基于通用三原色信道的四原色图像颜色表示方法

宇欣; 雷志春

doi:10.3788/YJYXS20193411.1079

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基于通用三原色信道的四原色图像颜色表示方法

图像处理 | 更新时间：2020-07-05

- 基于通用三原色信道的四原色图像颜色表示方法
- Representing four-primary-color image based on three-primary-color channels
- 液晶与显示 2019年34卷第11期页码：1079-1090
- 作者机构：
  
  1.天津大学微电子学院, 天津 300072
  2.鲁尔西应用科学大学传感与测量研究所, 德国 45479
- 作者简介：
  
  [ "宇欣(1995-), 女, 河北张家口人, 硕士研究生, 2017年于河北工业大学获得学士学位, 主要从事HDR-WCG视频传输与显示方面的研究。E-mail:silviayu@tju.edu.cn" ]
  [ "雷志春(1964-), 男, 河北省迁安人, 博士, 教授, 1998年于德国多特蒙德大学获得博士学位, 主要从事HDR-WCG视频显示、图像处理方面的研究。E-mail:zclei@tju.edu.cn" ]
- 基金信息：
  
  广东省“杨帆计划”引进创新创业团队项目(2016YT04G420);Supported by Guangdong YangFan Innovative & Entepreneurial Reasearch Team Program(2016YT04G420)
- DOI：10.3788/YJYXS20193411.1079
  中图分类号： TN919.81
- 收稿日期：2019-08-14，
  
  录用日期：2019-9-3，
  
  纸质出版日期：2019-11-05
- 稿件说明：
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宇欣, 雷志春. 基于通用三原色信道的四原色图像颜色表示方法[J]. 液晶与显示, 2019,34(11):1079-1090.

Xin YU, Zhi-chun LEI. Representing four-primary-color image based on three-primary-color channels[J]. Chinese journal of liquid crystals and displays, 2019, 34(11): 1079-1090.
宇欣, 雷志春. 基于通用三原色信道的四原色图像颜色表示方法[J]. 液晶与显示, 2019,34(11):1079-1090. DOI： 10.3788/YJYXS20193411.1079.

Xin YU, Zhi-chun LEI. Representing four-primary-color image based on three-primary-color channels[J]. Chinese journal of liquid crystals and displays, 2019, 34(11): 1079-1090. DOI： 10.3788/YJYXS20193411.1079.

摘要

本文针对当前多原色宽色域成像系统的图像信号无法在现有标准三原色信道传输、以及多原色宽色域显示系统没有多原色图像源的问题，提出了一种基于通用三原色信道的四原色图像颜色表示方法。由四原色构成的四边形被分解为两个三角形，位于每个三角形内的复合色光可以由三原色进行唯一地表达。若四原色成像系统摄取的彩色像素位于由红绿蓝三原色构成的三角形内，该像素将按照标准YUV格式进行编码，形成YUV序列；若四原色成像系统摄取的彩色像素不位于由红绿蓝三原色构成的三角形内，该像素将采用非标准YUV格式进行编码，也形成YUV序列。标准YUV格式与非标准YUV格式的区别使得解码器能够盲识别彩色像素来自红绿蓝三原色还是来自其他三原色，从而使得宽色域视频显示系统使用相应的三原色进行正确显示。实验结果表明：本文提出的图像编码方法可以完全利用标准三原色信道传输四原色图像信号，解码器可以100%正确识别YUV信号的三原色来源。作者利用JPEG图像压缩算法测试YUV序列，相较于RGB三原色系统下的标准YUV序列，非红绿蓝三原色下的YUV序列压缩率提升0.07~5.99，色域覆盖率远远超过Pointer色域，更加接近人眼可视色域。

Abstract

To overcome the problem that images captured by the current imaging system with the multi-primary-color image sensor cannot be transmitted under the three-primary-color channel

as well as the wide color gamut display system using multi-primary color filters or backlight does not have multi-primary-color image contents

this paper presents a method transmitting four-primary- color images only with the data amount of the YUV format. The quadrilateral constituted by four-primary colors is decomposed into two triangles so that one can represent a composite color uniquely using the corresponding three-primary colors. If a composite color lies in the RGB triangle

it can be encoded according to the standard YUV format. Otherwise

it can be encoded in a non-standard YUV format. The difference between standard YUV format and non-standard YUV format enables the decoder to blindly identify the source of the YUV data stream. In this way

the display can render the color in question using three corresponding primaries. The experimental results show that the proposed image coding method can completely deliver the four-primary-color image signals using the YUV data amount. Decoder can identify the source of the YUV data stream absolutely. Using JPEG compression algorithm to test the YUV sequence

the compression ratio is increased by 0.07~0.59 compared to the RGB three-primary-color system. The gamut coverage far exceeds the Pointer gamut

even is closer to the visible gamut of the human eye.

关键词

Keywords

references

ITU. ITU-R BT.709-5 Parameter values for the HDTV standards for production and international programme exchange[S]. Geneva: International Telecommunications Union, 2002.

Growing importance of color in a world of displays anddata[EB/OL]. (2015-10-27)[2019-08-01] . http://rohs.exemptions.oeko.info/fileadmin/user_upload/RoHS_Pack_10/Cd_QD_Exs_QD_Vision_c_Importance_of_Quality_in_Displays.pdf http://rohs.exemptions.oeko.info/fileadmin/user_upload/RoHS_Pack_10/Cd_QD_Exs_QD_Vision_c_Importance_of_Quality_in_Displays.pdf .

YUREK J. Watching the world cup finals this weekend? Your HDTV probably can't show off Messi's boots in all their bright blue glory[EB/OL]. (2014-07-14)[2019-08-01] . https://dot-color.com/2014/07/11/watching-the-world-cup-finals-this-weekend-on-your-hdtv-youre-not-getting-the-whole-picture/ https://dot-color.com/2014/07/11/watching-the-world-cup-finals-this-weekend-on-your-hdtv-youre-not-getting-the-whole-picture/ .

IEC. IEC 61966-2-4 Multimedia systems and equipment-colour measurement and management-Part 2-4: colour management-extended-gamut YCC colour space for video applications-xvYCC[S]. Geneva: IEC, 2006.

XU Y, LI Y, LI G L. Two kinds of methods to extend the color gamut of DTV system with extended quantization levels[C]// Proceedings of the 20092nd International Congress on Image and Signal . Tianjin, China: IEEE, 2009: 1-4. https://ieeexplore.ieee.org/document/5304097

ITU. ITU-R BT.2020-2 Parameter values for ultra-high definition television systems for production and international programme exchange[S]. ITU, 2012.

POINTER M R. The gamut of real surface colours[J]. Color Research and Application , 1980, 5(3):145-155.

CHINNOCK C. The Status of Wide Color Gamut UHD-TVs [M]. USA:Insight Media, 2016.

DUAN L, LEI Z C. Wide color gamut display with white and emerald backlighting[J]. Applied Optics , 2018, 57(6):1338-1344.

HIRAI K, IRIE D, HORIUCHI T. Multi-primary image projector using programmable spectral light source[J]. Journal of the Society for Information Display , 2016, 24(3):144-153.

MANDELLI E. Quantum dot based imagers for multispectral cameras and sensors[C]// Proceedings of 2016 IEEE Hot Chips 28 Symposium . Cupertino: IEEE, 2016: 1-30. https://ieeexplore.ieee.org/abstract/document/7936215

LUO Z Y, WU S H. A spatiotemporal four-primary color LCD with quantum dots[J]. Journal of Display Technology , 2014, 10(5):367-372.

徐梦层, 李昌禄, 雷志春.宽色域液晶显示系统的研究[J].液晶与显示, 2018, 33(7):606-614.

XU M C, LI C L, LEI Z C. Wide color gamut liquid crystal display system[J]. Chinese Journal of Liquid Crystals and Displays , 2018, 33(7):606-614. (in Chinese)

SUGIURA H, KAGAWA S, KANEKO H, et al . Wide color gamut displays using LED backlight - signal processing circuits, color calibration system and multi-primaries[C]// Proceedings of IEEE International Conference on Image Processing 2005 . Genova: IEEE, 2005: Ⅱ-9.

HINNEN K J G, LANGENDIJK E H A, HAMMER M. Ultra wide-gamut LCD using a local multi-spectral backlight[J]. SID Symposium Digest of Technical Papers , 2011, 42(1):669-672.

XIONG Y, DENG F, XU S, et al . Performance analysis of multi-primary color display based on OLEDs/PLEDs[J]. Optics Communications , 2017, 398:49-55.

WANG Y C, HUANG B S, HSIEH K S, et al . Comparative evaluation of the imaging performance of multi-primary color LCDs with RGBCW and RGBCY pixel units by simulation[J]. Journal of Display Technology , 2014, 10(9):729-736.

TERAGAWA M, YOSHIDA A, YOSHIYAMA K, et al . Multi-primary-color displays:the latest technologies and their benefits[J]. Journal of the Society for Information Display , 2012, 20(1):1-11.

DAWSON S. Sharp LC70LE735X review: sharp aquos quattron LC70LE735X[EB/OL]. (2012-07-27)[2019-08-01] . https://www.cnet.com/au/products/sharp-lc70le735x/review/ https://www.cnet.com/au/products/sharp-lc70le735x/review/ .

CHENG H C, DAVID I B, WU S H. Five-primary-color LCDs[J]. Journal of Display Technology , 2010, 6(1):3-7.

CHEN L, TU Y, WANG L L, et al . Perceptual evaluation of sub-pixel rendering in a four-primary display system[C]// Proceedings of the 20092nd International Congress on Image and Signal Processing . Tianjin, China: IEEE, 2009: 1-5. https://ieeexplore.ieee.org/document/5301127

MANG Y O, HUANG S H. Design considerations between color gamut and brightness for multi-primary color displays[J]. Journal of Display Technology , 2007, 3(1):71-82.

MURAKAMI Y, ISHII J I, OBI T, et al . Color conversion method for multi-primary display for spectral color reproduction[J]. Journal of Electronic Imaging , 2004, 13(4):701-708.

SHARMA G. Digital Color Imaging Handbook [M]. Boca Raton:CRC Press, 2003.

SONY. Realization of natural color reproduction in digital still cameras, closer to the natural sight perception of the human eye[EB/OL]. (2013-07-16)[2019-08-01] . https://www.sony.net/SonyInfo/News/Press_Archive/200307/03-029E/ https://www.sony.net/SonyInfo/News/Press_Archive/200307/03-029E/ .

FRANÇOIS E, FOGG C, HE Y W, et al . High dynamic range and wide color gamut video coding in HEVC:status and potential future enhancements[J]. IEEE Transactions on Circuits and Systems for Video Technology , 2016, 26(1):63-75.

ARTUSI A, MANTIUK R K, RICHTER T, et al . JPEG XT:a compression standard for HDR and WCG images[standards in a nutshell] [J] . IEEE Signal Processing Magazine , 2016, 33(2):118-124.

俞斯乐.电视原理[M].6版.北京: 国防工业出版社, 2005.

YU S L. The Principle of Television [M]. 6th ed. Beijing: National Defend Industry Press, 2005.

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