24.txt

来自「This complete matlab for neural network」· 文本 代码 · 共 35 行

发信人: ASSP (SAP), 信区: DataMining
标  题: 谁能帮我下一篇文章，急
发信站: 南京大学小百合站 (Wed Mar 20 20:45:59 2002), 站内信件


Using an Enhanced LBG Algorithm to Reduce the Codebook Error in Vector 
Quantization

J?rg Haber and Hans-Peter Seidel 
Max-Planck-Institut für Infomatik

In this paper, we present a modification of the well-known LBG algorithm
 for the generation of codebooks in vector quantization. Our algorithm,
 denoted as the ILBG algorithm, reduces the codebook error of the LBG 
algorithm drastically in typical applications. In our experiments, we 
were able to achieve up to 75% reduction of the codebook error in only a
 few additional iteration steps. In the context of lossy image 
compression, this error reduction leads to an increase of 2-3dB of the 
peak-signal-to-noise-ratio (PSNR) in turn.

Keywords: LBG algorithm, vector quantization, codebook error reduction

Proceedings of the Computer Graphics International (CGI'00) 
Copyright (c) 2000 Institute of Electrical and Electronics Engineers, 
Inc. All rights reserved.

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http://www.computer.org/proceedings/cgi/0643/06430099abs.htm

谢谢。 我的email是 [e-mail]
哪位能找到的话，email到我的信箱里。谢谢

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