title: Remote measurements of heart and respiration rates for telemedicine.
abstract: Non-contact and low-cost measurements of heart and respiration rates are highly desirable for telemedicine. Here, we describe a novel technique to extract blood volume pulse and respiratory wave from a single channel images captured by a video camera for both day and night conditions. The principle of our technique is to uncover the temporal dynamics of heart beat and breathing rate through delay-coordinate transformation and independent component analysis-based deconstruction of the single channel images. Our method further achieves robust elimination of false positives via applying ratio-variation probability distributions filtering approaches. Moreover, it enables a much needed low-cost means for preventing sudden infant death syndrome in new born infants and detecting stroke and heart attack in elderly population in home environments. This noncontact-based method can also be applied to a variety of animal model organisms for biomedical research.
authors.affiliation: Brain and Behavior Discovery Institute and Department of Neurology, Georgia Regents University, Augusta, Georgia, United States of America ; Yunnan Banna Primate Model Research Center, BanNa Biomedical Research Institute, XiShuangBanNa, Yunnan, China.
authors.forename: Fang
authors.initials: F
authors.lastname: Zhao
authors.forename: Meng
authors.initials: M
authors.lastname: Li
authors.forename: Yi
authors.initials: Y
authors.lastname: Qian
authors.forename: Joe Z
authors.initials: JZ
authors.lastname: Tsien
mesh_terms: D000328:Adult; D005260:Female; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D058998:Remote Sensing Technology; D056152:Respiratory Rate / Q000502:physiology*; D017216:Telemedicine / Q000379:methods*