Research Article
Effect of EOG Signal Filtering on the Removal of Ocular Artifacts and EEG-Based Brain-Computer Interface: A Comprehensive Study
Table 4
Mutual information scores (mean of all EEG channels and mean of all simulated subjects).
| Low-pass EOG filter (Hz) | Simple | Adaptive filtering | Hybrid methods | Regression (mean ± SD) | LMS (mean ± SD) | RLS (mean ± SD) | REGICA (mean ± SD) | AIR (mean ± SD) |
| 4 | 1.49 | 0.24 | 1.49 | 0.17 | 1.60 | 0.20 | 1.68 | 0.17 | 1.68 | 0.17 | 5 | 1.52 | 0.26 | 1.53 | 0.18 | 1.65 | 0.22 | 1.74 | 0.19 | 1.75 | 0.18 | 6 | 1.54 | 0.28 | 1.55 | 0.19 | 1.68 | 0.23 | 1.78 | 0.20 | 1.78 | 0.19 | 7 | 1.54 | 0.28 | 1.56 | 0.19 | 1.69 | 0.24 | 1.79 | 0.21 | 1.80 | 0.20 | 8 | 1.54 | 0.28 | 1.55 | 0.20 | 1.69 | 0.24 | 1.79 | 0.21 | 1.80 | 0.20 | 9 | 1.53 | 0.27 | 1.54 | 0.20 | 1.68 | 0.23 | 1.79 | 0.21 | 1.79 | 0.20 | 10 | 1.52 | 0.27 | 1.53 | 0.19 | 1.67 | 0.23 | 1.78 | 0.20 | 1.78 | 0.19 | 12 | 1.52 | 0.26 | 1.52 | 0.19 | 1.66 | 0.22 | 1.76 | 0.20 | 1.77 | 0.19 | 15 | 1.51 | 0.26 | 1.51 | 0.19 | 1.64 | 0.22 | 1.75 | 0.19 | 1.76 | 0.18 | 20 | 1.51 | 0.26 | 1.50 | 0.19 | 1.64 | 0.22 | 1.74 | 0.19 | 1.75 | 0.18 | 25 | 1.50 | 0.26 | 1.50 | 0.18 | 1.63 | 0.22 | 1.74 | 0.19 | 1.75 | 0.18 | 35 | 1.50 | 0.26 | 1.50 | 0.18 | 1.63 | 0.22 | 1.73 | 0.19 | 1.74 | 0.18 | Unfiltered | 1.49 | 0.25 | 1.49 | 0.18 | 1.62 | 0.21 | 1.73 | 0.18 | 1.73 | 0.18 |
|
|