An integrated EMD adaptive threshold denoising method for reduction of noise in ECG

PloS One
Miao Zhang, Guo Wei

Abstract

Electrocardiogram (ECG) denoising is a biomedical research area of great importance. In this paper, an integrated empirical mode decomposition adaptive threshold denoising method (IEMD-ATD) is proposed for processing ECGs. Three methods are included in the IEMD-ATD. First, an integrated EMD method based on a framework of complete ensemble empirical mode decomposition with adaptive noise (CEEMDAN) is proposed to improve the decomposition quality and stability of raw ECGs. Second, a new grouping method for intrinsic mode functions (IMFs) is developed based on the energy and eigenperiod of IMFs. The grouping method is able to determine the boundaries among high-frequency noise predominant IMFs, useful information predominant IMFs and IMFs with low-frequency noises. Finally, an adaptive threshold denoising method is derived and used for denoising high-frequency noise predominant IMFs. There are two main contributions: 1) an adaptive threshold determination method based on the 3σ criterion and 2) a peak filtering denoising method for retaining useful information contained in the values smaller than the threshold. Synthetic and real ECG data in the MIT-BIH database are utilised in experiments to illustrate the effectiveness of IEMD-A...Continue Reading

References

Apr 3, 2003·IEEE Transactions on Bio-medical Engineering·Patrick E McSharryLeonard A Smith
Feb 12, 2008·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·S G ChangM Vetterli
Sep 25, 2010·Advances in Experimental Medicine and Biology·Sara Moein
Dec 16, 2010·IEEE Transactions on Bio-medical Engineering·Rik VullingsJan W M Bergmans
Nov 30, 2012·IEEE Transactions on Bio-medical Engineering·Lukáš SmitalIvo Provazník

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Citations

Sep 1, 2021·Journal of Medical Engineering & Technology·Haroon Yousuf Mir, Omkar Singh

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Software Mentioned

CEEMDAN
ATD
Cust
FECGSYN
MATLAB
Windows
IEMD
ECGSYN
Syn04
Open Source ECG Toolbox package ( OSET

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