人眼明度视觉对比敏感度特性测量  

Measurement of the Lightness Contrast Sensitivity of Human Vision

作　　者：杨晟炜[1] 方恩印[1] 郑亮[1] 许向阳[2] YANG Sheng-wei;FANG En-yin;ZHENG Liang;XU Xiang-yang(Shanghai Publishing and Printing College,Shanghai 200093,China;Shenzhen Polytechnic,Shenzhen 518055,China)

机构地区：[1]上海出版印刷高等专科学校,上海200093 [2]深圳职业技术学院,广东深圳518055

出　　处：《包装工程》2019年第19期251-256,共6页Packaging Engineering

基　　金：“柔版印刷绿色制版与标准化实验室”招标课题(ZBKT201804,ZBKT201705)

摘　　要：目的研究人眼明度视觉感受野“中心-周边”的拮抗特征。方法设计心理物理实验,测量视觉感知颜色空间CIELAB明度轴上5个明度样本在11个空间频率上的对比敏感度数据;分别采用一元分析法和主成分分析法对实验采集数据进行分析,对比不同明度视觉、空间频率以及对比敏感度阈值之间的函数关系。结果一元分析表明,5个明度样本的对比敏感度曲线表现为带通特性,明度值越高带通特性越明显;主成分分析表明,以前2个主成分为新变量,可描述人眼视觉感受野特性。结论人眼视觉在低频1~6 cpd时表现出了“中心-周边”环绕的阶调传递特征;在高频时人眼明度CSF与亮度CSF相似,随着空间频率的升高,人眼视觉对比敏感度降低。The work aims to study the antagonistic characteristics of human visual receptive field“center-surround”.Psychophysical experiments were designed to measure the contrast sensitivity data of 5 lightness samples on CIELAB lightness axis in visual perceptual color space at 11 spatial frequencies.The data collected from the experiments were analyzed by one-dimensional linear regression and principal component analysis,respectively.The functional relationship between different brightness vision,spatial frequency and contrast sensitivity threshold was compared.One-dimensional linear regression showed that,the contrast sensitivity curves of the five lightness samples showed band-pass characteristics,and the higher the lightness value,the more obvious the band-pass characteristics.Principal component analysis showed that,the former two principal components were new variables to describe the characteristics of human visual receptive field.The human vision shows a“center-surround”surrounding tone transfer characteristic at low frequencies of 1~6 cpd.At high frequencies,the brightness CSF of human eyes is similar to brightness CSF.As the spatial frequency increases,the contrast sensitivity of human vision decreases.

关 键 词：颜色视觉 对比敏感度 空间频率 CIELAB 

分 类 号：TS801.3[轻工技术与工程]