Real-Time Physiological Measurement and Visualization Using a Synchronized Multi-camera System
Name
Gupta_2016_Realtime.pdf
Description
Accepted version
Size
19.8 MB
Format
Unknown
Checksum (MD5)
a3ece09828a03b8f2bd77b218425b9f3
Author(s)
Gupta, Otkrist
McDuff, Daniel
Raskar, Ramesh
Date Issued
June 2016
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
Gupta, Otkrist, McDuff, Daniel and Raskar, Ramesh. 2016. "Real-Time Physiological Measurement and Visualization Using a Synchronized Multi-camera System."
Version
Author's final manuscript
Abstract
© 2016 IEEE. Remote physiological measurement has widespread implications in healthcare and affective computing. This paper presents an efficient system for remotely measuring heart rate and heart rate variability using multiple low-cost digital cameras in real-time. We combine an RGB camera, monochrome camera with color filter and a thermal camera to recover the blood volume pulse (BVP). We show that using multiple cameras in synchrony yields the most accurate recovery of the BVP signal. The RGB combination is not optimal. We show that the thermal camera improves performance of measurement under dynamic ambient lighting but the thermal camera alone is not enough and accuracy can be improved by adding more spectral channels. We present a real-time prototype that allows accurate physiological measurement combined with a novel user interface to visualize changes in heart rate and heart rate variability. Finally, we propose how this system might be used for applications such as patient monitoring.
MIT Department
Massachusetts Institute of Technology. Media Laboratory
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1109/CVPRW.2016.46
