Efficient wavelet-domain motion estimation scheme for wavelet-based video coding

Lei Zhang; Guo-Fang Tu

doi:10.1117/1.2189291

1 June 2006 Efficient wavelet-domain motion estimation scheme for wavelet-based video coding

Lei Zhang, Guo-Fang Tu

Author Affiliations +

Optical Engineering, Vol. 45, Issue 6, 067004 (June 2006). https://doi.org/10.1117/1.2189291

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.

©(2006) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Lei Zhang and Guo-Fang Tu "Efficient wavelet-domain motion estimation scheme for wavelet-based video coding," Optical Engineering 45(6), 067004 (1 June 2006). https://doi.org/10.1117/1.2189291

Published: 1 June 2006

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KEYWORDS

Motion estimation

Video coding

Discrete wavelet transforms

Optimal filtering

Video

Wavelets

Linear filtering

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