The application of infrared chemical imaging to the detection and enhancement of latent fingerprints: Method optimization and further findings

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Show simple item record Tahtouh, M Despland, P Shimmon, R Kalman, JR Reedy, BJ 2009-12-21T02:28:47Z 2007-09
dc.identifier.citation Journal of Forensic Sciences, 2007, 52 (5), pp. 1089 - 1096
dc.identifier.issn 0022-1198
dc.identifier.other C1 en_US
dc.description.abstract Fourier transform infrared (FTIR) chemical imaging allows the collection of fingerprint images from backgrounds that have traditionally posed problems for conventional fingerprint detection methods. In this work, the suitability of this technique for the imaging of fingerprints on a wider range of difficult surfaces (including polymer banknotes, various types of paper, and aluminum drink cans) has been tested. For each new surface, a systematic methodology was employed to optimize settings such as spectral resolution, number of scans, and pixel aggregation in order to reduce collection time and file-size without compromising spatial resolution and the quality of the final fingerprint image. The imaging of cyanoacrylate-fumed fingerprints on polymer banknotes has been improved, with shorter collection times for larger image areas. One-month-old fingerprints on polymer banknotes have been successfully fumed and imaged. It was also found that FTIR chemical imaging gives high quality images of cyanoacrylate-fumed fingerprints on aluminum drink cans, regardless of the printed background. Although visible and UV light sources do not yield fingerprint images of the same quality on difficult, nonporous backgrounds, in many cases they can be used to locate a fingerprint prior to higher quality imaging by the FTIR technique. Attempts to acquire FTIR images of fingerprints on paper-based porous surfaces that had been treated with established reagents such as ninhydrin were all unsuccessful due to the swamping effect of the cellulose constituents of the paper. © 2007 American Academy of Forensic Sciences.
dc.language eng
dc.relation.isbasedon 10.1111/j.1556-4029.2007.00517.x
dc.title The application of infrared chemical imaging to the detection and enhancement of latent fingerprints: Method optimization and further findings
dc.type Journal Article
dc.parent Journal of Forensic Sciences
dc.journal.volume 5
dc.journal.volume 52
dc.journal.number 5 en_US
dc.publocation Oxford en_US
dc.identifier.startpage 1089 en_US
dc.identifier.endpage 1096 en_US SCI.Chemistry and Forensic Sciences en_US
dc.conference Verified OK en_US
dc.for 0399 Other Chemical Sciences
dc.personcode 040570
dc.personcode 000263
dc.personcode 850126
dc.personcode 980366
dc.percentage 100 en_US Other Chemical Sciences en_US
dc.classification.type FOR-08 en_US
dc.location.activity ISI:000249321500014 en_US
dc.location.activity United States
dc.description.keywords Chemical imaging
dc.description.keywords Cyanoacrylate
dc.description.keywords Fingermarks
dc.description.keywords Fingerprints
dc.description.keywords Forensic science
dc.description.keywords FTIR
dc.description.keywords Hyperspectral imaging
dc.description.keywords Infrared
dc.description.keywords Ninhydrin
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
pubs.organisational-group /University of Technology Sydney/Strength - Forensic Science
utslib.copyright.status Closed Access 2015-04-15 12:17:09.805752+10
pubs.consider-herdc true
utslib.collection.history School of Chemistry and Forensic Science (ID: 339)
utslib.collection.history Closed (ID: 3)

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