Continuous wavelet filtering on webcam photoplethysmographic signals to remotely assess the instantaneous heart rate
An instantaneous heart rate detection method using a low-cost webcam is proposed. A wavelet transform is employed to filter the raw photoplethysmographic signal. The respiration signal is remotely extracted from the heart rate series. We examine performances under motion experiments on 12 healthy subjects. Our technique showed very high agreement (r>0.85) with reference (BVP) measurements.
webcam instantaneous heart rate continuous wavelet transform non-contact respiratory sinus arrhythmia photoplethysmography