Residual Wavelet-Domain DVC Using an Optimized TCQ

An Hong Wang; Yi Zheng; Zhi Hong Li; Yu Yang Wang

doi:10.4028/www.scientific.net/AMM.58-60.2079

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 58-60Residual Wavelet-Domain DVC Using an Optimized TCQ

Residual Wavelet-Domain DVC Using an Optimized TCQ

Abstract:

Nowadays, the rate-distortion performance of distributed video coding (DVC) is not satisfied despite its distinct contribution to low-complexity encoding. This paper presents a new residual DVC using an optimized trellis coded quantization (TCQ) to improve the performance of the current schemes. H.264/AVC intra-frame coding is firstly used to obtain the referenced frame, and then the residual between Wyner-Ziv frame and the referenced frame is Wyner-Ziv encoded with a proposed optimized TCQ which consists of the improved quadtree and the improved TCQ, both considering the characters of wavelet coefficients in different sub-bands. Experimental results show that the proposed scheme outperforms the referenced in rate-distortion performance, and the goal of low-complexity encoding is achieved.

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Periodical:

Applied Mechanics and Materials (Volumes 58-60)

Pages:

2079-2084

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.58-60.2079

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Online since:

June 2011

Authors:

An Hong Wang, Yi Zheng, Zhi Hong Li, Yu Yang Wang

Keywords:

Distributed Video Coding, Optimized TCQ, Quadtree Scanning

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