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Improved curvelet thresholding algorithm for astronomical image denoising

  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In image denoising, in order to overcome the shortcoming that the uniform wavelet threshold in iterative thresholding algorithm can't separate the image from noise effectively at each iteration leads to the quality of the reconstructed image is poor, an improved curvelet threshold is proposed to replace it. And then iterative curvelet thresholding algorithm based on the improved threshold is proposed. In this paper, we apply the proposed algorithm for high resolution astronomical image denoising. The experimental result shows that the proposed algorithm improves the visual quality, effectively protects astronomical image details. When compression ratio is lower, the proposed algorithm still can obtain a higher peak signal to noise ratio (PSNR).

Original languageEnglish
Title of host publicationProceedings of 2016 IEEE Advanced Information Management, Communicates, Electronic and Automation Control Conference, IMCEC 2016
EditorsBing Xu
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages539-542
Number of pages4
ISBN (Electronic)9781467396127
DOIs
StatePublished - 28 Feb 2017
Event2016 IEEE Advanced Information Management, Communicates, Electronic and Automation Control Conference, IMCEC 2016 - Xi'an, China
Duration: 3 Oct 20165 Oct 2016

Publication series

NameProceedings of 2016 IEEE Advanced Information Management, Communicates, Electronic and Automation Control Conference, IMCEC 2016

Conference

Conference2016 IEEE Advanced Information Management, Communicates, Electronic and Automation Control Conference, IMCEC 2016
Country/TerritoryChina
CityXi'an
Period3/10/165/10/16

Keywords

  • Astronomical image
  • Curvelet threshold
  • Denoising
  • Wavelet threshold

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