3 March 2017 Unobtrusive monitoring of heart rate using a cost-effective speckle-based SI-POF remote sensor
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Abstract
A novel speckle-based sensing technique for cost-effective heart-rate monitoring is demonstrated. This technique detects periodical changes in the spatial distribution of energy on the speckle pattern at the output of a Step-Index Polymer Optical Fiber (SI-POF) lead by using a low-cost webcam. The scheme operates in reflective configuration thus performing a centralized interrogation unit scheme. The prototype has been integrated into a mattress and its functionality has been tested with 5 different patients lying on the mattress in different positions without direct contact with the fiber sensing lead.
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P. J. Pinzón, D. S. Montero, A. Tapetado, C. Vázquez, "Unobtrusive monitoring of heart rate using a cost-effective speckle-based SI-POF remote sensor", Proc. SPIE 10063, Dynamics and Fluctuations in Biomedical Photonics XIV, 1006305 (3 March 2017); doi: 10.1117/12.2255060; https://doi.org/10.1117/12.2255060
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