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Chin. Phys. B, 2019, Vol. 28(3): 034206    DOI: 10.1088/1674-1056/28/3/034206
ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS Prev   Next  

Active hyperspectral imaging with a supercontinuum laser source in the dark

Zhongyuan Guo(郭中源)1, Yu Liu(刘煜)2, Xin Zheng(郑鑫)1, Ke Yin(殷科)1,3
State Key Laboratory of High Performance Computing, College of Computer, National University of Defense Technology, Changsha 401173, China;
2 College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China;
3 National Innovation Institute of Defense Technology, Academy of Military Sciences of the People's Liberation Army of China, Beijing 100071, China
Abstract  

An active hyperspectral imaging (HSI) system was built with a supercontinuum (SC) laser illuminator and a visible/near-infrared hyperspectral camera, which was used for object spectrum detection in the dark. It was demonstrated that the Gaussian-like distribution of the SC illuminator can still be used for accurate reflectance spectrum measurement once the illuminator was characterized in advance. The validity of active HSI results was demonstrated by comparison with passive results. Then, the active HSI system was used to acquire reflectance spectra of different objects in just one push-broom measurement successfully. With algorithms of principal component analysis clustering and unsupervised K-means spectral classification, this active HSI system with high spectral and spatial resolutions was demonstrated to be efficient and applicable for specific spectrum detections.

Keywords:  laser spectroscopy      active hyperspectral imaging      supercontinuum laser  
Received:  19 September 2018      Revised:  02 January 2019      Accepted manuscript online: 
PACS:  42.62.Fi (Laser spectroscopy)  
  02.70.Hm (Spectral methods)  
  42.81.Wg (Other fiber-optical devices)  
Fund: 

Project supported by the Opening Foundation of State Key Laboratory of High Performance Computing, China (Grant No. 201601-02), the Open Research Fund of Hunan Provincial Key Laboratory of High Energy Technology, China (Grant No. GNJGJS03), the Opening Foundation of State Key Laboratory of Laser Interaction with Matter, China (Grant No. SKLLIM1702), and the China Postdoctoral Innovation Science Foundation (Grant No. BX20180373).

Corresponding Authors:  Ke Yin     E-mail:  cqyinke@126.com

Cite this article: 

Zhongyuan Guo(郭中源), Yu Liu(刘煜), Xin Zheng(郑鑫), Ke Yin(殷科) Active hyperspectral imaging with a supercontinuum laser source in the dark 2019 Chin. Phys. B 28 034206

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