Table 5 Classification rates using a SVM and a DBSCAN classifiers on the different feature set
Features sets | Number of features | SVM | DBSCAN | |
|---|---|---|---|---|
ACC (%) | Std | ACC (%) | ||
All features | 22 | 85.53 | 1.02 | 79.23 |
Facial expression features | 16 | 83.14 | 1.16 | 78.5 |
Eye-based features | 12 | 82.65 | 1.1 | 78 |
Head-based features | 4 | 81.30 | 0.33 | 75.63 |
Driving behaviors features | 5 | 84.14 | 0.66 | 78 |
Retained features | 13 | 89.13 | 1.01 | 80.91 |