| 基于微粒群的矢量量化码书设计算法 |
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| 引用本文： | 董恩清,蔡光跃.基于微粒群的矢量量化码书设计算法[J].微电子学与计算机,2008,25(6). |
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| 作者姓名： | 董恩清 蔡光跃 |
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| 作者单位： | 山东大学威海分校,信息工程学院,山东,威海,264209 |
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| 摘 要： | 针对在LBG算法中存在初始码书的选择极易影响码书训练的收敛速度和最终码书性能的缺陷,提出了一种基于微粒群的矢量量化码书设计算法.首先产生具有一定全局性特点的初始码书,然后再应用LBG算法进行优化得到同时具有局部特性的码书.实验结果验证了该算法的合理性.
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| 关 键 词： | 微粒群算法 LBG算法 码书设计 |
Codebook Design Algorithm for Vector Quantization Based on Particle Swarm Optimization |
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| DONG En-qing,CAI Guang-yue.Codebook Design Algorithm for Vector Quantization Based on Particle Swarm Optimization[J].Microelectronics & Computer,2008,25(6). |
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| Authors: | DONG En-qing CAI Guang-yue |
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| Abstract: | A codebook design algorithm for vector quantization based on particle swarm optimization(PSO)is proposed. To solve the shortcoming that the initial codebook selection affects the convergence speed of codebook training and the per- formance of the final codebook,the initial codebook with global characteristics is produced using PSO,and iteratively pro- duce final codebook with local characteristics using Linde-Buzo-Gray(LBG).Both of the theory and practical effect show the rationality of the proposed algorithm. |
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| Keywords: | particle swarm optimization LBG algorithm codebook design |
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