Introducing a combined approach of empirical mode decomposition and PCA methods for maternal and fetal ECG signal processing.

Authors:
Saeed Mohaqeqi, PhD
Saeed Mohaqeqi, PhD
Shahed University
Deep Learning, Medical Image Processing, Python Programming
Karaj, Alborz | Iran (Islamic Republic of)

J Matern Fetal Neonatal Med 2016 Oct 22;29(19):3104-9. Epub 2016 Jan 22.

a Department of Biomedical Engineering, Faculty of Engineering , Shahed University , Tehran , Iran and.

Objectives: The purpose of this study was to evaluate the effectiveness of the non-linear adaptive combined approach on the analysis of maternal and fetal signals corrupted by noise.

Methods: Empirical mode decomposition (EMD) is a non-linear adaptive technic for data analysis and has been widely used in biomedical data. When we apply EMD on ECG signals, the number of modes that contain cardiac information may vary regarding the subject, type of the signal and recording conditions. This fact can cause some difficulties in signal reconstruction and noise removal using the derived modes. For overcoming this issue, we designed a method to combine principal component analysis (PCA) method with EMD to remove the correlation between the calculated modes and provide a smaller set of uncorrelated orthogonal.

Results: We have developed a combined method that proves the power of using PCA on the output of EMD method. The combined method reduces the power of oscillatory artifacts of the baseline. Thus, the PCA-EMD combination provides a noise-free signal.

Conclusions: The combination of EMD and PCA methods worked well in being adaptive (from of EMD) and reconstruction (from PCA). It has been proved that this combined method is helpful in separating the signal components, especially in extracting the pure data from the baseline fluctuations.

Download full-text PDF

Source
http://dx.doi.org/10.3109/14767058.2015.1114089DOI Listing
October 2016
6 Reads

Publication Analysis

Top Keywords

combined method
12
mode decomposition
8
pca methods
8
maternal fetal
8
non-linear adaptive
8
empirical mode
8
combined approach
8
emd
6
method
6
pca
5
correlation calculated
4
pca method
4
calculated modes
4
remove correlation
4
method emd
4
emd remove
4
smaller set
4
orthogonalresults developed
4
developed combined
4
uncorrelated orthogonalresults
4

References

(Supplied by CrossRef)

Souretis G et al.
In: IEEE 15th International Conference on Digital Signal Processing 2007

Claasen T. et al.
Philips J Res 1980

Flandrin P. et al.
1998

Pan N et al.
In: IEEE Joint Meeting of the 6th International Symposium on Noninvasive Functional Source Imaging of the Brain and Heart and the International Conference on Functional Biomedical Imaging 2007

Ortiz MR et al.
In: IEEE Computers in Cardiology 2005

Similar Publications