Abstract
This paper is devoted to improving the accuracy of human pulse measurement by RGB video stream analysis. For this purpose, a study was conducted the influence of the size, location and stability of the region of interest on contactless human pulse measurement results.
Highlights
The great interest are the studies of the mental and physical state of a person by contactless methods using digital cameras
Human skin contains a large number of small blood vessels, which are filled with blood with each heart cycle, thereby causing a change in the intensity of light reflected from the skin
Information about heart rate is contained in the photoplethysmographic signal obtained from the videostream of a person’s face
Summary
The great interest are the studies of the mental and physical state of a person by contactless methods using digital cameras. These methods can be useful for developing person’s condition monitoring system, such as candidate assessment for interviews, vehicle driver monitoring, and others. Human skin contains a large number of small blood vessels, which are filled with blood with each heart cycle, thereby causing a change in the intensity of light reflected from the skin. These changes are not visible to the naked eye, but they can be fixed with ordinary digital cameras. The quality and accuracy of the signal strongly depends on the choice of the area of the face used for the analysis
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