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RGB camera-based noncontact imaging of plethysmogram and spontaneous low-frequency oscillation in skin perfusion before and during psychological stress
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Paper Abstract

We investigated a non-contact imaging method to evaluate plethysmogram and vasomotion with a digital color camera. Monte Carlo simulation for light transport in skin tissue is used to specify a relation among the red-green-blue-values and hemoglobin contents. Applying the FFT band pass filters to each pixel of the sequential images for the total hemoglobin concentration along the time line, two-dimentional plethysmogram and vasomotion can be reconstructed. In vivo experiments with human skin before, during, and after auditory stimulation demonstrated the feasibility of the method to evaluate the activities of autonomic nervous systems.

Paper Details

Date Published: 20 February 2019
PDF: 7 pages
Proc. SPIE 10885, Optical Diagnostics and Sensing XIX: Toward Point-of-Care Diagnostics, 1088507 (20 February 2019); doi: 10.1117/12.2509752
Show Author Affiliations
Izumi Nishidate, Tokyo Univ. of Agriculture and Technology (Japan)
Chihiro Tanabe, Tokyo Univ. of Agriculture and Technology (Japan)
Daniel J. McDuff, Microsoft Research (United States)
Kazuya Nakano, Chiba Univ. (Japan)
Kyuichi Niizeki, Yamagata Univ. (Japan)
Yoshihisa Aizu, Muroran Institute of Technology (Japan)
Hideaki Haneishi, Chiba Univ. (Japan)

Published in SPIE Proceedings Vol. 10885:
Optical Diagnostics and Sensing XIX: Toward Point-of-Care Diagnostics
Gerard L. Coté, Editor(s)

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