Optimal wavelength selection for noncontact reflection photoplethysmography

Luis F. Corral Martinez; Gonzalo Paez; Marija Strojnik

doi:10.1117/12.903190

2 November 2011 Optimal wavelength selection for noncontact reflection photoplethysmography

Luis F. Corral Martinez, Gonzalo Paez, Marija Strojnik

Proceedings Volume 8011, 22nd Congress of the International Commission for Optics: Light for the Development of the World; 801191 (2011) https://doi.org/10.1117/12.903190
Event: International Commission for Optics (ICO 22), 2011, Puebla, Mexico

Abstract

In this work, we obtain backscattered signals from human forehead for wavelengths from 380 to 980 nm. The results reveal bands with strong pulsatile signals that carry useful information. We describe those bands as the most suitable wavelengths in the visible and NIR regions from which heart and respiratory rate parameters can be derived using long distance non-contact reflection photoplethysmography analysis. The latter results show the feasibility of a novel technique for remotely detection of vital signs in humans. This technique, which may include morphological analysis or maps of tissue oxygenation, is a further step to real non-invasive remote monitoring of patients.

Citation Download Citation

Luis F. Corral Martinez, Gonzalo Paez, and Marija Strojnik "Optimal wavelength selection for noncontact reflection photoplethysmography", Proc. SPIE 8011, 22nd Congress of the International Commission for Optics: Light for the Development of the World, 801191 (2 November 2011); https://doi.org/10.1117/12.903190

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