Open access
Oct 2026
Estimating heart rate variability using facial video photoplethysmography: a pilot validation study
Video photoplethysmography (vPPG) uses a digital camera to detect pulsations in the blood vessels of the skin, which can be used to estimate various physiological parameters. The aim of this study was to investigate the accuracy and precision of heart rate variability (HRV) indices estimated using a smartphone came...
L. Pstras, T. Okupnik, B. Ponikowska et al.
· Scientific Reports · 0 citations