Decision fusion for hyperspectral image classification based on minimum-distance classifiers in thewavelet domain

Wei Li, Saurabh Prasad, Eric W. Tramel, James E. Fowler, Qian Du

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

14 Citations (Scopus)

Abstract

A decision-fusion approach is introduced for hyperspectral data classification based on minimum-distance classifiers in the wavelet domain. In the proposed approach, multi-scale features of each hyperspectral pixel are extracted by implementing a redundant discrete wavelet transformation on the spectral signature. Following this, a pair of minimumdistance classifiers - a local mean-based nonparametric classifirer and a nearest regularization subspace - are applied on wavelet coefficients at each scale. Classification results are finally merged in a multi-classifier decision-fusion system. Experimental results using real hyperspectral data demonstrate the benefits of the proposed approach - in addition to improved classification performance compared to a traditional single classifier, the resulting classifier framework is effective even for low signal-to-noise-ratio images.

Original languageEnglish
Title of host publication2014 IEEE China Summit and International Conference on Signal and Information Processing, IEEE ChinaSIP 2014 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages162-165
Number of pages4
ISBN (Electronic)9781479954032
DOIs
Publication statusPublished - 3 Sept 2014
Externally publishedYes
Event2nd IEEE China Summit and International Conference on Signal and Information Processing, IEEE ChinaSIP 2014 - Xi'an, China
Duration: 9 Jul 201413 Jul 2014

Publication series

Name2014 IEEE China Summit and International Conference on Signal and Information Processing, IEEE ChinaSIP 2014 - Proceedings

Conference

Conference2nd IEEE China Summit and International Conference on Signal and Information Processing, IEEE ChinaSIP 2014
Country/TerritoryChina
CityXi'an
Period9/07/1413/07/14

Keywords

  • decision fusion
  • hyperspectral data
  • nearest neighbors
  • pattern classification

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