Application of the Lifting Scheme to variable filter band discrete wavelet transform

Author

Zhong Zhang ; Hosokawa, Shotaro ; Toda, Hiroaki ; Imamura, Takashi ; Miyake, Tetsuo

Author_Institution

Toyohashi Univ. of Technol., Toyohashi, Japan

fYear

2013

fDate

14-17 July 2013

Firstpage

103

Lastpage

109

Abstract

A variable filter band discrete wavelet transform (VFB-DWT) is a kind of discrete wavelet transform (DWT), which has variable band filter, and it can extract desired signal. However, its calculation speed becomes slower than that of the base DWT. In this study, in order to improve the calculation speed of the VFB-DWT, a complex wavelet, RI-Spline wavelet is used to base DWT by Lifting Scheme, and the VFB-DWT is achieved by added the band-pass and band-reject filters on the CDWT. As a result of numerical experimentation, it was shown that signal extraction can be performed correctly.

Keywords

band-pass filters; band-stop filters; discrete wavelet transforms; feature extraction; splines (mathematics); CDWT; RI-spline wavelet; VFB-DWT; band-pass filter; band-reject filter; lifting scheme; signal extraction; variable filter band discrete wavelet transform; Abstracts; Boolean functions; Data structures; Discrete wavelet transforms; Lifting Scheme; RI-Spline wavelet; suitable basis; variable filter band discrete wavelet transform;

fLanguage

English

Publisher

ieee

Conference_Titel

Wavelet Analysis and Pattern Recognition (ICWAPR), 2013 International Conference on

Conference_Location

Tianjin

ISSN

2158-5695

Print_ISBN

978-1-4799-0415-0

Type

conf

DOI

10.1109/ICWAPR.2013.6599300

Filename

6599300