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dc.contributor.authorAkbari, Vahid
dc.contributor.authorAnfinsen, Stian Normann
dc.contributor.authorDoulgeris, Anthony Paul
dc.contributor.authorEltoft, Torbjørn
dc.date.accessioned2018-10-09T07:37:47Z
dc.date.available2018-10-09T07:37:47Z
dc.date.issued2015-11-12
dc.description.abstractIn this paper, we present an unsupervised change detection method for polarimetric synthetic aperture radar (PolSAR) images based on the relaxed Wishart distribution. Most polarimetric change detectors assume the Gaussian-based complex Wishart model for multilook covariance matrices, which is only satisfied for homogeneous areas with fully developed speckle and no texture. Liu et al. recently proposed a new change detection algorithm under the multilook product model (MPM) to describe the heterogeneous clutters. The improvement has come at the expenseofhighercomputationalcostsincethesimilaritymeasure is based on more advanced models accounting for texture, and they contain some mathematical special functions that is difficult to evaluate such similarity measures. In this paper, we will demonstrate the ability of the relaxed Wishart distribution for textured change detection analysis. Change results on simulated and real data demonstrate the effectiveness of the algorithm.en_US
dc.descriptionEmbargo of 24 months from date of publishing on accepted manuscript version. <br>Link to publisher's version:<a href=10.1109/IGARSS.2015.7326653>10.1109/IGARSS.2015.7326653</a>en_US
dc.identifier.citationAkbari V, Anfinsen SN, Doulgeris ap, Eltoft T.(2015) A change detector for polarimetric SAR data based on the relaxed Wishart distribution. In: Proceedings of IEEE International Geoscience and Remote Sensing Symposium, p. 3806-3809. DOI:10.1109/IGARSS.2015.7326653en_US
dc.identifier.cristinIDFRIDAID 1506787
dc.identifier.doi10.1109/IGARSS.2015.7326653
dc.identifier.issn2153-6996
dc.identifier.issn2153-7003
dc.identifier.urihttps://hdl.handle.net/10037/13910
dc.language.isoengen_US
dc.publisherInstitute of Electrical and Electrotechnical Engineers (IEEE)en_US
dc.relation.journalIEEE International Geoscience and Remote Sensing Symposium proceedings
dc.rights.accessRightsembargoedAccessen_US
dc.subjectVDP::Technology: 500::Electrotechnical disciplines: 540en_US
dc.subjectVDP::Mathematics and natural science: 400::Physics: 430::Electronics: 435en_US
dc.titleA change detector for polarimetric SAR data based on the relaxed Wishart distributionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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