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research article

Supervised change detection in VHR images using contextual information and support vector machines

Volpi, Michele
•
Tuia, Devis  
•
Bovolo, Francesca
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2013
International Journal of Applied Earth Observation and Geoinformation

In this paper we study an effective solution to deal with supervised change detection in very high geometrical resolution (VHR) images. High within-class variance as well as low between-class variance that characterize this kind of imagery make the detection and classification of ground cover transitions a difficult task. In order to achieve high detection accuracy, we propose the inclusion of spatial and contextual information issued from local textural statistics and mathematical morphology. To perform change detection, two architectures, initially developed for medium resolution images, are adapted for VHR: Direct Multi-date Classification and Difference Image Analysis. To cope with the high intra-class variability, we adopted a nonlinear classifier: the Support Vector Machines (SVM). The proposed approaches are successfully evaluated on two series of pansharpened QuickBird images.

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Type
research article
DOI
10.1016/j.jag.2011.10.013
Web of Science ID

WOS:000310173800009

Author(s)
Volpi, Michele
Tuia, Devis  
Bovolo, Francesca
Kanevski, Mikhail
Bruzzone, Lorenzo
Date Issued

2013

Publisher

Elsevier

Published in
International Journal of Applied Earth Observation and Geoinformation
Volume

20

Start page

77

End page

85

Subjects

change detection

•

remote sensing

•

very high resolution

Editorial or Peer reviewed

REVIEWED

Written at

OTHER

EPFL units
LASIG  
Available on Infoscience
January 24, 2012
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/77094
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