Title :
Self-paced BCI using multiple SWT-based classifiers
Author :
Faradji, Farhad ; Ward, Rabab K. ; Birch, Gary E.
Author_Institution :
Electrical and Computer Engineering Department, University of British Columbia, Vancouver, V6T 1Z4. Canada
Abstract :
The presence of false activations inhibits the use of existing self-paced BCIs in real life applications. We present a new design method for a self-paced BCI that yielded 0% false activations using the data of two subjects. This system obtains templates/shapes of the movement related finger flexion patterns. To obtain the templates, the intentional control data are decomposed into 5 levels using the stationary wavelet transform. Then, ensemble averaging is done. These templates are used to train 5 radial basis function neural networks. This is followed by a majority voting classifier.
Keywords :
Communication system control; Design methodology; Fingers; Frequency; Materials requirements planning; Neural networks; Radial basis function networks; Rhythm; Shape; Wavelet transforms; Algorithms; Electroencephalography; Evoked Potentials, Visual; Humans; Neural Networks (Computer); Signal Processing, Computer-Assisted; User-Computer Interface;
Conference_Titel :
Engineering in Medicine and Biology Society, 2008. EMBS 2008. 30th Annual International Conference of the IEEE
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4244-1814-5
Electronic_ISBN :
1557-170X
DOI :
10.1109/IEMBS.2008.4649606