Robot sensor reads facial expressions to determine emotions

Sungkyunkwan University‘s Nae-Eung Lee has created a stretchable, transparent sensor that helps robots read facial expressions.  It senses smiling, frowning, brow-furrowing and eye-rolling.  The robot then detects movements, including slight changes in gaze, to determine whether people are laughing or crying, and where they are looking.

The ultra-sensitive, wearable sensor layers a carbon nanotube film on two types of electrically-conductive elastomers.

Lee believes that in addition to robotics, the sensors could be used to monitor heartbeats, breathing, or dysphagia. 

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