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Article

An Adaptive Median Filter Based on Sampling Rate for R-Peak Detection and Major-Arrhythmia Analysis

1
Daegu-Gyeongbuk Research Center, Electronics and Telecommunications Research Institute, Daegu 42994, Korea
2
TriBell Labs, Kyungpuk 38541, Korea
*
Author to whom correspondence should be addressed.
Sensors 2020, 20(21), 6144; https://doi.org/10.3390/s20216144
Received: 23 September 2020 / Revised: 22 October 2020 / Accepted: 26 October 2020 / Published: 29 October 2020
(This article belongs to the Special Issue ECG Monitoring System)
With the advancement of the Internet of Medical Things technology, many vital sign-sensing devices are being developed. Among the diverse healthcare devices, portable electrocardiogram (ECG) measuring devices are being developed most actively with the recent development of sensor technology. These ECG measuring devices use different sampling rates according to the hardware conditions, which is the first variable to consider in the development of ECG analysis technology. Herein, we propose an R-point detection method using an adaptive median filter based on the sampling rate and analyze major arrhythmias using the signal characteristics. First, the sliding window and median filter size are determined according to the set sampling rate, and a wider median filter is applied to the QRS section with high variance within the sliding window. Then, the R point is detected by subtracting the filtered signal from the original signal. Methods for detecting major arrhythmias using the detected R point are proposed. Different types of ECG signals were used for a simulation, including ECG signals from the MIT-BIH arrhythmia database and MIT-BIH atrial fibrillation database, signals generated by a simulator, and actual measured signals with different sampling rates. The experimental results indicated the effectiveness of the proposed R-point detection method and arrhythmia analysis technique. View Full-Text
Keywords: adaptive median; sampling rate; R peak; arrhythmia; heartrate variability adaptive median; sampling rate; R peak; arrhythmia; heartrate variability
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MDPI and ACS Style

Bae, T.W.; Lee, S.H.; Kwon, K.K. An Adaptive Median Filter Based on Sampling Rate for R-Peak Detection and Major-Arrhythmia Analysis. Sensors 2020, 20, 6144. https://doi.org/10.3390/s20216144

AMA Style

Bae TW, Lee SH, Kwon KK. An Adaptive Median Filter Based on Sampling Rate for R-Peak Detection and Major-Arrhythmia Analysis. Sensors. 2020; 20(21):6144. https://doi.org/10.3390/s20216144

Chicago/Turabian Style

Bae, Tae W., Sang H. Lee, and Kee K. Kwon 2020. "An Adaptive Median Filter Based on Sampling Rate for R-Peak Detection and Major-Arrhythmia Analysis" Sensors 20, no. 21: 6144. https://doi.org/10.3390/s20216144

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