NDLI: Speckle Suppression for SAR Images Based on Adaptive Shrinkage in Contourlet Domain

Content Provider	IEEE Xplore Digital Library
Author	Wei Ni Baolong Guo Yunyi Yan Liu Yang
Copyright Year	2006
Description	Author affiliation: Sch. of Electromech. Eng., Xidian Univ., Xi 'an (Wei Ni; Baolong Guo; Yunyi Yan; Liu Yang)
Abstract	Synthetic aperture radar (SAR) image is usually contaminated by speckle noise due to random interference of electromagnetic waves. To effectively solve this problem, a novel speckle suppression algorithm for SAR image was proposed. The algorithm combines the multiscale geometric analysis tool: contourlet transform and an improved adaptive shrinkage denoising algorithm. The Monte-Carlo simulation is incorporated to estimate the statistical properties of contourlet coefficients. To improve the visual quality of despeckling, the cycle-spinning technique is also utilized. Experimental results show that compared with conventional wavelet despeckling algorithm, the proposed algorithm can achieve better speckle suppression results, and the significant information of original image like textures and contour details is well maintained
Starting Page	10017
Ending Page	10021
File Size	481525
Page Count	5
File Format	PDF
ISBN	1424403324
DOI	10.1109/WCICA.2006.1713958
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-06-21
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Speckle Digital filters Electromagnetic interference Noise reduction Image edge detection Signal resolution Synthetic aperture radar Image resolution Image processing Image segmentation Contourlet transform Speckle suppression Thresholding
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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