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Hyperspectral Imaging for Non-Contact Analysis of Forensic Traces
Cullen, Patrick; Edelman, G.; Van Leeuwen, T.; Aalders, M.; Gaston, E.
Hyperspectral imaging (HSI) integrates conventional imaging and spectroscopy, to obtain both spatial and spectral information from a specimen. This technique enables investigators to analyze the chemical composition of traces and simultaneously visualize their spatial distribution. HSI offers significant potential for the detection, visualization, identification and age estimation of forensic traces. The rapid, non-destructive and non-contact features of HSI mark its suitability as an analytical tool for forensic science. This paper provides an overview of the principles, instrumentation and analytical techniques involved in hyperspectral imaging. We describe recent advances in HSI technology motivating forensic science applications, e.g. the development of portable and fast image acquisition systems. Reported forensic science applications are reviewed. Challenges are addressed, such as the analysis of traces on backgrounds encountered in casework, concluded by a summary of possible future applications.
Keyword(s): Forensic science; Hyperspectral imaging; Chemical imaging; Spectroscopic imaging; Detection; Identification; Aging; Food Science
Publication Date:
2012
Type: Journal article
Peer-Reviewed: Unknown
Institution: Dublin Institute of Technology
Citation(s): Articles
Publisher(s): Dublin Institute of Technology
File Format(s): application/pdf
First Indexed: 2012-12-07 05:55:16 Last Updated: 2017-12-14 06:59:21