Error resilient transmission of SPIHT coded images over fading channels

Author

Yap, C.W. ; Ngan, K.N.

Author_Institution

Dept. of Electr. & Electron. Eng., Western Australia Univ., Nedlands, WA, Australia

Volume

148

Issue

1

fYear

2001

fDate

2/1/2001 12:00:00 AM

Firstpage

59

Lastpage

64

Abstract

The paper introduces a method of transmitting error resilient SPIHT coded images over highly error prone Rayleigh fading channels. First, the source significance of the SPIHT coded output is obtained. Based on the significance of the bits, the channel coding is varied accordingly. Channel coding consists of a mixture of rate compatible punctured convolutional (RCPC) codes and interleaving to combat the burst errors produced by the fading channel. An additional error concealment technique is also introduced into the SPIHT decoder to improve its results in cases where errors cause the corruption of the average luminance level during decoding. Comparison with using RS block codes at a total transmission rate of 1.0 bits/pixel is carried out over fading channels with very high error rates to show the superiority of this method over methods using burst error codes

Keywords

Rayleigh channels; channel coding; convolutional codes; data compression; decoding; image coding; interleaved codes; source coding; transform coding; visual communication; wavelet transforms; RCPC codes; RS block codes; Rayleigh fading channels; SPIHT coded images; SPIHT decoder; average luminance level; burst error codes; burst errors; channel coding; decoding; error concealment; error rates; error resilient transmission; interleaving; rate compatible punctured convolutional codes; source coding; source significance information; transmission rate; wavelet-based compression;

fLanguage

English

Journal_Title

Vision, Image and Signal Processing, IEE Proceedings -

Publisher

iet

ISSN

1350-245X

Type

jour

DOI

10.1049/ip-vis:20010141

Filename

918404