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Pre-processing and extraction techniques for vital signs analysis from phonocardiographic-based interferometric fiber-optic sensor
Author(s): Radek Martinek; Radana Kahankova; Nela Strbikova; Jakub Cubik; Stanislav Kepak; Marcel Fajkus; Jan Nedoma; Martin Novak; Jan Jargus
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Paper Abstract

This paper deals with methods for processing signals from an optical interferometer to monitor vital signs (Respiration Rate and Heart Rate). Optical interferometer signals are contaminated by variety of technical and biological artifacts (motion artifacts, hospital/patient-generated noise, etc.). Tested optical sensors are very sensitive, it therefore crucial to reduce such unwanted signals. In this article, a complex application for processing the signals from optical interferometer based on virtual instrumentation was developed. The experiments were conducted on data sensed by optical interferometer using a National Instruments card NI USB-6216 BNC and application in the LabVIEW environment. Frequency selective filters were tested in the experiments. The results obtained by using optical interferometer were statistically compared with the ECG and PCG reference. According to the results, optical interferometers are able to measure both the Respiration and Heart Rate under the given conditions. Unfortunately, the measurement is very difficult to replicate in the hospital environment, which is the primary reason why these methods are not used in clinical practice.

Paper Details

Date Published: 14 May 2018
PDF: 8 pages
Proc. SPIE 10654, Fiber Optic Sensors and Applications XV, 106541E (14 May 2018); doi: 10.1117/12.2304540
Show Author Affiliations
Radek Martinek, VŠB-Technical Univ. of Ostrava (Czech Republic)
Radana Kahankova, VŠB-Technical Univ. of Ostrava (Czech Republic)
Nela Strbikova, VŠB-Technical Univ. of Ostrava (Czech Republic)
Jakub Cubik, VŠB-Technical Univ. of Ostrava (Czech Republic)
Stanislav Kepak, VŠB-Technical Univ. of Ostrava (Czech Republic)
Marcel Fajkus, VŠB-Technical Univ. of Ostrava (Czech Republic)
Jan Nedoma, VŠB-Technical Univ. of Ostrava (Czech Republic)
Martin Novak, VŠB-Technical Univ. of Ostrava (Czech Republic)
Jan Jargus, VŠB-Technical Univ. of Ostrava (Czech Republic)


Published in SPIE Proceedings Vol. 10654:
Fiber Optic Sensors and Applications XV
Alexis Mendez; Christopher S. Baldwin; Henry H. Du, Editor(s)

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