536 colors when the number of display primary colors is two, and indicates that the target large-sized display screen displays only a single color, and further, the diameter and the interval of the light emitting point are calculated by boundary points, for example, referring to fig. 3, which is a light emitting point distribution diagram, specifically: taking three light emitting points as an example, the light emitting points are respectively a light emitting point A, a light emitting point B and a light emitting point C, wherein the light emitting point B is positioned between the light emitting point A and the light emitting point C, the left boundary coordinate of the light emitting point A is (x la,yla), the right boundary coordinate of the light emitting point A is (x ra,yra), the left boundary coordinate of the light emitting point B is (x lb,ylb), the right boundary coordinate of the light emitting point B is (x rb,yrb), the left boundary coordinate of the light emitting point C is (x lc,ylc), the right boundary coordinate of the light emitting point C is (x ra,yra), and the specific mode for calculating the diameter and the distance of the light emitting points is as follows:
。
Wherein d A represents the diameter of the light-emitting point a, d B represents the diameter of the light-emitting point B, d C represents the diameter of the light-emitting point C, J AB represents the distance between the light-emitting point a and the light-emitting point B, J BC represents the distance between the light-emitting point B and the light-emitting point C, and J AC represents the distance between the light-emitting point a and the light-emitting point C.
It is understood that after the diameter and the distance of the light emitting points are obtained, the type of the target large display screen is determined in combination with the number of the display primary colors, for example, the type of the target large display screen is a curtain wall screen, and then the display characteristic information is acquired based on the type of the target large display screen.
It should be understood that the lane line information refers to the relevant information of the lane line in the current area, the lane line information includes, but is not limited to, the length, the width, the extension angle, etc. of the lane line, the object in the area may be a building, a sign, etc., the target road recognition model refers to a recognition model for recognizing the road and the object position information in the area, and since the training set used for training the target road recognition model has a large variety of data, the model training can be performed by adopting an algorithm combining the FCM, the EO algorithm and the SVM algorithm.
And step S30, determining the visual impact characteristic value of the brightness of the target large-sized display screen on each azimuth object according to the display characteristic information and the road information.
It should be understood that the visual impact characteristic value characterizes the visual impact degree of the brightness of the target large display screen on each azimuth object, and the larger the visual impact characteristic value is, the higher the visual impact degree is, the each azimuth object can be the same object moving in different directions, or can be a plurality of objects which are stationary and located in different azimuth.
And S40, controlling the brightness of the target large-sized display screen according to the visual impact characteristic value and the background environment factor of the current area.
It is understood that the background environmental factor refers to an environmental factor of a background of a current area where the target large-sized display screen plays video, where the background environmental factor includes, but is not limited to, a brightness of a illuminable object in the background environment, a purpose of a building in the background environment, and the like, for example, the brightness of the controlled target large-sized display screen is not lower than the brightness of the illuminable object in the background environment, and the purpose of the building in the background environment is a residential area, and the brightness of the controlled target large-sized display screen is not higher than the dazzling brightness.
Further, step S40 includes: acquiring visual impact characteristic values of luminous objects on different objects in an outdoor environment; determining blink frequencies and line-of-sight transition durations of different subjects at the visual impact characteristic values; when the blink frequency is a preset blink frequency and the sight line transfer time is a preset time, determining each brightness value and each visual impact characteristic value; obtaining corresponding brightness control parameters according to the brightness values; determining a mapping relation to construct a target external key, and constructing a mapping relation between each visual impact characteristic value and the brightness control parameter according to the target external key; and controlling the brightness of the target large-sized display screen according to the mapping relation, the visual impact characteristic value and the background environment factor of the current area.
It should be understood that, in this embodiment, from the blink frequency and the line of sight shift duration as the core parameters for calculating the visual impact feature values, it is indicated by a large amount of data that, in a normal case, if the blink frequency of a person is too high or the line of sight shift duration is too fast, it indicates that there is a stimulus in the line of sight, after determining the visual impact feature value list formed by the visual impact feature values and the brightness control parameter list formed by the brightness control parameters, a target external key between the two lists is constructed, that is, a mapping relationship between the visual impact feature values and the brightness control parameters is constructed by the target external key, and then the brightness of the target large-sized display screen is controlled in combination with the background environmental factor of the current area.
Further, the controlling the brightness of the target large-sized display screen according to the mapping relation, the visual impact characteristic value and the background environment factor of the current area includes: training a target brightness control parameter prediction model according to the mapping relation; inputting the visual impact characteristic value into a target brightness control parameter prediction model, and outputting a target brightness control parameter by the target brightness control parameter prediction model; determining background environment brightness according to the background environment factors of the current area; determining a difference value between the background environment brightness and the brightness of the target large-sized display screen; and controlling the brightness of the target large-sized display screen according to the target brightness control parameter and the difference value.
It can be understood that, in order to effectively improve and obtain the target brightness control parameter corresponding to the visual impact characteristic value, after the mapping relation between each visual impact characteristic value and the brightness control parameter is constructed, a fused ICP algorithm is utilized to improve a depth learning algorithm of a cascade MSWI algorithm to train a target brightness control parameter prediction model, then the target brightness control parameter prediction model is utilized to predict and output the target brightness control parameter, in order to effectively improve the accuracy of brightness control, after the target brightness control parameter is obtained, the background environment factor of the current area is combined to perform brightness control, namely, the difference value between the background environment brightness and the brightness of the target large display screen is determined, and the difference value can be represented by a ratio, specifically:
。
Wherein, C represents the difference value between the background ambient brightness and the brightness of the target large-sized display screen, L 1 represents the background ambient brightness, and L 2 represents the brightness of the target large-sized display screen.
Further, after step S40, the method further includes: collecting the current display brightness of a target large display screen; determining a current visual impact characteristic value of current display brightness on each azimuth object according to the display characteristic information and the road information; and when the current visual impact characteristic value is a preset characteristic value, controlling the target large-sized display screen to continuously play the video with the current display brightness.
It should be understood that the current display brightness refers to the brightness of the controlled target large-sized display screen, then the current visual impact characteristic value of the current display brightness on each azimuth object is determined in the same manner by adopting the same parameter, when the current visual impact characteristic value is determined to be the preset characteristic value, the current display brightness is indicated to be the most suitable, the visual impact can be highlighted and not caused in the background environment, and at the moment, the controlled target large-sized display screen continues to play the video with the current display brightness.
The embodiment determines the current area where the target large-scale display screen is positioned when playing the video; when the current area is an intersection area, acquiring display characteristic information of a target large-sized display screen and road information of the current area; determining visual impact characteristic values of brightness of a target large-sized display screen on all azimuth objects according to the display characteristic information and the road information; controlling the brightness of the target large display screen according to the visual impact characteristic value and the background environment factor of the current area; through the mode, when the intersection area is determined, the visual impact characteristic values of the brightness for objects in different directions are comprehensively determined according to the display characteristic information and the road information, and then the brightness of the large-scale display screen of the target is controlled by combining the background environment factors of the current area, so that the accuracy of controlling the brightness can be effectively improved, and the damage to the sight of a user is avoided.
In an embodiment, as shown in fig. 4, a second embodiment of the display brightness control method based on environmental factors according to the present invention is proposed based on the first embodiment, and the step S30 includes:
Step S301, determining a propagation characteristic value of display light of the target large-sized display screen in the current medium according to the environmental information of the current area.
It should be understood that the propagation characteristic value characterizes the penetrability of the display light ray in the current medium, and that the larger the propagation characteristic value is, the stronger the penetrability is, for example, when the environmental information of the current area is in haze weather, the current medium is particulate matter+air, and when the environmental information of the current area is in rainy weather, the current medium is water+air.
Step S302, the display direction of the target large display screen for playing the video is obtained.
It can be understood that the display direction refers to the direction in which the target large display screen plays the video, and the display direction may be the front door direction of the building.
And step S303, determining the current propagation area of the display light of the target large-scale display screen according to the display direction and the current medium.
It should be understood that, because the current medium in the environment of the current area refracts the display light, so that the propagation path of the display light deviates from the path corresponding to the display direction, the core parameter of the current medium needs to be considered when determining the current propagation area, and the current propagation area refers to the area where the display light of the target large display screen performs visual impact.
And step S304, determining object shielding information according to the display direction and the road information.
It is understood that the object shielding information refers to information about shielding of the display light by an object in the current area, and the object shielding information includes, but is not limited to, shielding area, shielding position, and the like.
And step S305, adjusting the current propagation area according to the object shielding information to obtain a target propagation area.
It should be appreciated that, since the object occlusion information affects the current propagation region, the object occlusion information is utilized to adjust the current propagation region to the target propagation region after the object occlusion information is determined.
And step S306, determining the visual impact characteristic value of the brightness of the target large-sized display screen to each azimuth object according to the propagation characteristic value, the target propagation region and the display characteristic information.
It can be understood that after the target transmission area is obtained, the transmission characteristic value and the display characteristic information are combined to determine the visual impact characteristic value of the brightness of the target large-sized display screen on the object in each direction.
Further, step S306 includes: according to the display characteristic information and the propagation characteristic value, the propagation characteristic value of the target large display screen in each dimension is obtained; dividing the target propagation region into a direct propagation region and a biased propagation region; determining the relative included angle between the sight of the moving object passing through the direct transmission area and the deflection transmission area and the display light of the target large-scale display screen; acquiring visual parameters of the moving object; and determining the visual impact characteristic value of the brightness of the target large-sized display screen on the object in each azimuth according to the visual parameters, the relative included angle and the propagation characteristic value of the target large-sized display screen in each dimension.
It should be understood that the dimensions are red, green and blue respectively, and the propagation eigenvalues of the red, green and blue are different for the target large-sized display screen, so that the propagation eigenvalues need to be divided based on the display property information, and the target propagation area needs to be divided into a direct propagation area and a deflection propagation area, the visual impact force for the direct propagation area is the largest, the visual impact force for the deflection propagation area is the next time, and then the relative included angle between the line of sight of the moving object passing through the direct propagation area and the deflection propagation area and the display light of the target large-sized display screen is determined, specifically:
。
Wherein, The relative angle, m 1, represents the slope of the line of sight of the moving object through the direct and eccentric propagation regions, m 2 represents the slope of the display light of the target large display screen, (x 1,y1) represents the start point coordinate of the line of sight, (x 2,y2) represents the end point coordinate of the line of sight, (x 3,y3) represents the start point coordinate of the display light, and (x 4,y4) represents the end point coordinate of the display light.
According to the embodiment, a propagation characteristic value of display light rays of a target large-sized display screen in a current medium is determined according to environmental information of a current area; acquiring the display direction of a target large display screen for playing video; determining a current propagation area of display light rays of the target large display screen according to the display direction and the current medium; determining object shielding information according to the display direction and the road information; adjusting the current propagation area according to the object shielding information to obtain a target propagation area; determining the visual impact characteristic value of the brightness of the target large-sized display screen on each azimuth object according to the propagation characteristic value, the target propagation region and the display characteristic information; by the method, after the transmission characteristic value of the display light in the current medium is determined, the current transmission area of the display light is determined by combining the display direction, then the current transmission area is adjusted to be the target transmission area according to the object shielding information, and the visual impact characteristic value of the brightness of the target large-sized display screen on the objects in all directions is comprehensively determined by combining the transmission characteristic value and the display characteristic information, so that the accuracy of determining the visual impact characteristic value can be effectively improved.
In addition, the embodiment of the invention also provides a storage medium, wherein the storage medium stores a display brightness control program based on the environmental factors, and the display brightness control program based on the environmental factors realizes the steps of the display brightness control method based on the environmental factors when being executed by a processor.
Because the storage medium adopts all the technical schemes of all the embodiments, the storage medium has at least all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted here.
In addition, referring to fig. 5, an embodiment of the present invention further provides an apparatus for controlling display brightness based on environmental factors, where the apparatus for controlling display brightness based on environmental factors includes:
The area determining module 10 is configured to determine a current area where the target large-sized display screen is located when playing the video.
And the obtaining module 20 is used for obtaining the display characteristic information of the target large display screen and the road information of the current area when the current area is the intersection area.
And the characteristic value determining module 30 is used for determining the visual impact characteristic value of the brightness of the target large-sized display screen on each azimuth object according to the display characteristic information and the road information.
And the control module 40 is used for controlling the brightness of the target large-sized display screen according to the visual impact characteristic value and the background environment factors of the current area.
The embodiment determines the current area where the target large-scale display screen is positioned when playing the video; when the current area is an intersection area, acquiring display characteristic information of a target large-sized display screen and road information of the current area; determining visual impact characteristic values of brightness of a target large-sized display screen on all azimuth objects according to the display characteristic information and the road information; controlling the brightness of the target large display screen according to the visual impact characteristic value and the background environment factor of the current area; through the mode, when the intersection area is determined, the visual impact characteristic values of the brightness for objects in different directions are comprehensively determined according to the display characteristic information and the road information, and then the brightness of the large-scale display screen of the target is controlled by combining the background environment factors of the current area, so that the accuracy of controlling the brightness can be effectively improved, and the damage to the sight of a user is avoided.
It should be noted that the above-described working procedure is merely illustrative, and does not limit the scope of the present invention, and in practical application, a person skilled in the art may select part or all of them according to actual needs to achieve the purpose of the embodiment, which is not limited herein.
In addition, technical details not described in detail in the present embodiment may refer to the method for controlling display brightness based on environmental factors provided in any embodiment of the present invention, which is not described herein.
In an embodiment, the obtaining module 20 is further configured to detect attribute information of a display primary color and a light emitting point of the target large-scale display screen playing video when the current area is an intersection area; determining the diameter of the luminous points and the distance between the luminous points according to the attribute information; counting the number of the display primary colors, and determining the type of a target large-sized display screen according to the number, the diameter of the luminous points and the distance; acquiring display characteristic information according to the type of the target large-sized display screen; the road image of the current area is identified through the target road identification model, and lane line information and position information of objects in the area are obtained; and obtaining the road information of the current area according to the lane line information and the position information of the object in the area.
In an embodiment, the feature value determining module 30 is further configured to determine, according to the environmental information of the current area, a propagation feature value of the display light of the target large-scale display screen in the current medium; acquiring the display direction of a target large display screen for playing video; determining a current propagation area of display light rays of the target large display screen according to the display direction and the current medium; determining object shielding information according to the display direction and the road information; adjusting the current propagation area according to the object shielding information to obtain a target propagation area; and determining the visual impact characteristic value of the brightness of the target large-sized display screen on the object in each azimuth according to the transmission characteristic value, the target transmission area and the display characteristic information.
In an embodiment, the feature value determining module 30 is further configured to determine a propagation feature value of the target large-scale display screen in each dimension according to the display characteristic information and the propagation feature value; dividing the target propagation region into a direct propagation region and a biased propagation region; determining the relative included angle between the sight of the moving object passing through the direct transmission area and the deflection transmission area and the display light of the target large-scale display screen; acquiring visual parameters of the moving object; and determining the visual impact characteristic value of the brightness of the target large-sized display screen on the object in each azimuth according to the visual parameters, the relative included angle and the propagation characteristic value of the target large-sized display screen in each dimension.
In an embodiment, the control module 40 is further configured to obtain visual impact characteristic values of the light-emitting object on different objects in the outdoor environment; determining blink frequencies and line-of-sight transition durations of different subjects at the visual impact characteristic values; when the blink frequency is a preset blink frequency and the sight line transfer time is a preset time, determining each brightness value and each visual impact characteristic value; obtaining corresponding brightness control parameters according to the brightness values; determining a mapping relation to construct a target external key, and constructing a mapping relation between each visual impact characteristic value and the brightness control parameter according to the target external key; and controlling the brightness of the target large-sized display screen according to the mapping relation, the visual impact characteristic value and the background environment factor of the current area.
In an embodiment, the control module 40 is further configured to train a target brightness control parameter prediction model according to the mapping relationship; inputting the visual impact characteristic value into a target brightness control parameter prediction model, and outputting a target brightness control parameter by the target brightness control parameter prediction model; determining background environment brightness according to the background environment factors of the current area; determining a difference value between the background environment brightness and the brightness of the target large-sized display screen; and controlling the brightness of the target large-sized display screen according to the target brightness control parameter and the difference value.
In an embodiment, the control module 40 is further configured to collect a current display brightness of the target large-scale display screen; determining a current visual impact characteristic value of current display brightness on each azimuth object according to the display characteristic information and the road information; and when the current visual impact characteristic value is a preset characteristic value, controlling the target large-sized display screen to continuously play the video with the current display brightness.
Other embodiments of the display brightness control device based on environmental factors or the implementation method thereof according to the present invention can refer to the above method embodiments, and are not described herein.
It should be understood that, although the steps in the flowcharts in the embodiments of the present application are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited in order and may be performed in other orders, unless explicitly stated herein. Moreover, at least some of the steps in the figures may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, the order of their execution not necessarily occurring in sequence, but may be performed alternately or alternately with other steps or at least a portion of the other steps or stages.
Furthermore, it should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. Read Only Memory)/RAM, magnetic disk, optical disk) and including several instructions for causing a terminal device (which may be a mobile phone, a computer, an integrated platform workstation, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (7)
1. An environmental factor-based display brightness control method, characterized in that the environmental factor-based display brightness control method comprises the following steps:
determining the current area of a target large-scale display screen when playing video;
When the current area is an intersection area, acquiring display characteristic information of a target large-sized display screen and road information of the current area;
determining visual impact characteristic values of brightness of a target large-sized display screen on all azimuth objects according to the display characteristic information and the road information;
Controlling the brightness of the target large display screen according to the visual impact characteristic value and the background environment factor of the current area;
when the current area is an intersection area, acquiring display characteristic information of a target large display screen and road information of the current area, wherein the method comprises the following steps:
when the current area is an intersection area, detecting attribute information of display primary colors and luminous points of the target large display screen for playing video;
Determining the diameter of the luminous points and the distance between the luminous points according to the attribute information;
Counting the number of the display primary colors, and determining the type of a target large-sized display screen according to the number, the diameter of the luminous points and the distance;
acquiring display characteristic information according to the type of the target large-sized display screen;
The road image of the current area is identified through the target road identification model, and lane line information and position information of objects in the area are obtained;
obtaining road information of the current area according to the lane line information and the position information of the object in the area;
The method for determining the visual impact characteristic value of the brightness of the target large-sized display screen to the objects in all directions according to the display characteristic information and the road information comprises the following steps:
Determining the propagation characteristic value of display light of a target large-sized display screen in a current medium according to the environmental information of the current area;
acquiring the display direction of a target large display screen for playing video;
determining a current propagation area of display light rays of the target large display screen according to the display direction and the current medium;
Determining object shielding information according to the display direction and the road information;
adjusting the current propagation area according to the object shielding information to obtain a target propagation area;
determining the visual impact characteristic value of the brightness of the target large-sized display screen on each azimuth object according to the propagation characteristic value, the target propagation region and the display characteristic information;
The controlling the brightness of the target large-sized display screen according to the visual impact characteristic value and the background environment factor of the current area comprises the following steps:
Acquiring visual impact characteristic values of luminous objects on different objects in an outdoor environment;
determining blink frequencies and line-of-sight transition durations of different subjects at the visual impact characteristic values;
When the blink frequency is a preset blink frequency and the sight line transfer time is a preset time, determining each brightness value and each visual impact characteristic value;
Obtaining corresponding brightness control parameters according to the brightness values;
Determining a mapping relation to construct a target external key, and constructing a mapping relation between each visual impact characteristic value and the brightness control parameter according to the target external key;
and controlling the brightness of the target large-sized display screen according to the mapping relation, the visual impact characteristic value and the background environment factor of the current area.
2. The method for controlling display brightness based on environmental factors according to claim 1, wherein the determining the visual impact characteristic value of the brightness of the target large-sized display screen to each azimuth object according to the propagation characteristic value, the target propagation region and the display characteristic information comprises:
According to the display characteristic information and the propagation characteristic value, the propagation characteristic value of the target large display screen in each dimension is obtained;
dividing the target propagation region into a direct propagation region and a biased propagation region;
determining the relative included angle between the sight of the moving object passing through the direct transmission area and the deflection transmission area and the display light of the target large-scale display screen;
Acquiring visual parameters of the moving object;
And determining the visual impact characteristic value of the brightness of the target large-sized display screen on the object in each azimuth according to the visual parameters, the relative included angle and the propagation characteristic value of the target large-sized display screen in each dimension.
3. The method for controlling the brightness of the target large-sized display screen according to the mapping relation, the visual impact characteristic value and the background environmental factor of the current area as claimed in claim 1, comprising:
Training a target brightness control parameter prediction model according to the mapping relation;
inputting the visual impact characteristic value into a target brightness control parameter prediction model, and outputting a target brightness control parameter by the target brightness control parameter prediction model;
determining background environment brightness according to the background environment factors of the current area;
Determining a difference value between the background environment brightness and the brightness of the target large-sized display screen;
and controlling the brightness of the target large-sized display screen according to the target brightness control parameter and the difference value.
4. The method for controlling brightness of a display based on environmental factors according to any one of claims 1 to 3, wherein after the brightness of the target large-sized display screen is controlled according to the visual impact characteristic value and the background environmental factor of the current area, further comprising:
collecting the current display brightness of a target large display screen;
determining a current visual impact characteristic value of current display brightness on each azimuth object according to the display characteristic information and the road information;
And when the current visual impact characteristic value is a preset characteristic value, controlling the target large-sized display screen to continuously play the video with the current display brightness.
5. An environmental factor-based display luminance control apparatus, comprising:
the area determining module is used for determining the current area where the target large-sized display screen is positioned when playing the video;
the acquisition module is used for acquiring display characteristic information of the target large display screen and road information of the current area when the current area is an intersection area;
The characteristic value determining module is used for determining the visual impact characteristic value of the brightness of the target large-sized display screen on each azimuth object according to the display characteristic information and the road information;
The control module is used for controlling the brightness of the target large-sized display screen according to the visual impact characteristic value and the background environment factor of the current area;
The acquisition module is also used for detecting attribute information of display primary colors and luminous points of the target large display screen play video when the current area is an intersection area; determining the diameter of the luminous points and the distance between the luminous points according to the attribute information; counting the number of the display primary colors, and determining the type of a target large-sized display screen according to the number, the diameter of the luminous points and the distance; acquiring display characteristic information according to the type of the target large-sized display screen; the road image of the current area is identified through the target road identification model, and lane line information and position information of objects in the area are obtained; obtaining road information of the current area according to the lane line information and the position information of the object in the area;
The characteristic value determining module is further used for determining the propagation characteristic value of the display light of the target large-sized display screen in the current medium according to the environmental information of the current area; acquiring the display direction of a target large display screen for playing video; determining a current propagation area of display light rays of the target large display screen according to the display direction and the current medium; determining object shielding information according to the display direction and the road information; adjusting the current propagation area according to the object shielding information to obtain a target propagation area; determining the visual impact characteristic value of the brightness of the target large-sized display screen on each azimuth object according to the propagation characteristic value, the target propagation region and the display characteristic information;
The control module is also used for acquiring visual impact characteristic values of the luminous objects on different objects in an outdoor environment; determining blink frequencies and line-of-sight transition durations of different subjects at the visual impact characteristic values; when the blink frequency is a preset blink frequency and the sight line transfer time is a preset time, determining each brightness value and each visual impact characteristic value; obtaining corresponding brightness control parameters according to the brightness values; determining a mapping relation to construct a target external key, and constructing a mapping relation between each visual impact characteristic value and the brightness control parameter according to the target external key; and controlling the brightness of the target large-sized display screen according to the mapping relation, the visual impact characteristic value and the background environment factor of the current area.
6. An environmental factor-based display luminance control apparatus, characterized by comprising: a memory, a processor, and an ambient factor based display brightness control program stored on the memory and executable on the processor, the ambient factor based display brightness control program configured to implement the ambient factor based display brightness control method of any of claims 1-4.
7. A storage medium having stored thereon an environmental factor-based display luminance control program which, when executed by a processor, implements the environmental factor-based display luminance control method according to any one of claims 1 to 4.
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