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Volume 34 Issue 2
Mar.  2012
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Song Xiang-Fa, Jiao Li-Cheng. Classification of Hyperspectral Remote Sensing Image Based on Sparse Representation and Spectral Information[J]. Journal of Electronics & Information Technology, 2012, 34(2): 268-272. doi: 10.3724/SP.J.1146.2011.00540
Citation: Song Xiang-Fa, Jiao Li-Cheng. Classification of Hyperspectral Remote Sensing Image Based on Sparse Representation and Spectral Information[J]. Journal of Electronics & Information Technology, 2012, 34(2): 268-272. doi: 10.3724/SP.J.1146.2011.00540

Classification of Hyperspectral Remote Sensing Image Based on Sparse Representation and Spectral Information

doi: 10.3724/SP.J.1146.2011.00540
  • Received Date: 2011-06-02
  • Rev Recd Date: 2011-10-31
  • Publish Date: 2012-02-19
  • This paper presents a novel classification algorithm of hyperspectral remote sensing image based on sparse representation and spectral information. First, a learning dictionary is obtained based on hyperspectral remote sensing image data set, and then the sparse coefficient of each pixel is calculated according to the learning dictionary. As a result, sparse representation feature is obtained. Finally, random forests are respectively constructed based on sparse representation feature and spectral information, and the classification result is decided by voting strategy. Experiments on AVIRIS hyperspectral remote sensing image justify the effectiveness of the algorithm. The experimental results indicate that the proposed method has better performance than methods based on spectral and sparse representation respectively, and has a higher overall accuracy and Kappa coefficient.
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