A test statistic for the equality of several variance-covariance matrices following the complex Wishart distribution with an associated probability of finding a smaller value of the test statistic is introduced. Unlike tests based on pairwise comparisons between all temporally consecutive acquisitions the new omnibus test statistic and the probability measure successfully detects change in two short series of L- and C-band polarimetric EMISAR data.
|Title of host publication||Proceedings of the 2014 conference on Big Data from Space (BiDS'14)|
|Number of pages||4|
|Publisher||European Space Agency|
|Publication status||Published - 2014|
|Event||European Space Agency-ESRIN - Frascati, Italy|
Duration: 12 Nov 2014 → 14 Nov 2014
|Conference||European Space Agency-ESRIN|
|Period||12/11/2014 → 14/11/2014|
Conradsen, K., Nielsen, A. A., & Skriver, H. (2014). Change detection in a time series of polarimetric SAR data. In Proceedings of the 2014 conference on Big Data from Space (BiDS'14) (pp. 136-139). European Space Agency.