Table 2.
Overview of the action units considered in our study
| AU | Name | Incidence |
|---|---|---|
| 1 | Inner Brow Raiser | 0.292 |
| 2 | Outer Brow Raiser | 0.196 |
| 4 | Brow Lowerer | 0.322 |
| 5 | Upper Lip Raiser | 0.172 |
| 6 | Cheek Raiser | 0.206 |
| 7 | Lip Tightener | 0.201 |
| 9 | Nose Wrinkler | 0.125 |
| 11 | Nasolabial Deepener | 0.056 |
| 12 | Lip Corner Puller | 0.187 |
| 15 | Lip Corner Depressor | 0.150 |
| 17 | Lower Lip Depressor | 0.041 |
| 20 | Lip Stretcher | 0.130 |
| 23 | Lip Tightener | 0.100 |
| 24 | Lip Pressor | 0.096 |
| 25 | Lips Part | 0.484 |
| 26 | Jaw Drop | 0.164 |
| 27 | Mouth Stretch | 0.137 |
The columns on the right show the incidence of the action units in the Cohn--Kanade data set