26 November 2012 An experimental study on the relationship between maximum disparity and comfort disparity in stereoscopic video
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Abstract
It is well known that some viewers experience visual discomfort when looking at stereoscopic displays. The disparity is one of the key factors that affect visual comfort in 3D contents, and there is a comfortable disparity range for a person. In this paper, we explore the comfort disparity, which correlates with the optimal viewing distance, as a function of the maximum disparity for an individual. Firstly, the individual maximum disparities of 14 subjects were measured. Then the subjects were asked to rate the comfort scores for a 3D video sequence with different disparity, to evaluate the individual comfort disparity. The results show that as the individual maximum disparity increased, the corresponding comfort disparity increased, and we found a correlation coefficient of r=0.946. The average ratio between the comfort disparity and the maximum disparity was approximately 0.72, and this ratio can be used for one to determine the optimal 3D viewing distance by a rapid method.
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Zaiqing Chen, Zaiqing Chen, Junsheng Shi, Junsheng Shi, Yonghang Tai, Yonghang Tai, } "An experimental study on the relationship between maximum disparity and comfort disparity in stereoscopic video", Proc. SPIE 8556, Holography, Diffractive Optics, and Applications V, 855608 (26 November 2012); doi: 10.1117/12.2001278; https://doi.org/10.1117/12.2001278
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