Noncontact imaging photoplethysmography to effectively access.pdf (4.37 MB)
Noncontact imaging photoplethysmography to effectively access pulse rate variability
journal contribution
posted on 2016-05-20, 08:58 authored by Yu Sun, Sijung HuSijung Hu, V Azorin-Peris, Roy KalawskyRoy Kalawsky, Stephen GreenwaldNoncontact imaging photoplethysmography (PPG) can provide physiological assessment at various anatomical locations with no discomfort to the patient. However, most previous imaging PPG (iPPG) systems have been limited by a low sample frequency, which restricts their use clinically, for instance, in the assessment of pulse rate variability (PRV). In the present study, plethysmographic signals are remotely captured via an iPPG system at a rate of 200 fps. The physiological parameters (i.e., heart and respiration rate and PRV) derived from the iPPG datasets yield statistically comparable results to those acquired using a contact PPG sensor, the gold standard. More importantly, we present evidence that the negative influence of initial low sample frequency could be compensated via interpolation to improve the time domain resolution. We thereby provide further strong support for the low-cost webcam-based iPPG technique and, importantly, open up a new avenue for effective noncontact assessment of multiple physiological parameters, with potential applications in the evaluation of cardiac autonomic activity and remote sensing of vital physiological signs.
Funding
This report presents independent research commissioned by the National Institute for Health Research (NIHR) under the Invention for Innovation (i4i) program (Grant No. II-FS-0109-11005).
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
JOURNAL OF BIOMEDICAL OPTICSVolume
18Issue
6Pages
? - ? (9)Citation
SUN, Y. ... et al., 2013. Noncontact imaging photoplethysmography to effectively access pulse rate variability. Journal of Biomedical Optics, DOI: 10.1117/1.JBO.18.6.061205.Publisher
SPIE (© the authors)Version
- VoR (Version of Record)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution 3.0 Unported (CC BY 3.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/by/3.0/Publication date
2013Notes
© 2012 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.ISSN
1083-3668eISSN
1560-2281Publisher version
Language
- en