Sunday, June 30, 2013

Tiny human pulse

Measuring the human pulse from tiny head movements to help diagnose cardiac disease
June 24, 2013
(It remember me Balistocardiography...)
Using direction and magnitude of movement of feature points for pulse signal extraction Researchers at MIT’s Computer Science and Artificial Intelligence Laboratory have developed a new algorithm that can accurately measure the heart rates of people depicted in ordinary digital video by analyzing imperceptibly small head movements that accompany the rush of blood caused by the heart’s contractions. In tests, the algorithm gave pulse measurements that were consistently … more…

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