WO2019001027A1 - 图像色偏补偿方法、装置及显示设备 - Google Patents

图像色偏补偿方法、装置及显示设备 Download PDF

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Publication number
WO2019001027A1
WO2019001027A1 PCT/CN2018/079584 CN2018079584W WO2019001027A1 WO 2019001027 A1 WO2019001027 A1 WO 2019001027A1 CN 2018079584 W CN2018079584 W CN 2018079584W WO 2019001027 A1 WO2019001027 A1 WO 2019001027A1
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image
color
pixel
display
compensation
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PCT/CN2018/079584
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English (en)
French (fr)
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周春苗
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京东方科技集团股份有限公司
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Priority to US16/308,175 priority Critical patent/US10770027B2/en
Publication of WO2019001027A1 publication Critical patent/WO2019001027A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
    • G09G3/003—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background to produce spatial visual effects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
    • H04N13/106—Processing image signals
    • H04N13/122—Improving the 3D impression of stereoscopic images by modifying image signal contents, e.g. by filtering or adding monoscopic depth cues
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0242—Compensation of deficiencies in the appearance of colours
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/12—Test circuits or failure detection circuits included in a display system, as permanent part thereof
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2380/00—Specific applications
    • G09G2380/08—Biomedical applications
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
    • G09G5/37—Details of the operation on graphic patterns
    • G09G5/377—Details of the operation on graphic patterns for mixing or overlaying two or more graphic patterns

Definitions

  • the present disclosure relates to an image color shift compensation method, apparatus, and display device.
  • 3D (three dimensional) technology currently has special applications in some places and fields. Especially with the improvement of smart medical display systems, 3D display is increasingly being applied to the medical industry. In terms of medical display, how to truly restore the operating environment is very important for viewers, especially medical personnel.
  • the 3D display in the related art inevitably causes color shift of the display due to factors such as differences in left and right eye images, thereby affecting the display effect of the 3D image.
  • an embodiment of the present disclosure provides an image color shift compensation method, including:
  • the 3D image signal to be output is compensated by the compensation color.
  • the step of determining a pixel having a color shift in the reference image as a target pixel includes:
  • each pixel in the selected display area or all display areas For each pixel in the selected display area or all display areas, detecting that each sub-pixel of the pixel displays a display image parameter of the 3D image, and using the detected display image parameter as an actual display image parameter;
  • the sub-pixel is a sub-pixel having a color shift, and the pixel to which the sub-pixel belongs is a target pixel
  • the reference image parameter includes a driving display panel displaying a theoretical output value of the reference image.
  • the step of compensating the 3D image signal to be output by using the compensation color comprises:
  • the color of the image signal of the target pixel after the superimposition processing is used as the color after the color shift compensation to drive the pixel to display the 3D image.
  • the display image parameters include chromaticity or gray scale.
  • the display panel is a polarized 3D display panel.
  • the reference image is a pure black image or a pure white image.
  • an image color shift compensation apparatus including:
  • a pixel determining circuit configured to drive the display panel to display the input 3D reference image, and determine a pixel having a color shift in the reference image as the target pixel;
  • a color shift value determining circuit configured to determine a color shift value of a display image of the target pixel for each target pixel according to the reference image
  • a compensation color determining circuit configured to determine an inverse color corresponding to the color shift value according to the reference image, and use the inverse color as a compensation color of the pixel;
  • a compensation circuit configured to compensate for the 3D image signal to be output using the compensation color.
  • the pixel determining circuit includes:
  • Detecting a sub-circuit configured to detect, for pixels in the selected display area or all display areas, display display image parameters of the 3D image for each sub-pixel of the pixel, and use the detected display image parameter as an actual display image parameter;
  • Comparing the sub-circuits configured to compare the actual display image parameters with reference image parameters
  • Determining a sub-circuit configured to determine, in a state where a difference between the actual display image parameter and the reference image parameter exceeds a selected threshold range, the sub-pixel is a sub-pixel having a color shift, and the sub-pixel belongs to The pixel is the target pixel;
  • the reference image parameter includes a driving display panel displaying a theoretical output value of the reference image.
  • the compensation circuit comprises:
  • Obtaining a sub-circuit configured to acquire a color of an image signal corresponding to the target pixel in the 3D image signal to be output, as a primary color
  • a superposition sub-circuit configured to superimpose a compensation color of the target pixel and a primary color of the target pixel
  • the compensation sub-circuit is configured to use the color of the image signal of the target pixel after the superimposition processing as the color after the color shift compensation to drive the pixel to display the 3D image.
  • the display image parameters include chromaticity or gray scale.
  • the display panel is a polarized 3D display panel.
  • the reference image is a pure black image or a pure white image.
  • an image color shift compensation apparatus including:
  • One or more processors where:
  • the processor is configured to execute an instruction to perform one or more of the image color shift compensation methods described above.
  • the image color shift compensation device further includes:
  • a memory coupled to the one or more processors, configured to store instructions executed by the processor, the instructions being executed by the processor to perform one or more of the image color shift compensation methods described above.
  • an embodiment of the present disclosure provides a display device, where the display device includes the image color shift compensation device described above.
  • FIG. 1 is a flowchart of an image color shift compensation method according to an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of chromatic aberration compensation according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of an image color shift compensation apparatus according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram of a pixel determination circuit according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of a compensation circuit according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of an image color shift compensation apparatus according to an embodiment of the present disclosure.
  • an image color shift compensation method includes:
  • Step 101 Input a 3D (three dimensional, 3D) reference image and drive the display panel to display the reference image, and determine to display the pixel with the color shift of the reference image as the target pixel.
  • 3D three dimensional, 3D
  • the target pixel may be determined as follows: for the pixels in the selected display area or all the display areas, detecting that each sub-pixel of the pixel displays a display image parameter of the 3D image, and The detected display image parameters are taken as actual display image parameters. The actual display image parameters are compared to the reference image parameters. Determining, in a state in which the difference between the actual display image parameter and the reference image parameter exceeds the selected threshold range, the sub-pixel is a sub-pixel having a color shift, and the pixel to which the sub-pixel belongs is a target pixel;
  • the reference image comprises an image of an image parameter that is known to be theoretically displayed.
  • the reference image comprises a pure black or pure white image, the reference image parameter comprising a theoretical output value of the drive display panel displaying the 3D reference image.
  • the reference image comprises a pure white image, the reference image parameters including its maximum gray level (R, G, B) being (255, 255, 255).
  • the selected display area and the selected threshold range may be arbitrarily set, and the display image parameter may include a chromaticity or a gray scale, which is not limited herein.
  • the display panel may be a polarized 3D display panel. Since the polarized 3D display panel performs interlaced interlaced display, it is possible to have sufficient time to compensate for the next frame 3D image.
  • Step 102 Determine, according to the reference image, a color shift value of a display image of the target pixel for each target pixel.
  • the pixel structure is made to have a color shift when displaying an image, and the color shift is independent of the content of the displayed image.
  • the color shift is uniform.
  • the color corresponds to display image parameters such as chromaticity, grayscale, brightness, and the like. Knowing the chromaticity of a pixel display image, you can get the corresponding grayscale, brightness, and color. Therefore, in the embodiment of the present disclosure, the color can be determined by determining the chromaticity, the gradation, the brightness, and the like. In the actual application process, the chromaticity and gradation of each pixel of the displayed image can be respectively detected by using a colorimeter, a gray scale tester, and a brightness meter, and colors, color shifts, and the like can be obtained.
  • a difference between the actual display image parameter and the reference image parameter may be used as a color shift value.
  • Step 103 Determine an inverse color corresponding to the color shift value according to the reference image, and use the inverse color as a compensation color of the pixel.
  • the primary color may be the color of the image signal corresponding to the target pixel in the 3D image signal to be output
  • the reverse color is the reverse color difference of the primary color with respect to the reference image
  • the color of a certain channel (sub-pixel) of the target pixel for example, red
  • the color is the primary color
  • the corresponding gray level is 170
  • the corresponding gray level of the reference image is 255.
  • Step 104 Compensate the 3D image signal to be output by using the compensation color.
  • a color of an image signal corresponding to the target pixel in the 3D image signal to be output is acquired as a primary color.
  • the compensation color of the target pixel and the primary color of the target pixel are superimposed, and the color of the image signal of the target pixel after the superimposition processing is used as the color after the color shift compensation to drive the pixel to display the 3D image.
  • the inverse color is determined according to the color shift value, and the reverse color is used as the compensation color to compensate the output 3D image signal, and thus, the embodiment of the present disclosure is utilized.
  • the solution improves the display of 3D images.
  • the cyan color is displayed in the edge pixel display area under the CCYX pixel structure as an example, and the inverse color difference compensation is performed under the 255 gray scale.
  • the sub-pixels A, B, and C of the target pixel have color shifts, and the colors of the corresponding image signals are red, green, and blue, respectively, and are set to the primary colors.
  • the actual grayscale values of red, green, and blue are 17,255,255, respectively.
  • the color matching program or the embedded color matching algorithm hardware circuit is used to modulate the values of the R, G, and B channels of the display target pixel position, so that the random color and the display color are visually consistent.
  • the color shift position RGB channel value is obtained, and the color shift pixel position is subjected to three primary color compensation adjustments by the channel value of the reverse color difference, thereby outputting a normal achromatic image.
  • the scheme of the embodiment of the present disclosure improves the display effect of the 3D image.
  • a target pixel (such as a pixel address) and a color shift value of the target pixel may be first determined, and an inverse color is determined according to the color shift value to perform color compensation using the reverse color.
  • the color compensation value corresponding to the reverse color and the pixel address of the target pixel are implanted into the chip.
  • the image color shift compensation apparatus of the embodiment of the present disclosure includes:
  • a pixel determining circuit 301 configured to determine a pixel having a color shift in the reference image as a target pixel after driving the display panel to display the 3D reference image;
  • a color shift value determining circuit 302 configured to determine a color shift value of a display image of the target pixel for each target pixel
  • the compensation color determining circuit 303 is configured to determine an inverse color corresponding to the color shift value, and use the inverse color as a compensation color of the pixel;
  • the compensation circuit 304 is configured to compensate for the 3D image signal to be output using the compensation color.
  • the pixel determining circuit 301 includes:
  • the detecting sub-circuit 3011 is configured to detect, for pixels in the selected display area or all display areas, display image parameters of the 3D image for each sub-pixel of the pixel, and use the detected display image parameters as actual display image parameters. ;
  • Comparing the sub-circuit 3012 configured to compare the actual display image parameter with a theoretical parameter of the reference image
  • Determining the sub-circuit 3013 configured to determine that the sub-pixel is a sub-pixel having a color shift, if the difference between the actual display image parameter and the theoretical parameter of the reference image exceeds a selected threshold range, the sub-pixel The pixel to which it belongs is the target pixel;
  • the theoretical parameter of the reference image comprises driving the display panel to display a theoretical output value of the 3D reference image.
  • the compensation circuit 304 includes:
  • the obtaining sub-circuit 3041 is configured to acquire a color of the image signal corresponding to the target pixel in the 3D image signal to be output as a primary color;
  • the superposition sub-circuit 3042 is configured to superimpose the compensation color of the target pixel and the primary color of the target pixel;
  • the compensation sub-circuit 3043 is configured to use the color of the image signal of the target pixel after the superimposition processing as the color after the color shift compensation to drive the pixel to display the 3D image.
  • the display image parameters include chrominance or grayscale.
  • the reverse color is determined according to the color shift value, and the 3D image signal to be output is compensated by using the reverse color as the compensation color, and therefore, the implementation is implemented by the present disclosure.
  • the solution of the example improves the display effect of the 3D image.
  • some embodiments of the present disclosure further provide an image color shift compensation apparatus 6 including: one or more processors 601 configured to execute an instruction to perform one of the image color shift compensation methods described above or Multiple steps.
  • the image color shift compensation device 6 further includes a memory 602, the processor 601 being coupled to the memory 602, configured to store instructions executed by the processor 601, the instructions being executed by the processor 601 to execute an image One or more steps in the color cast compensation method.
  • the processor 601 may be a central processing unit (CPU) or a field programmable logic array (FPGA) or a single chip microcomputer (MCU) or a digital signal processor (DSP) or an application specific integrated circuit (ASIC) or a graphics processing unit (GPU).
  • CPU central processing unit
  • FPGA field programmable logic array
  • MCU single chip microcomputer
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • GPU graphics processing unit
  • a logic computing device with data processing capabilities and/or program execution capabilities.
  • the memory 602 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM). , Erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Disk or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM Erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Disk Disk or Optical Disk.
  • the instructions include one or more processor operations defined by an instruction set architecture corresponding to the processor, the instructions being logically included and represented by one or more computer programs.
  • the image color shift compensation device 6 may further include a communication device, a transceiver device, etc., to connect various input devices (such as a user interface, a keyboard, etc.), various output devices (such as speakers, etc.) or with other components.
  • a communication device such as a Wi-Fi, a Wi-Fi, etc.
  • various input devices such as a user interface, a keyboard, etc.
  • various output devices such as speakers, etc.
  • the embodiment of the present disclosure further provides a display device including the image color shift compensation device shown in FIGS. 3 to 5 or the image color shift compensation device shown in FIG. 6.
  • the disclosed method and apparatus may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the circuit may be only a logical function division.
  • there may be another division manner for example, multiple circuits or components may be combined. Or it can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or circuit, and may be in an electrical, mechanical or other form.
  • each functional circuit in various embodiments of the present disclosure may be integrated in one processing circuit, or two or more circuits may be integrated in one circuit.
  • the integrated circuit described above can be implemented in the form of hardware such as a circuit or in the form of hardware plus software.
  • the integrated circuit described above in the form of software can be stored in a computer readable storage medium.
  • the software described above is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform some of the steps of the method of transmitting and receiving described in various embodiments of the present disclosure.

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Abstract

提供一种图像色偏补偿方法、装置及显示设备。该图像色偏补偿方法包括：输入3D参考图像并驱动显示面板显示参考图像，确定所述参考图像中具有色偏的像素作为目标像素；根据所述参考图像针对每一目标像素确定所述目标像素的显示图像的色偏值；根据所述参考图像确定所述色偏值对应的反色，将所述反色作为所述像素的补偿色；利用所述补偿色对待输出的3D图像信号进行补偿。

Description

图像色偏补偿方法、装置及显示设备
相关申请的交叉引用
本申请主张在2017年6月27日在中国提交的中国专利申请No.201710500112.7的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及一种图像色偏补偿方法、装置及显示设备。
背景技术
3D(three dimensional，三维)技术目前在一些场所和领域有着特殊的应用。特别是随着智慧医疗显示系统的完善，3D显示越来越多地被应用到医疗行业。在医疗显示方面，如何能够真实的还原操作环境，对于观看者特别是医务人员显得非常重要。
相关技术中的3D显示，由于左右眼图像的差异等因素难免会造成显示的色偏，从而影响了3D图像的显示效果。
发明内容
第一方面，本公开实施例提供一种图像色偏补偿方法，包括：
输入3D参考图像并驱动显示面板显示参考图像，确定所述参考图像中具有色偏的像素作为目标像素；
根据所述参考图像针对每一目标像素确定所述目标像素的显示图像的色偏值；
根据所述参考图像确定所述色偏值对应的反色，将所述反色作为所述像素的补偿色；
利用所述补偿色对待输出的3D图像信号进行补偿。
可选地，所述确定所述参考图像中具有色偏的像素作为目标像素的步骤，包括：
对于所选择的显示区域或全部显示区域中的像素，检测所述像素的每个 子像素显示3D图像的显示图像参数，并将检测到的显示图像参数作为实际显示图像参数；
将所述实际显示图像参数与参考图像参数进行比较；
在所述实际显示图像参数和所述参考图像参数的差值超过所选择的阈值范围的状态下，确定所述子像素为具有色偏的子像素，所述子像素所属的像素为目标像素，
其中，所述参考图像参数包括驱动显示面板显示所述参考图像的理论输出值。
可选地，所述利用所述补偿色对待输出的3D图像信号进行补偿的步骤，包括：
获取所述待输出的3D图像信号中对应于所述目标像素的图像信号的颜色，作为原色；
将所述目标像素的补偿色和所述目标像素的原色进行叠加处理；
将叠加处理后的所述目标像素的图像信号的颜色作为色偏补偿后的颜色，以驱动像素显示3D图像。
可选地，所述显示图像参数包括色度或灰阶。
可选地，所述显示面板为偏光式3D显示面板。
可选地，所述参考图像为纯黑色图像或纯白色图像。
第二方面，本公开的实施例提供一种图像色偏补偿装置，包括：
像素确定电路，配置成驱动显示面板显示输入的3D参考图像，确定所述参考图像中具有色偏的像素作为目标像素；
色偏值确定电路，配置成根据所述参考图像针对每一目标像素确定所述目标像素的显示图像的色偏值；
补偿色确定电路，配置成根据所述参考图像确定所述色偏值对应的反色，将所述反色作为所述像素的补偿色；
补偿电路，配置成利用所述补偿色对待输出的3D图像信号进行补偿。
可选地，所述像素确定电路包括：
检测子电路，配置成对于所选择的显示区域或全部显示区域中的像素，检测所述像素的每个子像素显示3D图像的显示图像参数，并将检测到的显 示图像参数作为实际显示图像参数；
比较子电路，配置成将所述实际显示图像参数与参考图像参数进行比较；
确定子电路，配置成在所述实际显示图像参数和所述参考图像参数的差值超过所选择的阈值范围的状态下，确定所述子像素为具有色偏的子像素，所述子像素所属的像素为目标像素；
其中，所述参考图像参数包括驱动显示面板显示所述参考图像的理论输出值。
可选地，所述补偿电路包括：
获取子电路，配置成获取所述待输出的3D图像信号中对应于所述目标像素的图像信号的颜色，作为原色；
叠加子电路，配置成将所述目标像素的补偿色和所述目标像素的原色进行叠加处理；
补偿子电路，配置成将叠加处理后的所述目标像素的图像信号的颜色作为色偏补偿后的颜色，以驱动像素显示3D图像。
可选地，所述显示图像参数包括色度或灰阶。
可选地，所述显示面板为偏光式3D显示面板。
可选地，所述参考图像为纯黑色图像或纯白色图像。
第三方面，本公开实施例提供一种图像色偏补偿装置，包括：
一个或多个处理器，其中：
所述处理器被配置为运行指令以执行上述的图像色偏补偿方法中的一个或多个步骤。
可选地，所述图像色偏补偿装置，还包括：
存储器，与所述一个或多个处理器连接，配置成存储由处理器运行的指令，所述指令被处理器运行时执行上述的图像色偏补偿方法中的一个或多个步骤。
第四方面，本公开实施例提供一种显示设备，所述显示设备包括上述的图像色偏补偿装置。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请中记载的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。以下附图并未刻意按实际尺寸等比例缩放绘制，重点在于示出本申请的主旨。
图1为本公开实施例的图像色偏补偿方法的流程图；
图2为本公开实施例的色差补偿的示意图；
图3为本公开实施例的图像色偏补偿装置的示意图；
图4为本公开实施例的像素确定电路的示意图；
图5为本公开实施例的补偿电路的示意图；
图6为本公开实施例的图像色偏补偿装置的示意图。
具体实施方式
为使本公开文本实施例的目的、技术方案和优点更加清楚，下面将结合本公开文本实施例的附图，对本公开文本实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开文本的一部分实施例，而不是全部的实施例。基于所描述的本公开文本的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本公开文本保护的范围。
除非另作定义，此处使用的技术术语或者科学术语应当为本公开文本所属领域内具有一般技能的人士所理解的通常意义。本公开文本专利申请说明书以及权利要求书中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。同样，“一个”或者“一”等类似词语也不表示数量限制，而是表示存在至少一个。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅配置成表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也相应地改变。
如图1所示，本公开实施例的图像色偏补偿方法，包括：
步骤101、输入3D(three dimensional，3D)参考图像并驱动显示面板显 示所述参考图像，确定显示所述参考图像具有色偏的像素作为目标像素。
可选地，在本公开实施例中，可按照如下方式确定目标像素：对于所选择的显示区域或全部显示区域中的像素，检测所述像素的每个子像素显示3D图像的显示图像参数，并将检测到的显示图像参数作为实际显示图像参数。将所述实际显示图像参数与所述参考图像参数进行比较。在所述实际显示图像参数和所述参考图像参数的差值超过所选择的阈值范围的状态下，确定所述子像素为具有色偏的子像素，所述子像素所属的像素为目标像素；
可选地，所述参考图像包括已知其理论上所应显示的图像参数的图像。
可选地，所述参考图像包括纯黑色或纯白色的图像，所述参考图像参数包括驱动显示面板显示3D参考图像的理论输出值。
在一些实施例中，所述参考图像包括纯白色的图像，所述参考图像参数包括其最大灰度(R,G,B)为(255，255，255)。
其中，该所选择的显示区域和所选择的阈值范围可任意设置，所述显示图像参数可以包括色度或灰阶，在此不做限定。
可选地，所述显示面板可以为偏光式3D显示面板，由于偏光式3D显示面板进行穿插交错显示，因此能够有较为充足的时间对下一帧3D图像进行补偿。
步骤102、根据所述参考图像，针对每一目标像素确定所述目标像素的显示图像的色偏值。
在实际应用中，像素结构做成之后在显示图像的时候存在色偏，该色偏与显示图像内容无关，一个像素显示任何颜色的图像时，色偏一致。
在实际应用中，颜色对应于显示图像参数，如，色度、灰度、亮度等。知道一个像素显示图像的色度就可以获得对应的灰度、亮度、颜色。因此，在本公开实施例中，颜色可通过确定色度、灰度、亮度等方式确定。实际应用过程中，利用色度仪、灰度测试仪、亮度仪可分别对显示出的图像的每个像素的色度和灰度进行检测，可得到颜色、色偏等。
在本公开实施例中，可将所述实际显示图像参数和所述参考图像参数的差值作为色偏值。
步骤103、根据所述参考图像确定所述色偏值对应的反色，将所述反色 作为所述像素的补偿色。
在本公开实施例中，原色可以是待输出的3D图像信号中对应于所述目标像素的图像信号的颜色，反色即为该原色相对于参考图像的反向色差。
例如，获取目标像素的某个通道(子像素)的颜色，例如红色，令该颜色为原色，对应灰阶为170，而所述参考图像的对应灰阶为255。那么，反色的灰阶为255-170＝85。
步骤104、利用所述补偿色对待输出的3D图像信号进行补偿。
例如，获取所述待输出的3D图像信号中对应于所述目标像素的图像信号的颜色，作为原色。将所述目标像素的补偿色和所述目标像素的原色进行叠加处理，并将叠加处理后的所述目标像素的图像信号的颜色作为色偏补偿后的颜色，以驱动像素显示3D图像。
本公开实施例中，当待处理3D图像的目标像素出现色偏时，根据色偏值确定反色，并利用反色作为补偿色对待输出的3D图像信号进行补偿，因此，利用本公开实施例的方案提高了3D图像的显示效果。
如图2所示，以CCYX像素结构下边缘像素显示区出现青色为例，在255灰阶下进行反向色差补偿。假设，目标像素的子像素A，B，C具有色偏，它们对应的图像信号的颜色分别为红，绿，蓝，设定为原色。红，绿，蓝的实际灰阶值分别为17，255，255。在所选择的灰阶下，通过软件编制的色彩匹配程序或内嵌色彩匹配算法的硬件电路对显示目标像素点位置的R、G、B通道的值进行调制，使随机色与显示色视觉一致，从而获得色偏位置RGB通道值，用反向色差的通道值对色偏像素点位置进行三基色补偿调整，从而输出正常的无色差图像。
按照上述方式，确定红色的反色对应的灰阶值为238(255-17＝238)，绿色的反色对应的灰阶值为0(255-255＝0)，确定蓝色的反色对应的灰阶值为0(255-255＝0)。那么，在补偿时，利用补偿色R(238)，G(0)，B(0)与所述目标像素的原色进行叠加处理，并将叠加处理后的所述目标像素的图像信号的颜色作为色偏补偿后的颜色，以驱动像素显示3D图像。
在本公开实施例中，当待处理3D图像中出现色偏时，对出现色偏的目标像素进行反色色差补偿，因此，本公开实施例的方案提高了3D图像的显 示效果。
可选地，可首先确定目标像素(如像素地址)以及目标像素的色偏值，并根据该色偏值确定反色，以利用该反色进行颜色补偿。将反色对应的颜色补偿值和目标像素的像素地址植入芯片。在正常显示图像时，获取信号源图像后，获取信号源图像对应像素的颜色，与颜色补偿值叠加，然后向显示面板输出叠加后的颜色(如灰阶)，从而实现了对像素色偏的补偿。
如图3所示，本公开实施例的图像色偏补偿装置，包括：
像素确定电路301，配置成在驱动显示面板显示3D参考图像后，确定所述参考图像中具有色偏的像素作为目标像素；
色偏值确定电路302，配置成针对每一目标像素确定所述目标像素的显示图像的色偏值；
补偿色确定电路303，配置成确定所述色偏值对应的反色，将所述反色作为所述像素的补偿色；
补偿电路304，配置成利用所述补偿色对待输出的3D图像信号进行补偿。
在本公开的一些实施例中，如图4所示，所述像素确定电路301包括：
检测子电路3011，配置成对于所选择的显示区域或全部显示区域中的像素，检测所述像素的每个子像素显示3D图像的显示图像参数，并将检测到的显示图像参数作为实际显示图像参数；
比较子电路3012，配置成将所述实际显示图像参数与参考图像的理论参数进行比较；
确定子电路3013，配置成若所述实际显示图像参数和所述参考图像的理论参数的差值超过所选择的阈值范围，则确定所述子像素为具有色偏的子像素，所述子像素所属的像素为目标像素；
其中，所述参考图像的理论参数包括驱动显示面板显示3D参考图像的理论输出值。
在本公开的一些实施例中，如图5所示，所述补偿电路304包括：
获取子电路3041，配置成获取所述待输出的3D图像信号中对应于所述目标像素的图像信号的颜色，作为原色；
叠加子电路3042，配置成将所述目标像素的补偿色和所述目标像素的原 色进行叠加处理；
补偿子电路3043，配置成将叠加处理后的所述目标像素的图像信号的颜色作为色偏补偿后的颜色，以驱动像素显示3D图像。
例如，所述显示图像参数包括色度或灰阶。
本公开实施例所述装置的工作原理可参照前述方法实施例的描述。
在本公开实施例中，当待处理3D图像的目标像素出现色偏时，根据色偏值确定反色，并利用反色作为补偿色对待输出的3D图像信号进行补偿，因此，利用本公开实施例的方案提高了3D图像的显示效果。
参照图6所示，本公开一些实施例还提供了一种图像色偏补偿装置6，包括：一个或多个处理器601，配置成运行指令，执行上述的图像色偏补偿方法中的一个或多个步骤。
可选地，图像色偏补偿装置6还包括存储器602，所述处理器601与所述存储器602相连接，配置成存储由处理器601运行的指令，所述指令被处理器601运行时执行图像色偏补偿方法中的一个或多个步骤。
其中，处理器601可以是中央处理单元(CPU)或者现场可编程逻辑阵列(FPGA)或者单片机(MCU)或者数字信号处理器(DSP)或者专用集成电路(ASIC)或者图形处理器(GPU)等具有数据处理能力和/或程序执行能力的逻辑运算器件。
其中，存储器602可以是各种由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
其中，指令包括了一个或多个由对应于处理器的指令集架构定义的处理器操作，这些指令可以被一个或多个计算机程序在逻辑上包含和表示。
可选地，该图像色偏补偿装置6还可以包括通讯器件、收发器件等，以连接各种输入设备(例如用户界面、键盘等)、各种输出设备(例如扬声器等)或与其它部件实现数据和信息的交互，本文在此不再赘述。
本公开实施例还提供了一种显示设备，所述显示设备包括图3-图5所示的图像色偏补偿装置或图6所示的图像色偏补偿装置。
在本公开所提供的几个实施例中，应该理解到，所揭露方法和装置，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述电路的划分，可以仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个电路或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或电路的间接耦合或通信连接，可以是电性，机械或其它的形式。
另外，在本公开各个实施例中的各功能电路可以集成在一个处理电路中，也可以两个或两个以上电路集成在一个电路中。上述集成的电路既可以采用诸如电路之类的硬件的形式实现，也可以采用硬件加软件的形式实现。
上述以软件的形式实现的集成的电路，可以存储在一个计算机可读取存储介质中。上述软件存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本公开各个实施例所述收发方法的部分步骤。
应当指出，对于本技术领域的普通技术人员来说，在不脱离本公开所述原理的前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本公开的保护范围。

Claims (15)

  1. 一种图像色偏补偿方法，包括：
    输入3D参考图像并驱动显示面板显示参考图像，确定所述参考图像中具有色偏的像素作为目标像素；
    根据所述参考图像针对每一目标像素确定所述目标像素的显示图像的色偏值；
    根据所述参考图像确定所述色偏值对应的反色，将所述反色作为所述像素的补偿色；
    利用所述补偿色对待输出的3D图像信号进行补偿。
  2. 根据权利要求1所述的方法，其中，所述确定所述参考图像中具有色偏的像素作为目标像素的步骤，包括：
    对于所选择的显示区域或全部显示区域中的像素，检测所述像素的每个子像素显示3D图像的显示图像参数，并将检测到的显示图像参数作为实际显示图像参数；
    将所述实际显示图像参数与参考图像参数进行比较；
    在所述实际显示图像参数和所述参考图像参数的差值超过所选择的阈值范围的状态下，确定所述子像素为具有色偏的子像素，所述子像素所属的像素为目标像素，
    其中，所述参考图像参数包括驱动显示面板显示所述参考图像的理论输出值。
  3. 根据权利要求1所述的方法，其中，所述利用所述补偿色对待输出的3D图像信号进行补偿的步骤，包括：
    获取所述待输出的3D图像信号中对应于所述目标像素的图像信号的颜色，作为原色；
    将所述目标像素的补偿色和所述目标像素的原色进行叠加处理；
    将叠加处理后的所述目标像素的图像信号的颜色作为色偏补偿后的颜色，以驱动像素显示3D图像。
  4. 根据权利要求2所述的方法，其中，所述显示图像参数包括色度或灰阶。
  5. 根据权利要求1所述的方法，其中，所述显示面板为偏光式3D显示面板。
  6. 根据权利要求1所述的方法，其中，所述参考图像为纯黑色图像或纯白色图像。
  7. 一种图像色偏补偿装置，包括：
    像素确定电路，配置成驱动显示面板显示输入的3D参考图像，确定所述参考图像中具有色偏的像素作为目标像素；
    色偏值确定电路，配置成根据所述参考图像针对每一目标像素确定所述目标像素的显示图像的色偏值；
    补偿色确定电路，配置成根据所述参考图像确定所述色偏值对应的反色，将所述反色作为所述像素的补偿色；
    补偿电路，配置成利用所述补偿色对待输出的3D图像信号进行补偿。
  8. 根据权利要求7所述的装置，其中，所述像素确定电路包括：
    检测子电路，配置成对于所选择的显示区域或全部显示区域中的像素，检测所述像素的每个子像素显示3D图像的显示图像参数，并将检测到的显示图像参数作为实际显示图像参数；
    比较子电路，配置成将所述实际显示图像参数与参考图像参数进行比较；
    确定子电路，配置成在所述实际显示图像参数和所述参考图像参数的差值超过所选择的阈值范围的状态下，确定所述子像素为具有色偏的子像素，所述子像素所属的像素为目标像素；
    其中，所述参考图像参数包括驱动显示面板显示所述参考图像的理论输出值。
  9. 根据权利要求7所述的装置，其中，所述补偿电路包括：
    获取子电路，配置成获取所述待输出的3D图像信号中对应于所述目标像素的图像信号的颜色，作为原色；
    叠加子电路，配置成将所述目标像素的补偿色和所述目标像素的原色进行叠加处理；
    补偿子电路，配置成将叠加处理后的所述目标像素的图像信号的颜色作为色偏补偿后的颜色，以驱动像素显示3D图像。
  10. 根据权利要求8所述的装置，其中，所述显示图像参数包括色度或灰阶。
  11. 根据权利要求7所述的装置，其中，所述显示面板为偏光式3D显示面板。
  12. 根据权利要求7所述的装置，其中，所述参考图像为纯黑色图像或纯白色图像。
  13. 一种图像色偏补偿装置，包括：
    一个或多个处理器，
    所述处理器被配置为运行指令以执行权利要求1-6任一所述图像色偏补偿方法中的一个或多个步骤。
  14. 根据权利要求13所述的装置，还包括：
    存储器，与所述一个或多个处理器连接，配置成存储由处理器运行的指令，所述指令被处理器运行时执行权利要求1-6任一所述的图像色偏补偿方法中的一个或多个步骤。
  15. 一种显示设备，包括权利要求7-14任一所述的图像色偏补偿装置。
PCT/CN2018/079584 2017-06-27 2018-03-20 图像色偏补偿方法、装置及显示设备 WO2019001027A1 (zh)

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