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arXiv · 1412.2684

HyperSpectral classification with adaptively weighted L1-norm regularization and spatial postprocessing

Victor Stefan Aldea
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Abstract

Sparse regression methods have been proven effective in a wide range of signal processing problems such as image compression, speech coding, channel equalization, linear regression and classification. In this paper a new convex method of hyperspectral image classification is developed based on the sparse unmixing algorithm SUnSAL for which a pixel adaptive L1-norm regularization term is introduced. To further enhance class separability, the algorithm is kernelized using an RBF kernel and the final results are improved by a combination of spatial pre and post-processing operations. It is shown that the proposed method is competitive with state of the art algorithms such as SVM-CK, KSOMP-CK and KSSP-CK.

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Victor Stefan Aldea. 2014-12-08. HyperSpectral classification with adaptively weighted L1-norm regularization and spatial postprocessing. https://arxiv.org/abs/1412.2684

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