Title :
An online SSVEP-based chatting system
Author :
Wang, Xin ; Cao, Teng ; Wang, Boyu ; Wan, Feng ; Mak, Peng Un ; Mak, Pui In ; Vai, Mang I. ; Li, Chaozheng
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. of Macau, Macau, China
Abstract :
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.
Keywords :
Java; brain-computer interfaces; electronic messaging; liquid crystal displays; visual evoked potentials; Java; brain signal; idle state detection; liquid crystal display screen; online SSVEP-based chatting system; online brain-computer interface; Accuracy; Brain computer interfaces; Correlation; Electroencephalography; Encoding; Monitoring; Visualization; brain computer interface (BCI); canonical correlation analysis (CCA); speller; steady state visual evoked potential (SSVEP);
Conference_Titel :
System Science and Engineering (ICSSE), 2011 International Conference on
Conference_Location :
Macao
Print_ISBN :
978-1-61284-351-3
Electronic_ISBN :
978-1-61284-472-5
DOI :
10.1109/ICSSE.2011.5961961
