Real-Time EEG Signal Enhancement Using Canonical Correlation Analysis and Gaussian Mixture Clustering

Figure 7

Temporal waveform and power spectrum activities of Oz-EEG channel from a representative subject. (a and c) SSVEP task. (b and d) VEP task. (a and b) Chewing. (c and d) Head rotation. Left and right-hand images in subfigures show EEG waveforms and corresponding log power activity, respectively. Top and middle 2D images show EEG results before and after artifact removal, respectively, and bottom images present averaged results. Each horizontal line in 2D images represents a single trial. The time zero on the x-axis represents the time of onset of the visual stimulus. Blue and red lines in bottom images show averaged results obtained before and after artifact removal, respectively. Note: AR indicates artifact removal.

(a)

(b)

(c)

(d)