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Feature enhancement of P300 based brain computer interface through spatially-constrained ICA
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Wang, Suogang and James, Christopher J. (2012) Feature enhancement of P300 based brain computer interface through spatially-constrained ICA. In: 2012 10th IEEE International Conference on Virtual Environments, Human-Computer Interfaces, and Measurement Systems, VECIMS 2012, Tianjin, 2-4 Jul 2012. Published in: Proceedings of IEEE International Conference on Virtual Environments, Human-Computer Interfaces, and Measurement Systems,VECIMS pp. 167-170. ISBN 9781457717574. doi:10.1109/VECIMS.2012.6273189 ISSN 1944-9429.
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Official URL: http://dx.doi.org/10.1109/VECIMS.2012.6273189
Abstract
The P300 word speller is one of the important BCI applications which detects real-time P300 waveforms and translates them into letters (and then words) within a particular BCI paradigm. However due to the poor SNR of EEG, as well as the presence of other artifacts, the identification accuracy is still not high enough for real-world application. This paper presents two slightly different ICA approaches to improve character classification performance based on ICA. When compared with the classification results obtained from the data, the results using these approaches show distinct improvement. Furthermore, the results indicate that it is possible to reduce the number of epochs required to perform stimulus locked averages, whilst still maintaining good performance measures. This has the potential of speeding up the word speller and has further implications for the use on similar ERP based systems. © 2012 IEEE.
Item Type: | Conference Item (Paper) | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||
Journal or Publication Title: | Proceedings of IEEE International Conference on Virtual Environments, Human-Computer Interfaces, and Measurement Systems,VECIMS | ||||
Publisher: | IEEE | ||||
ISBN: | 9781457717574 | ||||
ISSN: | 1944-9429 | ||||
Book Title: | 2012 IEEE International Conference on Virtual Environments Human-Computer Interfaces and Measurement Systems (VECIMS) Proceedings | ||||
Official Date: | 2012 | ||||
Dates: |
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Page Range: | pp. 167-170 | ||||
DOI: | 10.1109/VECIMS.2012.6273189 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Conference Paper Type: | Paper | ||||
Title of Event: | 2012 10th IEEE International Conference on Virtual Environments, Human-Computer Interfaces, and Measurement Systems, VECIMS 2012 | ||||
Type of Event: | Conference | ||||
Location of Event: | Tianjin | ||||
Date(s) of Event: | 2-4 Jul 2012 |
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