Journal of information and communication convergence engineering

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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Extracting Heart Rate Variability from a Smartphone Camera

  • Lenskiy, Artem A. (Department of Information Communication and Engineering, Korea University of Technology and Education) ;
  • Aitzhan, Yerlan (Department of Information Communication and Engineering, Korea University of Technology and Education)
  • Received : 2013.04.04
  • Accepted : 2013.05.28
  • Published : 2013.09.30
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Abstract

It is known that blood circulation in human body causes the skin tone to change concurrently with heartbeats. A number of apps have been developed to measure the heartbeat using smartphone camera; however, no any further analysis is performed. In this paper we propose an algorithm that detects heartbeats from the phone's camera and further extracts the heart rate variability (HRV). We compare the HRV extracted from the camera with the HRV extracted from the electrocardiogram. We estimated a number of commonly used HRV characteristics and compared them. Our results show that smartphone camera leads to slightly overestimated characteristics although the difference in extracted HRV signals is negligible. As a consequence we suggest that a smartphone camera can be employed in a quick heart diagnosis and diagnosis of autonomic nervous system.

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