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Proceedings Paper

Remote sensing of stress using electro-optics imaging technique
Author(s): Tong Chen; Peter Yuen; Kan Hong; Aristeidis Tsitiridis; Firmin Kam; James Jackman; David James; Mark Richardson; William Oxford; Jonathan Piper; Francis Thomas; Stafford Lightman
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Paper Abstract

Emotional or physical stresses induce a surge of adrenaline in the blood stream under the command of the sympathetic nerve system, which, cannot be suppressed by training. The onset of this alleviated level of adrenaline triggers a number of physiological chain reactions in the body, such as dilation of pupil and an increased feed of blood to muscles etc. This paper reports for the first time how Electro-Optics (EO) technologies such as hyperspectral [1,2] and thermal imaging[3] methods can be used for the detection of stress remotely. Preliminary result using hyperspectral imaging technique has shown a positive identification of stress through an elevation of haemoglobin oxygenation saturation level in the facial region, and the effect is seen more prominently for the physical stressor than the emotional one. However, all results presented so far in this work have been interpreted together with the base line information as the reference point, and that really has limited the overall usefulness of the developing technology. The present result has highlighted this drawback and it prompts for the need of a quantitative assessment of the oxygenation saturation and to correlate it directly with the stress level as the top priority of the next stage of research.

Paper Details

Date Published: 25 September 2009
PDF: 12 pages
Proc. SPIE 7486, Optics and Photonics for Counterterrorism and Crime Fighting V, 748606 (25 September 2009); doi: 10.1117/12.830485
Show Author Affiliations
Tong Chen, Cranfield Univ. (United Kingdom)
Peter Yuen, Cranfield Univ. (United Kingdom)
Kan Hong, Cranfield Univ. (United Kingdom)
Aristeidis Tsitiridis, Cranfield Univ. (United Kingdom)
Firmin Kam, Cranfield Univ. (United Kingdom)
James Jackman, Cranfield Univ. (United Kingdom)
David James, Cranfield Univ. (United Kingdom)
Mark Richardson, Cranfield Univ. (United Kingdom)
William Oxford, Defence Science and Technology Lab. (United Kingdom)
Jonathan Piper, Defence Science and Technology Lab. (United Kingdom)
Francis Thomas, Univ. of Bristol (United Kingdom)
Stafford Lightman, Univ. of Bristol (United Kingdom)


Published in SPIE Proceedings Vol. 7486:
Optics and Photonics for Counterterrorism and Crime Fighting V
Colin Lewis, Editor(s)

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