Improved Classification Methods for Brain Computer Interface System

Автор: YI Fang, LI Hao, JIN Xiaojie

Журнал: International Journal of Computer Network and Information Security(IJCNIS) @ijcnis

Статья в выпуске: 2 vol.4, 2012 года.

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Brain computer interface (BCI) aims at providing a new communication way without brain’s normal output through nerve and muscle. The electroencephalography (EEG) has been widely used for BCI system because it is a non-invasive approach. For the EEG signals of left and right hand motor imagery, the event-related desynchronization (ERD) and event-related synchronization(ERS) are used as classification features in this paper. The raw data are transformed by nonlinear methods and classified by Fisher classifier. Compared with the linear methods, the classification accuracy can get an obvious increase to 86.25%. Two different nonlinear transform were arised and one of them is under the consideration of the relativity of two channels of EEG signals. With these nonlinear transform, the performance are also stable with the balance of two misclassifications.

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Brain computer interface, signal processing, motor imagery, classifier, nonlinear transform

Короткий адрес: https://sciup.org/15011055

IDR: 15011055

Список литературы Improved Classification Methods for Brain Computer Interface System

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