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Erschienen in:
2005 | OriginalPaper | Buchkapitel
Fast Motion Estimation Scheme for Real Time Multimedia Streaming with H.264
verfasst von : Chan Lim, Hyun-Soo Kang, Tae-Yong Kim
Erschienen in: Computational Intelligence and Security
Verlag: Springer Berlin Heidelberg
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In this paper, we propose a novel fast motion estimation algorithm based on successive elimination algorithm (SEA), which can dramatically reduce complexity of the variable block size motion estimation by removing the unnecessary computation of SAD in H.264 encoder. The proposed method, which accumulates current sum norms and pre-computed SAD for the bigger block sizes than 4×4 drives tighter bound in the inequality than an ordinary SEA depending on the availability of SAD. Experimental results explain that our method reduces computation complexity. In addition, the proposed method is an extended version of the rate constrained block matching for variable block-sized applications. It surely works on variable block-based motion estimation with just a little degradation.