Infrared Imaging Analysis for Thermal Comfort Assessment

Author

De Oliveira, F. ; Moreau, S. ; Gehin, C. ; Dittmar, A.

Author_Institution

Centre Sci. et Tech. Batiment, Nantes

fYear

2007

fDate

22-26 Aug. 2007

Firstpage

3373

Lastpage

3376

Abstract

Skin temperature is a relevant and effective indicator for objective evaluation of human sensations and thermal states according to the surrounding thermal stresses. Managed by skin blood flow, sympathetic nervous system (constriction and sweating), subcutaneous thermal structure and facial vein patterns, facial coetaneous temperature variability can give information non-invasively on many physiological functions. These informations are deduced from thermal images obtained by far infrared imaging (7 - 14 mum). The work presented here deals with facial thermographic image analysis. Thermal regions of interest are extracted, such as left and right front, left and right cheek, left and right periobital region. Each region is analyzed by the FFT power spectrum calculation regarding to specific spectral band.

Keywords

biomedical optical imaging; biothermics; fast Fourier transforms; infrared imaging; medical image processing; skin; FFT power spectrum; facial coetaneous temperature variability; facial thermographic image analysis; facial vein patterns; human sensation; infrared imaging analysis; skin blood flow; skin temperature; subcutaneous thermal structure; sympathetic nervous system; thermal comfort assessment; thermal images; Blood flow; Humans; Image analysis; Infrared imaging; Skin; Sympathetic nervous system; Temperature sensors; Thermal management; Thermal stresses; Veins; Body Temperature; Face; Hot Temperature; Humans; Image Interpretation, Computer-Assisted; Infrared Rays; Photography; Skin Physiological Phenomena; Thermosensing;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2007. EMBS 2007. 29th Annual International Conference of the IEEE

Conference_Location

Lyon

ISSN

1557-170X

Print_ISBN

978-1-4244-0787-3

Type

conf

DOI

10.1109/IEMBS.2007.4353054

Filename

4353054