Accuracy of heart rate variability estimation by photoplethysmography using an smartphone : processing optimization and fiducial point selection
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Cita com:
hdl:2117/85019
Tipus de documentText en actes de congrés
Data publicació2015
EditorInstitute of Electrical and Electronics Engineers (IEEE)
Condicions d'accésAccés obert
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continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
This work compares several fiducial points to
detect the arrival of a new pulse in a photoplethysmographic
signal using the built-in camera of smartphones or a
photoplethysmograph. Also, an optimization process for the
signal preprocessing stage has been done. Finally we
characterize the error produced when we use the best cutoff
frequencies and fiducial point for smartphones and
photopletysmograph and compare if the error of smartphones
can be reasonably be explained by variations in pulse transit
time. The results have revealed that the peak of the first
derivative and the minimum of the second derivative of the
pulse wave have the lowest error. Moreover, for these points,
high pass filtering the signal between 0.1 to 0.8 Hz and low pass
around 2.7 Hz or 3.5 Hz are the best cutoff frequencies. Finally,
the error in smartphones is slightly higher than in a
photoplethysmograph
CitacióFerrer, V., Guede, F., Fernandez, M., Ramos, J., Garcia, M. Accuracy of heart rate variability estimation by photoplethysmography using an smartphone : processing optimization and fiducial point selection. A: Annual International Conference of the IEEE Engineering in Medicine and Biology Society. "Proceedings of the Engineering in Medicine and Biology Society (EMBC), 2015". Milan: Institute of Electrical and Electronics Engineers (IEEE), 2015, p. 5700-5703.
ISBN978-1-4244-9270-1
Versió de l'editorieeexplore.ieee.org
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