Augmented reality (AR) is a field of computer research which deals with the combination of real-world and computer-generated data (virtual reality), where computer graphics objects are blended into real footage in real time.

At present, most AR research is concerned with the use of live video imagery which is digitally processed and "augmented" by the addition of computer-generated graphics. Advanced research includes the use of motion-tracking data, fiducial markers recognition using machine vision, and the construction of controlled environments containing any number of sensors and actuators.

Augmented Reality (AR)  Wikipedia

Posters with depth effect -- 3D advertizing   PhysOrg - May 4, 2010

  Augmented reality puts the squeeze into virtual hugs   PhysOrg - April 5, 2010

  Augmented reality windshield from GM to show drivers potential hazards   PhysOrg - March 20, 2010

  Augmented Reality App Identifies Strangers With Camera   Wired - February 24, 2010

Augmented reality systems appearing in Japanese shopping malls   PhysOrg - December 9, 2009

  Augmented Reality: Metaio touch interaction   Wired - September 16, 2009

Augmented Reality Reveals History to Tourists   Live Science - August 16, 2009

Augmented Reality Under Water   Science Daily - March 24, 2009

A diver's mask with a special display lets the diver see his or her real submarine surroundings overlaid with computer-generated virtual scenes.