老年人彩度对比敏感度函数研究及滤波应用
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摘要
为研究老年人彩色视觉频率响应特性,获取彩度对比敏感度与空间频率之间的函数关系,本文在LCH均匀颜色空间基础上,固定明度和色调角值,以彩度作为变量,设计人眼彩度对比敏感度实验,进行人眼视觉观察实验。获得彩度对比敏感度与空间频率的关系,并构建指数型对比敏感度函数模型。经分析表明老年人眼彩度对比敏感度随着空间频率的增加,产生先升高再缓慢降低的变化,各色调角下彩度对比度存在差异。经分析人眼对比敏感度差异与人眼视觉辨色特性有很大的相关性。并且,将构建的对比敏感度函数模型用于实现基于人眼视觉系统的滤波处理。
In order to study the color visual frequency response characteristics of the elderly,the functional relationship between chroma contrast sensitivity and spatial frequency was obtained.In this paper,based on LCH uniform color space,fixed brightness and hue angle values,using chroma as a variable,the chroma contrast sensitivity experiment was designed,and a large number of human visual observation experiments were conducted.The relationship between chroma contrast sensitivity and spatial frequency was obtained,and an exponential contrast sensitivity function model was constructed.The analysis showed that contrast sensitivity of the elderly increases first and then slowly decreases with the increase of spatial frequency,and there was a difference in chroma contrast between each hue angle.The difference in contrast sensitivity had a great correlation with the color discrimination characteristics of human eyes;building a specific sensitivity function model can be used to implement filtering processing based on the human visual system.
In order to study the color visual frequency response characteristics of the elderly,the functional relationship between chroma contrast sensitivity and spatial frequency was obtained.In this paper,based on LCH uniform color space,fixed brightness and hue angle values,using chroma as a variable,the chroma contrast sensitivity experiment was designed,and a large number of human visual observation experiments were conducted.The relationship between chroma contrast sensitivity and spatial frequency was obtained,and an exponential contrast sensitivity function model was constructed.The analysis showed that contrast sensitivity of the elderly increases first and then slowly decreases with the increase of spatial frequency,and there was a difference in chroma contrast between each hue angle.The difference in contrast sensitivity had a great correlation with the color discrimination characteristics of human eyes;building a specific sensitivity function model can be used to implement filtering processing based on the human visual system.
引文
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[17]许向阳.与视觉认知过程相关的图像色貌建模的研究[D].广州:华南理工大学,2016.Xu X Y.A research of image color appearance modeling based on cognition processing of human vision[D].Guangzhou:South China University of Technology,2016.
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[21]武海丽,黄庆梅,苑馨方,李瑞玲.基于S-CIELAB和iCAM模型的图像色质量评价方法的实验研究[J].光学学报,2010,30(12):3447-3453.Wu H L,Huang Q M,Yuan X F,Li R L.Experimental research of evaluating methods of image quality based on models of S-CIELAB and iCAM[J].Acta Optica Sinica,2010,30(12):3447-3453.
[22]卢沧龙,徐海松,宫睿.不同环境参数下CIECAM02的跨媒体颜色复现性能[J].光学学报,2012,32(7):0733001.Lu C L,Xu H S,Gong R.CIECAM02 performance on cross-media color reproduction in different surround condictions[J].Acta Optica Sinica,2012,32(7):0733001.
[23]张建勇,金伟其,周燕.人眼的彩色和亮度传递特性及模型化[J].应用光学,2003,24(4):1-5.Zhang J Y,Jin W Q,Zhou Y.The color and luminance transfer characteristic and modeling of human visual system[J].Tournal of Applied Optics,2003,24(4):1-5.
[24]于跃飞,许旭萍,周吉清.基于LAB空间的LCD显示器CSF模型构建[J].包装工程,2015,36(1):134-138,150.Yu Y F,Xu X P,Zhou J Q.Construction of CSF model for LCD display based on LAB color space[J].Packaging Engineering,2015,36(1):134-138,150.
[25]雷季东.人眼对比度阈值测量系统光学设计及软件开发[D].北京:北京理工大学,2015.Lei J D.Optical design and software development of the human eye contrast threshold measurement system[D].Beijing:Beijing Institute of Technology,2015.
[26]汪哲弘,徐海松.基于视觉容差与色调角相关性的色差公式评价[J].光学学报,2009,29(7):1838-1841.Wang Z H,Xu H S.Evaluation of color difference formulae based on the correlation between visual tolerances and hue angles[J].Acta Optica Sinica,2009,29(7):1838-1841.
[27] Barten P G.Contrast Sensitivity of the Human Eye and Its Effects on Image Quality[M].Bellingham:SPIE Optical Engineering Press,1999.27-40.
[28]MacAdam D L.Visual sensitivities to color differences in daylight[J].Journal of Optical Society of America,1942,32(5):247-274.
[2] Mannos J L,Skarison D J.The effects of a visual fidelity criterion on the encoding of image[J].IEEE Transactions on Information Theory,1974,20(4):525-536.
[3] Daly S J.Visible differences predictor:an algorithm for the assessment of image fidelity[C].Proceeding of the SPIE,Human Vision,Visual Processing and Digital Display III,1666:2-15,1992.
[4]Marcus N.Integration of human color vision models into high quality image compression[D].Switzerland:RheinischWestfalische Technische Hochschule,Aachen denationalité-allemande,2000.
[5] Ross J E,Clarke D D,Bron A J.Effect of age on contrast sensitivity function:uniocular and binocular findings[J].British Journal of Ophthalmology,1985,69:51-56.
[6] Mullen K T.The contrast sensitivity of human color vision to red-green and blue-yellow chromatic gratings[J].The Journal Physiology,1985,359:381-400.
[7] Barten P G J.The SQRI method:a new method for the evaluation of visible resolution on a display[J].The Royal Society,1987,28:253-262.
[8] Barten P G J.Evaluation of subjective image quality with the square-root integral method[J].Journal of the Optical So-ciety of America A,1990,7(10):2024-2031.
[9] Zhang X M,Wandell B A.A spatial extension to CIELAB for digital color image reproduction[C].Symposium Proceeding of Society for Information Display,1996.
[10] Zhang X M.Color image quality metric S-CIELAB and its application to halftone texture visibility[C].Symposium Proceedings of IEEE Compcon 97,1997.
[11] Wandell B A.Color appearance and the digital imaging pipeline[C].International Conference on Pattern Recognition,2000.
[12] Johnson G M,Fairchild M D.Measuring images:differences,quality and appearance[D].Carlson Center for Imaging Science of the College of Science Rochester Institute of Technology,2003.
[13]金杨.基于均匀颜色空间的彩色视觉对比敏感度函数及其应用研究[D].南京:南京林业大学,2012.Jin Y.Study on Contrast sensitivity function of human color vision under uniform-scaled color space-principle,testing and application[D].Nanjing:Nanjing Forestry University,2012.
[14]金杨,刘真,王鹏飞,欧阳玉洁.LCH色空间视觉彩色频率响应特性研究[J].包装工程,2012,33(21):125-129.Jin Y,Liu Z,Wang P F,Ouyang Y J.Research on frequency response characteristic of color vision in LCH color space[J].Packaging Engineering,2012,33(21):125-129.
[15]金杨,刘真,王鹏飞.CIE L*a*b*色空间色调角对比敏感度函数研究[J].北京理工大学学报,2013,33(8):824-828.Jin Y,Liu Z,Wang P F.Research on contrast sensitivity function of hue in CIE 1976 L*a*b*color space[J].Transaction of Beijing Institute of Technology,2013,33(8):824-828.
[16]王鹏飞,金杨,刘真.图像颜色空间及其分量自相关研究[J].中国印刷包装研究,2011,3(5):34-39.Wang P F,Jin Y,Liu Z.Study on contrasts of color space and their auto-correlation of image[J].China Printing and Packaging Study,2011,3(5):34-39.
[17]许向阳.与视觉认知过程相关的图像色貌建模的研究[D].广州:华南理工大学,2016.Xu X Y.A research of image color appearance modeling based on cognition processing of human vision[D].Guangzhou:South China University of Technology,2016.
[18]许向阳,陈广学.基于多尺度叠加的视觉距离模糊算法的研究[J].光学学报,2014,34(2):334-338.Xu X Y,Chen G X.Research of visual distance blur algorithm based on multi-scale overlay[J].Acta Optica Sinica,2014,34(2):334-338.
[19]姚军财.基于人眼对比敏感视觉特性的彩色图像盲水印算法[J].液晶与显示,2017,32(8):642-649.Yao J C.Blind watermarking algorithm for colour image based on human visual contrast sensitivity characteristics[J].Chinese Journal of Liquid Crystals and Displays,2017,32(8):642-649.
[20]宋明珠,曲宏松,金光.含噪光学遥感图像海面弱小舰船目标检测[J].光学学报,2017,37(10):161-168.Song M Z,Qu H S,Jin G.Weak ship target detection of noisy optical remote sensing image on sea surface[J].Acta Optica Sinica,2017,37(10):161-168.
[21]武海丽,黄庆梅,苑馨方,李瑞玲.基于S-CIELAB和iCAM模型的图像色质量评价方法的实验研究[J].光学学报,2010,30(12):3447-3453.Wu H L,Huang Q M,Yuan X F,Li R L.Experimental research of evaluating methods of image quality based on models of S-CIELAB and iCAM[J].Acta Optica Sinica,2010,30(12):3447-3453.
[22]卢沧龙,徐海松,宫睿.不同环境参数下CIECAM02的跨媒体颜色复现性能[J].光学学报,2012,32(7):0733001.Lu C L,Xu H S,Gong R.CIECAM02 performance on cross-media color reproduction in different surround condictions[J].Acta Optica Sinica,2012,32(7):0733001.
[23]张建勇,金伟其,周燕.人眼的彩色和亮度传递特性及模型化[J].应用光学,2003,24(4):1-5.Zhang J Y,Jin W Q,Zhou Y.The color and luminance transfer characteristic and modeling of human visual system[J].Tournal of Applied Optics,2003,24(4):1-5.
[24]于跃飞,许旭萍,周吉清.基于LAB空间的LCD显示器CSF模型构建[J].包装工程,2015,36(1):134-138,150.Yu Y F,Xu X P,Zhou J Q.Construction of CSF model for LCD display based on LAB color space[J].Packaging Engineering,2015,36(1):134-138,150.
[25]雷季东.人眼对比度阈值测量系统光学设计及软件开发[D].北京:北京理工大学,2015.Lei J D.Optical design and software development of the human eye contrast threshold measurement system[D].Beijing:Beijing Institute of Technology,2015.
[26]汪哲弘,徐海松.基于视觉容差与色调角相关性的色差公式评价[J].光学学报,2009,29(7):1838-1841.Wang Z H,Xu H S.Evaluation of color difference formulae based on the correlation between visual tolerances and hue angles[J].Acta Optica Sinica,2009,29(7):1838-1841.
[27] Barten P G.Contrast Sensitivity of the Human Eye and Its Effects on Image Quality[M].Bellingham:SPIE Optical Engineering Press,1999.27-40.
[28]MacAdam D L.Visual sensitivities to color differences in daylight[J].Journal of Optical Society of America,1942,32(5):247-274.