15 March 1994 Discrete inverses for nonorthogonal wavelet transforms
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Abstract
Discrete nonorthogonal wavelet transforms play an important role in signal processing by offering finer resolution in time and scale than their orthogonal counterparts. The standard inversion procedure for such transforms is a finite expansion in terms of the analyzing wavelet. While this approximation works quite well for many signals, it fails to achieve good accuracy or requires an excessive number of scales for others. This paper proposes several algorithms which provide more adequate inversion and compares them in the case of Morlet wavelets. In the process, both practical and theoretical issues for the inversion of nonorthogonal wavelet transforms are discussed.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Mark J. Shensa, "Discrete inverses for nonorthogonal wavelet transforms", Proc. SPIE 2242, Wavelet Applications, (15 March 1994); doi: 10.1117/12.170035; https://doi.org/10.1117/12.170035
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KEYWORDS
Wavelets

Discrete wavelet transforms

Transform theory

Wavelet transforms

Electronic filtering

Francium

Astatine

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