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A Quadtree-based Disparity Estimation for 3D Intermediate View Synthesis  

성준호 (연세대학교 전기전자공학과)
이성주 (삼성전자(주) DM총괄)
김성식 (삼성전자(주) DM총괄)
하태현 (연세대학교 전기전자공학과)
김재석 (연세대학교 전기전자공학과)
Publication Information
Journal of Broadcast Engineering / v.9, no.3, 2004 , pp. 257-273 More about this Journal
Abstract
In stereoscopic or multi-view three dimensional display systems, the synthesis of intermediate sequences is inevitably needed to assure look-around capability and continuous motion parallax so that it could enhance comfortable 3D perception. The quadtree-based disparity estimation is one of the most remarkable methods for synthesis of Intermediate sequences due to the simplicity of its algorithm and hardware implementation. In this paper, we propose two ideas in order to reduce the annoying flicker at the object boundaries of synthesized intermediate sequences by quadtree-based disparity estimation. First, new split-scheme provides more consistent auadtree-splitting during the disparity estimation. Secondly, adaptive temporal smoothing using correlation between present frame and previous one relieves error of disparity estimation. Two proposed Ideas are tested by using several stereoscopic sequences, and the annoying flickering is remarkably reduced by them.
Keywords
Flicker; intermediate view; multi-view; quadtree; steroscopic;
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