Iterative decoding of JPEG coded images with channel coding

Xiang, Wei and Pietrobon, Steven S. and Barbulescu, Sorin Adrian (2003) Iterative decoding of JPEG coded images with channel coding. In: 10th IEEE International Conference on Telecommunications, Feb 2003, Papeete, Tahiti.

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Abstract

In this paper we investigate iterative decoding of JPEG coded images combined with channel coding over noisy channels. JPEG images use Huffman codes as the variable length coding scheme. These Huffman codes can be represented by an irregular trellis structure proposed by Balakirsky (1997). State transition probabilities can be derived from the irregular trellis and can be used as a priori information to help iterative decoding between channel and source APP decoders. Due to the poor distance property of original JPEG DC Huffman code, we proposed a symmetric RVLC with free distance d_f = 2 which can dramatically improve the system performance when iterative decoding is performed.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Deposited in accordance with the copyright policy of the publisher. ©2003 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.
Depositing User: Dr Wei Xiang
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Electrical, Electronic and Computer Engineering
Date Deposited: 17 Oct 2007 03:46
Last Modified: 02 Jul 2013 22:52
Uncontrolled Keywords: Huffman codes; channel coding; image coding; iterative decoding; multimedia communication; trellis codes; variable length codes
Fields of Research (FOR2008): 08 Information and Computing Sciences > 0804 Data Format > 080401 Coding and Information Theory
URI: http://eprints.usq.edu.au/id/eprint/3390

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