Emission Modelling for Supervised ECG Segmentation using Finite Differences: Proceedings of the 4th European Conference of the International Federation for Medical and Biological Engineering - MBEC 2008

Benoît Frénay, Gaël de Lannoy, Michel Verleysen

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Résumé

The segmentation of ECG signals into P waves, QRS complexes, T waves and baselines is an important practical problem for physicians diagnosing cardiac diseases. The duration of the signal and the number of beats to segment are often too large for a manual annotation, so that automatic segmentation is a challenging and useful tool. State-of-the-art algorithms use hidden Markov models with wavelet transform encoding and represent the ECG in multidimensional spaces using Gaussian mixtures models. The main problem of this approach is its computational cost due to the number of free parameters, the choice of the wavelet transform parameters and the high failure rate of the EM algorithm. In this work, we propose an alternative emission encoding for hidden Markov models using both the ECG signal and its derivative in order to better model the dynamics of the signal in a lower dimensional space. We show that this method achieves similar performances with much less model parameters and is less subject to failures. © 2009 Springer Berlin Heidelberg.

langue originaleAnglais
titreProceedings of the 4th European Conference of the International Federation for Medical and Biological Engineering - MBEC 2008
rédacteurs en chefJ. Vander Sloten, M. Nyssen, P. Verdonck, J. Haueisen
EditeurSpringer Verlag
Pages1212-1216
Nombre de pages5
Volume22
ISBN (imprimé)9783540892076
Les DOIs
Etat de la publicationPublié - 2008
Modification externeOui
Evénement4th European Conference of the International Federation for Medical and Biological Engineering, ECIFMBE 2008 - Antwerp, Belgique
Durée: 23 nov. 200827 nov. 2008

Une conférence

Une conférence4th European Conference of the International Federation for Medical and Biological Engineering, ECIFMBE 2008
PaysBelgique
La villeAntwerp
période23/11/0827/11/08

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    Frénay, B., de Lannoy, G., & Verleysen, M. (2008). Emission Modelling for Supervised ECG Segmentation using Finite Differences: Proceedings of the 4th European Conference of the International Federation for Medical and Biological Engineering - MBEC 2008. Dans J. Vander Sloten, M. Nyssen, P. Verdonck, & J. Haueisen (eds.), Proceedings of the 4th European Conference of the International Federation for Medical and Biological Engineering - MBEC 2008 (Vol 22, p. 1212-1216). Springer Verlag. https://doi.org/10.1007/978-3-540-89208-3_290