In the talk show by Pattie Maes from TED, the sixth sense prototype consists of a pocket projector, a mirror allowing us to interact with the information through natural hand gestures. The hardware components are attached together forming a mobile like wearable device. The projector and camera are attached to the mobile computing device in the user’s pocket. Walls and physical objects around our environment are used as interface when the projector projects visual information. Using computer-vision based technique the camera recognizes and tracks hand gestures and other physical objects.