[1]罗雪晖,李 霞,张基宏.一种改进的LBG快速算法[J].深圳大学学报理工版,2002,19(4):54-59.
 LUO Xue-hui,LI Xia,ZHANG Ji-hong.A Fast Improved LBG Algorithm[J].Journal of Shenzhen University Science and Engineering,2002,19(4):54-59.
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一种改进的LBG快速算法()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第19卷
期数:
2002年4期
页码:
54-59
栏目:
光电与信息工程
出版日期:
2002-11-30

文章信息/Info

Title:
A Fast Improved LBG Algorithm
文章编号:
1000-2618( 2002) 04-0054-06
作者:
罗雪晖 李 霞 张基宏
深圳大学信息工程学院, 深圳 518060
Author(s):
LUO Xue-hui LI Xia ZHANG Ji-hong
College of Information Engineering Shenzhen University Shenzhen 518060 P . R . China
关键词:
矢量量化LBG 算法 空胞腔 熵序列
Keywords:
vector quantization LBG algorithm empty voronoi entropy sequence
分类号:
TN 911
文献标志码:
A
摘要:
LBG 算法是矢量量化码书设计的经典算法.针对其空胞腔问题提出一种改进的 LBG 算法,并以熵序列收敛作为新的算法停止判据.实验表明,该算法具有收敛速度快、码书性能佳等优点, 该算法的PSNR比传统的LBG算法提高 2. 74dB.
Abstract:
LBG algorithm is a classical algorithm for vector quantization . In this paper, a fast improved LBG algorithm is proposed for solving the empty voronoi problems commonly encountered in the LBG algorithm . The criteria for the termination of the algorithm is based on the convergence of entropy sequence. Simulation results show the algorithm has fast convergence rate and excellent performance for codebook design . The improvement of PSNR for the proposed algorithm exceed 2.74 dB compared with that of the LBG algorithm .

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更新日期/Last Update: 2015-12-11