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Neural Computing & Applications

, Volume 15, Issue 2, pp 105–116 | Cite as

Application of independent component analysis in removing artefacts from the electrocardiogram

  • Taigang He
  • Gari Clifford
  • Lionel Tarassenko
Original Article

Abstract

Routinely recorded electrocardiograms (ECGs) are often corrupted by different types of artefacts and many efforts have been made to enhance their quality by reducing the noise or artefacts. This paper addresses the problem of removing noise and artefacts from ECGs using independent component analysis (ICA). An ICA algorithm is tested on three-channel ECG recordings taken from human subjects, mostly in the coronary care unit. Results are presented that show that ICA can detect and remove a variety of noise and artefact sources in these ECGs. One difficulty with the application of ICA is the determination of the order of the independent components. A new technique based on simple statistical parameters is proposed to solve this problem in this application. The developed technique is successfully applied to the ECG data and offers potential for online processing of ECG using ICA.

Keywords

Independent component analysis Artefacts Noise removal ECG Permutation 

Notes

Acknowledgements

Dr. Taigang He was supported by an EPSRC post-doctoral Research Assistantship (GR/M05614) and Gari Clifford was funded by Oxford BioSignals Ltd.

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Copyright information

© Springer-Verlag London Limited 2005

Authors and Affiliations

  1. 1.Signal Processing and Neural Networks Research Group, Department of Engineering ScienceUniversity of OxfordOxfordUK

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