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
Link To Document :
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