A personalized on-line calibration for photoplethysmograph based wrist wearable sensor

Heart rate estimation from the wrist-based photo-plethysmography sensor possesses a great challenge due to its poor signal quality. The potential problems are categorized as the different optical response of diverse skin tone, inconsistency in sensor placement and off line sensor calibration. In this paper, we propose a system which attempts at personalizing the wrist PPG sensor calibration with a joint objective of maximizing signal quality and minimizing energy consumption. Preliminary assessment demonstrates the feasibility of our proposed design and implies the plausible solution to be employed in the real field.