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Trace explosive detection in fingerprints with Raman chemical imaging

Ashish Tripathi · Erik D. Emmons · Jason A. Guicheteau · Steven D. Christesen · Phillip G. Wilcox · Darren K. Emge +1 more

15 citations0/0 files storedProceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

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Forensic Fingerprint Detection Methods Cultural Heritage Materials Analysis Spectroscopy Techniques in Biomedical and Chemical Research

Abstract

Wide-field Raman chemical imaging (RCI) has been used to detect and identify the presence of trace explosives in contaminated fingerprints. A background subtraction routine was developed to minimize the Raman spectral features produced by surfaces on which the fingerprint was examined. The Raman image was analyzed with a spectral angle mapping routine to detect and identify the explosives. This study shows the potential capability to identify explosives non-destructively so that the fingerprint remains intact for further biometric analysis.

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2018Study of the adhesion of explosive residues to the finger and transfer to clothing and luggage

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