Title :
Comparison of Polarimetric Change Detection Methods on ALOS PALSAR Images over Finland
Author :
Molinier, Matthieu ; Lönnqvist, Anne ; Rauste, Yrjö
Author_Institution :
Digital Inf. Syst., VTT Tech. Res. Centre of Finland, Espoo
Abstract :
Six polarimetric change detection indices were tested on L band ALOS PALSAR data over Kuortane, Finland. Tests included quantitative evaluation of change indices compared to reference change maps, and qualitative evaluation by visual inspection. Results suggest an additional accuracy using fully polarimetric data in change detection. Contrast Ratio and the Wishart test gave the best results among the tested indices.
Keywords :
geophysical signal processing; image processing; radar polarimetry; remote sensing by radar; synthetic aperture radar; Finland; Kuortane; L band ALOS PALSAR; Wishart test; contrast ratio; polarimetric change detection; reference change maps; visual inspection; Backscatter; Covariance matrix; Ice; Information systems; Inspection; Layout; Minerals; Rayleigh scattering; Soil; Testing; ALOS PALSAR; Change detection; SAR; full-polarisation;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2008. IGARSS 2008. IEEE International
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-2807-6
Electronic_ISBN :
978-1-4244-2808-3
DOI :
10.1109/IGARSS.2008.4780107
