Title :
The discriminatory capability of polarimetric SAR data for land use classification
Author :
Sant´Anna, Sidnei João Siqueira ; Correia, Antonio Henrique ; Freitas, Corina Da Costa ; Frery, Alejandro César
Author_Institution :
INPE-DPI, Sao Paulo, Brazil
Abstract :
A SIR-C data is used to assess the discriminatory capability of full polarimetric data for several classes of land-use. It is analysed the contribution of each type of data (phase difference, intensity ratio, intensity pair and intensity-phase difference pair), using the iterated conditional modes (ICM) classifier. It is shown that each class was better classified using a different type of polarimetric data. The result of the classification (measured by the confusion matrix and the Kappa coefficient of agreement) was considered very good, allowing the discrimination of nine land use classes, which includes different cultivation stages of some crops
Keywords :
agriculture; geophysical signal processing; geophysical techniques; image classification; radar polarimetry; remote sensing by radar; synthetic aperture radar; terrain mapping; vegetation mapping; Kappa coefficient; SAR; agriculture; classifier; confusion matrix; crops; cultivation stage; discriminatory capability; geophysical measurement technique; image classification; intensity pair; intensity ratio; intensity-phase difference pair; iterated conditional mode; land surface; land use; phase difference; polarimetric SAR; radar polarimetry; radar remote sensing; synthetic aperture radar; terrain mapping; vegetation mapping; Crops; Extraterrestrial measurements; Focusing; Gaussian distribution; Iterative algorithms; Maximum likelihood estimation; Radar imaging; Radar polarimetry; Radar remote sensing; Remote sensing;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1999. IGARSS '99 Proceedings. IEEE 1999 International
Conference_Location :
Hamburg
Print_ISBN :
0-7803-5207-6
DOI :
10.1109/IGARSS.1999.775012