Detection of physiological changes after exercise via a remote optophysiological.pdf (904.6 kB)
Detection of physiological changes after exercise via a remote optophysiological imaging system
journal contribution
posted on 2016-08-03, 11:23 authored by Yu Sun, Sijung HuSijung Hu, V Azorin-Peris, Jia Zheng, Stephen Greenwald, Jonathon Chambers, Yisheng ZhuA study of blood perfusion mapping was performed with a remote opto-physiological imaging (OPI) system coupling a
sensitive CMOS camera and a custom-built resonant cavity light emitting diode (RCLED) ringlight. The setup is suitable
for the remote assessment of blood perfusion in tissue over a wide range of anatomical locations. The purpose of this
study is to evaluate the reliability and stability of the OPI system when measuring a cardiovascular variable of clinical
interest, in this case, heart rate. To this end, the non-contact and contact photoplethysmographic (PPG) signals obtained
from the OPI system and conventional PPG sensor were recorded simultaneously from each of 12 subjects before and
after 5-min of cycling exercise. The time-frequency representation (TFR) method was used to visualize the timedependent
behavior of the signal frequency. The physiological parameters derived from the images captured by the OPI
system exhibit comparable functional characteristics to those taken from conventional contact PPG pulse waveform
measurements in both the time and frequency domains. Finally and more importantly, a previously developed optophysiological
model was employed to provide a 3-D representation of blood perfusion in human tissue which could
provide a new insight into clinical assessment and diagnosis of circulatory pathology in various tissue segments.
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
Biomedical Optics, Photonics West 2011 Design and Quality for Biomedical Technologies IVVolume
7891Pages
. 78910E 1 - 8Citation
SUN, Y. ... et al., 2011. Detection of physiological changes after exercise via a remote optophysiological imaging system. Proceedings of SPIE, 7891, DOI: 10.1117/12.872723.Publisher
© SPIEVersion
- VoR (Version of Record)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2011Notes
© 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.ISBN
9780819484284ISSN
0277-786XeISSN
1996-756XPublisher version
Language
- en