NDLI: False alarm mitigation techniques for SAR CCD

Content Provider	IEEE Xplore Digital Library
Author	Newey, M. Barber, J. Benitz, G. Kogon, S.
Copyright Year	2013
Description	Author affiliation: MIT Lincoln Lab., Lexington, MA, USA (Newey, M.; Barber, J.; Benitz, G.; Kogon, S.)
Abstract	Coherent Change Detection (CCD) is a powerful technique for detecting fine scene changes between two Synthetic Aperture Radar (SAR) images taken at different times. SAR CCD imagery can detect ground disturbances that are invisible in optical or traditional SAR imagery, such as footprints or vehicle tracks [1]. One particular problem with the extreme sensitivity of CCD is the presence of false alarms (clutter) introduced by phenomena such as low SNR (esp. radar shadows) and vegetation [2]. We present two methods to improve the sensitivity of the detector while reducing the amount of false-alarms. The first uses a generalized likelihood ratio test for change detection which incorporates noise explicitly in its models. The second combines two CCD images, generated from three SAR passes of the same area, to cancel out false alarm regions and show only changes from man-made activities of interest, such as vehicle tracks. We show results from each algorithm on real data, and find that the algorithms are effective at reducing the amount of false alarms while increasing the sensitivity of our detector.
Starting Page	1
Ending Page	6
File Size	521969
Page Count	6
File Format	PDF
ISBN	9781467357920
ISSN	10975659
e-ISBN	9781467357944
DOI	10.1109/RADAR.2013.6586144
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-04-29
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Charge coupled devices Synthetic aperture radar Coherence Noise Radar tracking Clutter Vehicles radar interferometry synthetic aperture radar coherent change detection likelihood ratio test
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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