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http://dx.doi.org/10.5392/JKCA.2010.10.6.035

Block-Centered Symmetric Motion Estimation for Side Information Generation in Distributed Video Coding  

Lee, Chan-Hee (한밭대학교 정보통신전문대학원 멀티미디어공학과)
Kim, Jin-Soo (한밭대학교 정보통신전문대학원 멀티미디어공학과)
Publication Information
The Journal of the Korea Contents Association / v.10, no.6, 2010 , pp. 35-42 More about this Journal
Abstract
Side information generation techniques play a great role in determining the overall performance of the DVC (Distributed Video Coding) coding system. Most conventional techniques for side information generation are mainly based on the block matching algorithm with symmetric motion estimation between the previously reconstructed key frames. But, these techniques tend to show mismatches between the motion vectors and the real placements of moving objects. So these techniques need to be modified so as to search well the real placements of moving objects. To overcome this problem, this paper proposes a block-centered symmetric motion estimation technique which uses the same coordinates with the given block. Through computer simulations, it is shown that the proposed algorithm outperforms the conventional schemes in the objective quality.
Keywords
DVC; Side Information; Wyner-Ziv;
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