Two student projects from the Control Robotics and Machine Learning Lab at Israel Technion’s faculty of Electrical Engineering. First, a tiny drone follows someone by tracking his face. Secondly, a Kinect device for the blind, that directs a blind person by telling him or her where to walk.
http://www.youtube.com/watch?v=e1XCP6zugPI
http://www.youtube.com/watch?v=MfWL5YWo7Wg