A Non-Orthogonal SVD-based Decomposition for Phase Invariant Error-Related Potential Estimation

Ronald Phlypo 1, * Nisrine Jrad 1 Sandra Rousseau 1 Marco Congedo 1
* Auteur correspondant
1 GIPSA-VIBS - VIBS
GIPSA-DIS - Département Images et Signal
Abstract : The estimation of the Error Related Potential from a set of trials is a challenging problem. Indeed, the Error Related Potential is of low amplitude compared to the ongoing electroencephalographic activity. In addition, simple summing over the different trials is prone to errors, since the waveform does not appear at an exact latency with respect to the trigger. In this work, we propose a method to cope with the discrepancy of these latencies of the Error Related Potential waveform and offer a framework in which the estimation of the Error Related Potential waveform reduces to a simple Singular Value Decomposition of an analytic waveform representation of the observed signal. The followed approach is promising, since we are able to explain a higher portion of the variance of the observed signal with fewer components in the expansion.
Type de document :
Communication dans un congrès
Monzon, Jorge E. and Patton, James L. 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC '11), Aug 2011, Boston, Massachusetts, United States. IEEE, pp.6963-6966, 2011, Proceedings
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Contributeur : Ronald Phlypo <>
Soumis le : mardi 22 novembre 2011 - 17:24:33
Dernière modification le : lundi 9 avril 2018 - 12:22:41
Document(s) archivé(s) le : jeudi 23 février 2012 - 02:31:05

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  • HAL Id : hal-00641447, version 2

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Ronald Phlypo, Nisrine Jrad, Sandra Rousseau, Marco Congedo. A Non-Orthogonal SVD-based Decomposition for Phase Invariant Error-Related Potential Estimation. Monzon, Jorge E. and Patton, James L. 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC '11), Aug 2011, Boston, Massachusetts, United States. IEEE, pp.6963-6966, 2011, Proceedings. 〈hal-00641447v2〉

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