Unequal error protection applied to JPEG image transmission using turbo codes

Proceedings 2001 IEEE Information Theory Workshop (Cat. No.01EX494) Pub Date : 2001-09-02 DOI:10.1109/ITW.2001.955137

W. Xiang, S. A. Barbulescu, S. S. Pietrobon

引用次数: 34

Abstract

An investigation of unequal error protection (UEP) methods applied to JPEG image transmission using turbo codes is presented. The JPEG image is partitioned into two groups, i.e., DC components and AC components according to their respective sensitivity to channel noise. The highly sensitive DC components are better protected with a lower coding rate, while the less sensitive AC components use a higher coding rate. Simulation results are given to demonstrate how the UEP schemes outperforms the equal error protection (EEP) scheme in terms of bit error rate (BER) and peak signal to noise ratio (PSNR).

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不等错误保护在JPEG图像传输中的应用

研究了基于turbo码的JPEG图像传输中的不等错误保护(UEP)方法。JPEG图像根据各自对信道噪声的敏感性分为两组，即直流分量和交流分量。对高敏感的直流元件采用较低的编码速率，保护效果较好;对低敏感的交流元件采用较高的编码速率，保护效果较好。仿真结果表明，UEP方案在误码率(BER)和峰值信噪比(PSNR)方面优于等错保护(EEP)方案。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Proceedings 2001 IEEE Information Theory Workshop (Cat. No.01EX494)

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