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25 May 2004 Noise analysis for motion estimation with skip mechanism
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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.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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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