Investigation of material identification with terahertz pulsed imaging

Author

Wang, Yingxin ; Zhao, Ziran ; Chen, Zhiqiang ; Zhang, Li ; Kang, Kejun

Author_Institution

Dept. of Eng. Phys., Tsinghua Univ., Beijing

Volume

3

fYear

2008

fDate

21-24 April 2008

Firstpage

1405

Lastpage

1408

Abstract

Terahertz pulsed imaging provides a wealth of information about the terahertz response of the material under test. We investigate the identification and classification of explosives and common materials based on their terahertz absorption spectra obtained by this spectroscopic imaging technique. In the classification experiment, an accuracy of 96.6% is achieved by using Fisher´s linear discriminant analysis for dimensionality reduction of the original spectral data set and support vector machine classifier for classification.

Keywords

explosives; materials testing; submillimetre wave imaging; submillimetre wave spectra; Fisher´s linear discriminant analysis; dimensionality reduction; material identification; material under test; spectral data set; spectroscopic imaging technique; support vector machine; terahertz absorption spectra; terahertz pulsed imaging; Absorption; Biological materials; Biomedical materials; Explosives; Linear discriminant analysis; Materials testing; Optical imaging; Spectroscopy; Support vector machine classification; Support vector machines;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology, 2008. ICMMT 2008. International Conference on

Conference_Location

Nanjing

Print_ISBN

978-1-4244-1879-4

Electronic_ISBN

978-1-4244-1880-0

Type

conf

DOI

10.1109/ICMMT.2008.4540705

Filename

4540705