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Indexed by:Journal Papers

Date of Publication:2016-10-01

Journal:ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING

Included Journals:SCIE、EI、Scopus

Volume:120

Page Number:99-107

ISSN No.:0924-2716

Key Words:Hyperspectral image; Semisupervised classification; Deep learning

Abstract:Semisupervised learning is widely used in hyperspectral image classification to deal with the limited training samples, however, some more information of hyperspectral image should be further explored. In this paper, a novel semisupervised classification based on multi-decision labeling and deep feature learning is presented to exploit and utilize as much information as possible to realize the classification task. First, the proposed method takes two decisions to pre-label each unlabeled sample: local decision based on weighted neighborhood information is made by the surrounding samples, and global decision based on deep learning is performed by the most similar training samples. Then, some unlabeled ones with high confidence are selected to extent the training set. Finally, self decision, which depends on the self features exploited by deep learning, is employed on the updated training set to extract spectral-spatial features and produce classification map. Experimental results with real data indicate that it is an effective and promising semisupervised classification method for hyperspectral image. (C) 2016 International Society for Photogrammetry and Remote Sensing, Inc. (ISPRS). Published by Elsevier B.V. All rights reserved.