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Journal of Applied Remote Sensing

Semisupervised classification for hyperspectral image based on spatial-spectral clustering
Author(s): Liguo Wang; Yueshuang Yang; Danfeng Liu
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Paper Abstract

High-dimensional features and limited labeled training samples often lead to dimensionality disaster for hyperspectral image classification. Semisupervised learning has shown great significance in hyperspectral image processing. A semisupervised classification algorithm based on spatial-spectral clustering (SC-S2C) was proposed. In the proposed framework, spatial information extracted by Gabor filter was first stacked with spectral information. After that, an active learning (AL) algorithm was used to select the most informative unlabeled samples. Then a probability model based support vector machine combined with the SC-S2C technique was used to predict the labels of the selected unlabeled data. The proposed algorithm was experimentally validated on real hyperspectral datasets, indicating that the proposed framework can utilize the unlabeled data effectively and achieve high accuracy compared with state-of-the-art algorithms when small labeled data are available.

Paper Details

Date Published: 18 June 2015
PDF: 17 pages
J. Appl. Rem. Sens. 9(1) 096037 doi: 10.1117/1.JRS.9.096037
Published in: Journal of Applied Remote Sensing Volume 9, Issue 1
Show Author Affiliations
Liguo Wang, Harbin Engineering Univ. (China)
Yueshuang Yang, Harbin Engineering Univ. (China)
Danfeng Liu, Harbin Engineering Univ. (China)

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