A Survey on Non-Contact Heart Rate Estimation from Facial Video

Abstract

One of the most important health parameters and a critical indicator of the physiological condition of people is the heart rate (HR); thus, it is important to monitor. HR estimation from facial videos is a low- cost, simple, and comfortable method; therefore, it has enjoyed great interest in recent years. In this paper, we give a review of some public datasets used in evaluating non-contact HR estimation methods, the parameters of HR estimating from facial video system with a set of recent studies that dealt with them, review some of recent related reviews and surveys, and finally, the applications of non-contact HR monitoring system by a camera. This review shows that the non-contact photoplethysmography method attracted more interest since 2013. We can deduce that there was no general-purpose system that can fit all types of HR-monitoring, instead, the designer can first select the usage environment, then sets the suitable system parameters that are most fulfills the application demands.