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Optical Engineering

Efficient wavelet-domain motion estimation scheme for wavelet-based video coding
Author(s): Lei Zhang; Guo-Fang Tu
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Paper Abstract

Motion estimation is a key element of the video coder, which heavily affects the performance of video coding. However, the most significant problem of the discrete wavelet transform is the shift-variant property, which makes the wavelet-domain motion estimation inaccurate. To eliminate the influence of shift variance, an optimal synthesis filtering method is introduced and an efficient motion estimation scheme using the proposed method is presented, which can perform the motion estimation accurately. The experiment results show that the proposed motion estimation scheme outperforms the other wavelet-domain motion estimation schemes by 0.7 dB and has moderate complexity.

Paper Details

Date Published: 1 June 2006
PDF: 7 pages
Opt. Eng. 45(6) 067004 doi: 10.1117/1.2189291
Published in: Optical Engineering Volume 45, Issue 6
Show Author Affiliations
Lei Zhang, Graduate School of Chinese Academy of Sciences (China)
Guo-Fang Tu, Graduate School (China)

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