A Multiple Description Method for Wavelet Based Image Coding

Aashwin, AC and Ramakrishnan, KR and Srinivasan, SH (2002) A Multiple Description Method for Wavelet Based Image Coding. In: Proceedings. 2002 International Conference on Image Processing. 2002, 22-25 September, New York,USA, Vol.2, 709-712.

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Abstract

We propose a new multiple description method for wavelet transform coded images. The partitioning of the coefficients at the encoder is combined with concealment at the decoder to produce descriptions. An optimal concealment method for wavelet coefficients is derived based on statistical characteristics. Concealment in the LL subband is treated differently and is based on its smoothness property. We have designed a coder for wireless image transmission which emphasizes the need for source and channel coding interaction based on residual redundancy. Optimal channel rate allocation is derived depending upon source significance and channel state information. Simulations for wireless transmission have shown promising results.

Item Type:	Conference Paper
Publisher:	IEEE
Additional Information:	Copyright 1990 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	05 Feb 2007
Last Modified:	29 Feb 2012 04:49
URI:	http://eprints.iisc.ac.in/id/eprint/5239

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