Augmented reality technology not only shows the information of the real world, but also shows the information of the virtual world. The two kinds of information complement each other and overlap each other. In visual augmented reality, users can synthesize the real world and cg animation through the helmet-mounted display and see the real world around them.

Augmented reality technology includes multimedia, 3D modeling, real-time video display and control, multi-sensor fusion, real-time tracking and registration, scene fusion and other new technologies and means. Augmented reality provides information that is different from what humans usually perceive.

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AR technology is not only widely used in cutting-edge weapons, aircraft research and development, data model visualization, virtual training, entertainment art and other applications similar to VR technology, but also has more obvious advantages than VR technology in medical research and anatomical training, precision instrument manufacturing and maintenance, military aircraft navigation, engineering design, remote robot control and so on.