Fig. 2: Overview of the main features extracted from PPG signals used in the studies reviewed (see Tables 1–3).
From: Photoplethysmography based atrial fibrillation detection: a review
SpO2 oxygen saturation, PRbpm pulse rate (beats per minute).
Fig. 2: Overview of the main features extracted from PPG signals used in the studies reviewed (see Tables 1–3). | npj Digital Medicine
