Augmented reality is also called mixed reality, which belongs to a branch of virtual reality. The augmented reality system uses additional graphics or text information to dynamically enhance the surrounding real-world scenes. In an augmented reality environment, users can see the augmented information generated by the computer while seeing the real surroundings. This enhanced information can be a virtual object coexisting in a real environment with the real environment, or it can be some kind of information about existing real objects. Augmented reality not only displays real-world information, but also displays virtual information at the same time. The two kinds of information complement and overlap each other.

Augmented reality features:

        1. Information integration between the real world and the virtual world;

        2. With real-time interactivity;

        3. Add positioning virtual objects in the three-dimensional space.

Application scope:

        Tourism and exhibition fields; restoration of historical sites and protection of digital cultural heritage; entertainment and game fields, etc.