Robust change analysis of SAR data through information-theoretic multitemporal features (Invited Paper) (Contributo in atti di convegno)

Type
Label
  • Robust change analysis of SAR data through information-theoretic multitemporal features (Invited Paper) (Contributo in atti di convegno) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1109/IGARSS.2007.4423692 (literal)
Alternative label
  • B. Aiazzi, L. Alparone, S. Baronti, A. Garzelli, F. Nencini (2007)
    Robust change analysis of SAR data through information-theoretic multitemporal features (Invited Paper)
    in IEEE IGARSS 2007, IEEE International Geoscience and Remote Sensing Symposium, Barcellona, Spagna, 23-27 Luglio 2007
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • B. Aiazzi, L. Alparone, S. Baronti, A. Garzelli, F. Nencini (literal)
Pagina inizio
  • 3883 (literal)
Pagina fine
  • 3886 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
  • Invited paper. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4423692 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#titoloVolume
  • Proceedings of IEEE IGARSS 2007: Sensing and understanding our planet (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • pp. 3883-3886 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 4 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto
  • Lavoro che propone un metodo robusto di rilevazione di cambiamenti in immagini SAR multitemporali, per mezzo di descrittori statistici avanzati basati sulla teoria dell'informazione. (literal)
Note
  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • IFAC-CNR F. Nencini: Dipartimento di Ingegneria Informatica, Università di Siena, Via Roma 56, 53100 Siena. (literal)
Titolo
  • Robust change analysis of SAR data through information-theoretic multitemporal features (Invited Paper) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#isbn
  • 978-1-4244-1211-2 (literal)
Abstract
  • Multi-temporal analysis of Synthetic Aperture Radar (SAR) images has gained an ever increasing attention due to the availability of several satellite platforms with different revisit times and to the intrinsic capability of the SAR system of producing all-weather observations. As a drawback, automated analysis in general and change detection in particular are made difficult by the inherent noisiness of SAR imagery. Even if a pre-processing step aimed at speckle reduction is adopted, most of algorithms borrowed from computer vision cannot be profitably used. In this work, a novel pixel feature suitable for change analysis is derived from information-theoretic concepts. It does not require preliminary de-speckling and capable of providing accurate change maps from a couple of SAR images. The rationale is that the negative of logarithm of the probability of an amplitude level in one image conditional to the level of the same pixel in the other image conveys an information on the amount of change occurred between the two passes. Experimental results carried out on two couples of multi-temporal SAR images demonstrate that the proposed IT feature outperform the Log-Ratio in terms of capability of discriminating changes. (literal)
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