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Proceedings Paper

Spectral recognition of target based on the hyperspectral image data
Author(s): Qili Hu; Honghui Jia; Xiaofeng Wang; Shengli Chang; Juncai Yang
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Paper Abstract

As it contains the spectral and image information of targets, the hyperspectral image measured by the airborne CASI imaging spectrometer can improve the accuracy of target identification effectively. Usually, the spectral matching methods are used in identification by extracting spectral information from hyperspectral image. Two matching algorithms, the spectral angle matching method and the binary encoding method, are investigated under the condition of different spectral resolutions. Firstly the atmospheric correction, the spectral curve smoothing and re-sampling are carried out in ENVI software. Then the different spectral resolutions are constructed by selecting spectral subsets from the hyperspectral image. The matching result indicates that the spectral resolution threshold of the spectral angle matching method is above the threshold of the binary encoding method. The result of this study has important guiding significance to the use of the matching algorithm and the selection of spectral resolution.

Paper Details

Date Published: 15 October 2012
PDF: 6 pages
Proc. SPIE 8417, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 841732 (15 October 2012); doi: 10.1117/12.977795
Show Author Affiliations
Qili Hu, National Univ. of Defense Technology (China)
Honghui Jia, National Univ. of Defense Technology (China)
Xiaofeng Wang, National Univ. of Defense Technology (China)
Shengli Chang, National Univ. of Defense Technology (China)
Juncai Yang, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 8417:
6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment
Yudong Zhang; Libin Xiang; Sandy To, Editor(s)

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