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Systematic lossy forward error protection for error-resilient digital video broadcasting -a wyner-ziv coding approach

13 years 3 months ago
Systematic lossy forward error protection for error-resilient digital video broadcasting -a wyner-ziv coding approach
We present a practical scheme for error-resilient digital video broadcasting, using the Wyner-Ziv coding paradigm. We apply the general framework of systematic lossy source-channel coding to generate a supplementary bitstream that can correct transmission errors in the decoded video waveform up to a certain residual distortion. The systematic portion consists of a conventional MPEG-2 bitstream, which is transmitted over the error-prone channel without forward error correction. The supplementary bitstream is a low rate representation of the transmitted video sequence generated using Wyner-Ziv encoding. We use the received error-prone MPEG-2 prediction error signal as side information to decode the Wyner-Ziv bits. The decoder combines the error-prone side information and the Wyner-Ziv description to yield an improved decoded video signal. We describe a system that uses an embedded Wyner-Ziv codec to achieve graceful quality degradation without the need for a layered representation of th...
Shantanu Rane, Anne Aaron, Bernd Girod
Added 24 Oct 2009
Updated 24 Oct 2009
Type Conference
Year 2004
Where ICIP
Authors Shantanu Rane, Anne Aaron, Bernd Girod
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