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Proceedings Paper

Noise analysis for motion estimation with skip mechanism
Author(s): Xiaoying Gan; Shiying Sun; Wentao Song
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Paper 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.

Paper Details

Date Published: 25 May 2004
PDF: 7 pages
Proc. SPIE 5473, Noise in Communication, (25 May 2004); doi: 10.1117/12.546895
Show Author Affiliations
Xiaoying Gan, Shanghai Jiaotong Univ. (China)
Shiying Sun, Shanghai Jiaotong Univ. (China)
Wentao Song, Shanghai Jiaotong Univ. (China)

Published in SPIE Proceedings Vol. 5473:
Noise in Communication
Langford B. White, Editor(s)

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