New quantizer design with evolutionary algorithm

被引：0
|
作者：
Zhang, Gao [1 ]
Yu, Song-Yu [1 ]
机构：
[1] Shanghai Jiaotong Univ., Shanghai 200030, China
来源：
Tien Tzu Hsueh Pao/Acta Electronica Sinica | 2001年 / 29卷 / 08期
关键词：
Evolutionary algorithms - Image coding - Optimization - Signal distortion;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Evolutionary algorithm is used to optimize vector quantizer design, and a method to select the survived off-spring codevectors based on equidistortion is introduced. Those selected codevectors are used to adjust parent codebook to decrease the sub-region distortion. The experimental results prove that the algorithm has better improved the expected distortion by overcoming the local optimality of LBG algorithm.
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页码：1101 / 1103
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