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Ultra Low-Complexity Fast Variable Block Size Motion Estimation Algorithm in H.264/AVC

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4 Author(s)
Yang Song ; Waseda Univ, Tokyo ; Zhenyu Liu ; Ikenaga, T. ; Goto, S.

Variable block size motion estimation (VBSME) is the most computation consuming part in the newest H.264 /AVC video coding standard. To reduce computation, an ultra low-complexity fast VBSME algorithm is proposed in this paper. Different to previous fast algorithms which separately pressed the 7 block modes, in the presented algorithm, all the block modes are simultaneously calculated for most of the search points, and thus the SADs can be reused by all blocks. Moreover, a low-pass filter based pixel decimation is also introduced to decrease the matching cost. Experiments show that the proposed fast VBSME algorithm can reduce the computation to about 0.2% of fast full search (FFS) with robust image quality.

Published in:

Multimedia and Expo, 2007 IEEE International Conference on

Date of Conference:

2-5 July 2007