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Proceedings Paper

A field test study of our non-invasive thermal image analyzer for deceptive detection
Author(s): Sarun Sumriddetchkajorn; Armote Somboonkaew; Tawee Sodsong; Itthipol Promduang; Niti Sumriddetchkajorn
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Paper Abstract

We have developed a non-invasive thermal image analyzer for deceptive detection (TAD2) where the far-infrared data around the periorbital and nostril areas are simultaneously analyzed. Measured change in maximum skin temperature around two periorbital regions is converted to a relative blood flow velocity. A respiration pattern is also simultaneously determined via the ratio of the measured maximum and minimum temperatures in the nostril area. In addition, our TAD2 employs a simple normalized cross correlation scheme to independently track locations of the two periorbital and nostril areas. Our field case study from 7 subjects in two real crime scenes and with the use of our baseline classification criteria shows two-fold improvement in classification rate compared to our analysis using either the periorbital or nostril area alone.

Paper Details

Date Published: 13 July 2007
PDF: 9 pages
Proc. SPIE 6633, Biophotonics 2007: Optics in Life Science, 66331F (13 July 2007); doi: 10.1117/12.726638
Show Author Affiliations
Sarun Sumriddetchkajorn, National Science and Technology Development Agency (Thailand)
Armote Somboonkaew, National Science and Technology Development Agency (Thailand)
Tawee Sodsong, Ministry of Justice (Thailand)
Itthipol Promduang, Ministry of Justice (Thailand)
Niti Sumriddetchkajorn, Ministry of Justice (Thailand)


Published in SPIE Proceedings Vol. 6633:
Biophotonics 2007: Optics in Life Science
Jürgen Popp; Gert von Bally, Editor(s)

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