Detection of binocular chromatic fusion limit for opposite colors
Posted on 13.10.2021 - 00:32
When the input colors of the left and right eyes are inconsistent, binocular rivalry may occur. According to Herring's theory, opponent colors would have the most significant tendency for rivalry. However, binocular color fusion still occurs under the condition that each eye's opponent chromatic responses do not exceed a specific chromatic fusion limit (CFL). This paper detects the binocular chromatic fusion limit for opposite colors within a conventional 3D display color gamut. We experimented to measure the binocular chromatic fusion limit for four opposite color directions on an equal lightness plane in the CIELAB color space. Due to color inconsistency between eyes may affect the binocular color fusion, the experiment was divided into two sessions by switching stimulation colors of left and right eyes. A total of 320 trials were recorded for a single observer and 1600 trials were collected. By analyzing the results, we used ellipses to quantify the chromatic fusion limits for opposing colors. The average semi-major axis of the ellipses is 27.55 ∆E*ab, and the average semi-minor axis is 16.98 ∆E*ab. Results show that the human eye's fusion tolerance of the opposite colors in the directions of Red-Green and RedBlue-GreenYellow is more extensive than that of the opposite colors in the directions of Yellow-Blue and RedYellow-GeenBlue. We observed that the chromatic fusion limit varies with the opposite color direction. Furthermore, we suggested that the chromatic fusion limit is independent of the cell distribution, and there is no significant change in the fusion ellipse boundaries after switching left and right eye colors.
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Xiong, Qi; Liu, Hui; chen, zaiqing; Tai, Yonghang; Shi, Junsheng; liu, wu-ming (2021): Detection of binocular chromatic fusion limit for opposite colors. Optica Publishing Group. Collection. https://doi.org/10.6084/m9.figshare.c.5645566.v1
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