Document Detail


PryJector: A Device for In Situ Visualization of Chemical and Physical Property Distributions on Surfaces Using Projection and Hyperspectral Imaging*(,†).
MedLine Citation:
PMID:  21418214     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
  Traditional forensic methods that highlight the spatial distribution of properties such as blood and fingerprints have two main disadvantages: they often apply chemicals that may influence further analyses, and they cannot easily be modified to search for new compounds/properties. A new instrument (called PryJector) avoids these problems by dynamically projecting back onto the surface under study spatially distributed information of compounds/properties (chemical images) obtained from multivariate analysis of hyperspectral images. Selectivity to target compounds/properties is ensured by multivariate modeling which makes the instrument much more flexible compared to traditional methods. The functionality of the PryJector is demonstrated in an application related to the detection of counterfeit pharmaceuticals where compounds otherwise indistinguishable to the human eye are made clearly visible by projection of false-colored chemical images. The PryJector is shown to be a noninvasive and very flexible instrument for highlighting spatial distributions of various compounds/properties.
Authors:
Bjørn K Alsberg; Trond Løke; Ivar Baarstad
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-3-21
Journal Detail:
Title:  Journal of forensic sciences     Volume:  -     ISSN:  1556-4029     ISO Abbreviation:  -     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-3-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0375370     Medline TA:  J Forensic Sci     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2011 American Academy of Forensic Sciences.
Affiliation:
Department of Chemistry, Norwegian University of Science and Technology (NTNU), Høgskoleringen 5d, N-7491, Trondheim, Norway. Norsk Elektro Optikk AS, P.O. Box 384, N-1471, Lørenskog, Norway.
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