elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Contact | Deutsch
Fontsize: [-] Text [+]

Quantitative assessment of the efficiency of supervised classification using coherent and incoherent polarimetric SAR observables

Pipia L., and Alberga V., and Chandra M., and Migliaccio M., and Ben Khadhra K., (2002) Quantitative assessment of the efficiency of supervised classification using coherent and incoherent polarimetric SAR observables. In: Proceedings of EUSAR 2002, pp. 729-732. VDE. EUSAR 2002; Cologne, Germany, 4 - 6 June 2002. ISBN 3-8007-2697-1.

Full text not available from this repository.

Abstract

Supervised classification of Earth surface, using polarimetric SAR data, was used as a test case for comparing the classification efficiency achieved on one hand by using coherent polarimetric observables and on the other incoherent ones. The coherent observables were derived from the diagonalization of the pixel [S] matrix and the incoherent observables were obtained from the coherency matrix using Cloude and Pottier's entropy/alpha. Investigations revealed that both categories of observables, i.e., coherent and incoherent, yield comparable efficiencies. A more interesting aspect of the results relates the averaging over pixels. It was found that classification efficiency improved generally when the number of pixels in the averaging window was increased. The improvement in classification performance was observed not only in the incoherent case but, surprisingly, also in the coherent case. Such observations seem to imply that neighboring pixels measured with SAR are not entirely uncorrelated.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2002,
Title:Quantitative assessment of the efficiency of supervised classification using coherent and incoherent polarimetric SAR observables
Authors:
AuthorsInstitution or Email of Authors
Pipia L., UNSPECIFIED
Alberga V., UNSPECIFIED
Chandra M., UNSPECIFIED
Migliaccio M., UNSPECIFIED
Ben Khadhra K., UNSPECIFIED
Date:2002
Journal or Publication Title:Proceedings of EUSAR 2002
Page Range:pp. 729-732
Publisher:VDE
ISBN:3-8007-2697-1
Status:Published
Keywords:SAR Polarimetry, Image classification
Event Title:EUSAR 2002; Cologne, Germany, 4 - 6 June 2002
Organizer:DLR, Astrium, EADS
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: Vito Alberga
Deposited On:16 Sep 2005
Last Modified:06 Jan 2010 19:40

Repository Staff Only: item control page

Browse
Search
Help & Contact
Informationen
electronic library is running on EPrints 3.3.12
Copyright © 2008-2012 German Aerospace Center (DLR). All rights reserved.