EURASIP Journal on Image and Video Processing
Volume 2007 (2007), Article ID 31319, 12 pages
doi:10.1155/2007/31319
Research Article
A Motion-Compensated Overcomplete Temporal Decomposition for Multiple Description Scalable Video Coding
Signal and Image Processing Department, École Nationale Supérieure des Télécommunications (ENST), 46 Rue Barrault, Paris Cédex 13 75634, France
Received 26 August 2006; Revised 21 December 2006; Accepted 23 December 2006
Recommended by James E. Fowler
Abstract
We present a new multiple-description coding (MDC) method for scalable video, designed for transmission over error-prone networks. We employ a redundant motion-compensated scheme derived from the Haar multiresolution analysis, in order to build temporally correlated descriptions in a t+2D video coder. Our scheme presents a redundancy which decreases with the resolution level. This is achieved by additionally subsampling some of the wavelet temporal subbanbds. We present an equivalent four-band lifting implementation leading to simple central and side decoders as well as a packet-based reconstruction strategy in order to cope with random packet losses.