Augmented reality (AR), still in the development stage, is going to be a great future technology for mankind. It is nothing but the view of real world environment (with some viewing medium) with improved or enhanced elements, generated by computer imagery. In simpler terms, it makes addition of graphic information over the real world view. To superimpose computer generated imagery over the real world environment, this technology largely uses a display device, input device, GPS, MEMS sensors, and a computing processor.
Radio frequency identification (RFID) is a generic term that is used to describe a system that transmits the identity (in the form of a unique serial number) of an object or person wirelessly, using radio waves. RFID technology does not require contact or line of sight for communication.