Table 4 List of the considered motion artifacts and corresponding action unit (AU).
Class | Muscle Group | One-Shot | Artifact Name | Action Units |
|---|---|---|---|---|
Still | n/a | n/a | Still | n/a |
Head/Face | Head | ✓ | Nod | AU 53, 54 |
✓ | Shake | AU 51, 52 | ||
✓ | Tilt | AU 55, 56 | ||
Eyes | ✓ | Vertical Eyes Movements | AU 63, 64 | |
✓ | Horizontal Eyes Movements | AU 61, 62 | ||
✓ | Brow Raiser | AU 1, 2 | ||
✓ | Brow Lowerer | AU 4 | ||
✓ | Right Eye Wink | AU 46 | ||
✓ | Left Eye Wink | AU 46 | ||
Mouth | ✓ | Lip Puller | AU 12 | |
✓ | Chin Raiser | AU 17 | ||
✓ | Mouth Stretch | AU 27 | ||
✗ | Chewing | AU 81 | ||
✗ | Speaking | AU 50 | ||
Full-Body | n/a | ✗ | Walking | n/a |
✗ | Running | n/a |
