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Cited by 3,863

The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.

Singularity detection and processing with wavelets

Mallat, S., Hwang, W.L.·1992·IEEE Transactions on Information Theory

Abstract

The mathematical characterization of singularities with Lipschitz exponents is reviewed. Theorems that estimate local Lipschitz exponents of functions from the evolution across scales of their wavelet transform are reviewed. It is then proven that the local maxima of the wavelet transform modulus detect the locations of irregular structures and provide numerical procedures to compute their Lipschitz exponents. The wavelet transform of singularities with fast oscillations has a particular behavior that is studied separately. The local frequency of such oscillations is measured from the wavelet transform modulus maxima. It has been shown numerically that one- and two-dimensional signals can be reconstructed, with a good approximation, from the local maxima of their wavelet transform modulus. As an application, an algorithm is developed that removes white noises from signals by analyzing the evolution of the wavelet transform maxima across scales. In two dimensions, the wavelet transform maxima indicate the location of edges in images.>

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Metadata

Authors
Mallat, S., & Hwang, W. L.
Venue
IEEE Transactions on Information Theory
Published
1992-03
Volume
38
Issue
2
Pages
617-643
ISSN
  • 0018-9448 (ISSN-L)
  • 1557-9654
OpenAlex
W2152328854
Cited by
3,863
References
3
FWCI
76.21
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Singularity detection and processing with wavelets. https://app.cochat.ai/papers/10.1109/18.119727
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Mallat, S., & Hwang, W. L. (1992). Singularity detection and processing with wavelets. IEEE Transactions on Information Theory. https://doi.org/10.1109/18.119727

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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