Subspace estimation approach to P300 detection and application to Brain-Computer Interface
Rivet, B.; Souloumiac, A.
Engineering in Medicine and Biology Society, 2007. EMBS 2007. 29th Annual International Conference of the IEEE
Volume , Issue , 22-26 Aug. 2007 Page(s):5071 - 5074
Digital Object Identifier   10.1109/IEMBS.2007.4353480
Summary:Brain-computer interface (BCI) is a system for direct communication between brain and computer. In this work, a new unsupervised algorithm is introduced for P300 subspace estimation: the raw EEG are thus enhanced by projection on the estimated subspace. Moreover a simple scheme to detect the P300 potentials in the human EEG by dimension reduction and linear support vector machine (SVM) is proposed to build a BCI based on the P300 speller. The proposed algorithm is finally tested with dataset from the BCI Competition 2003 and gives results that compare favourably to the state of the art.

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