Change detection in polarimetric synthetic aperture radar data

Allan Aasbjerg Nielsen, Henning Skriver, Knut Conradsen, Morton John Canty

AbstractBased on an omnibus likelihood ratio test statistic for the equality of several variance-covariance matrices following the complex Wishart distribution and a factorization of this test statistic with associated p-values, change analysis in a time sequence of multilook polarimetric SAR data in the covariance matrix representation is carried out. The omnibus test statistic and its factorization detect if and when change occurs. Also, a measure of change direction is calculated. Using spaceborne dual polarization Sentinel-1 and full polarization Radarsat-2 data this contribution focuses on change detection based on the p-values, on visualization of change at pixel as well as segment level, and on computer software for local as well as cloud processing.
TypeConference paper [Abstract]
ConferenceNordic Remote Sensing Conference (NoRSC)
Year2019    Month September
AddressAIAS, Aarhus, Denmark
Electronic version(s)[pdf]
Publication link
BibTeX data [bibtex]
IMM Group(s)Image Analysis & Computer Graphics