A Removal of Eye Movement and Blink Artifacts from EEG Data Using Morphological Component Analysis

Figure 6

A comparison between cc of decomposed morphological component with iEEG signal and artificial EOG with hard and soft thresholds. The mean value and standard deviation were calculated from all 100 decomposed datasets by explicit dictionaries. (a) Second morphological component was decomposed by DST, DCT, and LDCT with hard and (b) soft threshold, respectively. (c) First morphological component was decomposed by UDWT with a hard threshold and (d) soft threshold, respectively. trials of iEEG and artificial EOG were used.

(a) cc between iEEG and 2nd comp. (hard)

(b) cc between iEEG and 2nd comp. (soft)

(c) cc between EOG and UDWT (hard)

(d) cc between EOG and UDWT (soft)