Efficient Fiducial Point Detection of ECG QRS Complex Based on Polygonal Approximation
AbstractElectrocardiogram signal analysis is based on detecting a fiducial point consisting of the onset, offset, and peak of each waveform. The accurate diagnosis of arrhythmias depends on the accuracy of fiducial point detection. Detecting the onset and offset fiducial points is ambiguous because the feature values are similar to those of the surrounding sample. To improve the accuracy of this paper’s fiducial point detection, the signal is represented by a small number of vertices through a curvature-based vertex selection technique using polygonal approximation. The proposed method minimizes the number of candidate samples for fiducial point detection and emphasizes these sample’s feature values to enable reliable detection. It is also sensitive to the morphological changes of various QRS complexes by generating an accumulated signal of the amplitude change rate between vertices as an auxiliary signal. To verify the superiority of the proposed algorithm, error distribution is measured through comparison with the QT-DB annotation provided by Physionet. The mean and standard deviation of the onset and the offset were stable as
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Lee, S.; Jeong, Y.; Park, D.; Yun, B.-J.; Park, K.H. Efficient Fiducial Point Detection of ECG QRS Complex Based on Polygonal Approximation. Sensors 2018, 18, 4502.
Lee S, Jeong Y, Park D, Yun B-J, Park KH. Efficient Fiducial Point Detection of ECG QRS Complex Based on Polygonal Approximation. Sensors. 2018; 18(12):4502.Chicago/Turabian Style
Lee, Seungmin; Jeong, Yoosoo; Park, Daejin; Yun, Byoung-Ju; Park, Kil H. 2018. "Efficient Fiducial Point Detection of ECG QRS Complex Based on Polygonal Approximation." Sensors 18, no. 12: 4502.
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