[1]WANG Xiaoyan,LU Huaxiang,JIN Min,et al.Wavelet entropy denoising algorithm of electrocardiogram signals based on correlation[J].CAAI Transactions on Intelligent Systems,2016,11(6):827-834.[doi:10.11992/tis.201611017]
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CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume:
11
Number of periods:
2016 6
Page number:
827-834
Column:
学术论文—机器学习
Public date:
2017-01-20
- Title:
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Wavelet entropy denoising algorithm of electrocardiogram signals based on correlation
- Author(s):
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WANG Xiaoyan1; LU Huaxiang1; 2; JIN Min1; GONG Guoliang1; MAO Wenyu1; CHEN Gang1
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1. Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China;
2. Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai 200031, China
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- Keywords:
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electrocardiogram signals; denoising; correlation; wavelet entropy; adaptively
- CLC:
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TP391
- DOI:
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10.11992/tis.201611017
- Abstract:
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In view of the baseline drift, power line interference and muscle noise of electrocardiogram (ECG) signals, the wavelet entropy denoising algorithm of ECG signals based on correlation was proposed. First, ECG signals were decomposed using wavelets to determine the number of scale of wavelet decomposition, and the lowest approximation coefficients were each set to zero, so as to remove the baseline drift. Then, the high-frequency wavelet coefficient of adjacent scales was processed by adaptively calculating the global threshold with the correlation coefficients between the adjacent scales, to remove the power line interference and the muscle noise. Last, the denoising signals were reconstructed using zero approximation coefficients and processed wavelet coefficients. Using this method, three kinds of noise were removed in one process of wavelet decomposition and reconstruction. Experiments using the MIT-BIH database and simulative data prove that the algorithm is much better than others in ECG denoising with low complexity.