The augmented reality technology combines virtual materials with the real world, displays the mixed information in the surrounding physical world via display devices, and provides a natural human-computer interaction. Recently, the augmented reality technology sees a rapid developement, and is widely used in thefields of games, entertainment, exhibitions, education and so on. This paper reviews the key technologies of the augmented reality system, its application in practice, as well as its future development.

augmented reality  /  tracking and registration  /  display technology  /  human-computer interaction