DocumentCode
1844663
Title
Linear parameterization of orthogonal wavelets
Author
Lu, W.-S.
Author_Institution
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
Volume
2
fYear
1997
fDate
2-5 Nov. 1997
Firstpage
1249
Abstract
This paper describes a new method for the parameterization of compactly supported orthogonal wavelet filters. The well-known Daubechies (1988) orthogonal wavelets can be viewed as a subset in the parameterized orthogonal wavelet class, which processes a maximum number of vanishing moments for a given filter length. Unlike the existing parameterizations of orthogonal wavelets, the proposed method does the parameterization through a linear characterization of all halfband filters. The paper also includes examples of optimal designs of orthogonal wavelets obtained using this parameterization technique in conjunction with efficient linear programming or quadratic programming, and application of these wavelets to signal compression and signal denoising.
Keywords
circuit optimisation; data compression; filtering theory; linear programming; quadratic programming; transform coding; wavelet transforms; Daubechies orthogonal wavelets; compactly supported orthogonal wavelet filters; filter length; halfband filters; linear parameterization; linear programming; optimal designs; parameterized orthogonal wavelet; quadratic programming; signal compression; signal denoising; vanishing moments; Digital signal processing; Ear; Finite impulse response filter; Frequency; Linear programming; Nonlinear filters; Quadratic programming; Signal denoising; Signal design; Wavelet analysis;
fLanguage
English
Publisher
ieee
Conference_Titel
Signals, Systems & Computers, 1997. Conference Record of the Thirty-First Asilomar Conference on
Conference_Location
Pacific Grove, CA, USA
ISSN
1058-6393
Print_ISBN
0-8186-8316-3
Type
conf
DOI
10.1109/ACSSC.1997.679104
Filename
679104
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