Forensic Prescreening System Using Coded Aperture Snapshot Spectral Imager
Sehoon Lim, David C. Berends, Choongyeun Cho, Aveek K. Das, Michael Isnardi, Sek Chai
SPIE Multisensor, Multisource Information Fusion Conference 2014, May 2014
DOI: 10.1117/12.2053296
Abstract
We present a camera system for instantaneous, non-destructive capture of spectral signatures for forensic analysis. Our system detects highly probative samples in the forensic scene mixed by the multiple target objects by combining a coded aperture snapshot spectral imager with a multi-spectral detection algorithm. An Adaptive Cosine Estimator (ACE) is used to quantitatively detect and classify the probative samples from the decoded spectral datacube. In this paper, we demonstrate selected results using our system for luminescence characteristics and spectral classification of a number of samples.
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