Chinese Optics Letters, Volume. 9, Issue 1, 011003(2011)

Combined multi-kernel support vector machine and wavelet analysis for hyperspectral remote sensing image classif ication

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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    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.

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    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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    Paper Information

    Received: Oct. 25, 2010

    Accepted: Nov. 30, 2010

    Published Online: Jan. 7, 2011

    The Author Email:

    DOI:10.3788/COL201109.011003

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