Title :
Real time eye blink noise removal from EEG signals using morphological component analysis
Author :
Matiko, Joseph W. ; Beeby, Steve ; Tudor, John
Author_Institution :
Fac. of Phys. Sci. & Eng., Univ. of Southampton, Southampton, UK
Abstract :
This paper presents a method of removing the noise caused by eye blinks from an electroencephalogram (EEG) signal in real time based on morphological component analysis (MCA). This method sparsely represents both the eye blink and the EEG signal basis matrices using a Short Time Fourier Transform (STFT). This approach has two main advantages: 1) fast computation of the estimation of the signal coefficients using the basis pursuit algorithm 2) less memory requirement. The obtained result shows that the correlation coefficient between the raw EEG and the cleaned EEG is between 0.72 and 0.94 which implies that it is possible to remove eye blink noise from the EEG signal in real time without affecting an underlying brain signal.
Keywords :
Fourier transforms; electroencephalography; medical signal processing; neurophysiology; EEG signal basis matrices; MCA; basis pursuit algorithm; brain signal; correlation coefficient; electroencephalogram signal; less memory requirement; morphological component analysis; real time eye blink noise removal; short time Fourier transform; signal coefficients; Correlation; Electrodes; Electroencephalography; Headphones; Memory management; Real-time systems; Signal processing;
Conference_Titel :
Engineering in Medicine and Biology Society (EMBC), 2013 35th Annual International Conference of the IEEE
Conference_Location :
Osaka
DOI :
10.1109/EMBC.2013.6609425