Efficient priority encoding transmission scheme based Wyner-Ziv coding and spatial scalability

Marie Ramon; Francois-Xavier Coudoux; Marc-Georges Gazalet

doi:10.1117/12.633199

24 June 2005 Efficient priority encoding transmission scheme based Wyner-Ziv coding and spatial scalability

Marie Ramon, Francois-Xavier Coudoux, Marc-Georges Gazalet

Proceedings Volume 5960, Visual Communications and Image Processing 2005; 59605K (2005) https://doi.org/10.1117/12.633199
Event: Visual Communications and Image Processing 2005, 2005, Beijing, China

Abstract

We present an original digital video transmission scheme based on Wyner-Ziv coding. The proposed scheme is derived from the previous work described in Reference⁴. In this case, the Forward Error Protection (FEP) scheme applies the general framework of systematic lossy source-channel coding to constitute the Wyner-Ziv description based on a coarse description of the transmitted sequence. In the present work, we propose to generate the supplementary bit stream from a low spatial resolution version of the transmitted video signal. The corresponding Wyner-Ziv description is used at the decoder in order to insure error free reconstruction of the base layer. First, we give an overview of error resilience techniques previously developed for robust video transmission. In particular, the systematic lossy error protection scheme in ⁴ is presented. Then the proposed transmission scheme is described. Preliminary results are finally presented in order to illustrate the interest of the proposed scheme. Further work and perspectives are also discussed.

Citation Download Citation

Marie Ramon, Francois-Xavier Coudoux, and Marc-Georges Gazalet "Efficient priority encoding transmission scheme based Wyner-Ziv coding and spatial scalability", Proc. SPIE 5960, Visual Communications and Image Processing 2005, 59605K (24 June 2005); https://doi.org/10.1117/12.633199

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