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Probabilistic Source Separation for Robust Fetal Electrocardiography
Joint Authors
Source
Computational and Mathematical Methods in Medicine
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-12-01
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Blind source separation (BSS) techniques are widely used to extract signals of interest from a mixture with other signals, such as extracting fetal electrocardiogram (ECG) signals from noninvasive recordings on the maternal abdomen.
These BSS techniques, however, typically lack possibilities to incorporate any prior knowledge on the mixing of the source signals.
Particularly for fetal ECG signals, knowledge on the mixing is available based on the origin and propagation properties of these signals.
In this paper, a novel source separation method is developed that combines the strengths and accuracy of BSS techniques with the robustness of an underlying physiological model of the fetal ECG.
The method is developed within a probabilistic framework and yields an iterative convergence of the separation matrix towards a maximum a posteriori estimation, where in each iteration the latest estimate of the separation matrix is corrected towards a tradeoff between the BSS technique and the physiological model.
The method is evaluated by comparing its performance with that of FastICA on both simulated and real multichannel fetal ECG recordings, demonstrating that the developed method outperforms FastICA in extracting the fetal ECG source signals.
American Psychological Association (APA)
Vullings, Rik& Mischi, Massimo. 2013. Probabilistic Source Separation for Robust Fetal Electrocardiography. Computational and Mathematical Methods in Medicine،Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-447189
Modern Language Association (MLA)
Vullings, Rik& Mischi, Massimo. Probabilistic Source Separation for Robust Fetal Electrocardiography. Computational and Mathematical Methods in Medicine No. 2013 (2013), pp.1-8.
https://search.emarefa.net/detail/BIM-447189
American Medical Association (AMA)
Vullings, Rik& Mischi, Massimo. Probabilistic Source Separation for Robust Fetal Electrocardiography. Computational and Mathematical Methods in Medicine. 2013. Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-447189
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-447189