Research Article
Automated Analysis of Facial Cues from Videos as a Potential Method for Differentiating Stress and Boredom of Players in Games
Table 5
Percentage of change of features from period
to
in the Tetris game (
).
| | Feature (notation) | Mean | Min. | Max. |
| | Mouth outer () | −1.5 | −27.8 | 39.0 | | Mouth corner () | −2.1 | −26.5 | 26.9 |
| | Eye area () | −2.6 | −19.0 | 26.1 | | Eyebrow activity () | −3.3 | −16.2 | 21.1 |
| | Face area () | −1.4 | −24.3 | 26.7 | | Face motion () | −11.3 | −85.8 | 114.3 | | Facial COM () | −2.7 | −24.7 | 21.8 |
|
|
