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Wavelet analysis of EEG using LABVIEW

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The Electroencephalogram (EEG) is a biological signal that represents the electrical activity of the brain and is the main resource of information for studying neurological disorders. Corruption of EEG signal is caused by occurrence of various artifacts like line interference, electroculogram, electrocardiogram and muscle activity [3]. These artifacts resources increase the difficulty in analyzing the EEG signal and obtaining clinical information. So it is necessary to design a procedure to decrease such artifacts in EEG. The blanking of the EEG signal due to blinking of the patient’s eye is the problem encountered in the removal of artifact[14]. So elimination of ocular artifact called Electroculogram (EOG) from Electroencephalogram (EEG) signal using wavelet method on Laboratory Virtual Instrumentation Engineering Workbench (Lab VIEW) platform is the fundamental basis of the system. An algorithm using wavelet analysis is implemented to eliminate eye blink artifact without loss of important part of original EEG signal [1,8,11].
Keywords: Ocular artifact, Haar wavelet, EEG, Discrete Wavelet Transform, EOG.


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