A display screen dynamic splicing control system

Abstract

The application discloses a display screen dynamic splicing control system, and relates to the technical field of display screens, which comprises a parameter acquisition module, an image processing module, an image evaluation module, an image adjustment module, a region division module and a depth adjustment module. The parameter acquisition module is used for acquiring display parameters of the display screen. The image evaluation module is used for evaluating the display effect of the display screen and comprises a brightness evaluation unit, a color evaluation unit and a comprehensive evaluation unit. The region division module divides a plurality of sub-regions into foreground regions and background regions. The brightness and color consistency of the display screen can be adjusted to ensure the unity and coordination of the display content of multiple screens, improve the visual effect, and divide the foreground and background regions through the depth threshold value to enhance the stereoscopic visual effect of the image, highlight the foreground objects and increase the background depth. In combination with the screen quality score, the accuracy of the depth adjustment is optimized, and the overall viewing experience and visual effect are further improved.

Description

Technical Field

[0001] This invention relates to the field of display screen technology, specifically to a dynamic splicing control system for display screens. Background Technology

[0002] A video wall is a large-screen display device composed of multiple LCD monitors. Through special splicing technology, it seamlessly connects multiple LCD screens to form a unified display screen. Each video wall unit can be used individually as a monitor or combined to create a super-large screen. Due to its superior performance and reasonable price, video wall systems are widely welcomed both domestically and internationally. They are commonly used in various settings such as security monitoring, advertising, exhibitions, command and dispatch, conference rooms, and school classrooms, and are typically composed of multiple video wall units.

[0003] Currently, even displays from the same brand can exhibit display deviations. When multiple displays are combined into a large screen, these deviations become more pronounced, causing visual conflicts in the images, reducing the overall visual effect, and impacting the viewer's experience. Furthermore, when displaying 3D effects, adjustments are typically made based on physical depth data, neglecting the display quality itself and the influence of different display areas. This results in poor depth adjustment accuracy and reduces the 3D visual effect. Summary of the Invention

[0004] The purpose of this invention is to provide a dynamic splicing control system for displays, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides a dynamic splicing control system for a display screen, comprising a parameter acquisition module, an image processing module, an image evaluation module, an image adjustment module, a region division module, and a depth adjustment module;

[0006] The image processing module is used to receive image data from an external signal source and send the image data to the display screen for display; the parameter acquisition module is used to acquire the display parameters of the display screen.

[0007] The image evaluation module is used to evaluate the display effect of the display screen, including a brightness evaluation unit, a color evaluation unit, and a comprehensive evaluation unit;

[0008] The brightness evaluation unit is used to extract brightness features from display parameters and analyze them in combination with multiple displays to obtain a brightness consistency score. The color evaluation unit is used to extract color features from display parameters and analyze them in combination with different colors to obtain a color consistency score. The comprehensive evaluation unit is used to combine the brightness consistency score and the color consistency score to obtain a screen quality score.

[0009] The image adjustment module is used to adjust the display screen according to the brightness consistency score and the color consistency score to ensure display quality;

[0010] Multiple displays are spliced ​​together to form a display area. The area division module first divides the display area into several sub-areas, each sub-area including several pixels. Then, it extracts the pixel depth features from the display parameters and divides the several sub-areas into a foreground area and a background area based on the depth features.

[0011] The depth adjustment module adjusts the foreground and background areas separately by combining screen quality scores to enhance the stereoscopic display effect.

[0012] Optionally, the brightness evaluation unit is used to extract the i-th display screen brightness value L from the display parameters. i Average brightness of all displays (L) avg And the maximum brightness L among all displays max The minimum brightness of all displays, L min The maximum value L among all display screen brightness max The minimum brightness of all displays, L min The maximum brightness difference feature is obtained by subtraction, and then the brightness value L of the i-th display screen is... i Compared with the average brightness of all displays L avg The average brightness difference feature is obtained by subtracting the two features. The brightness consistency score is obtained by comparing the average brightness difference feature with the maximum brightness difference feature.

[0013] Optionally, the color evaluation unit is used to extract display screen color channel information from display parameters. The display screen color channel information includes RGB three channels, and the average value C of the j-th color channel of all displays is obtained from the RGB three channels. avg,j The value C of the i-th display in the j-th color channel ij And the maximum color value difference, the maximum color value difference is obtained by setting the maximum value C of all color channels of the display screen. max The minimum value C of all display color channels min Subtracting the values, we get the value C of the i-th display screen in the j-th color channel. ij The average value C of the j-th color channel of all displays avg,j The average color value difference feature is obtained by subtracting the two values. The color consistency score is obtained by comparing the average color value difference feature with the maximum color value difference.

[0014] Specifically, after obtaining the brightness consistency score and color consistency score, the display deviation of each display screen can be analyzed. The display screen can then be adjusted through the image adjustment module to ensure the consistency of each display screen, reduce display deviation, and improve the overall visual effect and viewing comfort.

[0015] Optionally, the comprehensive evaluation unit obtains a screen quality score by weighted summing of the brightness consistency score and the color consistency score, so as to intuitively understand the display effect of each display screen.

[0016] Optionally, the depth features of each pixel in the sub-region are combined and analyzed to obtain the average depth information of the sub-region. By analyzing the depth features of the pixels in each sub-region, the maximum depth value D is obtained. max and minimum depth value D min The region division module sets a depth threshold D for the average depth information of the sub-region. th When the average depth information of the sub-region is greater than the depth threshold D th When the average depth information of the sub-region is less than or equal to the depth threshold D, the sub-region is determined to be a background region. th When this happens, the sub-region is determined to be the foreground region.

[0017] Optionally, when adjusting the foreground region, the depth adjustment module compares the average depth information of the sub-region with the maximum depth value D. max The foreground adjustment features are obtained by comparison, and then the screen quality score, foreground adjustment features and sub-region average depth information are combined and analyzed to obtain the depth features after foreground adjustment.

[0018] When adjusting the background area, first set the maximum depth value D. max Subtracting the average depth information of the sub-region yields the background depth difference feature. This background depth difference feature is then compared with the maximum depth value D. max The background adjustment features are obtained by comparison, and then the screen quality score, background adjustment features and sub-region average depth information are combined to obtain the background adjustment depth features.

[0019] Optionally, the image processing module includes an interface unit and a signal conversion unit.

[0020] Optionally, the parameter acquisition module includes a temperature sensing unit for acquiring temperature data from the display screen in real time.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] I. This invention improves the brightness consistency of each display screen by comparing its brightness with the overall brightness and adjusting it accordingly. Adjusting brightness consistency reduces brightness differences between displays, making the content displayed on multiple screens appear more unified and harmonious, avoiding visual jarring and ensuring the quality of seamless display between multiple screens. Furthermore, by comparing the color characteristics of each display screen with the overall brightness and adjusting it accordingly, the color consistency of each display screen is improved. Adjusting color consistency ensures that all displays display uniform colors, thereby enhancing the realism and accuracy of the displayed image. Combined with brightness adjustment, this improves the overall visual effect.

[0023] Second, this invention divides the foreground and background regions using a depth threshold. Compared to global adjustment, enhancing the depth of the foreground region allows for more precise highlighting of objects that need to be focused on. Increasing the depth of the background region makes objects in the background appear farther away from the observer, thereby increasing the sense of depth and making foreground objects stand out more, enhancing the overall sense of space. By decreasing the depth value of the foreground region and increasing the depth value of the background region, the depth difference between the foreground and background in the image is strengthened. The adjusted effect allows viewers to more intuitively perceive the layering of the image, thereby improving the overall depth perception and sense of space, enhancing the naked-eye stereoscopic visual effect, and introducing screen quality scoring. By fully considering the impact of screen quality itself on depth adjustment, the accuracy of depth adjustment is improved, further enhancing the overall visual effect and viewing experience. Attached Figure Description

[0024] Figure 1 This is a block diagram of the system modules of the present invention;

[0025] Figure 2 This is a flowchart of the image evaluation and adjustment process of the present invention. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] For examples, please refer to Figure 1 and Figure 2 This embodiment provides a dynamic splicing control system for a display screen, including a parameter acquisition module, an image processing module, an image evaluation module, an image adjustment module, a region division module, and a depth adjustment module;

[0028] The image processing module is used to receive image data from an external signal source and send the image data to the display screen for display. The parameter acquisition module is used to acquire the display parameters of the display screen.

[0029] The parameter acquisition module includes a temperature sensing unit, which is used to acquire the temperature data of the display screen in real time. During the actual operation of the display, the temperature data of each display screen is acquired through the temperature sensing unit. The administrator can view the temperature of each display screen through the background. If the temperature exceeds the design limit, it can be dealt with in time to reduce losses.

[0030] The image processing module includes an interface unit and a signal conversion unit;

[0031] The interface unit includes HDMI, DisplayPort, and VGA interfaces to ensure compatibility with different types of display devices and signal sources. The signal conversion unit includes analog-to-digital converters and digital-to-analog converters to convert analog signals into digital signals or digital signals into a format suitable for the display screen.

[0032] The image evaluation module is used to evaluate the display effect of the screen, including a brightness evaluation unit, a color evaluation unit, and a comprehensive evaluation unit;

[0033] The brightness evaluation unit is used to extract brightness features from display parameters and analyze them in combination with multiple displays to obtain a brightness consistency score. The color evaluation unit is used to extract color features from display parameters and analyze them in combination with different colors to obtain a color consistency score. The comprehensive evaluation unit is used to combine the brightness consistency score and the color consistency score to obtain a screen quality score.

[0034] The image adjustment module is used to adjust the display screen based on the brightness consistency score and color consistency score to ensure display quality;

[0035] Multiple displays are spliced ​​together to form a display area. The area division module first divides the display area into several sub-areas, each containing several pixels. Then, it extracts the pixel depth features from the display parameters and divides the sub-areas into foreground and background areas based on the depth features.

[0036] The depth adjustment module adjusts the foreground and background areas separately by combining screen quality scores to enhance the stereoscopic display effect.

[0037] More specifically, in this embodiment: after the display screens are spliced, the image processing module first receives image data from an external signal source and sends the image data to the display screen for display. The parameter acquisition module collects the display parameters of the display screen. Then, the brightness evaluation unit in the image evaluation module analyzes the brightness effect of the display screen in conjunction with the display parameters to obtain a brightness consistency score. Next, the color evaluation unit analyzes the color effect of the display screen in conjunction with the display parameters to obtain a color consistency score. After obtaining the brightness consistency score and the color consistency score, the display deviation of each display screen can be analyzed. If the deviation is too large, it means that the brightness or color difference of this display screen is large compared with other display screens. When actually viewed, the overall screen is unevenly bright or dark, or there is color conflict. At this time, the image adjustment module adjusts the display screen according to the brightness consistency score and the color consistency score to ensure the consistency of each display screen, reduce display deviation, and improve the overall visual effect and viewing comfort.

[0038] Then, the comprehensive evaluation unit combines the brightness consistency score and color consistency score to obtain the screen quality score, which quantifies the display quality of each display screen and provides an intuitive understanding of the display effect. Next, the area division module divides the entire screen into foreground and background areas. Finally, the depth adjustment module adjusts the foreground and background areas separately by combining the screen quality score. By fully considering the impact of screen quality itself on depth adjustment, the accuracy of depth adjustment is improved, thereby enhancing the stereoscopic display effect and further improving the viewing experience.

[0039] Furthermore, the brightness evaluation unit is used to extract the brightness value L of the i-th display screen from the display parameters. i Average brightness of all displays (L) avg And the maximum brightness L among all displays max The minimum brightness of all displays, L min The maximum value L among all display screen brightness max The minimum brightness of all displays, L min The maximum brightness difference feature is obtained by subtraction, and then the brightness value L of the i-th display screen is... i Compared with the average brightness of all displays L avg The average brightness difference feature is obtained by subtraction. The evaluation process of the brightness evaluation unit is as follows:

[0040]

[0041] Among them B i,S Score the brightness consistency of the i-th display screen;

[0042] L i This represents the brightness value of the i-th display screen.

[0043] L avg This represents the average brightness of all displays.

[0044] By subtracting the brightness value of a display from the average brightness of all displays, the difference between the current display and other displays can be assessed. The greater the difference, the more prominent the brightness of the display, that is, the more obvious the difference in brightness between the display and other displays.

[0045] L max This is the maximum brightness among all displays;

[0046] L min This is the minimum brightness among all displays;

[0047] By subtracting the minimum brightness of all displays from the maximum brightness of the display and then taking the absolute value, the score is ensured to be between 0 and 1, so that the comparison between each display can be made and the consistency of the current display brightness can be intuitively understood.

[0048] Specifically, by calculating and standardizing the brightness differences across all displays, the resulting brightness consistency score B for the i-th display is obtained. i,S The closer a value is to 1, the better the brightness consistency between displays, and vice versa.

[0049] Furthermore, the color evaluation unit is used to extract display screen color channel information from display parameters. This display screen color channel information includes RGB three channels, and the average value C of the j-th color channel of all displays is obtained from the RGB three channels. avg,j The value C of the i-th display in the j-th color channel ij And the maximum color value difference, the maximum color value difference is obtained by setting the maximum value C of all color channels of the display screen. max The minimum value C of all display color channels min Subtracting the values, we get the value C of the i-th display screen in the j-th color channel. ij The average value C of the j-th color channel of all displays avg,j The average color value difference characteristic is obtained by subtraction. The evaluation process of the color evaluation unit is as follows:

[0050]

[0051] Where C i,S Score the color consistency of the i-th display screen;

[0052] C ij This represents the value of the i-th display screen in the j-th color channel;

[0053] C avg,j The average value of the j-th color channel across all displays;

[0054] C max This is the maximum value for all color channels on all displays;

[0055] C min This is the minimum value for all color channels on all displays;

[0056] Specifically, by calculating the color difference between each display and other displays, the image performance of the displays can be analyzed, and the color consistency score C of the i-th display is obtained. i,S The closer a value is to 1, the better the color consistency of the display screen; conversely, the lower the value, the worse the color consistency.

[0057] The brightness consistency score B for the i-th display screen is obtained. i,S Color consistency score C with the i-th display screen i,S Then, the image adjustment module adjusts each display screen. First, it sets the brightness threshold Y1 and color threshold Y2. When the brightness consistency score of the i-th display screen is B... i,S Greater than the brightness threshold Y1 or the color consistency score C of the i-th display screen i,S When the value exceeds the color threshold Y2, adjustments are made as follows:

[0058]

[0059]

[0060] Where ΔL i Let be the brightness adjustment amount for the i-th display screen, given the brightness consistency score B for the i-th display screen. i,S The result is between 0 and 1, therefore an adjustment range needs to be set experimentally to adjust ΔL. i The numerical value is converted into a specific brightness adjustment value;

[0061] β is the brightness adjustment coefficient, which ranges from 0 to 1 and is used to control the brightness adjustment level.

[0062] Y1 is the brightness threshold;

[0063] B i,S Score the brightness consistency of the i-th display screen;

[0064] ΔC i For the color adjustment of the i-th display screen, similar to brightness adjustment, the adjustment range needs to be set experimentally, and ΔC will be used. i The numerical values ​​are converted into specific color adjustment values;

[0065] Y2 is the color threshold;

[0066] C i,S Score the brightness consistency of the i-th display screen;

[0067] γ is the color adjustment coefficient, ranging from 0 to 1, used to control the intensity of color adjustment;

[0068] Threshold settings can be achieved by comparing each display screen with known displays, taking into account actual viewing experience and specific parameter changes. For example, if the difference in brightness or color of the display screen is clearly visible to the naked eye, then adjustments need to be made. Thresholds are set based on this, and adjustments are made according to the difference between the display score and the threshold. This approach ensures the final display quality after the display screens are spliced ​​together, taking a practical approach.

[0069] Specifically, by comparing the brightness of each display with the overall brightness and adjusting it based on the comparison results, the brightness consistency of each display is improved. By adjusting the brightness consistency, the brightness difference between displays can be reduced, making the content displayed on multiple displays look more unified and coordinated, reducing display deviation, avoiding visual abruptness, ensuring seamless connection between multiple displays, and improving viewing comfort.

[0070] By comparing the color characteristics of each display with the overall picture and making adjustments based on the comparison results, the color consistency of each display is improved. Adjusting color consistency ensures that all displays show the same colors, thereby enhancing the realism and accuracy of the image. By adjusting the brightness and color of each display, the visual experience is further enhanced.

[0071] Furthermore, the comprehensive evaluation unit obtains the screen quality score by weighted summing of the brightness consistency score and the color consistency score. The comprehensive evaluation unit evaluation process is as follows:

[0072]

[0073] Where R i,s Rate the screen quality of the i-th display screen;

[0074] C i,S Score the color consistency of the i-th display screen;

[0075] W1 is the color influence coefficient;

[0076] B i,S Score the brightness consistency of the i-th display screen;

[0077] W2 is the brightness influence coefficient, W1+W2=1;

[0078] Specifically, by evaluating each display screen and digitally displaying the results, the working quality of each screen can be intuitively understood, facilitating subsequent adjustments and controls. By introducing color and brightness influence coefficients, adjustments can be made according to the user's actual needs in practical applications. If the user prioritizes brightness performance, the brightness influence coefficient can be increased while the color influence coefficient can be decreased, and vice versa. This allows the screen quality rating to adapt to different user needs, improving the accuracy of the rating for users and enabling subsequent adjustments and controls.

[0079] Furthermore, by combining and analyzing the depth features of each pixel in the sub-region, the average depth information of the sub-region is obtained. By analyzing the depth features of pixels in each sub-region, the maximum depth value D is obtained. max and minimum depth value D min The region division module sets a depth threshold D for the average depth information of the sub-region. th When the average depth information of the sub-region is greater than the depth threshold D th When the average depth information of the sub-region is less than or equal to the depth threshold D, the sub-region is determined to be a background region. th When this sub-region is determined to be a foreground region, the depth threshold setting process is as follows:

[0080]

[0081] Where D th Depth threshold;

[0082] D max This is the maximum depth value, including all sub-regions;

[0083] D min This is the minimum depth value, including all sub-regions;

[0084] α is the depth threshold adjustment coefficient, which ranges from 0 to 1. It is used to control the boundary between the foreground and background regions. If the depth threshold adjustment coefficient α is larger, more sub-regions will be classified as foreground regions. Conversely, if the depth threshold adjustment coefficient α is smaller, more sub-regions will be classified as background regions.

[0085] In a display image, the foreground region typically represents the area closer to the observer. These areas usually have smaller depth values, meaning they are closer to the viewpoint and require stronger depth adjustments to create greater parallax, thus highlighting objects in the image and increasing the foreground's three-dimensionality.

[0086] The background area represents the part farther away from the viewpoint. It has a larger depth value and requires less depth variation because excessive depth variation may destroy the realism of the space and does not need additional visual emphasis.

[0087] Specifically, the depth threshold adjustment coefficient α controls the proportion of the foreground and background areas, affecting the depth adjustment effect. Depending on the needs of different scenarios, the depth threshold adjustment coefficient α can be adjusted to flexibly adjust the size of the foreground and background areas, so that the display screen can obtain a more natural or realistic 3D effect.

[0088] Furthermore, when adjusting the foreground region, the depth adjustment module obtains foreground adjustment features by comparing the average depth information of the sub-region with the maximum depth information, and then combines the foreground adjustment features with the average depth information of the sub-region to obtain the depth features after foreground adjustment.

[0089] When adjusting the background area, the maximum depth information is first subtracted from the average depth information of the sub-region to obtain the background depth difference feature. The background depth difference feature is then compared with the maximum depth information to obtain the background adjustment feature. Finally, the screen quality score, the background adjustment feature, and the average depth information of the sub-region are combined for analysis to obtain the background depth feature after adjustment. When the sub-region is the foreground area, the adjustment process is as follows:

[0090]

[0091] Where R avg,s The average score is the overall screen quality score.

[0092] n is the number of displays;

[0093]

[0094] Where D adj,q (r) represents the adjusted depth value of the r-th sub-region. That is, when the r-th sub-region is the foreground region, the depth value of the region after depth adjustment is the depth value of all pixels in the region.

[0095] D avg (r) represents the average depth of the r-th sub-region;

[0096] θ1 is the foreground depth adjustment coefficient, used to control the depth adjustment intensity in the foreground region;

[0097] D max This is the maximum depth value, including all sub-regions;

[0098] For normalization, the average depth value of the sub-region is compared with the maximum depth value of the image, so that the depth adjustments of different regions can be compared under the same standard. This avoids uneven adjustment results due to large differences in the depth values ​​themselves, and makes the changes in depth values ​​more relative.

[0099] When the sub-region is the background region, the adjustment process is as follows:

[0100]

[0101] D adj,b (r) represents the adjusted depth value of the r-th sub-region. That is, when the r-th sub-region is the background region, the depth value of the region after depth adjustment is the adjustment of the depth values ​​of all pixels in the region.

[0102] D avg (r) represents the average depth of the r-th sub-region;

[0103] θ2 is the background area depth adjustment coefficient, used to control the depth adjustment level of the background area;

[0104] D max This is the maximum depth value, including all sub-regions;

[0105] Maximum depth value D max Subtract the average depth value D of the r-th sub-region avg (r) represents the depth of the background region and the maximum depth value D. max The greater the difference between them, the farther away the background area is;

[0106] W3 is the screen quality impact coefficient, which represents the impact of screen quality on depth adjustment, and its value ranges from 0 to 1.

[0107] R ide The overall screen ideal score, that is, the screen quality score under ideal conditions, is set to 1.

[0108] By incorporating screen quality scoring into the depth adjustment process, analysis can be performed based on the actual screen conditions, improving the accuracy of depth adjustment and thus further enhancing the visual effect of the display.

[0109] For the normalization operation, the difference between the background region depth and the maximum depth value is converted into a ratio, making the background depth adjustment smoother and more relative, and making the depth adjustment of different sub-regions more consistent.

[0110] The display parameters of the screen are acquired in real time through the parameter acquisition module, which enables real-time analysis of the screen image and dynamic adjustment based on changes in the screen image.

[0111] Specifically, depth adjustment in the foreground area typically involves reducing the depth to bring objects closer to the observer, making them appear more three-dimensional. Compared to global adjustment, enhancing the depth of the foreground area allows for more precise highlighting of the objects that need to be focused on. Increasing the depth of the background area makes objects in the background appear farther away from the observer, thereby increasing the sense of depth and making foreground objects stand out more, enhancing the overall sense of space. By reducing the depth value of the foreground area and increasing the depth value of the background area, the depth difference between the foreground and background in the image is strengthened. The adjusted effect allows viewers to more intuitively perceive the layering of the image, thereby improving the overall depth perception and sense of space, and enhancing the naked-eye stereoscopic vision effect.

[0112] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dynamic splicing control system for display screens, characterized in that, It includes a parameter acquisition module, an image processing module, an image evaluation module, an image adjustment module, a region division module, and a depth adjustment module; The image processing module is used to receive image data from an external signal source and send the image data to the display screen for display; the parameter acquisition module is used to acquire the display parameters of the display screen. The image evaluation module is used to evaluate the display effect of the display screen, including a brightness evaluation unit, a color evaluation unit, and a comprehensive evaluation unit; The brightness evaluation unit is used to extract brightness features from display parameters and analyze them in combination with multiple displays to obtain a brightness consistency score. The color evaluation unit is used to extract color features from display parameters and analyze them in combination with different colors to obtain a color consistency score. The comprehensive evaluation unit is used to combine the brightness consistency score and the color consistency score to obtain a screen quality score. The comprehensive evaluation unit obtains a screen quality score by weighted summing of the brightness consistency score and the color consistency score, providing a direct understanding of the display effect of each screen. The evaluation process of the comprehensive evaluation unit is as follows: ； Where R i,s Rate the screen quality of the i-th display screen; C i,S Score the color consistency of the i-th display screen; W1 is the color influence coefficient; B i,S Score the brightness consistency of the i-th display screen; W2 is the brightness influence coefficient, W1+W2=1; Furthermore, by introducing color influence coefficient W1 and brightness influence coefficient W2, adjustments can be made according to the actual needs of users in practical applications; The image adjustment module is used to adjust the display screen for the brightness consistency score and the color consistency score to ensure display quality; Multiple displays are spliced ​​together to form a display area. The area division module first divides the display area into several sub-areas, each sub-area including several pixels. Then, it extracts the pixel depth features from the display parameters and divides the several sub-areas into a foreground area and a background area based on the depth features. By combining and analyzing the depth features of each pixel in a sub-region, the average depth information of the sub-region is obtained. Furthermore, by analyzing the depth features of pixels within each sub-region, the maximum depth value D is obtained. max and minimum depth value D min The region division module sets a depth threshold D for the average depth information of the sub-region. th When the average depth information of the sub-region is greater than the depth threshold D th When the average depth information of the sub-region is less than or equal to the depth threshold D, the sub-region is determined to be a background region. th When this sub-region is determined to be a foreground region, the depth threshold setting process is as follows: ；； Where D th Depth threshold; D max This is the maximum depth value, including all sub-regions; D min This is the minimum depth value, including all sub-regions; The depth adjustment module adjusts the foreground and background areas separately by combining screen quality scores to enhance stereoscopic display; When adjusting the foreground region, the depth adjustment module compares the average depth information of the sub-region with the maximum depth value D. max The foreground adjustment features are obtained by comparison, and then the screen quality score, foreground adjustment features and sub-region average depth information are combined and analyzed to obtain the depth features after foreground adjustment. When the sub-region is the foreground region, the adjustment process is as follows: ；； Where R avg,s The average score is the overall screen quality score. n is the number of displays; ；； Where D adj,q (r) represents the adjusted depth value of the r-th sub-region. That is, when the r-th sub-region is the foreground region, the depth value of the region after depth adjustment is the depth value of all pixels in the region. D avg (r) represents the average depth of the r-th sub-region; θ1 is the foreground depth adjustment coefficient, used to control the depth adjustment intensity in the foreground region; D max This is the maximum depth value, including all sub-regions; When adjusting the background area, first set the maximum depth value D. max Subtracting the average depth information of the sub-region yields the background depth difference feature. This background depth difference feature is then compared with the maximum depth value D. max The background adjustment features are obtained by comparison. Then, the screen quality score, background adjustment features, and sub-region average depth information are combined and analyzed to obtain the background adjustment depth features. The adjustment process is as follows: ；； D adj,b (r) represents the adjusted depth value of the r-th sub-region. That is, when the r-th sub-region is the background region, the depth value of the region after depth adjustment is the adjustment of the depth values ​​of all pixels in the region. D avg (r) represents the average depth of the r-th sub-region; θ2 is the background area depth adjustment coefficient, used to control the depth adjustment level of the background area; D max This is the maximum depth value, including all sub-regions; Maximum depth value D max Subtract the average depth value D of the r-th sub-region avg (r) represents the depth of the background region and the maximum depth value D. max The differences between them; W3 is the screen quality impact factor, with a value ranging from 0 to 1; R ide The overall screen ideal score is the screen quality score under ideal conditions, and the value is 1.

2. The dynamic splicing control system for displays according to claim 1, characterized in that: The brightness evaluation unit is used to extract the brightness value L of the i-th display screen from the display parameters. i Average brightness of all displays (L) avg And the maximum brightness L among all displays max The minimum brightness of all displays, L min The maximum value L among all display screen brightness max The minimum brightness of all displays, L min The maximum brightness difference feature is obtained by subtraction, and then the brightness value L of the i-th display screen is... i Compared with the average brightness of all displays L avg The average brightness difference feature is obtained by subtracting the two features. The brightness consistency score is obtained by comparing the average brightness difference feature with the maximum brightness difference feature.

3. The display screen dynamic splicing control system according to claim 2, characterized in that: The color evaluation unit is used to extract display screen color channel information from display parameters. The display screen color channel information includes RGB three channels, and the average value C of the j-th color channel of all displays is obtained from the RGB three channels. avg,j The value C of the i-th display in the j-th color channel ij And the maximum color value difference, the maximum color value difference is obtained by setting the maximum value C of all color channels of the display screen. max The minimum value C of all display color channels min Subtracting the values, we get the value C of the i-th display screen in the j-th color channel. ij The average value C of the j-th color channel of all displays avg,j The average color value difference feature is obtained by subtracting the two values. The color consistency score is obtained by comparing the average color value difference feature with the maximum color value difference.

4. The display screen dynamic splicing control system according to claim 1, characterized in that: The image processing module includes an interface unit and a signal conversion unit.

5. The dynamic splicing control system for displays according to claim 1, characterized in that: The parameter acquisition module includes a temperature sensing unit, which is used to acquire the temperature data of the display screen in real time.

Images