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Proceedings Paper

Adaptive reconstruction for Wyner-Ziv video coders
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Paper Abstract

In contrast to conventional video coding, Wyner-Ziv video coders perform simple intra-frame encoding and complex inter-frame decoding using side information. An important process in Wyner-Ziv decoding is the reconstruction process. So far, two main reconstructions have been used: the Maximum a Posteriori (MAP) reconstruction and the Minimum Mean Square Error (MMSE) reconstruction. In this paper, we study the MAP and MMSE reconstructions for both Pixel-Domain and Transform-Domain Wyner-Ziv video coders. We also present a new reconstruction function for Pixel-Domain Wyner-Ziv video coders that adapts to the local accuracy of the side information. Experimental results show that our adaptive reconstruction provides improvements over both the MAP and the MMSE reconstructions.

Paper Details

Date Published: 19 January 2009
PDF: 9 pages
Proc. SPIE 7257, Visual Communications and Image Processing 2009, 725708 (19 January 2009); doi: 10.1117/12.807270
Show Author Affiliations
Antoni Roca, Univ. Politécnica de Valencia (Spain)
Josep Prades-Nebot, Univ. Politécnica de Valencia (Spain)
Edward J. Delp, Purdue Univ. (United States)

Published in SPIE Proceedings Vol. 7257:
Visual Communications and Image Processing 2009
Majid Rabbani; Robert L. Stevenson, Editor(s)

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