Shi-Wei Zhang

Interpretable Reliability Control for Wearable PPG Heart Rate Estimation

Wearable photoplethysmography (PPG) can return a plausible heart rate (HR) after motion or poor optical coupling has made the measurement unreliable. We treat HR reporting as a reliability-control problem and introduce an interpretable signal quality index (SQI) layer that reports coverage and residual error. On PPG-Da...