Why the study?
Does a non-contact optical imaging-based method accurately measure heart rate compared to reference technologies in human subjects?
Does a non-contact optical imaging-based method accurately measure heart rate compared to reference technologies in human subjects?
A novel optical imaging-based method using facial video and ambient light can accurately measure heart rate non-invasively, showing high correlation with reference technologies.
Supports non-contact HR monitoring development in select settings; leaves open validation in larger clinical cohorts.
Non-contact and remote measurements of vital physical signals are important for reliable and comfortable physiological self-assessment. We presented a novel optical imaging-based method to measure the vital physical signals. Using a digital camera and ambient light, the cardiovascular pulse waves were extracted better from human color facial videos correctly. And the vital physiological parameters like heart rate were measured using a proposed signal-weighted analysis method. The measured HRs consistent with those measured simultaneously with reference technologies (r=0.94, p<0.001 for HR). The results show that the imaging-based method is suitable for measuring the physiological parameters, and provide a reliable and comfortable measurement mode. The study lays a physical foundation for measuring multi-physiological parameters of human noninvasively.
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Yan et al. (2015) studied this question.
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