• Chinese Optics Letters
  • Vol. 9, Issue 1, 011003 (2011)
Kun Tan and Peijun Du
Author Affiliations
  • Key Laboratory for Land Environment and Disaster Monitoring of State Bureau of Surveying and Mapping of China, China University of Mining and Technology, Xuzhou 221116, China
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    DOI: 10.3788/COL201109.011003 Cite this Article Set citation alerts
    Kun Tan, Peijun Du. Combined multi-kernel support vector machine and wavelet analysis for hyperspectral remote sensing image classif ication[J]. Chinese Optics Letters, 2011, 9(1): 011003 Copy Citation Text show less

    Abstract

    Many remote sensing image classifiers are limited in their ability to combine spectral features with spatial features. Multi-kernel classifiers, however, are capable of integrating spectral features with spatial or structural features using multiple kernels and summing them for final outputs. Using a support vector machine (SVM) as classifier, different multi-kernel classifiers are constructed and tested using 64-band Operational Modular Imaging Spectrometer II hyperspectral image of Changping Area, Beijing City. Results show that by integrating spectral and wavelet texture information, multi-kernel SVM classifiers can obtain more accurate classification results than sole-kernel SVM classifiers and cross-information SVM kernel classifiers. Moreover, when the multi-kernel SVM classifier is used, the combination of the first four principal components from principal component analysis and wavelet texture provides the highest accuracy (97.06%). Multi-kernel SVM is therefore an effective approach to improve the accuracy of hyperspectral image classification and to expand possibilities for remote sensing image interpretation and application.
    Kun Tan, Peijun Du. Combined multi-kernel support vector machine and wavelet analysis for hyperspectral remote sensing image classif ication[J]. Chinese Optics Letters, 2011, 9(1): 011003
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