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Proceedings Paper

Wavelet-based highly efficient scalable video coding
Author(s): Jiangshan Zhang; Guang-Xi Zhu
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Paper Abstract

This paper proposes an efficient wavelet-based coding scheme with fine grain scalability, where the base layer is encoded with a novel designed of wavelet-based coder, and the enhancement layer is encoded with progressive fine granularity scalable (PFGS) coding. This algorithm involves multi-frame motion compensation, rate-distortion optimizing strategy with Lagrangian cost function and context-based adaptive arithmetic coding. In order to improve efficiency ofthe enhancement layer coding, an improved motion estimation scheme that uses both information from the base layer and the enhancement layer is also proposed in this paper. The novel designed of wavelet-based coder significantly improves the coding efficiency ofthe base layer compared with MPEG-4 ASP (Advanced Simple Profile) and H.26L TML9. The PFGS coding is a significant improvement over MPEG-4 FGS at the enhancement layer. Experiments show that single layer coding efficiency gain of the proposed scheme is about 2.0-3.0dB and 0.3-1.0dB compared with MPEG-4 ASP and H.26L TML9, respectively. The overall coding efficiency gain of the proposed scheme is about 4.0-5.0dB compared with MPEG-4 FGS.

Paper Details

Date Published: 22 August 2002
PDF: 6 pages
Proc. SPIE 4911, Wireless and Mobile Communications II, (22 August 2002); doi: 10.1117/12.480487
Show Author Affiliations
Jiangshan Zhang, Huazhong Univ. of Science and Technology (China)
Guang-Xi Zhu, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 4911:
Wireless and Mobile Communications II
Hequan Wu; Chih-Lin I; Jari Vaario, Editor(s)

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