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Proceedings Paper

Investigation on the effect of disparity-based asymmetrical filtering on stereoscopic video
Author(s): Gi Mun Um; Filippo Speranza; Liang Zhang; Wa James Tam; Ron Renaud; Lew B. Stelmach; Chung-Hyun Ahn
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Paper Abstract

Current binocular stereoscopic displays cause visual discomfort when the objects with large disparities are present in the scene. With this technique, the improvement of visual comfort has been reported by blurring far background and foregrounds in the scene. However, this technique has a drawback of degrading overall image quality. To lesson visual discomfort caused by large disparities while maintaining high-perceived image quality, we use a novel disparity-based asymmetrical filtering technique. Asymmetrical filtering, which refers to the filtering applied to the image of one eye only, has been showen to maintain the sharpness of a stereoscopic image, provided that the amount of filtering is low. Disparity-based asymmetrical filtering usese the disparity information in a stereoscopic image for controlling the severity of blurring. We investigated the effects of this technique on stereoscopic video by measuring visual comfort and apparent sharpness. Our results indicate that disparity-based asymmetrical filtering does not always improve visual comfort but it maintains image quality.

Paper Details

Date Published: 23 June 2003
PDF: 9 pages
Proc. SPIE 5150, Visual Communications and Image Processing 2003, (23 June 2003); doi: 10.1117/12.503173
Show Author Affiliations
Gi Mun Um, Electronics and Telecommunications Research Institute (South Korea)
Filippo Speranza, Communications Research Ctr. Canada (Canada)
Liang Zhang, Communications Research Ctr. Canada (Canada)
Wa James Tam, Communications Research Ctr. Canada (Canada)
Ron Renaud, Communications Research Ctr. Canada (Canada)
Lew B. Stelmach, Communications Research Ctr. Canada (Canada)
Chung-Hyun Ahn, Electronics and Telecommunications Research Institute (South Korea)

Published in SPIE Proceedings Vol. 5150:
Visual Communications and Image Processing 2003
Touradj Ebrahimi; Thomas Sikora, Editor(s)

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