Parallel collaborative representation for hyperspectral image classification on GPUs

Lucheng Wu, Xiaoming Xie, Wei Li, Qian Du

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

3 Citations (Scopus)

Abstract

Collaborative representation-based classification with distance-weighted Tikhonov regularization (CRT) has offered high accuracy and efficiency. Due to its per-pixel classification nature without a training step, this paper develops a parallel implementation by using compute unified device architecture (CUDA) on graphics processing units (GPUs). To further improve classification accuracy, local binary pattern (LBP) is used for spatial feature extraction, and an unsupervised band selections approach is applied for dimensionality reduction and an optimized collaborative model combining spatial-spectral features is employed. The proposed parallel implementation is able to increase computational efficiency while not degrading classification accuracy when compared with the serial implementations on central processing units (CPUs).

Original languageEnglish
Title of host publication2016 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2016 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2438-2441
Number of pages4
ISBN (Electronic)9781509033324
DOIs
Publication statusPublished - 1 Nov 2016
Externally publishedYes
Event36th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2016 - Beijing, China
Duration: 10 Jul 201615 Jul 2016

Publication series

NameInternational Geoscience and Remote Sensing Symposium (IGARSS)
Volume2016-November

Conference

Conference36th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2016
Country/TerritoryChina
CityBeijing
Period10/07/1615/07/16

Keywords

  • Graphic processing unit
  • Hyperspectral imagery classification
  • band selection
  • local binary pattern
  • parallel computing

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