A Physiology- and Measurement-Informed Framework for Evaluating PPG Features in Cuffless Blood Pressure Estimation.
Continuous and cuffless blood pressure (BP) estimation using photoplethysmography (PPG) has considerable potential for wearable health monitoring. However, PPG records peripheral optical blood-volume-related changes rather than arterial pressure directly, and its waveform is jointly shaped by systemic hemodynamics, loc...