Speckle-noise reduction via "rotated elliptical-thresholding" in an homomorphic complex-wavelet domain

Edmund Hui On Ng, Kainam Thomas Wong, Jerry Chi Ling Lam

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

5 Citations (Scopus)

Abstract

Speckle noise has been found to rotate an image's homomorphic elliptically distributed complex-wavelet coefficients. This work proposes a counter-rotation of these complex-wavelet co-efficients as a means of mitigating speckle noise using principle component analysis. Simulations suggest that the proposed de-noising technique offers superior visual quality, though its signal-to-mean-square-error ratio (S/MSE) is numerically comparable to the improvement obtained in customary median filtering and adaptive Wiener filtering.
Original languageEnglish
Title of host publicationIEEE International Conference on Image Processing 2005, ICIP 2005
Pages585-588
Number of pages4
Volume3
DOIs
Publication statusPublished - 1 Dec 2005
Externally publishedYes
EventIEEE International Conference on Image Processing 2005, ICIP 2005 - Genova, Italy
Duration: 11 Sep 200514 Sep 2005

Conference

ConferenceIEEE International Conference on Image Processing 2005, ICIP 2005
Country/TerritoryItaly
CityGenova
Period11/09/0514/09/05

ASJC Scopus subject areas

  • Engineering(all)

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