Discriminative Gabor feature selection for hyperspectral image classification

Linlin Shen, Zexuan Zhu, Sen Jia, Jiasong Zhu, Yiwen Sun

Research output: Journal PublicationArticlepeer-review

66 Citations (Scopus)

Abstract

Three-dimensional Gabor wavelets have recently been successfully applied for hyperspectral image classification due to their ability to extract joint spatial and spectrum information. However, the dimension of the extracted Gabor feature is incredibly huge. In this letter, we propose a symmetrical- uncertainty-based and Markov-blanket-based approach to select informative and nonredundant Gabor features for hyperspectral image classification. The extracted Gabor features with large dimension are first ranked by their information contained for classification and then added one by one after investigating the redundancy with already selected features. The proposed approach was fully tested on the widely used Indian Pine site data. The results show that the selected features are much more efficient and can achieve similar performance with previous approach using only hundreds of features.

Original languageEnglish
Article number6194995
Pages (from-to)29-33
Number of pages5
JournalIEEE Geoscience and Remote Sensing Letters
Volume10
Issue number1
DOIs
Publication statusPublished - 2013
Externally publishedYes

Keywords

  • Feature selection
  • Gabor wavelet
  • hyperspectral imagery classification

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Electrical and Electronic Engineering

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