Title :
The Identification of Illicit Drugs Using Terahertz Spectroscopy and Imaging
Author :
Shen Ting-Ling ; Lu Mei-Hong ; Jia Yan ; Li Ning ; Liang Lai-Shun ; Xu Xiao-Yu ; Zhang Yan ; Zhang Cun-Lin
Author_Institution :
Capital Normal Univ., Beijing
Abstract :
The detection and identification of illicit drugs can be realized by THz spectra and imaging assisted by proper data processing. The component spatial pattern of each sample was obtained and separated from the others by introducing the component spatial pattern analysis. Meanwhile, nine different illicit drugs were identified successfully from their THz spectra by BP neural networks.
Keywords :
backpropagation; drugs; neural nets; submillimetre wave imaging; submillimetre wave spectroscopy; BP neural network; component spatial pattern analysis; data processing; illicit drug identification; terahertz imaging; terahertz spectroscopy; Absorption; Chemicals; Data processing; Drugs; Inspection; Neural networks; Optical imaging; Pattern analysis; Spectroscopy; Submillimeter wave measurements;
Conference_Titel :
Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics, 2006. IRMMW-THz 2006. Joint 31st International Conference on
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0399-5
DOI :
10.1109/ICIMW.2006.368542
