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Non-Contact Pulse Monitoring Using Live Imaging
Abstract
In this paper, the authors describe a novel non-invasive technique for monitoring pulse rate using live imaging. This method is based on the finding that brightness of the skin varies with pulsation due to the effects of blood scattering. The technical methods for image capture and data processing are described. The mechanism of light reflection inside the skin is also described using a layer model consisting of stratum corneum, epidermis, and dermis. This non-contact measurement method can yield natural physiological data during regular daily activities, and thus appears suitable for in-home healthcare monitoring.
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