Wavelet-based highly efficient scalable video coding

Jiangshan Zhang; Guang-Xi Zhu

doi:10.1117/12.480487

22 August 2002 Wavelet-based highly efficient scalable video coding

Jiangshan Zhang, Guang-Xi Zhu

Proceedings Volume 4911, Wireless and Mobile Communications II; (2002) https://doi.org/10.1117/12.480487
Event: Asia-Pacific Optical and Wireless Communications 2002, 2002, Shanghai, China

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.

Citation Download Citation

Jiangshan Zhang and Guang-Xi Zhu "Wavelet-based highly efficient scalable video coding", Proc. SPIE 4911, Wireless and Mobile Communications II, (22 August 2002); https://doi.org/10.1117/12.480487

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