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Proceedings Paper

Writing trace identification using ultraviolet Fourier-transform imaging spectroscopy technique
Author(s): Hang Lyu; Ningfang Liao; Wenmin Wu; Yasheng Li; Bin Cao
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Paper Abstract

Conventional identification methods of writing traces commonly utilize imaging or spectroscopic techniques which work in visible to near infrared range or short-wave infrared range. Yet they cannot be applied in identifying the erased writing traces. In this study, we perform a research in identification of erased writing traces applying an ultraviolet Fouriertransform imaging spectrometer. Experiments of classifying the reflected ultraviolet spectra of erasable pens are made. The resulting hyperspectral images demonstrate that the erased writing traces on printing paper can be clearly identified by this ultraviolet imaging spectrometer.

Paper Details

Date Published: 5 August 2015
PDF: 7 pages
Proc. SPIE 9618, 2015 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 961804 (5 August 2015); doi: 10.1117/12.2193286
Show Author Affiliations
Hang Lyu, Beijing Institute of Technology (China)
Ningfang Liao, Beijing Institute of Technology (China)
Wenmin Wu, Beijing Institute of Technology (China)
Yasheng Li, Beijing Institute of Technology (China)
Bin Cao, Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 9618:
2015 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments
Yongtian Wang; Xiaodi Tan; Kimio Tatsuno, Editor(s)

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