Writing trace identification using ultraviolet Fourier-transform imaging spectroscopy technique

Hang Lyu, Ningfang Liao*, Wenmin Wu, Yasheng Li, Bin Cao

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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.

Original languageEnglish
Title of host publication2015 International Conference on Optical Instruments and Technology
Subtitle of host publicationOptical Systems and Modern Optoelectronic Instruments, OIT 2015
EditorsKimio Tatsuno, Xiaodi Tan, Yongtian Wang
PublisherSPIE
ISBN (Electronic)9781628417999
DOIs
Publication statusPublished - 2015
Event2015 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, OIT 2015 - Beijing, China
Duration: 17 May 201519 May 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9618
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference2015 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, OIT 2015
Country/TerritoryChina
CityBeijing
Period17/05/1519/05/15

Keywords

  • erasable
  • hyperspectral imaging
  • ultraviolet
  • writing trace identification

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