Augmented reality

Augmented reality (abbreviated AR) is an environment that includes both virtual reality and real-world elements. For instance, an AR user might wear translucent goggles; through these, he could see the real world, as well as computer-generated images projected on top of that world.

One example of AR is the yellow first-down line seen in television broadcasts of football games. The real-world elements are the football field and players, and the virtual element is the yellow line (which is drawn over the image by computers in real time).