Objective Today mobile health-monitoring devices calculate heart rate and its variability
mostly from the photoplethysmogram (PPG). Minimizing the power consumption is crucial …

Abstract Background and Objective The imaging photoplethysmography method is a non-
contact and non-invasive measurement method that usually uses surrounding illumination …

This work compares several fiducial points to detect the arrival of a new pulse in a
photoplethysmographic signal using the built-in camera of smartphones or a …

This paper presents an algorithm for the measurement of the human heart rate, using
photoplethysmography (PPG), ie, the detection of the light at the skin surface. The signal …

Heart rate variability (HRV) has become a useful tool in analysis of cardiovascular system in
both research and clinical fields. HRV has been also used in other applications such as …

Background: A growing number of wearable devices claim to provide accurate, cheap and
easily applicable heart rate variability (HRV) indices. This is mainly accomplished by using …

Heart rate variability (HRV) is a noninvasive marker for the cardiovascular system and the
substantial influence of this system on the autonomous nervous system (ANS). Contact and …

Camera-based remote photoplethysmography (rPPG) enables low-cost, non-contact
cardiovascular activity monitoring. However, applying rPPG to practical use has some …

Background: The aim of this study was to determine the accuracy of a freely available
smartphone application, Cardiio app (Cardiio, Inc., Cambridge, MA), to measure heart rate …

The purpose of this study is to make use of visible light reflected mode
photoplethysmographic (PPG) imaging for heart rate (HR) monitoring via smartphones. The …