Photoplethysmography
February 23, 2016 | Terry Sharrer
Researchers at the University of Waterloo (Ontario) have developed an infrared imaging system for measuring blood flow simultaneously at several arterial points. The system consists of a LEC light source (650nm), a high-speed camera (100 fps) which can cover the entire body, and calculation compensation for ambient light in the room. This method, called photoplethysmography, is not new, but being able to scan multiple arterial sites at a distance is new. Click on the Scientific Reports link for more details. MORE
Image Credit: University of Waterloo (Ontario)/ Fred Hunsberger and GizMag.com