Da-cheng LI, An-jing WANG, Yang-yu LI, Fang-xiao CUI, Jun WU, Zhi-cheng CAO, Yun-yun WANG, Yan-li QIAO. Application of NIR Spectroscopy in Explosive Powder Surface Contamination Remote Detection[J]. Spectroscopy and Spectral Analysis, 2021, 41(2): 441
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 2, 441 (2021)
Fig. 1. Explosive powder surface contamination remote detection by NIR reflection
Fig. 2. Spectral feature aliasing of NQ and chemical fiber cloth base
Fig. 3. Diagram of explosive powder surface contamination remote detection based on NIR reflectance spectroscopy
Fig. 4. Reflectance spectra of samples
Fig. 5. Factor scores of model
Fig. 6. Correction score image and recognition result of CL-20
(a): Correction score of CL-20; (b): Recognition result after threshold discrimination overlayed on Infrared image
(a): Correction score of CL-20; (b): Recognition result after threshold discrimination overlayed on Infrared image
Fig. 7. Removing glares and shadows
(a): Glares and shadows in the original image; (b): Scores image after glares and shadows removed
(a): Glares and shadows in the original image; (b): Scores image after glares and shadows removed
Fig. 8. Comparison of spectra between RDX and the noise
(a): Reflectivity spectra; (b): Pretreated spectra
(a): Reflectivity spectra; (b): Pretreated spectra
Fig. 9. Classification result of multi-explosive powder surface contamination
(a): AP; (b): CL-20; (c): NQ; (d): RDX; (e): TATB; (f): Fireworkers and firecrackers
(a): AP; (b): CL-20; (c): NQ; (d): RDX; (e): TATB; (f): Fireworkers and firecrackers
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Table 1. Samples prediction RMSE
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