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Variable Threshold Method for ECG R-peak Detection

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Abstract

In this paper, a wearable belt-type ECG electrode worn around the chest by measuring the real-time ECG is produced in order to minimize the inconvenient in wearing. ECG signal is detected using a potential instrument system. The measured ECG signal is transmits via an ultra low power consumption wireless data communications unit to personal computer using Zigbee-compatible wireless sensor node. ECG signals carry a lot of clinical information for a cardiologist especially the R-peak detection in ECG. R-peak detection generally uses the threshold value which is fixed. There will be errors in peak detection when the baseline changes due to motion artifacts and signal size changes. Preprocessing process which includes differentiation process and Hilbert transform is used as signal preprocessing algorithm. Thereafter, variable threshold method is used to detect the R-peak which is more accurate and efficient than fixed threshold value method. R-peak detection using MIT-BIH databases and Long Term Real-Time ECG is performed in this research in order to evaluate the performance analysis.

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Authors and Affiliations

  1. Dongseo University, Busan, South Korea

    Hsein-Ping Kew & Do-Un Jeong

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  1. Hsein-Ping Kew
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  2. Do-Un Jeong
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Correspondence to Hsein-Ping Kew.

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Kew, HP., Jeong, DU. Variable Threshold Method for ECG R-peak Detection. J Med Syst 35, 1085–1094 (2011). https://doi.org/10.1007/s10916-011-9745-7

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  • DOI: https://doi.org/10.1007/s10916-011-9745-7

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