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: © 2003 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Faculty/School / Institute/Centre: Historic - Faculty of Engineering and Surveying - Department of Electrical, Electronic and Computer Engineering (Up to 30 Jun 2013)
Faculty/School / Institute/Centre: Historic - Faculty of Engineering and Surveying - Department of Electrical, Electronic and Computer Engineering (Up to 30 Jun 2013)
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 (2008): 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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