期刊名称：International Journal of Advances in Engineering and Management
电子版ISSN：2395-5252
出版年度：2021
卷号：3
期号：7
页码：231-238
DOI：10.35629/5252-030626092616
语种：English
出版社：IJAEM JOURNAL
摘要：Heart rate of a person is a very crucial parameter concerning a person’s physical state. It’s directly related to a person’s well-being. Although, several devices such as smart watches, portable heart-rate monitor etc. are available in the market which can be used to monitor heart-rate on a regular basis and have the capability to send alerts if any unexpected curve is observed in the pattern, these devices usually require a contact with the skin to measure the heart-rate and are expensive. Since there is an increasing widespread use of camera equipped devices in our daily lives, the prospects to employ remote photoplethysmography (rPPG) are vast. A camera can be used to perceive variations in reflection and absorption of light from skin that is otherwise not noticeable with naked eye. Camera based remote photoplethysmography assists noncontact and low-cost vascular activity monitoring. It is very important to manage the aspects such as illumination, selection of proper region of interest, correct estimation of signal and escalation of signal to noise ratio to remove any unwanted disturbances in order to get accurate results. In this paper, steps involved in remote photoplethysmography and the implementation of these steps are discussed.
