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Linear features’ detection in SAR images using Fuzzy Edge Detector

Dimou, A. and Uzunoglou, N. and Frangos, P. and Jäger, G. and Benz, U. (2000) Linear features’ detection in SAR images using Fuzzy Edge Detector. In: SBOT 2000 Proceedings. SBOT 2000, Samos/Greece, 16.-18.10.2000.

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Abstract

Synthetic Aperture Radar (SAR) images exploitation is of great importance in remote sensing and Earth observation techniques, as well as in military surveillance and reconnaissance missions. One of the most important image-processing techniques is image segmentation. Segmentation subdivides an image into its constituent parts or objects. Edge detection is often an important first stage in many types of image segmentation. It can be used to simplify complex imagery in preparation for subsequent feature identification. Detection of linear structures (road network, airfields e.t.c.) is of great interest in a potential automated recognition system. A new approach for edge detection in SAR images, which overcomes the necessity of choosing arbitrary thresholds is described in this paper. The Fuzzy Edge Detector (FED) not only discriminates between edge pixels and no-edge pixels, but assigns each image point a degree of being an edge point. This intermediate fuzzy output enables a very flexible post-processing and thus an efficient edge detection processing chain (e.g. non-maximum suppression and edge linking). Additionally, the edge direction information resulting from FED can be used for linear features’ identification and extraction. The performance of the proposed edge detector on airborne and spaceborne SAR images that include linear features is presented.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2000,
Title:Linear features’ detection in SAR images using Fuzzy Edge Detector
Authors:
AuthorsInstitution or Email of Authors
Dimou, A.UNSPECIFIED
Uzunoglou, N.UNSPECIFIED
Frangos, P.UNSPECIFIED
Jäger, G.UNSPECIFIED
Benz, U.UNSPECIFIED
Date:2000
Journal or Publication Title:SBOT 2000 Proceedings
Editors:
EditorsEmail
NATO, UNSPECIFIED
Status:Published
Keywords:Synthetic Aperture Radar (SAR), SAR image, image segmentation, edge detection, feature identification, automated recognition system, threshold, Fuzzy Edge Detector (FED), linear structures, road, airfield
Event Title:SBOT 2000, Samos/Greece, 16.-18.10.2000
Organizer:NATO
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):UNSPECIFIED
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute
Deposited By: Jens Fischer
Deposited On:16 Sep 2005
Last Modified:06 Jan 2010 19:33

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