Comparison of scientific CMOS camera and webcam for monitoring cardiac pulse after exercise
journal contributionposted on 2016-08-03, 09:09 authored by Yu Sun, Charlotte Papin, V Azorin-Peris, Roy KalawskyRoy Kalawsky, Stephen Greenwald, Sijung HuSijung Hu
In light of its capacity for remote physiological assessment over a wide range of anatomical locations, imaging photoplethysmography has become an attractive research area in biomedical and clinical community. Amongst recent iPPG studies, two separate research directions have been revealed, i.e., scientific camera based imaging PPG (iPPG) and webcam based imaging PPG (wPPG). Little is known about the difference between these two techniques. To address this issue, a dual-channel imaging PPG system (iPPG and wPPG) using ambient light as the illumination source has been introduced in this study. The performance of the two imaging PPG techniques was evaluated through the measurement of cardiac pulse acquired from the face of 10 male subjects before and after 10 min of cycling exercise. A time-frequency representation method was used to visualize the time-dependent behaviour of the heart rate. In comparison to the gold standard contact PPG, both imaging PPG techniques exhibit comparable functional characteristics in the context of cardiac pulse assessment. Moreover, the synchronized ambient light intensity recordings in the present study can provide additional information for appraising the performance of the imaging PPG systems. This feasibility study thereby leads to a new route for non-contact monitoring of vital signs, with clear applications in triage and homecare.
This work was supported by the National Institute for Health Research under Grant No. FPD1 II-FS-0109-11005.
- Mechanical, Electrical and Manufacturing Engineering
Published inApplications of Digital Image Processing XXXIV Applications of Digital Image Processing XXXIV, Proc of SPIE
Pages. 1 - 7
CitationSUN, Y. ... et al., 2011. Comparison of scientific CMOS camera and webcam for monitoring cardiac pulse after exercise. Proceedings of SPIE, 8135, DOI: 10.1117/12.893362.
- VoR (Version of Record)
Publisher statementThis work is made available according to the conditions of the Creative Commons Attribution 4.0 International (CC BY 4.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/ by/4.0/
Notes© 2011 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.