An intelligent control method and system for an LED display screen based on feature information recognition

Abstract

The present invention discloses an intelligent control method and system for an LED display screen based on feature information recognition, which relates to the technical field of display screen control. The method includes obtaining the structure information of the LED display screen, obtaining the ambient light information according to the sensor structure information, and obtaining the maximum brightness information and the minimum brightness information of the display screen according to the display structure information. By analyzing the adjustable ambient brightness range of the display screen, the present invention improves the efficiency of display screen brightness adjustment. Through the display screen brightness adjustment model, the accuracy of display screen brightness adjustment is improved. By combining the display screen area information, it is avoided that when directly adjusting the overall brightness of the display screen, the visual effect is reduced due to the mismatch with the ambient brightness, and at the same time, the image display effect difference caused by the brightness difference of the display screen area is reduced. By analyzing the pixel movement speed information, the refresh rate of the display screen is analyzed, which improves the image smoothness and ensures the stability and reliability of the display screen.

Description

Technical Field

[0001] The present invention relates to the technical field of display screen control, and in particular to an intelligent control method and system for an LED display screen based on feature information recognition. Background Art

[0002] LED (Light-Emitting Diode) screens have become the main way of outdoor display. And with the continuous optimization of the pitch size, their fineness has approached that of traditional display screens such as liquid crystals. Therefore, they will gradually become the main outdoor display screens. Especially in the fields of advertising, information release, and public display, LED display screens are widely used due to their characteristics such as high brightness, low power consumption, and long lifespan.

[0003] At present, for the control of LED display screens, there are still problems that the brightness of the display screen cannot be accurately adjusted according to the ambient brightness based on the brightness adjustment performance of the display screen itself, and a suitable brightness adjustment algorithm cannot be established. When adjusting by a fixed value in conventional means, the brightness of the display screen cannot be accurately adjusted according to the ambient brightness, reducing the accuracy of the display screen brightness adjustment. And often the overall brightness of the display screen is directly adjusted by the ambient brightness, reducing the visual effect of the displayed image. The refresh rate of the display screen cannot be accurately set according to the content of the displayed image, resulting in image ghosting and reducing the image smoothness. Summary of the Invention

[0004] To solve the above technical problems, an intelligent control method and system for an LED display screen based on feature information recognition are provided. The technical solution of the present invention solves the problems proposed in the above background art, that is, the brightness of the display screen cannot be accurately adjusted according to the ambient brightness based on the brightness adjustment performance of the display screen itself, a suitable brightness adjustment algorithm cannot be established. When adjusting by a fixed value in conventional means, the brightness of the display screen cannot be accurately adjusted according to the ambient brightness, reducing the accuracy of the display screen brightness adjustment. And often the overall brightness of the display screen is directly adjusted by the ambient brightness, reducing the visual effect of the displayed image. The refresh rate of the display screen cannot be accurately set according to the content of the displayed image, resulting in image ghosting and reducing the image smoothness.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] An intelligent control method for an LED display screen based on feature information recognition, comprising:

[0007] Obtaining the LED display screen structure information, where the LED display screen structure information includes sensor structure information and display structure information;

[0008] Obtain ambient light information according to the sensor structure information, where the ambient light information represents the ambient illumination condition corresponding to the LED display area;

[0009] Obtain the maximum display brightness information and the minimum display brightness information of the display screen according to the display structure information;

[0010] Obtain the ambient brightness adjustment range information according to the maximum display brightness information and the minimum display brightness information of the display screen;

[0011] Obtain an ambient brightness test set according to the ambient brightness adjustment range information;

[0012] Obtain a display screen brightness adjustment model according to the ambient brightness test set;

[0013] Obtain display screen brightness adjustment information according to the display screen brightness adjustment model and the ambient light information;

[0014] Obtain the information of the content to be displayed, where the information of the content to be displayed includes the image information and video data to be displayed on the LED display screen;

[0015] Obtain pixel movement speed information based on the optical flow method according to the information of the content to be displayed, where the pixel movement speed information represents the movement speed of the same pixel point in the image;

[0016] Obtain the display screen refresh rate setting information according to the pixel movement speed information;

[0017] Adjust the display screen according to the display screen refresh rate setting information and the display screen brightness adjustment information.

[0018] Preferably, the obtaining of the ambient brightness adjustment range information according to the maximum display brightness information and the minimum display brightness information of the display screen specifically includes:

[0019] Obtain the standard color gamut information of the display screen according to the LED display screen structure information;

[0020] Obtain the standard color gamut reference coordinate information according to the standard color gamut information of the display screen, where the standard color gamut reference coordinate information represents the coordinates of the standard color gamut reference color of the display screen in the color space coordinate system;

[0021] Obtain color test image information, where the color test image is a display screen test image of three primary colors, red, green, and blue;

[0022] Perform image display based on the LED display screen according to the color test image information;

[0023] Taking the maximum display brightness information and the minimum display brightness information of the display screen as a reference, using the external light source as the ambient brightness source, adjust the ambient brightness to obtain image color display data;

[0024] Based on the color space coordinate system, color display coordinate information is obtained according to the image color display data;

[0025] According to the color display coordinate information and the standard color gamut reference coordinate information, color coordinate distance information is obtained;

[0026] Based on the recognition and analysis of the color difference of the human eye, a color coordinate distance threshold is obtained;

[0027] According to the color coordinate distance information and the color coordinate distance threshold, ambient brightness adjustment range information is obtained.

[0028] Preferably, the obtaining of the ambient brightness adjustment range information according to the color coordinate distance information and the color coordinate distance threshold specifically includes:

[0029] According to the maximum brightness information of the display screen, the LED display screen is set to the maximum brightness;

[0030] Based on the external light source, the ambient brightness is increased until the color coordinate distance exceeds the color coordinate distance threshold, and the ambient brightness at this time is used as the maximum adjustable ambient brightness;

[0031] According to the minimum brightness information of the display screen, the LED display screen is set to the minimum brightness;

[0032] Based on the external light source, the ambient brightness is decreased until the color coordinate distance exceeds the color coordinate distance threshold, and the ambient brightness at this time is used as the minimum adjustable ambient brightness;

[0033] According to the maximum adjustable ambient brightness and the minimum adjustable ambient brightness, ambient brightness adjustment range information is obtained;

[0034] Among them, the color coordinate distance is:

[0035]

[0036] In the formula, E is the color coordinate distance, represents the color display coordinate of the i-th reference color, represents the standard color gamut reference coordinate of the i-th reference color.

[0037] Preferably, the obtaining of the display screen brightness adjustment model according to the ambient brightness test set specifically includes:

[0038] According to the LED display screen structure information, conventional ambient brightness information is obtained, and the conventional ambient brightness information represents the average value of the ambient brightness in the conventional application environment of the LED display screen;

[0039] According to the ambient brightness adjustment range information and the conventional ambient brightness information, an ambient brightness difference coefficient is obtained;

[0040] Obtain the ambient brightness reference quantity according to the ambient brightness difference coefficient;

[0041] Use the ambient brightness reference quantity as the ambient brightness difference value to divide the ambient brightness adjustment range, and obtain the ambient brightness test set. The ambient brightness test set includes multiple ambient brightness data, and the difference between adjacent ambient brightnesses is the ambient brightness reference quantity;

[0042] Among them, if the ambient brightness difference coefficient , then the ambient brightness reference quantity is , if or , then the ambient brightness reference quantity is ;

[0043] Obtain the color test image information and the standard color gamut reference coordinate information;

[0044] Based on the ambient brightness test set, display the color test image on the LED display screen to obtain the color display test data under different ambient brightnesses;

[0045] Based on the color space coordinate system, obtain the color display test coordinate information according to the color display test data;

[0046] According to the color display test coordinate information and the standard color gamut reference coordinate information, obtain the color test coordinate distance information;

[0047] Adjust the display screen brightness until the color test coordinate distance reaches the minimum, and obtain the optimal display screen brightness information corresponding to the ambient brightness;

[0048] Match the ambient brightness test set with the corresponding optimal display screen brightness information to obtain the display screen brightness adjustment data set;

[0049] According to the display screen brightness adjustment data set, train the existing brightness adjustment model to obtain the display screen brightness adjustment model;

[0050] The calculation formula of the ambient brightness difference coefficient is:

[0051]

[0052] In the formula, is the ambient brightness difference coefficient, is the conventional ambient brightness, is the maximum adjustable ambient brightness in the ambient brightness adjustment range, is the minimum adjustable ambient brightness in the ambient brightness adjustment range;

[0053] The display screen brightness adjustment model is specifically:

[0054]

[0055] Wherein, L is the brightness of the display screen, indicating that the ambient brightness is the optimal brightness of the display screen corresponding thereto, is the ambient brightness, represents the brightness change coefficient, wherein, if , then , if , then , is the model feature coefficient, is the correction term.

[0056] Preferably, obtaining the display screen brightness adjustment information according to the display screen brightness adjustment model and the ambient light information specifically includes:

[0057] Obtaining the ambient brightness information according to the ambient light information;

[0058] Dividing the display screen into regions, dividing the display screen regions with the same ambient brightness into the same region, and obtaining the display screen region ambient brightness information;

[0059] Based on the display screen region ambient brightness information and the display screen brightness adjustment model, obtaining the display screen brightness information corresponding to the ambient brightness of each region;

[0060] Obtaining the brightness deviation coefficient according to the ambient brightness information;

[0061] Obtaining the brightness recognition feature value according to the brightness deviation coefficient and the display screen brightness information;

[0062] According to the display screen brightness information, merging the regions where the display screen brightness difference is less than the brightness recognition feature value, obtaining the display screen merged region information, and taking the average value of the display screen brightness within each display screen merged region as the display screen brightness of the display screen merged region;

[0063] Obtaining the merged region display screen brightness information according to the display screen merged region information;

[0064] Obtaining the display screen brightness adjustment information according to the merged region display screen brightness information, and the display screen brightness adjustment information is used to adjust the display screen brightness;

[0065] Among them, the calculation formula of the brightness deviation coefficient is:

[0066]

[0067] Wherein, k is the brightness deviation coefficient, is the maximum value of the display screen region ambient brightness, is the minimum environmental brightness value of the display screen area, is the maximum adjustable environmental brightness in the environmental brightness adjustment range, is the minimum adjustable environmental brightness in the environmental brightness adjustment range;

[0068] The specific brightness recognition characteristic value is:

[0069]

[0070] In the formula, is the brightness recognition characteristic value, is the maximum brightness value of the display screen corresponding to the environmental brightness of the display screen area.

[0071] Preferably, obtaining the display screen refresh rate setting information according to the pixel movement speed information specifically includes:

[0072] Obtaining the basic refresh rate information of the display screen according to the LED display screen structure information;

[0073] Based on the analysis of the LED display screen application scenario, obtaining the visual angle information and the viewing distance information, where the visual angle information represents the minimum resolvable angle of the LED display screen, and the viewing distance information represents the viewing distance when the LED display screen is applied;

[0074] Obtaining the visual resolution limit value according to the visual angle information and the viewing distance information;

[0075] Obtaining the pixel movement speed threshold according to the visual resolution limit value and the basic refresh rate information of the display screen;

[0076] Judging whether to adjust the display screen refresh rate according to the pixel movement speed information and the pixel movement speed threshold. If not, keep the basic refresh rate of the display screen unchanged. If so, obtain the target refresh rate information of the display screen according to the pixel movement speed information and the visual resolution limit value;

[0077] Obtaining the display screen refresh rate setting information according to the target refresh rate information of the display screen;

[0078] Among them, the specific visual resolution limit value is:

[0079]

[0080] In the formula, is the visual resolution limit value, is the viewing distance, is the visual angle;

[0081] The specific pixel movement speed threshold is:

[0082]

[0083] In the formula, is the pixel movement speed threshold, is the basic refresh rate of the display screen;

[0084] The target refresh rate of the display screen is specifically:

[0085]

[0086] In the formula, is the target refresh rate of the display screen, is the pixel movement speed, represents the maximum refresh rate of the display screen.

[0087] Furthermore, an intelligent control system for an LED display screen based on feature information recognition is proposed to implement the control method as described above, including:

[0088] A main control module, which is used to obtain the ambient brightness adjustment range information according to the color coordinate distance information and the color coordinate distance threshold, match the ambient brightness test set with the corresponding best brightness information of the display screen to obtain the display screen brightness adjustment data set, train the existing brightness adjustment model according to the display screen brightness adjustment data set to obtain the display screen brightness adjustment model, divide the display screen into regions to obtain the ambient brightness information of the display screen regions, obtain the display screen brightness adjustment information according to the merged region display screen brightness information, judge whether to adjust the refresh rate of the display screen according to the pixel movement speed information and the pixel movement speed threshold, obtain the target refresh rate information of the display screen according to the pixel movement speed information and the visual resolution limit value, and obtain the display screen refresh rate setting information according to the target refresh rate information of the display screen;

[0089] An information acquisition module, which is used to acquire the LED display screen structure information, sensor structure information and display structure information, acquire the ambient light information according to the sensor structure information, acquire the maximum brightness information and minimum brightness information of the display screen according to the display structure information, acquire the content information to be displayed, and acquire the pixel movement speed information based on the optical flow method according to the content information to be displayed;

[0090] A display screen test module, which is used to perform image display on an LED display screen based on color test image information, adjust the ambient brightness with an external light source as the ambient brightness source based on the maximum brightness information and minimum brightness information of the display screen, obtain image color display data, obtain color display coordinate information based on the color space coordinate system according to the image color display data, obtain color coordinate distance information according to the color display coordinate information and the standard color gamut reference coordinate information, perform image display on the color test image based on the LED display screen according to the ambient brightness test set, obtain color display test data under different ambient brightnesses, obtain color display test coordinate information based on the color space coordinate system according to the color display test data, and obtain color test coordinate distance information according to the color display test coordinate information and the standard color gamut reference coordinate information;

[0091] An evaluation module, which is used to obtain conventional ambient brightness information according to the LED display screen structure information, obtain an ambient brightness difference coefficient according to the ambient brightness adjustment range information and the conventional ambient brightness information, obtain an ambient brightness reference quantity according to the ambient brightness difference coefficient, obtain a brightness deviation coefficient according to the ambient brightness information, and obtain a brightness recognition eigenvalue according to the brightness deviation coefficient and the display screen brightness information;

[0092] Optionally, the main control module specifically includes:

[0093] A control unit, which is used to divide the display screen into regions, obtain the ambient brightness information of the display screen regions, obtain the display screen brightness adjustment information according to the combined region display screen brightness information, judge whether to adjust the display screen refresh rate according to the pixel movement speed information and the pixel movement speed threshold, obtain the display screen target refresh rate information according to the pixel movement speed information and the visual resolution limit value, and obtain the display screen refresh rate setting information according to the display screen target refresh rate information;

[0094] An information receiving unit, which interacts with the information acquisition module and the display screen test module, and is used to receive data and transmit it to the model training unit;

[0095] A model training unit, which is used to obtain the ambient brightness adjustment range information according to the color coordinate distance information and the color coordinate distance threshold, match the ambient brightness test set with the corresponding display screen optimal brightness information, obtain the display screen brightness adjustment data set, and train the existing brightness adjustment model according to the display screen brightness adjustment data set to obtain the display screen brightness adjustment model.

[0096] Optionally, the information acquisition module specifically includes:

[0097] A first acquisition unit, which is used to acquire the LED display screen structure information, the sensor structure information, and the display structure information, and acquire the ambient light information according to the sensor structure information;

[0098] A second acquisition unit, which is used to acquire the maximum brightness information and the minimum brightness information of the display screen according to the display structure information, acquire the information of the content to be displayed, and acquire the pixel movement speed information based on the optical flow method according to the information of the content to be displayed.

[0099] Optionally, the display screen test module specifically includes:

[0100] A first test unit, which is used to perform image display on the LED display screen based on the color test image information, adjust the ambient brightness by using the maximum brightness information and the minimum brightness information of the display screen as the reference and taking the external light source as the ambient brightness source, acquire the image color display data, acquire the color display coordinate information based on the color space coordinate system according to the image color display data, and acquire the color coordinate distance information according to the color display coordinate information and the standard color gamut reference coordinate information;

[0101] A second test unit, which is used to perform image display on the color test image on the LED display screen based on the ambient brightness test set, obtain the color display test data under different ambient brightnesses, acquire the color display test coordinate information based on the color space coordinate system according to the color display test data, and acquire the color test coordinate distance information according to the color display test coordinate information and the standard color gamut reference coordinate information.

[0102] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0103] The present invention provides an intelligent control method and system for an LED display screen based on feature information recognition. By analyzing the adjustable ambient brightness range of the display screen, the brightness adjustment efficiency of the display screen is improved. By means of the display screen brightness adjustment model, the accuracy of the display screen brightness adjustment is improved. By combining the display screen area information, it is avoided that when directly adjusting the overall brightness of the display screen, the visual effect is reduced due to the mismatch with the ambient brightness, and at the same time, the difference in the image display effect caused by the difference in the area brightness of the display screen is reduced. By analyzing the pixel movement speed information, the refresh rate of the display screen is analyzed, the image smoothness is improved, and the stability and reliability of the display screen are ensured. Description of the Drawings

[0104] Figure 1 It is a flowchart of an intelligent control method for an LED display screen based on feature information recognition proposed by the present invention;

[0105] Figure 2Flowchart for obtaining environmental brightness adjustment range information in the present invention;

[0106] Figure 3 Flowchart for obtaining the display brightness adjustment model in the present invention;

[0107] Figure 4 Flowchart for obtaining display brightness adjustment information in the present invention;

[0108] Figure 5 Flowchart for obtaining display refresh rate setting information in the present invention;

[0109] Figure 6 Block diagram of an intelligent control system for an LED display based on feature information recognition proposed by the present invention. Detailed implementation manners

[0110] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations.

[0111] Refer to Figure 1 - Figure 5 As shown, an intelligent control method for an LED display based on feature information recognition in an embodiment of the present invention includes:

[0112] Obtain the LED display structure information, where the LED display structure information includes sensor structure information and display structure information;

[0113] According to the sensor structure information, obtain the environmental light information, where the environmental light information represents the environmental illumination condition corresponding to the LED display area;

[0114] According to the display structure information, obtain the maximum brightness information and minimum brightness information of the display;

[0115] According to the maximum brightness information and minimum brightness information of the display, obtain the environmental brightness adjustment range information;

[0116] Specifically, obtaining the environmental brightness adjustment range information according to the maximum brightness information and minimum brightness information of the display specifically includes:

[0117] According to the LED display structure information, obtain the standard color gamut information of the display;

[0118] According to the standard color gamut information of the display, obtain the standard color gamut reference coordinate information, where the standard color gamut reference coordinate information represents the coordinates of the standard color gamut reference color of the display in the color space coordinate system;

[0119] Obtain color test image information, where the color test image is a display screen test image of three reference colors: red, green, and blue;

[0120] Based on the color test image information, perform image display on the LED display screen;

[0121] Taking the maximum brightness information of the display screen and the minimum brightness information of the display screen as the reference, using the external light source as the ambient brightness source, adjust the ambient brightness to obtain image color display data;

[0122] Based on the color space coordinate system, obtain color display coordinate information according to the image color display data;

[0123] According to the color display coordinate information and the standard color gamut reference coordinate information, obtain color coordinate distance information;

[0124] Based on the recognition and analysis of human eye color differences, obtain the color coordinate distance threshold;

[0125] According to the color coordinate distance information and the color coordinate distance threshold, obtain the ambient brightness adjustment range information.

[0126] Specifically, obtaining the ambient brightness adjustment range information according to the color coordinate distance information and the color coordinate distance threshold specifically includes:

[0127] According to the maximum brightness information of the display screen, set the LED display screen to the maximum brightness;

[0128] Based on the external light source, increase the ambient brightness until the color coordinate distance exceeds the color coordinate distance threshold, and take the ambient brightness at this time as the maximum adjustable ambient brightness;

[0129] According to the minimum brightness information of the display screen, set the LED display screen to the minimum brightness;

[0130] Based on the external light source, decrease the ambient brightness until the color coordinate distance exceeds the color coordinate distance threshold, and take the ambient brightness at this time as the minimum adjustable ambient brightness;

[0131] According to the maximum adjustable ambient brightness and the minimum adjustable ambient brightness, obtain the ambient brightness adjustment range information;

[0132] Among them, the color coordinate distance is:

[0133]

[0134] In the formula, E is the color coordinate distance, represents the color display coordinate of the i-th reference color, represents the standard color gamut reference coordinate of the i-th reference color.

[0135] In this solution, image display is performed on the LED display screen based on the color test image information. Taking the maximum brightness information and the minimum brightness information of the display screen as the benchmarks, the external light source is used as the ambient brightness source to adjust the ambient brightness, and image color display data is obtained. In this embodiment, the image color display data is the image data displayed on the display screen collected by the image sensor, which is used to represent the image display condition observed by the human eye. Based on the color space coordinate system, according to the image color display data, color display coordinate information is obtained. According to the color display coordinate information and the standard color gamut reference coordinate information, the color coordinate distance is obtained. The LED display screen is set to the maximum brightness, and the ambient brightness is increased until the color coordinate distance exceeds the color coordinate distance threshold. At this time, the ambient brightness is used as the maximum adjustable ambient brightness. The LED display screen is set to the minimum brightness, and the ambient brightness is decreased until the color coordinate distance exceeds the color coordinate distance threshold. At this time, the ambient brightness is used as the minimum adjustable ambient brightness;

[0136] It can be understood that the ambient brightness is constantly changing over time, and the display screen adjusts its own brightness according to the ambient brightness to ensure the reducibility and accuracy of the displayed image color, ensuring the image visual effect. However, there are certain limitations to the ambient brightness that the display screen can adjust. If the ambient brightness is too high, due to the limited maximum brightness of the display screen itself, there will also be a situation where it cannot be adjusted to the optimal brightness. Therefore, the color coordinate distance is used to analyze the ambient brightness condition that the display screen can adjust.

[0137] In this embodiment, the color space coordinate system is the CIE XYZ color space coordinate system, the standard color gamut of the display screen is Adobe RGB, and the reference color coordinates are (0.950456, 0.743125, 0.066924) (red), (0.323793, 1.0, 0.0) (green), (0.159057, 0.072096, 0.918256) (blue). The color coordinate distance threshold is 3. In general visual application scenarios, when the color coordinate distance is less than or equal to 3, most people can hardly perceive the obvious difference between colors and consider the color deviation to be within an acceptable range, with a good visual effect. When the color coordinate distance exceeds 3, the color difference will be more obvious, which may affect the visual effect.

[0138] According to the ambient brightness adjustment range information, an ambient brightness test set is obtained;

[0139] According to the ambient brightness test set, a display screen brightness adjustment model is obtained;

[0140] Specifically, obtaining a display screen brightness adjustment model according to the ambient brightness test set specifically includes:

[0141] Obtain the conventional ambient brightness information according to the LED display structure information, where the conventional ambient brightness information represents the average ambient brightness in the conventional application environment of the LED display;

[0142] Obtain the ambient brightness difference coefficient according to the ambient brightness adjustment range information and the conventional ambient brightness information;

[0143] Obtain the ambient brightness reference quantity according to the ambient brightness difference coefficient;

[0144] Use the ambient brightness reference quantity as the ambient brightness difference value to divide the ambient brightness adjustment range, and obtain the ambient brightness test set. The ambient brightness test set includes multiple ambient brightness data, and the difference between adjacent ambient brightnesses is the ambient brightness reference quantity;

[0145] Among them, if the ambient brightness difference coefficient , then the ambient brightness reference quantity is , if or , then the ambient brightness reference quantity is ;

[0146] Obtain the color test image information and the standard color gamut reference coordinate information;

[0147] Based on the ambient brightness test set, display the color test image on the LED display to obtain the color display test data under different ambient brightnesses;

[0148] Based on the color space coordinate system, obtain the color display test coordinate information according to the color display test data;

[0149] Obtain the color test coordinate distance information according to the color display test coordinate information and the standard color gamut reference coordinate information;

[0150] Adjust the display brightness until the color test coordinate distance reaches the minimum, and obtain the optimal display brightness information corresponding to the ambient brightness;

[0151] Match the ambient brightness test set with the corresponding optimal display brightness information to obtain the display brightness adjustment data set;

[0152] Train the existing brightness adjustment model according to the display brightness adjustment data set to obtain the display brightness adjustment model;

[0153] The calculation formula of the ambient brightness difference coefficient is:

[0154]

[0155] In the formula, is the ambient brightness difference coefficient, is the conventional ambient brightness, is the maximum adjustable ambient brightness within the ambient brightness adjustment range, is the minimum adjustable ambient brightness within the ambient brightness adjustment range;

[0156] The specific display screen brightness adjustment model is as follows:

[0157]

[0158] In the formula, L is the display screen brightness, represents the optimal brightness of the display screen corresponding to the ambient brightness of ; is the ambient brightness, represents the brightness change coefficient, where, if , then , if , then , is the model characteristic coefficient, is the correction term.

[0159] In this solution, through the ambient brightness adjustment range information and the conventional ambient brightness information, the ambient brightness difference coefficient is obtained. According to the ambient brightness difference coefficient, the ambient brightness reference quantity is obtained. The ambient brightness adjustment range is divided by using the ambient brightness reference quantity as the ambient brightness difference value to obtain the ambient brightness test set. Based on the LED display screen, the color test image is displayed according to the ambient brightness test set to obtain the color display test data under different ambient brightnesses. The color display test coordinate information is obtained. According to the color display test coordinate information and the standard color gamut reference coordinate information, the color test coordinate distance information is obtained. The display screen brightness is adjusted until the color test coordinate distance reaches the minimum, and the optimal brightness information of the display screen corresponding to the ambient brightness is obtained. The ambient brightness test set is matched with the corresponding optimal brightness information of the display screen to obtain the display screen brightness adjustment data set. According to the display screen brightness adjustment data set, the existing brightness adjustment model is trained to obtain the display screen brightness adjustment model;

[0160] It can be understood that by comparing the adjustable ambient brightness range of the display screen with the conventional ambient brightness, analyzing the difference situation, and ensuring the ambient brightness reference quantity through the analysis result, the adjustable ambient brightness range of the display screen is equally divided by using the ambient brightness reference quantity, avoiding the increase in data volume caused by too small a difference value when analyzing the display screen brightness with the change of ambient brightness, reducing the analysis efficiency, and the reduction in the accuracy of the analysis result caused by too large a difference value. When adjusting the display screen brightness according to the ambient brightness until the color of the displayed image reaches the maximum reduction degree, the optimal display screen brightness corresponding to each ambient brightness is obtained, improving the accuracy of subsequent display screen brightness adjustment.

[0161] In this embodiment, through The change distinguishes the display brightness under different ambient brightnesses. The environment with brightness lower than the conventional ambient brightness is regarded as the low-light environment. At this time, as the ambient brightness increases, the adjustment speed of the display brightness should slow down to avoid the light stimulation to the eyes caused by excessive changes in the display brightness. However, in the high-brightness environment, the adjustment speed of the display brightness should gradually increase to quickly match the ambient brightness and ensure the image display effect.

[0162] Obtain the display brightness adjustment information according to the display brightness adjustment model and the ambient light information;

[0163] Specifically, obtaining the display brightness adjustment information according to the display brightness adjustment model and the ambient light information specifically includes:

[0164] Obtain the ambient brightness information according to the ambient light information;

[0165] Divide the display screen into regions, divide the display screen regions with the same ambient brightness into the same region, and obtain the display screen region ambient brightness information;

[0166] According to the display screen region ambient brightness information, based on the display brightness adjustment model, obtain the display brightness information corresponding to the ambient brightness of each region;

[0167] Obtain the brightness deviation coefficient according to the ambient brightness information;

[0168] Obtain the brightness recognition feature value according to the brightness deviation coefficient and the display brightness information;

[0169] According to the display brightness information, merge the regions where the display brightness difference is less than the brightness recognition feature value to obtain the display screen merged region information, and use the average display brightness within each display screen merged region as the display brightness of the display screen merged region;

[0170] Obtain the merged region display brightness information according to the display screen merged region information;

[0171] Obtain the display brightness adjustment information according to the merged region display brightness information, and the display brightness adjustment information is used to adjust the display brightness;

[0172] Among them, the calculation formula of the brightness deviation coefficient is:

[0173]

[0174] In the formula, k is the brightness deviation coefficient, is the maximum value of the display screen region ambient brightness, is the minimum value of the display screen region ambient brightness, is the maximum adjustment ambient brightness in the ambient brightness adjustment range, is the minimum adjustable ambient brightness in the ambient brightness adjustment range;

[0175] The specific brightness recognition characteristic value is as follows:

[0176]

[0177] In the formula, is the brightness recognition characteristic value, is the maximum brightness of the display screen corresponding to the ambient brightness of the display screen area.

[0178] In this solution, by dividing the display screen into regions, the display screen areas with the same ambient brightness are divided into the same region. According to the ambient brightness information of the display screen area and based on the display screen brightness adjustment model, the display screen brightness information corresponding to the ambient brightness of each region is obtained. According to the display screen brightness information, the regions with a display screen brightness difference less than the brightness recognition characteristic value are merged to obtain the display screen merged region information. According to the display screen brightness information of the merged regions, the display screen brightness adjustment information is obtained.

[0179] This solution can more accurately control the brightness of each region through zonal adjustment, avoid unnecessary energy consumption, thereby achieving an energy-saving effect, enabling the display screen to maintain a clear and comfortable display effect in each region, ensuring that the display screen brightness of each region matches the ambient brightness, reducing the impact of the ambient brightness on the image display, and improving the overall visual experience. However, it will also cause the regional brightness of the display screen to be inconsistent, and the required display screen performance occupancy ratio for ensuring different regional display screen brightnesses will also increase. Therefore, in this solution, the regions are merged, which reduces the regional brightness difference of the display screen while reducing the performance occupied by the display screen brightness adjustment.

[0180] It can be understood that in a bright environment, the pupil of the human eye will constrict, reducing the amount of light entering the eye, and the sensitivity of the visual system to brightness changes will relatively increase. At this time, the brightness difference between different regions of the display screen is more likely to be perceived. In a dark environment, the pupil of the human eye will dilate to receive more light, and the sensitivity to brightness differences will decrease, making it more difficult to perceive the subtle brightness changes in different regions of the display screen. Therefore, through the brightness deviation coefficient, the recognition situation of the human eye to the display screen brightness difference under different ambient brightnesses is analyzed to ensure different regional merging strategies, ensuring the accuracy of regional merging and avoiding excessive degradation of the image display effect caused by regional merging.

[0181] Obtain the information of the content to be displayed, where the information of the content to be displayed includes the image information and video data to be displayed on the LED display screen;

[0182] According to the information of the content to be displayed and based on the optical flow method, obtain the pixel movement speed information, where the pixel movement speed information represents the movement speed of the same pixel point in the image;

[0183] Obtain the display screen refresh rate setting information according to the pixel movement speed information;

[0184] Specifically, obtaining the display screen refresh rate setting information according to the pixel movement speed information specifically includes:

[0185] Obtain the basic refresh rate information of the display screen according to the LED display screen structure information;

[0186] Based on the analysis of the application scenario of the LED display screen, obtain the visual angle information and the viewing distance information. The visual angle information represents the minimum resolvable angle of the LED display screen, and the viewing distance information represents the viewing distance when the LED display screen is applied;

[0187] Obtain the visual resolution limit value according to the visual angle information and the viewing distance information;

[0188] Obtain the pixel movement speed threshold according to the visual resolution limit value and the basic refresh rate information of the display screen;

[0189] Judge whether to adjust the refresh rate of the display screen according to the pixel movement speed information and the pixel movement speed threshold. If not, keep the basic refresh rate of the display screen unchanged. If so, obtain the target refresh rate information of the display screen according to the pixel movement speed information and the visual resolution limit value;

[0190] Obtain the display screen refresh rate setting information according to the target refresh rate information of the display screen;

[0191] Among them, the visual resolution limit value is specifically:

[0192]

[0193] In the formula, is the visual resolution limit value, is the viewing distance, is the visual angle;

[0194] The pixel movement speed threshold is specifically:

[0195]

[0196] In the formula, is the pixel movement speed threshold, is the basic refresh rate of the display screen;

[0197] The target refresh rate of the display screen is specifically:

[0198]

[0199] In the formula, is the target refresh rate of the display screen, is the pixel moving speed, represents the maximum refresh rate of the display screen.

[0200] In this solution, by analyzing the application scenarios of the LED display screen, the visual angle information and the viewing distance information are obtained. According to the visual angle information and the viewing distance information, the visual resolution limit value is obtained. According to the visual resolution limit value and the basic refresh rate information of the display screen, the pixel moving speed threshold is obtained. According to the pixel moving speed information and the pixel moving speed threshold, it is judged whether to adjust the refresh rate of the display screen, which improves the image fluency, ensures the stability and reliability of the display screen. For fast-moving images, the refresh rate is increased to reduce the ghosting phenomenon and ensure the image fluency. For static images, the refresh rate is appropriately reduced to save energy.

[0201] In this embodiment, the visual angle represents the minimum resolvable angle when the human eye views the LED display screen, and the viewing distance represents the distance between the user and the LED display screen in the conventional application environment of the LED display screen.

[0202] Adjust the display screen according to the display screen refresh rate setting information and the display screen brightness adjustment information.

[0203] Referring to Figure 6 As shown, further, in combination with the above-mentioned intelligent control method for LED display screens based on feature information recognition, an intelligent control system for LED display screens based on feature information recognition is proposed, including:

[0204] The main control module is used to obtain the ambient brightness adjustment range information according to the color coordinate distance information and the color coordinate distance threshold, match the ambient brightness test set with the corresponding best brightness information of the display screen to obtain the display screen brightness adjustment data set, train the existing brightness adjustment model according to the display screen brightness adjustment data set to obtain the display screen brightness adjustment model, divide the display screen into regions to obtain the ambient brightness information of the display screen regions, obtain the display screen brightness adjustment information according to the combined region display screen brightness information, judge whether to adjust the refresh rate of the display screen according to the pixel moving speed information and the pixel moving speed threshold, obtain the target refresh rate information of the display screen according to the pixel moving speed information and the visual resolution limit value, and obtain the display screen refresh rate setting information according to the target refresh rate information of the display screen;

[0205] The information acquisition module is used to obtain the LED display screen structure information, the sensor structure information and the display structure information, obtain the ambient light information according to the sensor structure information, obtain the maximum brightness information and the minimum brightness information of the display screen according to the display structure information, obtain the information of the content to be displayed, and obtain the pixel moving speed information based on the optical flow method according to the information of the content to be displayed;

[0206] A display screen test module, which is used to perform image display on an LED display screen based on color test image information. Taking the maximum brightness information and the minimum brightness information of the display screen as a reference, using an external light source as the ambient brightness source, adjusting the ambient brightness, obtaining image color display data, obtaining color display coordinate information based on the color space coordinate system according to the image color display data, obtaining color coordinate distance information according to the color display coordinate information and the standard color gamut reference coordinate information, performing image display on the color test image based on the LED display screen according to the ambient brightness test set, obtaining color display test data under different ambient brightnesses, obtaining color display test coordinate information based on the color space coordinate system according to the color display test data, and obtaining color test coordinate distance information according to the color display test coordinate information and the standard color gamut reference coordinate information;

[0207] An evaluation module, which is used to obtain conventional ambient brightness information according to the LED display screen structure information, obtain an ambient brightness difference coefficient according to the ambient brightness adjustment range information and the conventional ambient brightness information, obtain an ambient brightness reference quantity according to the ambient brightness difference coefficient, obtain a brightness deviation coefficient according to the ambient brightness information, and obtain a brightness recognition feature value according to the brightness deviation coefficient and the display screen brightness information.

[0208] A main control module, specifically including:

[0209] A control unit, which is used to divide the display screen into regions, obtain the ambient brightness information of the display screen regions, obtain the display screen brightness adjustment information according to the combined region display screen brightness information, judge whether to adjust the display screen refresh rate according to the pixel movement speed information and the pixel movement speed threshold, obtain the display screen target refresh rate information according to the pixel movement speed information and the visual resolution limit value, and obtain the display screen refresh rate setting information according to the display screen target refresh rate information;

[0210] An information receiving unit, which interacts with the information acquisition module and the display screen test module, and is used to receive data and transmit it to the model training unit;

[0211] A model training unit, which is used to obtain the ambient brightness adjustment range information according to the color coordinate distance information and the color coordinate distance threshold, match the ambient brightness test set with the corresponding best display screen brightness information, obtain the display screen brightness adjustment data set, and train the existing brightness adjustment model according to the display screen brightness adjustment data set to obtain the display screen brightness adjustment model.

[0212] An information acquisition module, specifically including:

[0213] A first acquisition unit, which is used to acquire the LED display screen structure information, the sensor structure information, and the display structure information, and acquire the ambient light information according to the sensor structure information;

[0214] A second acquisition unit, which is used to acquire the maximum brightness information and the minimum brightness information of the display screen according to the display structure information, acquire the information of the content to be displayed, and acquire the pixel movement speed information based on the optical flow method according to the information of the content to be displayed.

[0215] The display screen test module specifically includes:

[0216] A first test unit, which is used to perform image display on the LED display screen based on the color test image information, use the maximum brightness information and the minimum brightness information of the display screen as a reference, take the external light source as the ambient brightness source, adjust the ambient brightness, acquire the image color display data, and acquire the color display coordinate information based on the color space coordinate system according to the image color display data. According to the color display coordinate information and the standard color gamut reference coordinate information, acquire the color coordinate distance information;

[0217] A second test unit, which is used to perform image display on the color test image based on the LED display screen according to the ambient brightness test set, obtain the color display test data under different ambient brightnesses, acquire the color display test coordinate information based on the color space coordinate system according to the color display test data, and acquire the color test coordinate distance information according to the color display test coordinate information and the standard color gamut reference coordinate information.

[0218] In summary, the advantages of the present invention are as follows: By using the maximum brightness information and the minimum brightness information of the display screen, the ambient brightness adjustment range information is acquired. By analyzing the ambient brightness adjustment range information, the adjustable ambient brightness range of the display screen is analyzed, which improves the display screen brightness adjustment efficiency. By using the ambient brightness test set, the display screen brightness adjustment model is acquired, which improves the accuracy of the display screen brightness adjustment. By merging the areas where the display screen brightness difference is less than the brightness recognition eigenvalue, the display screen merged area information is acquired, which avoids the reduction of the visual effect caused by the mismatch with the ambient brightness when directly adjusting the overall brightness of the display screen, and at the same time reduces the image display effect difference caused by the display screen area brightness difference. By analyzing the pixel movement speed information, the display screen refresh rate is analyzed, which improves the image fluency and ensures the stability and reliability of the display screen.

[0219] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, various changes and improvements will occur to the present invention, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent control method for an LED display screen based on feature information recognition, characterized in that, Including: Obtain the LED display screen structure information, where the LED display screen structure information includes sensor structure information and display structure information; According to the sensor structure information, obtain the ambient light information, and the ambient light information represents the ambient light condition corresponding to the LED display screen area; According to the display structure information, obtain the maximum brightness information and the minimum brightness information of the display screen; According to the maximum brightness information and the minimum brightness information of the display screen, obtain the ambient brightness adjustment range information; According to the ambient brightness adjustment range information, obtain the ambient brightness test set; According to the ambient brightness test set, obtain the display screen brightness adjustment model; According to the display screen brightness adjustment model and the ambient light information, obtain the display screen brightness adjustment information; Obtain the information of the content to be displayed, where the information of the content to be displayed includes the image information and video data to be displayed on the LED display screen; According to the information of the content to be displayed, based on the optical flow method, obtain the pixel movement speed information, and the pixel movement speed information represents the movement speed of the same pixel point in the image; According to the pixel movement speed information, obtain the display screen refresh rate setting information; According to the display screen refresh rate setting information and the display screen brightness adjustment information, adjust the display screen; The obtaining the ambient brightness adjustment range information according to the maximum brightness information and the minimum brightness information of the display screen specifically includes: According to the LED display screen structure information, obtain the standard color gamut information of the display screen; According to the standard color gamut information of the display screen, obtain the standard color gamut reference coordinate information, and the standard color gamut reference coordinate information represents the coordinates of the standard color gamut reference color of the display screen in the color space coordinate system; Obtain the color test image information, and the color test image is a display screen test image of three reference colors of red, green, and blue; According to the color test image information, perform image display based on the LED display screen; Taking the maximum brightness information and the minimum brightness information of the display screen as a reference, using the external light source as the ambient brightness source, adjust the ambient brightness, and obtain the image color display data; Based on the color space coordinate system, according to the image color display data, obtain the color display coordinate information; According to the color display coordinate information and the standard color gamut reference coordinate information, obtain the color coordinate distance information; Based on the recognition and analysis of the color difference of the human eye, obtain the color coordinate distance threshold; According to the maximum brightness information of the display screen, set the LED display screen to the maximum brightness; Increase the ambient brightness based on the external light source until the color coordinate distance exceeds the color coordinate distance threshold, and use the ambient brightness at this time as the maximum adjustable ambient brightness; According to the minimum brightness information of the display screen, set the LED display screen to the minimum brightness; Reduce the ambient brightness based on the external light source until the color coordinate distance exceeds the color coordinate distance threshold, and use the ambient brightness at this time as the minimum adjustable ambient brightness; According to the maximum adjustable ambient brightness and the minimum adjustable ambient brightness, obtain the ambient brightness adjustment range information; Wherein, the color coordinate distance is: where E is the color coordinate distance, represents the color display coordinates of the i-th reference color, represents the standard color gamut reference coordinates of the i-th reference color.

2. The intelligent control method for an LED display screen based on feature information recognition according to claim 1, wherein, The obtaining the display screen brightness adjustment model according to the ambient brightness test set specifically includes: Obtain the conventional ambient brightness information according to the LED display structure information, where the conventional ambient brightness information represents the average ambient brightness in the conventional application environment of the LED display; Obtain the ambient brightness difference coefficient according to the ambient brightness adjustment range information and the conventional ambient brightness information; Obtain the ambient brightness reference quantity according to the ambient brightness difference coefficient; Use the ambient brightness reference quantity as the ambient brightness difference value to divide the ambient brightness adjustment range, and obtain the ambient brightness test set, where the ambient brightness test set includes multiple ambient brightness data, and the difference between adjacent ambient brightnesses is the ambient brightness reference quantity; Among them, if the environmental brightness difference coefficient , then the environmental brightness reference quantity is . If or , then the environmental brightness reference quantity is ; Obtain the color test image information and the standard color gamut reference coordinate information; Based on the ambient brightness test set, display the color test image on the LED display to obtain the color display test data under different ambient brightnesses; Based on the color space coordinate system, obtain the color display test coordinate information according to the color display test data; Obtain the color test coordinate distance information according to the color display test coordinate information and the standard color gamut reference coordinate information; Adjust the display brightness until the color test coordinate distance reaches the minimum, and obtain the optimal display brightness information corresponding to the ambient brightness; Match the ambient brightness test set with the corresponding optimal display brightness information to obtain the display brightness adjustment data set; Train the existing brightness adjustment model according to the display brightness adjustment data set to obtain the display brightness adjustment model; The calculation formula of the ambient brightness difference coefficient is: In the formula, is the environmental brightness difference coefficient, is the conventional environmental brightness, is the maximum adjustable environmental brightness in the environmental brightness adjustment range, is the minimum adjustable environmental brightness in the environmental brightness adjustment range; [[ID=I2]]The display brightness adjustment model is specifically: Where L is the display brightness, represents the optimal brightness of the display corresponding to when the ambient brightness is is the ambient brightness, represents the brightness change coefficient, where if , then , if , then . is the model feature coefficient, is the correction term.

3. The intelligent control method for an LED display screen based on feature information recognition according to claim 1, wherein The obtaining of the display brightness adjustment information according to the display brightness adjustment model and the ambient light information specifically includes: Obtain the ambient brightness information according to the ambient light information; Divide the display into regions, and divide the display regions with the same ambient brightness into the same region to obtain the display region ambient brightness information; Based on the display brightness adjustment model, obtain the display brightness information corresponding to the ambient brightness of each region according to the display region ambient brightness information; Obtain the brightness deviation coefficient according to the ambient brightness information; Obtain the brightness recognition characteristic value according to the brightness deviation coefficient and the display brightness information; According to the display brightness information, merge the regions where the display brightness difference is less than the brightness recognition characteristic value to obtain the display merged region information, and use the average display brightness in each display merged region as the display brightness of the display merged region; Obtain the merged region display brightness information according to the display merged region information; Obtain the display brightness adjustment information according to the merged region display brightness information, where the display brightness adjustment information is used to adjust the display brightness; Among them, the calculation formula of the brightness deviation coefficient is: where k is the brightness deviation coefficient, is the maximum ambient brightness of the display screen area, is the minimum ambient brightness of the display screen area, is the maximum adjustable ambient brightness in the ambient brightness adjustment range, is the minimum adjustable ambient brightness in the ambient brightness adjustment range; The brightness recognition characteristic value is specifically: In the formula, is the brightness recognition feature value, is the maximum brightness of the display screen corresponding to the ambient brightness of the display screen area.

4. The intelligent control method of an LED display screen based on feature information recognition according to claim 1, wherein The obtaining of the display refresh rate setting information according to the pixel movement speed information specifically includes: Obtain the display basic refresh rate information according to the LED display structure information; Based on the analysis of the application scenarios of the LED display screen, obtain the visual angle information and the viewing distance information. The visual angle information represents the minimum resolvable angle of the LED display screen, and the viewing distance information represents the viewing distance when the LED display screen is applied; According to the visual angle information and the viewing distance information, obtain the visual resolution limit value; According to the visual resolution limit value and the basic refresh rate information of the display screen, obtain the pixel movement speed threshold; According to the pixel movement speed information and the pixel movement speed threshold, determine whether to adjust the refresh rate of the display screen. If not, keep the basic refresh rate of the display screen unchanged. If so, according to the pixel movement speed information and the visual resolution limit value, obtain the target refresh rate information of the display screen; According to the target refresh rate information of the display screen, obtain the refresh rate setting information of the display screen; Among them, the visual resolution limit value is specifically: In the formula, is the visual resolution limit value, is the observation distance, is the visual angle; The pixel movement speed threshold is specifically: In the formula, is the pixel movement speed threshold, is the basic refresh rate of the display screen; The target refresh rate of the display screen is specifically: In the formula, is the target refresh rate of the display screen, is the pixel movement speed, represents the maximum refresh rate of the display screen.

5. An intelligent control system for an LED display screen based on feature information recognition, which is used to implement the control method described in any one of claims 1-4, and is characterized in that, Including: The main control module is used to obtain the ambient brightness adjustment range information according to the color coordinate distance information and the color coordinate distance threshold, match the ambient brightness test set with the corresponding best brightness information of the display screen to obtain the display screen brightness adjustment data set, train the existing brightness adjustment model according to the display screen brightness adjustment data set to obtain the display screen brightness adjustment model, divide the display screen into regions to obtain the ambient brightness information of the display screen regions, obtain the display screen brightness adjustment information according to the combined region display screen brightness information, determine whether to adjust the refresh rate of the display screen according to the pixel movement speed information and the pixel movement speed threshold, obtain the target refresh rate information of the display screen according to the pixel movement speed information and the visual resolution limit value, and obtain the refresh rate setting information of the display screen according to the target refresh rate information of the display screen; The information acquisition module is used to acquire the LED display screen structure information, the sensor structure information and the display structure information, obtain the ambient light information according to the sensor structure information, obtain the maximum brightness information and the minimum brightness information of the display screen according to the display structure information, obtain the content information to be displayed, and obtain the pixel movement speed information based on the optical flow method according to the content information to be displayed; The display screen test module is used to perform image display on the LED display screen based on the color test image information, take the maximum brightness information and the minimum brightness information of the display screen as the benchmark, use the external light source as the ambient brightness source to adjust the ambient brightness, obtain the image color display data, obtain the color display coordinate information based on the color space coordinate system according to the image color display data, obtain the color coordinate distance information according to the color display coordinate information and the standard color gamut reference coordinate information, perform image display on the color test image based on the LED display screen according to the ambient brightness test set to obtain the color display test data under different ambient brightnesses, obtain the color display test coordinate information based on the color space coordinate system according to the color display test data, and obtain the color test coordinate distance information according to the color display test coordinate information and the standard color gamut reference coordinate information; An evaluation module, which is used to obtain the conventional ambient brightness information according to the LED display structure information, obtain the ambient brightness difference coefficient according to the ambient brightness adjustment range information and the conventional ambient brightness information, obtain the ambient brightness reference quantity according to the ambient brightness difference coefficient, obtain the brightness deviation coefficient according to the ambient brightness information, and obtain the brightness recognition characteristic value according to the brightness deviation coefficient and the display brightness information.

6. The intelligent control system for LED display screens based on feature information recognition according to claim 5, wherein The main control module specifically includes: A control unit, which is used to divide the display screen into regions, obtain the ambient brightness information of the display screen regions, obtain the display brightness adjustment information according to the combined region display brightness information, judge whether to adjust the display screen refresh rate according to the pixel movement speed information and the pixel movement speed threshold, obtain the display screen target refresh rate information according to the pixel movement speed information and the visual resolution limit value, and obtain the display screen refresh rate setting information according to the display screen target refresh rate information; An information receiving unit, which interacts with the information acquisition module and the display screen test module, and is used to receive data and transmit it to the model training unit; A model training unit, which is used to obtain the ambient brightness adjustment range information according to the color coordinate distance information and the color coordinate distance threshold, match the ambient brightness test set with the corresponding display screen optimal brightness information, obtain the display screen brightness adjustment data set, and train the existing brightness adjustment model according to the display screen brightness adjustment data set to obtain the display screen brightness adjustment model.

7. An intelligent control system for an LED display screen based on feature information recognition according to claim 5, characterized in that The information acquisition module specifically includes: A first acquisition unit, which is used to acquire the LED display structure information, the sensor structure information and the display structure information, and obtain the ambient light information according to the sensor structure information; A second acquisition unit, which is used to obtain the maximum brightness information and the minimum brightness information of the display screen according to the display structure information, obtain the information of the content to be displayed, and obtain the pixel movement speed information based on the optical flow method according to the information of the content to be displayed.

8. An intelligent control system for an LED display screen based on feature information recognition according to claim 5, characterized in that, The display screen test module specifically includes: A first test unit, which is used to perform image display on the LED display screen according to the color test image information, use the maximum brightness information and the minimum brightness information of the display screen as the reference, use the external light source as the ambient brightness source, adjust the ambient brightness, obtain the image color display data, obtain the color display coordinate information based on the color space coordinate system according to the image color display data, and obtain the color coordinate distance information according to the color display coordinate information and the standard color gamut reference coordinate information; A second test unit, which is used to perform image display on the color test image based on the LED display screen according to the ambient brightness test set, obtain the color display test data under different ambient brightnesses, obtain the color display test coordinate information based on the color space coordinate system according to the color display test data, and obtain the color test coordinate distance information according to the color display test coordinate information and the standard color gamut reference coordinate information.

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