BiSigma

 

Facial expressions

The facial expression recognition is aimed to the automatic detection of micro-expressions, so facial expressions of short duration, from which emotions such as anger, fear, sadness, joy, surprise and contempt can be derived. The detection takes place either visually via a camera, which films the subjects during the experiment, or electrically by using electrodes on the face muscles. The latter brings more meaningful results, but however it requires a considerably higher effort.

Significance for the emotional intensity: medium

Informative value on the kind of emotion: high

Informative value on the mental workload: low

Effort: simple but with less significance if video recordings are used, higher significance by using electrical activity of the facial muscles

http://bisigma.de/facial-expressions