Abstract
The stereo image consisting of an achromatic image and a chromatic image (mixed stereo pair) can be fused as a three-dimensional (3D) color scene by human observers. It is said that the color in the scene is less vivid than in the chromatic image; however, there is little quantitative measurement for the color degradation. In this paper, we carried out a binocular color matching experiment on a stereoscopic display, and the binocular fusion of achromatic and chromatic colors is quantitatively measured. On an equal lightness plane of the CIELAB color space, the achromatic stimulus was presented to one eye, and the chromatic stimuli with different chromas (3 chroma levels) on different color directions (8 hues) were presented to the other eye. Then, the binocular fusion of two colors received by the two eyes was recorded by the matching experiment. Results show that when one eye is given a gray stimulus and the other eye is given a color stimulus, observers can always fuse the two stimuli. For chromatic stimuli with chroma 8, the perceived chromas degenerate to half of the chromatic patch, and for chromatic stimuli with chroma 12 and 16, the perceived chromas have significant difference on different color directions. However, the interaction between chroma and hue variations was not significant in the results of the 2-way ANOVA, it suggests that there is no difference in the variations across the color directions among the chromas.
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Thanks to the National Science Foundation of China for helping identify collaborators for this work.
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National Science Foundation of China (61865015, 62165019, 61875171).
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Chen, Z., Liu, H., Xiong, Q. et al. A quantitative measurement of binocular fusion for achromatic and chromatic colors. Opt Rev 30, 50–60 (2023). https://doi.org/10.1007/s10043-022-00786-5
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DOI: https://doi.org/10.1007/s10043-022-00786-5