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An online SSVEP-based chatting system
Wang X.; Cao T.; Wang B.; Wan F.; Mak P.U.; Mak P.I.; Vai M.I.; Li C.
Conference Name2011 International Conference on System Science and Engineering
Source PublicationProceedings 2011 International Conference on System Science and Engineering, ICSSE 2011
Conference Date8-10 June 2011
Conference PlaceMacao, China

This paper presents a steady-state visual evoked potential (SSVEP) based online brain-computer interface (BCI) chatting system. In this application, it helps disable subjects to chat by means of their brain signal activities. Stimuli illuminated at different frequencies are displayed on liquid crystal display (LCD) screen. The BCI system implements a chatting interface programmed in Java, and it provides a convenient and high efficient communication platform for paralyzed patients. A novel idle state detection is introduced in this proposed system, and a high transfer rate of 63.54 bits/min and 92% idle state detection accuracy are achieved. 

KeywordBrain Computer Interface (Bci) Canonical Correlation Analysis (Cca) Speller Steady State Visual Evoked Potential (Ssvep)
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Document TypeConference paper
AffiliationUniversidade de Macau
Recommended Citation
GB/T 7714
Wang X.,Cao T.,Wang B.,et al. An online SSVEP-based chatting system[C],2011:536-539.
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