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Optical Engineering

Robust image transmission over ATM networks based on scalable wavelet coding
Author(s): Wen-Jyi Hwang; Chung-Kun Wu; Ching-Fung Chine
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Paper Abstract

We present a novel method for scalable and robust image transmission over ATM networks. The algorithm is based on a scalable set partitioning in hierarchical trees (SSPIHT) coding scheme, in which the encoded image bit streams for packeting and transmission are divided into a number of layers. By accumulating different numbers of layers in the decoder side, images with different resolutions and distortions can be reconstructed. Decoders having different capacities therefore can share the same encoder. In addition, these layers have different degrees of significance so that transmission errors in insignificant layers will not cause severe degradation in performance for image reconstruction. Finally, we describe three basic schemes for the transmission of SSPIHT-encoded cells over ATM channels. Simulation results show that the algorithm is effective for the applications where robust and scalable transmissions are desired.

Paper Details

Date Published: 1 September 2002
PDF: 8 pages
Opt. Eng. 41(9) doi: 10.1117/1.1496113
Published in: Optical Engineering Volume 41, Issue 9
Show Author Affiliations
Wen-Jyi Hwang, Chung Yuan Christian Univ. (Taiwan)
Chung-Kun Wu, Chung Yuan Christian Univ. (Taiwan)
Ching-Fung Chine, Chung Yuan Christian Univ. (Taiwan)


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