Rana el Kaliouby and Rosalind Picard have created special glasses that help the wearer interpret emotional cues. The glasses use a tiny camera and software that analyses facial expressions. El Kaliouby began to develop the glasses as an aid for autistic people, who often find it hard to pick up on other people's emotions. She and fellow Cambridge student Simon Baron-Cohen hired actors to mime expressions, and volunteers to describe their meaning, using the most popular responses.
The glasses' camera tracks 24 "feature points" on your conversation partner's face, and software developed by Picard analyses their expressions.
According to Picard, these glasses could become "augmented-reality glasses, which would overlay computer graphics onto the scene in front of the wearer."
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