Observation of the human body thermoregulation and extraction of its vein signature using NIR and MWIR imaging

Nabila Bouzida; Abdelhakim Bendada; Xavier P. Maldague

doi:10.1117/12.818285

24 April 2009 Observation of the human body thermoregulation and extraction of its vein signature using NIR and MWIR imaging

Nabila Bouzida, Abdelhakim Bendada, Xavier P. Maldague

Author Affiliations +

Proceedings Volume 7313, Smart Biomedical and Physiological Sensor Technology VI; 73130N (2009) https://doi.org/10.1117/12.818285
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

Abstract

The article aims first to present a new study on the thermal regulatory response of the human skin surface while exposed to a cold environment. Our work has shown that when a cold stress is applied to the left hand, thermal infrared imaging (MWIR spectral band: 3-5 μm) allows a clear observation of a temperature rise on the right hand. Moreover, a frequency analysis was also carried out upon selected vein pixels of the images monitored during the same cold stress experiment. The objective was to identify the specific frequencies that could be linked to some physiological mechanisms of the human body. This kind of study could be very useful for the characterization of possible thermo-physiological pathologies. Besides thermoregulation, we also present in this article some results on the extraction of the hand vein pattern. Firstly, we show some vein extraction results obtained after image processing of the thermal images recorded in the thermal band (MWIR), then we compare this vein pattern to the signature obtained with a camera operating in the NIR spectral band (0.85-1.7 μm). This method could be used as a complementary means for finger print signatures in biometrics.

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Nabila Bouzida, Abdelhakim Bendada, and Xavier P. Maldague "Observation of the human body thermoregulation and extraction of its vein signature using NIR and MWIR imaging", Proc. SPIE 7313, Smart Biomedical and Physiological Sensor Technology VI, 73130N (24 April 2009); https://doi.org/10.1117/12.818285

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KEYWORDS

Veins

Near infrared

Mid-IR

Visualization

Thermography

Skin

Image processing

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