Title :
Classification of polarimetric SAR images of suburban areas using joint annealed segmentation and "H/A/α" decomposition
Author :
Lombardo, P. ; Pellizzeri, T. Macri ; Tomasuolo, A.
Author_Institution :
INFOCOM Dept., Rome Univ., Italy
Abstract :
A joint segmentation-based classification technique is proposed for fully polarimetric SAR images of suburban areas. This is based on the joint use of the H/A/α_ decomposition and a multivariate annealed segmentation. This allows us to exploit the information available in the noisy estimate of the anisotropy parameter, retaining the highest possible spatial resolution. Specifically, the anisotropy is processed in conjunction with entropy and α_ angle, so that it is regularized by their more stable values. The application of the proposed technique to an AIRSAR image of suburban areas shows its practical effectiveness
Keywords :
airborne radar; image classification; image segmentation; radar imaging; radar polarimetry; remote sensing by radar; synthetic aperture radar; AIRSAR image; H/M/α decomposition; anisotropy parameter; classification; entropy; joint annealed segmentation; joint segmentation-based classification technique; multivariate annealed segmentation; noisy estimate; polarimetric SAR images; spatial resolution; suburban areas; Anisotropic magnetoresistance; Annealing; Eigenvalues and eigenfunctions; Entropy; Image segmentation; L-band; Matrix decomposition; Polarimetry; Remote sensing; Spatial resolution;
Conference_Titel :
Remote Sensing and Data Fusion over Urban Areas, IEEE/ISPRS Joint Workshop 2001
Conference_Location :
Rome
Print_ISBN :
0-7803-7059-7
DOI :
10.1109/DFUA.2001.985738