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.