According to New Scientist:
"Lecturers and teachers could soon have an automated ally in the classroom. An intelligent tutoring system developed at the University of California, San Diego, can analyse facial cues, expressions and head movements to gauge how difficult students are finding a lecture. The system gets it right less than half the time at the moment, but could eventually help create video lectures that run at a student's own pace."
see Computer Scientist Turns his Face into a Remote Control
Measuring the Perceived Difficulty of a Lecture Using Automatic Facial Expression Recognition (short paper), accepted to Intelligent Tutoring Systems 2008. Author list: Jacob Whitehill, Marian Bartlett, and Javier Movellan from the Machine Perception Laboratory
Automatic Facial Expression Recognition for Intelligent Tutoring Systems, accepted to CVPR 2008 Workshop on Human Communicative Behavior Analysis. Author list: Jacob Whitehill, Marian Bartlett, and Javier Movellan from the Machine Perception Laboratory, University of California, San Diego.
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