Vision-Based Heart and Respiratory Rate Monitoring During Sleep -- A Validation Study for the Population at Risk of Sleep Apnea

A reliable, accessible, and non-intrusive method for tracking respiratory and heart rate is important for improving monitoring and detection of sleep apnea. In this study, an algorithm based on motion analysis of infrared video recordings was validated in 50 adults referred for clinical overnight polysomnography (PSG). The algorithm tracks the displacements of selected feature points on each sleep...