Abstract-We propose content dependent factors to be an argument of evaluation model of visual fatigue. The content factors we choose are the strength and size of the excessive disparity range, the complexity of the background objects, the variation of the motion-depth, the contrast of the objects in the scene. We verify that these factors have a relationship with visual fatigue through the experiment and suggest methods to extract the degree of these factors automatically.Index Terms-Content based fatigue factors, evaluation model of fatigue, stereoscopy, depth discontinuity, excessive disparity, fatigue of color.

Abstract-Conventional perceived depth models represent the perception of depth by human being considering algebraic structure of observation environment. In this paper, we want to propose a new perceived depth model using the fact that the perceived depth can be varied with the change of color components of observation contents while the observation environment fixed.Index Terms-Color component, perceived depth, human visual system.

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Abstract-The change of color information on 3-dimensional stereoscopic video usually causes visual fatigue. Color information also gives some effect on the depth recognition because of the visual perception for the effect such as 'forward color'. However the effect of 'forward color' does not gives much influence on depth perception. Therefore, the analysis of color itself rather than the concept of 'forward color' is important. In this paper, the method for calculating visual fatigue by color only is proposed.Index Terms-Color fatigue, perceived depth, human visual system.

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