Transform-domain Wyner-Ziv codec for video

Anne Aaron; Shantanu D. Rane; Eric Setton; Bernd Girod

doi:10.1117/12.527204

18 January 2004 Transform-domain Wyner-Ziv codec for video

Anne Aaron, Shantanu D. Rane, Eric Setton, Bernd Girod

Proceedings Volume 5308, Visual Communications and Image Processing 2004; (2004) https://doi.org/10.1117/12.527204
Event: Electronic Imaging 2004, 2004, San Jose, California, United States

Abstract

In current interframe video compression systems, the encoder performs predictive coding to exploit the similarities of successive frames. The Wyner-Ziv Theorem on source coding with side information available only at the decoder suggests that an asymmetric video codec, where individual frames are encoded separately, but decoded conditionally (given temporally adjacent frames) could achieve similar efficiency. We propose a transformdomain Wyner-Ziv coding scheme for motion video that uses intraframe encoding, but interframe decoding. In this system, the transform coefficients of a Wyner-Ziv frame are encoded independently using a scalar quantizer and turbo coder. The decoder uses previously reconstructed frames to generate side information to conditionally decode the Wyner-Ziv frames. Simulation results show significant gains above DCT-based intraframe coding and improvements over the pixel-domain Wyner-Ziv video coder.

Citation Download Citation

Anne Aaron, Shantanu D. Rane, Eric Setton, and Bernd Girod "Transform-domain Wyner-Ziv codec for video", Proc. SPIE 5308, Visual Communications and Image Processing 2004, (18 January 2004); https://doi.org/10.1117/12.527204

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