Classification of hyperspectral images with support vector machines: multiclass strategies

Lorenzo Bruzzone; Farid Melgani

doi:10.1117/12.514275

5 February 2004 Classification of hyperspectral images with support vector machines: multiclass strategies

Lorenzo Bruzzone, Farid Melgani

Proceedings Volume 5238, Image and Signal Processing for Remote Sensing IX; (2004) https://doi.org/10.1117/12.514275
Event: Remote Sensing, 2003, Barcelona, Spain

Abstract

This paper addresses the problem of the classification of hyperspectral remote-sensing images by means of Support Vector Machines (SVMs). In a first step, we propose a theoretical and experimental analysis that aims at assessing the properties of SVM classifiers in hyperdimensional feature spaces which are compared with those of other nonparametric classifiers. In a second step, we face the multiclass problem involved by SVM classifiers when applied to hyperspectral data. In particular, four different multiclass strategies are analyzed and compared: the one-against-all, the one-against-one and two hierarchical tree-based strategies. The experimental analysis has been carried out by using hyperspectral images acquired by the AVIRIS sensor on the Indian Pine area. Different performance indicators have been used to support our experimental studies, i.e., the classification accuracy, the computational time, the stability to parameter setting, and the complexity of the multiclass architecture adopted. The obtained results confirm the effectiveness of SVMs in hyperspectral data classification with respect to conventional classifiers.

Citation Download Citation

Lorenzo Bruzzone and Farid Melgani "Classification of hyperspectral images with support vector machines: multiclass strategies", Proc. SPIE 5238, Image and Signal Processing for Remote Sensing IX, (5 February 2004); https://doi.org/10.1117/12.514275

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