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ICMCS
2007
IEEE

Enhanced Reconstruction of the Quantised Transform Coefficients for WYNER-ZIV Coding

14 years 6 months ago
Enhanced Reconstruction of the Quantised Transform Coefficients for WYNER-ZIV Coding
In recent years, the Distributed Video Coding (DVC) has become a more and more popular research area. In the current work, the framework of transform domain Wyner-Ziv coding of video frames is considered, following the scheme developed in the EU Project DISCOVER [1]. While some frames are conventionally coded as key frames, other frames are Wyner-Ziv encoded using turbo codes. After the generation of side information and turbo decoding process at the decoder, the quantisation indices of the quantised transform coefficients of Wyner-Ziv frames are available. In this paper, we devote our attention to the reconstruction of quantised transform coefficients resulting in a minimised quantisation error energy, where coding gains of up to 0.9 dB are obtained.
Yuri Vatis, Sven Klomp, Jörn Ostermann
Added 03 Jun 2010
Updated 03 Jun 2010
Type Conference
Year 2007
Where ICMCS
Authors Yuri Vatis, Sven Klomp, Jörn Ostermann
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