TY - GEN
T1 - A P300-speller based on event-related spectral perturbation (ERSP)
AU - Ming, Dong
AU - An, Xingwei
AU - Wan, Baikun
AU - Qi, Hongzhi
AU - Zhang, Zhiguo
AU - Hu, Yong
PY - 2012
Y1 - 2012
N2 - A brain-computer interface (BCI) P300 speller is a novel technique that helps people spell words using the electroencephalography (EEG) without the involvement of muscle activities. However, only time domain ERP features (P300) are used for controlling of the BCI speller. In this paper, we investigated the time-frequency EEG features for the P300-based brain-computer interface speller. A signal preprocessing method integrated ensemble average, principal component analysis, and independent component analysis to remove noise and artifacts in the EEG data. A time-frequency analysis based on wavelet transform was carried out to extract event-related spectral perturbation (ERSP) and inter-trial coherence (ITC) features. Results showed that the proposed signal processing method can effectively extract EEG time-frequency features in the P300 speller, suggesting that ERSP and ITC may be useful for improving the performance of BCI P300 speller.
AB - A brain-computer interface (BCI) P300 speller is a novel technique that helps people spell words using the electroencephalography (EEG) without the involvement of muscle activities. However, only time domain ERP features (P300) are used for controlling of the BCI speller. In this paper, we investigated the time-frequency EEG features for the P300-based brain-computer interface speller. A signal preprocessing method integrated ensemble average, principal component analysis, and independent component analysis to remove noise and artifacts in the EEG data. A time-frequency analysis based on wavelet transform was carried out to extract event-related spectral perturbation (ERSP) and inter-trial coherence (ITC) features. Results showed that the proposed signal processing method can effectively extract EEG time-frequency features in the P300 speller, suggesting that ERSP and ITC may be useful for improving the performance of BCI P300 speller.
KW - Brain-computer interface
KW - P300
KW - event-related potentials
KW - event-related spectral perturbation
KW - inter-trial coherence
UR - https://www.scopus.com/pages/publications/84869450218
U2 - 10.1109/ICSPCC.2012.6335681
DO - 10.1109/ICSPCC.2012.6335681
M3 - 会议稿件
AN - SCOPUS:84869450218
SN - 9781467321938
T3 - 2012 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2012
SP - 63
EP - 66
BT - 2012 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2012
T2 - 2012 2nd IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2012
Y2 - 12 August 2012 through 15 August 2012
ER -