Adaptive search range decision algorithm for fast motion estimation

Won Son Song; Min-Cheol Hong

doi:10.1117/12.526075

18 January 2004 Adaptive search range decision algorithm for fast motion estimation

Won Son Song, Min-Cheol Hong

Proceedings Volume 5308, Visual Communications and Image Processing 2004; (2004) https://doi.org/10.1117/12.526075
Event: Electronic Imaging 2004, 2004, San Jose, California, United States

Abstract

In this paper, we present an adaptive motion search range decision algorithm for low-power video encoder. The performance, computation, and power consumption of block matching motion estimation algorithms in video coding standards depends on the motion search range. The motion search range to restrict the motion candidates controls the trade-off between the motion accuracy and the encoder complexity. The proposed algorithm adaptively determines the motion search range by local statistics of the neighbor blocks, resulting in dramatic reduction of computational cost of video encoder without the loss of coding efficiency. Experimental results show that the proposed algorithm speeds up encoding time by 1.5-2.8 times, and reduces power consumption to 2.5-7.0 times.

Citation Download Citation

Won Son Song and Min-Cheol Hong "Adaptive search range decision algorithm for fast motion estimation", Proc. SPIE 5308, Visual Communications and Image Processing 2004, (18 January 2004); https://doi.org/10.1117/12.526075

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