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23 October 2018 Method of detection of resting heart rate based on imaging photoplethysmography technology
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Resting heart rate (RHR) is considered an important biomedical indicator to evaluate cardiovascular function. High RHR is an important prognostic factor for sudden cardiac death and heart failure in the general population, and especially among patients with known cardiac disease. The imaging photoplethysmography (IPPG) technology is used to achieve the accurate detection of RHR signal, which has the advantages of low cost, simple operation, fast acquisition speed etc. In this paper, we propose a new simple, inexpensive and easy-to-use method to measure the RHR in vivo. The result shows that Fast Fourier Transform with Hamming window filters, band-pass filter gives more accurate results. The color change of the fingertip is enlarged by using the mobile phone camera. From the distribution of color change of the fingertip, the RHR is estimated with the primary calibration result of the relationship between color variation and the blood volume change.
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Xiaoman Zhang, Canwang Chen, Cuncheng Weng, Biying Yu, Shulian Wu, Jianyong Cai, Huaqin Wu, and Hui Li "Method of detection of resting heart rate based on imaging photoplethysmography technology", Proc. SPIE 10820, Optics in Health Care and Biomedical Optics VIII, 108203F (23 October 2018);

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