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Distributed video coding for wireless multi-camera networks

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3 Author(s)
Nantheera Anantrasirichai ; University of Bristol, Woodland Road, BS8 1UB, UK ; Dimitris Agrafiotis ; Dave Bull

In this paper, we present a novel distributed multiview video compression framework for surveillance purposes that employs a concealment based approach for the generation of the side information through the use of hybrid Key/Wyner-Ziv frames. Two multi-view coding structures are proposed in order to better exploit the inter-camera correlation present at the decoder. We additionally introduce a number of enhancements including use of spatio-temporal concealment for generating the side information on a MB basis, mode selection for switching between the two concealment approaches and for deciding how the correlation noise is estimated, local (MB wise) correlation noise estimation and modified B frame quantisation. The results presented indicate considerable improvement (up to 23%) compared to corresponding frame based schemes and improvements of up to 1.4 dB relative to an equivalent intra-view codec.

Published in:

Visual Information Engineering, 2008. VIE 2008. 5th International Conference on

Date of Conference:

July 29 2008-Aug. 1 2008