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Accurate tunable-Q wavelet transform based method for QRS complex detection
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DOI：10.1016/j.compeleceng.2019.01.025.png)
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The patient monitoring and diagnosis using electrocardiogram (ECG) signal involve accurate QRS complex detection. However, the reliability of QRS detection is limited by the presence of variety of noises and morphologies. A high performance QRS complex detection scheme based on the tunable-Q wavelet transform (TQWT) is presented in this paper. The tunable parameters of TQWT can improve the localization of QRS when selected suitably. These parameters help to choose appropriate mother wavelet and proper sub-band of interest with fine separation from the undesired sub-bands. The method starts with TQWT based decomposition and reconstruction of the ECG signal with optimally selected input parameters and sub-bands. The correntropy envelope is computed from the resultant QRS enhanced signal which in turn assists the QRS localization. Our proposed method has yielded an average detection accuracy of 99.88%, sensitivity of 99.89% and positive productivity of 99.83% on the MIT-BIH arrhythmia database. (C) 2019 Elsevier Ltd. All rights reserved.
Keyword:
TQWT
ECG
QRS complex
Correntropy
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Design of high performance QRS complex detector for wearable healthcare devices using biorthogonal spline wavelet transform.png)
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