Preliminary observations on the ability of hyperspectral imaging to provide detection and visualization of bloodstain patterns on black fabrics

Journal of Forensic Sciences
Rebecca L SchulerCara A Plese

Abstract

The analysis of bloodstain patterns can assist investigators in understanding the circumstances surrounding a violent crime. Bloodstains are routinely subjected to pattern analysis, which is inherently dependent upon the ability of the examiner to locate and visualize bloodstain patterns on items of evidence. Often, the ability to properly visualize bloodstain patterns is challenging, especially when the stain patterns occur on dark and/or patterned substrates. In this study, preliminary research was performed to better understand how near-infrared reflectance hyperspectral imaging (HSI) could be used to observe bloodstain patterns on commonly encountered black fabrics. The ability of HSI to visualize latent bloodstains on several commonly encountered substrates is demonstrated. The images acquired through HSI are of sufficient quality to allow for differentiation between stains produced from an impact mechanism or a transfer mechanism. This study also serves as a proof of concept in the differentiation of multiple staining materials. Because of its ability to generate spectral data, the data provide a preliminary separation of stains where more than one type of stain existed.

References

Jul 25, 2007·Journal of Forensic Sciences·Apollo Chun-Yen LinJames Chun-I Lee

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Citations

Sep 20, 2015·Forensic Science International : Synergy·Tom G SchotmanKarla G de Bruin
Mar 19, 2014·Journal of Forensic Sciences·Kyla L KershGreg Karim
Sep 5, 2014·Journal of Biophotonics·Liang Gao, R Theodore Smith
Oct 27, 2015·International Journal of Legal Medicine·V SterzikM Bohnert
Nov 11, 2014·Journal of Forensic Sciences·Gerda J EdelmanMaurice C Aalders
Sep 13, 2014·International Journal of Legal Medicine·M KettnerF Ramsthaler
Mar 5, 2016·International Journal of Legal Medicine·V Sterzik, M Bohnert
Aug 15, 2014·The Analyst·Carolina S SilvaAlberto Ferrer
Nov 10, 2017·Scientific Reports·Kirsten LangstraatArian van Asten
Mar 11, 2021·Applied Optics·J HlubučekK Žídek
May 1, 2021·Sensors·Maheen ZulfiqarSalvatore Distefano
Sep 16, 2021·Analytical Methods : Advancing Methods and Applications·Priya ShrivastavaSuman Nagpal
Sep 21, 2021·Lasers in Surgery and Medicine·Matthäus LinekVeronika Volgger

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