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Depth image segmentation for improved virtual view image quality in 3-DTV

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5 Author(s)
Wei Wang ; Chinese Acad. of Sci., Beijing ; Longshe Huo ; Wei Zeng ; Qingming Huang
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A new 3-D data representation format consisting of monoscopic color video and its associated per-pixel depth information is a most promising technique applied in future three-dimensional television system. Despite many advantages of this representation, a large problem which is so-called disocclusion still exists when synthesizing one or more virtual views of a real-world scene by means of depth image based rendering technique. In this paper, we first give an interpretation to the occurrence of disocclusion from a mathematical view, and then analyze the reasons why smoothing depth image can have some effects on disocclusion and its several drawbacks. Finally, we propose a global processing method using depth image segmentation to solve the disocclusion. Analytical and experiment results show that our proposed method can improve the quality of virtual view images to a large extent, and no geometric distortion arises.

Published in:

Intelligent Signal Processing and Communication Systems, 2007. ISPACS 2007. International Symposium on

Date of Conference:

Nov. 28 2007-Dec. 1 2007