Engineering & Technology

Engineering & Technology

Measurements of Non Contact, Physiological Multi Parameter Using a Web Cam

Pages: 6  ,  Volume: 2  ,  Issue: 1 , March   2018
Received: 20 Mar 2018  ,  Published: 23 April 2018
Views: 108  ,  Download: 57

Authors

# Author Name
1 Devarajan

Abstract

This project presents a simple, low-cost method for measuring multiple physiological parameters using a basic webcam. Photoplethysmography (PPG) is a low-cost and non-invasive means of sensing the cardiovascular blood volume pulse (BVP) through variations in transmitted or reflected light sources. By applying independent component analysis on the color channels in video recordings. We extracted the blood volume pulse from the facial regions. Heart rate (HR), respiratory rate, and HR variability (HRV, an index for cardiac  autonomic  activity)  were  subsequently quantified  and  compared  to  corresponding measurements using Food and Drug Administration- approved sensors. High degrees of agreement were achieved between the measurements across all physiological  parameters.  This  technology  has significant potential for advancing personal health care and telemedicine.

Keywords

  • blood volume pulse
  • Autonomic nervous system
  • heart rate variability
  • independent component analysis
  • remote sensing
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