The Korea Institute of Science and Technology (KAIST) has been developing augmented reality smart glasses since 2014, and now have a third-generation model called K-Glass 3. Users are able to write messages or search the internet using a virtual keyboard, operated with their bare hands. A stereo-vision camera, with two lenses to collect depth information, is used to detect gestures. A low-power UI and UX processor are also installed. The processor comprises a pre-processing core, seven deep-learning cores and a rendering engine.