HYPERSPECTRAL IMAGE CLASSIFICATION USING SPECTRAL AND SPATIAL INFORMATION BASED LINEAR DISCRIMINANT ANALYSIS

Cheng-Hsuan Li, Hui-Shan Chu, Bor-Chen Kuo, Chin-Teng Lin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

15 Scopus citations

Abstract

Feature extraction plays an essential role in Hyperspectral image classification. Linear discriminant analysis (LDA) is a commonly used feature extraction (FE) method to resolve the Hughes phenomenon for classification. The Hughes phenomenon (also called the curse of dimensionality) is often encountered in classification when the dimensionality of the space grows and the size of the training set is fixed, especially in the small sampling size problem. Recent studies show that the spatial information can greatly improve the classification performance. Hence, for hyperspectral image classification, it is not only necessary to use the available spectral information but also to exploit the spatial information. In this paper, spatial information is acquired by the concept of the Markov random field (MRF), and this spatial information is used to form the membership values of every pixel in the hyperspectral image. The experimental results on two hyperspectral images, the Washington DC Mall and the Indian Pine Site, show that the proposed method can yield a better classification performance than LDA in the small sampling size problem.
Original languageEnglish
Title of host publication2011 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
PublisherIEEE
Pages1716-1719
Number of pages4
ISBN (Print)978-1-4577-1005-6
DOIs
StatePublished - 2011

Publication series

NameIEEE International Symposium on Geoscience and Remote Sensing IGARSS
ISSN (Print)2153-6996

Keywords

  • feature extraction
  • linear discriminant analysis

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    Li, C-H., Chu, H-S., Kuo, B-C., & Lin, C-T. (2011). HYPERSPECTRAL IMAGE CLASSIFICATION USING SPECTRAL AND SPATIAL INFORMATION BASED LINEAR DISCRIMINANT ANALYSIS. In 2011 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) (pp. 1716-1719). (IEEE International Symposium on Geoscience and Remote Sensing IGARSS). IEEE. https://doi.org/10.1109/IGARSS.2011.6049566