Remote Photoplethysmography (rPPG) for Contactless Blood Oxygen Saturation Monitoring

The increasing demand for healthcare technologies in Ambient Assisted Living, accentuated by recent global health challenges, necessitates advanced solutions for continuous and non-invasive vital sign monitoring. This research addresses this imperative by introducing a novel application utilizing remote photoplethysmography-based techniques. Focused on frail and elderly individuals, the application aims to measure key vital signs, like SpO2. Unlike traditional methods, our approach requires no wearable sensors, providing a comfortable and convenient monitoring solution. The application's development involves a comprehensive pipeline for vital sign estimation, overcoming challenges posed by diverse skin tones and facial characteristics in elderly subjects. The system had achieved notable results in terms of accuracy measuring 1.2 in MSE and 1.09 in RMSE. This innovative application represents a significant step forward in non-invasive vital sign monitoring, offering a promising avenue for enhancing healthcare in Ambient Assisted Living environments.