Singularity detection in images using dual local autocovariance

  • Wojciech Czaja
  • , Mladen Victor Wickerhauser

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Differences in the eigenvalues of an autocovariance matrix indicate directions at which the local Fourier power spectrum of a function is slowly decreasing. This provides a technique to discriminate edge-like singularities from other features in images.

Original languageEnglish
Pages (from-to)77-88
Number of pages12
JournalApplied and Computational Harmonic Analysis
Volume13
Issue number1
DOIs
StatePublished - Jul 2002

Keywords

  • Edge detection
  • Local Fourier power spectrum
  • Moments
  • Morrey-Campanato spaces
  • Nondifferentiable regularity

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