Noise analysis for motion estimation with skip mechanism

Xiaoying Gan; Shiying Sun; Wentao Song

doi:10.1117/12.546895

25 May 2004 Noise analysis for motion estimation with skip mechanism

Xiaoying Gan, Shiying Sun, Wentao Song

Proceedings Volume 5473, Noise in Communication; (2004) https://doi.org/10.1117/12.546895
Event: Second International Symposium on Fluctuations and Noise, 2004, Maspalomas, Gran Canaria Island, Spain

Abstract

Motion estimation (ME) is a computationally intensive task during video compression. Although diamond search (DS) is an efficient way to speed up block-matching process, skip mechanism (Skip-M) combined with DS will give further speed-up. However, how to choose threshold in this mechanism is essential to improvement magnitude. In this paper, we propose a scheme in which the threshold is chosen based on analysis of noise variance due to video devices. Simulation results show the proposed algorithm can remarkably reduce the time consumption with only marginal performance penalty.

Citation Download Citation

Xiaoying Gan, Shiying Sun, and Wentao Song "Noise analysis for motion estimation with skip mechanism", Proc. SPIE 5473, Noise in Communication, (25 May 2004); https://doi.org/10.1117/12.546895

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