Evaluation of 3D Specularity by Changing the Disparity Angleand Image Contrast

Shoji Yamamoto, Masashi Sawabe, Yasuki Yamauchi, orimichi Tsumura

Department of Information and Image Sciences, Chiba University 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan

Japanese Journal of Visual Science, Vol. 34, pp.91-99(2013).

Abstract
In this paper, we evaluated the change of visual perception for specular reflections by using binocular stereoscopic display. In our experiment, the subjective evaluation was performed by using both 2D and 3D images which were consisted of the combination of both diffuse and speclar reflection. Furthermore, the disparity angle between diffuse and specular reflection in 3D image was changed in the depth perceptible range. When the depth was hardly observed, the scores of visual perception for specular reflections were almost the same for both 2D and 3D images. On the other hand, when the depth was obviously perceived, the score of 3D images for specular reflections was stronger than the score of 2D images. This difference was observed even if the contrast between diffuse and speclar reflection was changed. We confirmed that the visual perception for specular reflection arose at the case of 3D representation when the disparity angle between diffuse and specular reflection exists in the depth perceptible range.

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