Joint source-channel fractal image coding with unequal error protection

作     者：Charfi, Y Stankovic, VM Hamzaoui, R Haouari, A Saupe, D 

作者机构：Univ Constance Dept Comp & Informat Sci D-78457 Constance Germany Univ Mohammed 5 LEESA Fac Sci Rabat Morocco 

出 版 物：《OPTICAL ENGINEERING》 (光学工程)

年 卷 期：2002年第41卷第12期

页      面：3168-3176页

核心收录：

学科分类：08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 081102[工学-检测技术与自动化装置] 0811[工学-控制科学与工程] 0702[理学-物理学] 

基　　金：Deutsche Fors-chungsgesellschaft 

主　　题：fractal image compression joint source-channel coding unequal error protection 

摘      要：We propose a joint source-channel coding system for fractal image compression. We allocate the available total bit rate between the source code and the channel code using a Lagrange multiplier optimization technique. The principle of the proposed unequal error protection strategy is to partition the information bits into sensitivity classes and to assign one code from a range of error-correcting codes to each sensitivity class in a nearly optimal way. Experimental results show that joint source-channel coding with fractal image compression is feasible, leads to efficient protection strategies, and outperforms previous works in this field that covered only channel coding with a fixed source rate. (C) 2002 Society of Photo-Optical Instrumentation Engineers.