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A Composite Semisupervised SVM for Classification of Hyperspectral Images

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3 Author(s)
Marconcini, M. ; Dept. of Inf. Eng. & Comput. Sci., Univ. of Trento, Trento ; Camps-Valls, G. ; Bruzzone, L.

This letter presents a novel composite semisupervised support vector machine (SVM) for the spectral-spatial classification of hyperspectral images. In particular, the proposed technique exploits the following: 1) unlabeled data for increasing the reliability of the training phase when few training samples are available and 2) composite kernel functions for simultaneously taking into account spectral and spatial information included in the considered image. Experiments carried out on a hyperspectral image pointed out the effectiveness of the presented technique, which resulted in a significant increase of the classification accuracy with respect to both supervised SVMs and progressive semisupervised SVMs with single kernels, as well as supervised SVMs with composite kernels.

Published in:

Geoscience and Remote Sensing Letters, IEEE  (Volume:6 ,  Issue: 2 )