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Content Provider | IEEE Xplore Digital Library |
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Author | Hsiang-Chih Chang Hua-Ting Deng Po-Lei Lee Chi-Hsun Wu Kuo-Kai Shyu |
Copyright Year | 2010 |
Description | Author affiliation: Department of Electrical Engineering, National Central University, Taiwan., 300, JhongDa Rd., JhongLi City, Taoyuan County, Taiwan (Hsiang-Chih Chang; Hua-Ting Deng; Po-Lei Lee; Chi-Hsun Wu; Kuo-Kai Shyu) |
Abstract | In this study, an steady-state visual evoked potential (SSVEP) — based brain computer interface (BCI) has been developed to wirelessly handle a remote-controlled car. Three flickers, flickering at distinct frequencies (13 Hz, 14 Hz, and 15 Hz), were displayed on a liquid crystal display (LCD) monitor to induce user's SSVEPs, which were used control three movement functions (forward, leftward, rightward) of the remote-control car. Users gazed at one chosen flicker at one time to generate particular SSVEP, and the SSVEP was then recognized to activate a desired movement function of the remote-control car. With the provision of front scenes, captured from a CCD camera mounted on the remote-control car, subjects were able to generate desired SSVEPs to guide the remote-control car to a designated place. In this study, all participants were requested to guide the remote-control car to pass an S-shaped path. The EEG measurements utilized only one bipolar channel placed at Oz position (Oz(+)), with reference electrode at the right mastoid (Oz(-)). The acquired EEG signals were segmented into one-second epochs. Gazed-targets were then detected by a matched filter detector (MFD), which comprises a MF demodulator and an amplitude detector. The proposed system has been tested in two volunteers, and the mean accuracy and mean information transfer rate (ITR) were 92.69% and 49.79 bits/min, respectively. |
Starting Page | 1884 |
Ending Page | 1887 |
File Size | 725991 |
Page Count | 4 |
File Format | |
ISBN | 9781424476428 |
e-ISBN | 9784907764364 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2010-08-18 |
Publisher Place | Taiwan |
Access Restriction | Subscribed |
Rights Holder | SICE |
Subject Keyword | Matched filters Detectors Electroencephalography Band pass filters Visualization Demodulation Brain computer interfaces Steady-state visual evoked potential (SSVEP) Brain computer interface (BCI) Matched filter detector (MFD) |
Content Type | Text |
Resource Type | Article |
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