A mobile app for contactless measurement of vital signs through remote Photoplethysmography

The healthcare domain has undergone a huge transformation thanks to the availability of new technologies. In particular, health monitoring systems have entered everyday life without interfering with the daily routine. Mobile phones are increasingly used as health monitoring systems by means of ad-hoc applications. In this work, we propose a mobile app for contactless monitoring of vital signs, such as heart rate and blood oxygen saturation. Differently from the other devices in the literature, it is able to measure vital signs from the analysis of short videos through the use of remote photoplethysmography technology. A client-server architecture has been developed to run the signal and video processing on the server while implementing video acquisition and communication with the user on the smartphone. Experiments have shown the effectiveness of the developed app in accurately measuring vital parameters.