Research Article
Automated Analysis of Facial Cues from Videos as a Potential Method for Differentiating Stress and Boredom of Players in Games
Table 2
Mean of differences (
SD) of features between periods
and
(
). Units expressed in normalized pixels.
| Feature (notation) | |
| Mouth outer () | −20.59 57.36 | Mouth corner () | −3.90 10.16 |
| Eye area () | −0.019 0.064 | Eyebrow activity () | −15.59 49.71 |
| Face area () | −2.60 7.90 | Face motion () | −44.97 326.74 | Facial COM () | −0.029 0.113 |
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