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Optical Engineering

Genetic entropy-constrained vector quantizer design algorithm
Author(s): Wen-Jyi Hwang; Sheng-Lin Hong
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Paper Abstract

A novel variable-rate vector quantizer (VQ) design algorithm, which is a hybrid approach combining a genetic algorithm with the entropy-constrained VQ (ECVQ) algorithm is presented. The proposed technique outperforms the ECVQ algorithm in the sense that it reaches a nearby global optimum rather than a local one. Simulation results show that, when applied to image coding, the technique achieves higher peak SNR (PSNR) and image quality than techniques using the ECVQ algorithm.

Paper Details

Date Published: 1 February 1999
PDF: 7 pages
Opt. Eng. 38(2) doi: 10.1117/1.602081
Published in: Optical Engineering Volume 38, Issue 2
Show Author Affiliations
Wen-Jyi Hwang, Chung Yuan Christian Univ. (Taiwan)
Sheng-Lin Hong, Chung Yuan Christian Univ. (Taiwan)

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