A new method of measuring the pulse based on facial video / 生物医学工程学杂志

This paper proposes a new method of non-contact pulse measurement by analyzing a clip of human facial video. The method is based on photo plethysmography (PPG) and independent component analysis (ICA) model. A clip of color facial video shot under normal lighting condition is firstly discomposed into RGB channel sequences. Secondly, by applying ICA to the 3 channel sequences, 3 new independent signals are obtained, among which one signal is close to human pulse wave. Thus the pulse can be measured. In this paper, the principles of PPG and ICA are briefly described and the measurement framework is proposed. The experimental results showed that this novel approach was reasonable and feasible.