关键词: 心率, 非接触, 网络摄像头, 光电容积描记, 血液容积脉搏波

Abstract: Heart rate measurement is important for monitoring people’s physiological and body state. A method of measuring heart rate using a low-cost Webcam is proposed. The signal containing heartbeat information is extracted from face image sequences according to Photoplethysmography （PPG） principle. Blood Volume Pulse （BVP） is acquired by wavelet filtering followed by energy spectrum analysis utilized to calculate the Heart Rate （HR）. Experimental results indicate that this method has a high accuracy which can meet the requirement of pharmaceuticals industry standard. Benefitting from non-contact, convenience, and low-costs, it provides great promise for popularization of home healthcare and can further be applied to biomedical research.

Key words: Heart Rate（HR）, non-contact, Webcam, Photoplethysmography（PPG）, Blood Volume Pulse（BVP）