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Proceedings Paper

Improved tunable filter-based multispectral imaging system for detection of blood stains on construction material substrates
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Paper Abstract

We present the improved tunable filter based multispectral imaging system for detecting blood stains on construction materials. Based upon the reflectance and Kubelka Munk absorbance spectra stocked from our previous work, we modify the blood discrimination criteria to make the system more efficient by replacing the old criteria which make use of polynomial fitting with new criteria associated with a few wavelengths images. The newly established criteria are tested to be able to detect blood against other stains almost as efficient as the old criteria, while the number of spectral images required for detecting blood stains are reduced significantly from 64 to 9 spectral images. The reduction of required spectral images will reduce the time needed for image capturing and blood detection criteria application with little sacrificing of the specificity and sensitivity of the system.

Paper Details

Date Published: 7 June 2013
PDF: 7 pages
Proc. SPIE 8883, ICPS 2013: International Conference on Photonics Solutions, 888316 (7 June 2013); doi: 10.1117/12.2021592
Show Author Affiliations
Suwatwong Janchaysang, King Mongkut's Institute of Technology Ladkrabang (Thailand)
Sarun Sumriddetchkajorn, National Electronics and Computer Technology Ctr. (Thailand)
Prathan Buranasiri, King Mongkut's Institute of Technology Ladkrabang (Thailand)

Published in SPIE Proceedings Vol. 8883:
ICPS 2013: International Conference on Photonics Solutions
Prathan Buranasiri; Sarun Sumriddetchkajorn, Editor(s)

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