A probability summation model for temporal characteristics of color discrimination threshold
Psychophysical experiments of color discrimination give us important data for evaluating color difference formula as well as investigating the mechanism of human color vision. It is known that the post-receptoral channels, the luminance channel and two opponent-color channels contribute to the color discrimination threshold. In the present study, we measured color discrimination threshold using test stimuli of various temporal frequency profiles. Contrast thresholds were measured on the (L+M, S) plane, the (L, M) plane and on the (L-M, S) plane in the cone excitation space. Experimental results show that the threshold elevation due to the temporal frequency changes independently to the direction of L+M, L-M, and S. We apply the probability summation model to explain the effect of temporal frequency on the color discrimination threshold.
Color discrimination Contrast threshold Probability summation model Color vision Contrast sensitivity function
Hirohisa Yaguchi Ryo Takahashi Yoko Mizokami
Graduate School of Advanced Integration Science, Chiba University Graduate School of Science and Technology, Chiba University 1-33 Yoyoicho, Inage-ku, Chiba, 263-8522
国际会议
杭州
英文
98-101
2007-07-12（万方平台首次上网日期，不代表论文的发表时间）