Mr. Kai Lam Tang Profile

Kai Lam Tang

at Chinese Univ of Hong Kong

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Proceedings Article | 29 January 2007 Paper

Enhanced SAD reuse fast motion estimation

Kai Lam Tang, King Ngan

Proceedings Volume 6508, 65081M (2007) https://doi.org/10.1117/12.702811

KEYWORDS: Motion estimation, Video coding, Video, Distortion, Stars, Standards development, Video compression, Image processing, Diamond, Diamond patterning

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H.264 is a new video coding standard which outperforms the previous video coding standards. It uses many advanced video coding techniques to improve the coding performance. Variable block size motion estimation (ME) is one of the techniques that contributes to the excellent performance of H.264 but it is computational intensive. In this paper, a fast SAD reuse ME algorithm is proposed which reuses SAD within the same macroblock and uses pattern-based ME and refinement search to reduce the computational complexity of variable block size ME with a little degradation of coding performance in terms of PSNR and bitrate. Experimental results show that the proposed algorithm reduces the ME time by more than 90% on average with only a little degradation of coding performance when comparing with that of the Fast Full Search (FFS).

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