Besides functional tests, extensive experimentation of Facial expression Recognition in CALLAS is done in edutainment application for Proof-of-Concepts:
- the Musickiosk : the component was used used for Ekmanian values,enumerated and combined with other input modalities into P-A-D values for emotion estimation. This resulted in guiding the music according to facial expressions: as facial expressions are more negative, music gets more passive, and viceversa if more positive.
- the Interactive Opera : the component was used for interfering with the storyâ€™s plot. Depending on facial expressions of multiple people, each one standing for a different character, the plot is accordingly designed.
Additional reference to the component usage is made in the following CALLAS papers and articles:
- A non-intrusive method for user focus of attention estimation in front of a computer monitor: Abstract