跳到主要导航 跳到搜索 跳到主要内容

On optimal prefiltering for wavelet coefficient computation

  • University of Southern California

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

An algorithm was proposed by Shensa for computing the coefficients of wavelet series transform (WST) or continuous wavelet transform (CWT). With the Shensa algorithm, we first perform filtering on a sampled discrete-time signal and then apply the Mallat's discrete wavelet transform (DWT) algorithm to the filtered sequence, where the prefiltering is used to reduce the approximation error between the computed and desired coefficients. In this research, we consider the design of optimal causal and noncausal FIR prefilters which reduce the approximation error as much as possible. Numerical experiments are provided to demonstrate the performance of these optimal prefilters.

源语言英语
主期刊名Conference Record of the 26th Asilomar Conference on Signals, Systems and Computers, ACSSC 1992
出版商IEEE Computer Society
135-139
页数5
ISBN(电子版)0818631600
DOI
出版状态已出版 - 1992
已对外发布
活动26th Asilomar Conference on Signals, Systems and Computers, ACSSC 1992 - Pacific Grove, 美国
期限: 26 10月 199228 10月 1992

出版系列

姓名Conference Record - Asilomar Conference on Signals, Systems and Computers
1
ISSN(印刷版)1058-6393
ISSN(电子版)2576-2303

会议

会议26th Asilomar Conference on Signals, Systems and Computers, ACSSC 1992
国家/地区美国
Pacific Grove
时期26/10/9228/10/92

指纹

探究 'On optimal prefiltering for wavelet coefficient computation' 的科研主题。它们共同构成独一无二的指纹。

引用此