Title :
Channel adapted multiple description coding scheme using wavelet transform
Author :
Pereira, Manuela ; Antonini, Marc ; Barlaud, Michel
Author_Institution :
CNRS, Univ. of Nice-Sophia Antipolis, Sophia Antipolis, France
Abstract :
A challenge of image communication over unreliable channels is to achieve good compression rates and be effective in presence of channel failures. In this work we use the multiple description coding (MDC) techniques, based on wavelet transforms, that have been shown to be powerful against channel failures. We propose a bit allocation procedure that dispatch redundancy between the different channels when compressing to a target bit rate with a bounded side distortion. In this way we develop a MDC scheme well adapted to channel noise.
Keywords :
adaptive codes; channel coding; data compression; image coding; redundancy; transform coding; visual communication; wavelet transforms; adaptive codes; bit allocation procedure; bounded side distortion; channel adapted multiple description coding; channel failures; channel noise; compression rates; image communication; redundancy; unreliable channels; wavelet transform; Bit rate; Data mining; Decoding; Image coding; Image communication; Image reconstruction; Laboratories; Noise robustness; Redundancy; Wavelet transforms;
Conference_Titel :
Image Processing. 2002. Proceedings. 2002 International Conference on
Print_ISBN :
0-7803-7622-6
DOI :
10.1109/ICIP.2002.1039921