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A novel biophotonic system for non-contact hemodynamic imaging

Robert Amelard

Shifting from acute toward preventive healthcare is an important step for reducing the impact of heart-related illnesses. An important part of this shift is developing technologies for continuous non-intrusive physiological monitoring. Photoplethysmographic imaging systems are optical solutions for non-contact cardiovascular monitoring from a distance. This camera-based technology enables physiological monitoring in situations where contact-based devices may be problematic or infeasible, such long-term continuous monitoring, activity monitoring, and multi-individual monitoring. In this talk, I will present our imaging system, Coded Hemodynamic Imaging (CHI), which is capable of spatial and temporal hemodynamic perfusion assessment. CHI is an LED-based imaging system capable of elucidating important cardiovascular characteristics for preventive monitoring. The light-tissue interaction model will be presented, as well as recent results in areas such as pulse transit visualization, arrhythmia detection, and automatic pulse signal extraction.

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