Let home nursing assistant robots see your heart rate

PurposeThis paper aims to design a vision-based non-contact real-time accurate heart rate (HR) measurement framework for home nursing assistant.Design/methodology/approachThe study applied Second-Order Blind Signal Identification (SOBI) algorithm to extract remote HR signal and analyzed it with Fast Fourier Transform (FFT). Multiple regions of interest are chosen and analyzed to obtain a more accurate result.FindingsAn accurate non-contact heart rate (HR) measurement framework is proposed and proved to be efficient.Originality/valueThe contributions of this HR measurement framework are as follows: accurate measurement of HR, real-time performance, robust under various scenes such as conversation, lightweight computation which is suitable and necessary for home nursing assistance. This framework is designed to be flexibly used in various real-life scenes such as domestic health assistance and affectively intelligent agents and is proved to be robust under such scenes.