A Fast Codeword Search Algorithm for Vector Quantization

FONT face; Verdana; MU Chun-mei; HAN Shou-mei; FONT

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A Fast Codeword Search Algorithm for Vector Quantization

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- A Fast Codeword Search Algorithm for Vector Quantization
- Acta Electronica Sinica Vol. 38, Issue 2A, Pages: 218-220(2010)
- 作者机构：
  
  （北京科技大学信息学院，）,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN919.31
- Published：2010
- 稿件说明：
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FONT face, Verdana, MU Chun-mei, et al. A Fast Codeword Search Algorithm for Vector Quantization[J]. Acta Electronica Sinica, 2010, 38(2A): 218-220.
DOI：

FONT face, Verdana, MU Chun-mei, et al. A Fast Codeword Search Algorithm for Vector Quantization[J]. Acta Electronica Sinica, 2010, 38(2A): 218-220. DOI：

摘要

<FONT face=Verdana>传统矢量量化编码算法码字搜索范围较大，编码时间较长.文章提出一种基于不等式的矢量量化快速码字搜索算法.该算法将方差不等式和三角不等式引入范数排序算法(NOS)，有效减小了码字搜索范围.实验结果表明，重构图像峰值信噪比（PSNR）相同时，该算法编码时间较低.

Abstract

<FONT face=Verdana>The traditional vector quantization encoding algorithm is associated with large search range and long encoding time.A fast codeword search algorithm based on inequality for vector quantization is presented in this paper.The algorithm introduces variance inequality and triangle inequality into NOS

which effectively reduces the codeword searching range.Experimental results show that

the algorithm developed in this research can reduce the encoding time with the same PSNR.

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