摘要
为检验CIE 2006颜色匹配函数(CMFs)的视角参数计算性能,选用了不同原色光谱组合的LED发光面板开展颜色匹配实验。以L1(636 nm-524 nm-448 nm)为目标原色组合,L2(676 nm-524 nm-448 nm)和L4(636 nm-524 nm-472 nm)为匹配原色组合,组织了45名色觉正常观察者在4个不同观察视角下(2.9°、5.7°、8.6°和11.0°)开展了CIE推荐的2个颜色(红、蓝)和白色的颜色匹配实验。采集目标色和匹配色的光谱能量,分别代入CIE 2006 (1°~10°) CMFs中进行计算,并以计算的Δ(u’, v’)值表示颜色匹配精度。结果表明:当观察视角小于4°时,CIE 2006 2°CMFs具有较好的计算性能;当观察视角大于4°时,CIE 2006 3°CMFs具有较好的计算性能。在对大视角显示设备呈现的颜色刺激进行测量和计算校正时,现有CIE 2006 CMFs的视角参数计算性能有待进一步改进和优化。
Objective Color matching functions(CMFs)play a critical role in color science and management.Accurate colorimetry starts with accurate CMFs.Due to changes in the cone pigment optical densities and macular pigment at different retinal locations,different CMFs are required for different fields of view(FOVs).Currently,the CIE 19312°CMFs are recommended for a FOV between 1°and 4°,while the CIE 196410°CMFs are recommended for a FOV beyond 4°.In 2006,the committee derived a model to estimate the cone fundamentals for normal observers with a FOV ranging from 1°to 10°.With the development of wide color gamut displays and display devices for different application scenarios,several recent studies have disclosed that the field size can have a large impact on CMFs,and hence the colorimetric values are derived from them.It is worth systematically investigating the accuracy and performance of the CMFs recommended by International Commission on illumination(CIE)concerning the parameter of FOVs.Methods In this study,a series of color matching experiments using spectrally narrowband primaries are performed.Firstly,we select LED panels with red,green,and blue colors of 636 nm,524 nm,and 448 nm as the target set(named L1 set),and the peak wavelengths of these three primaries are generally similar to those used in Stiles and Burch(i.e.,645.2,526.3,and 444.4 nm),with wavelength shifts of below 10 nm,which are found to introduce a small degree of observer metamerism.Meanwhile,the L2(676 nm524 nm448 nm)and L4(636 nm524 nm472 nm)are selected as the matched primary sets.Then,three colors including red and blue from the five colors recommended by CIE and white are randomly presented with the L1 target set.After that,fortyfive color normal observers are organized to carry out the color matching experiments in four FOVs(2.9°,5.7°,8.6°,and 11.0°).Finally,the spectral power distributions(SPDs)of the target and the matched colors are measured immediately.Results and Discussions The SPDs of the target and the matched colors are measu
作者
王宇
黄敏
李钰
高心愿
沈跃桐
梁炯
Wang Yu;Huang Min;Li Yu;Gao Xinyuan;Shen Yuetong;Liang Jiong(School of Printing and Packaging Engineering,Beijing Institute of Graphic Communication,Beijing 102600,China)
出处
《光学学报》
EI
CAS
CSCD
北大核心
2023年第11期290-299,共10页
Acta Optica Sinica
基金
国家自然科学基金(61675029)
北京印刷学院科研创新团队项目(BIGCEc202302)。
