Augmented reality technology is a new technology that integrates real world information and virtual world information "seamlessly", and it is difficult to experience physical information (visual information, sound, taste, touch, etc.) in a certain time and space of the real world through a computerScience and technology，模拟After simulation and superposition, virtual information is applied to the real world and perceived by human senses, so as to achieve sensory experience beyond reality。Real environments and virtual objects are superimposed on the same picture or space in real time。
Augmented reality doesn't just show the real world信息And the virtual information is displayed at the same time, and the two kinds of information complement and superimpose each other。In visual augmented reality, users use the helmet display to combine the real world with computer graphics, so that they can see the real world around it。
Augmented reality technology includesmultimedia3D modeling, real-time video display and控制Multi-sensor fusion, real-time tracking and registration, scene fusion and other new technologies and new means。Augmented reality provides information that is different from what humans can perceive under normal circumstances。
The features of augmented reality technology are:
1. Combination of virtual and real
It can extend the display screen to the real environment, so that the computer window and icon are superimposed on the real object, by the eye gaze or gesture to operate;Make 3D objects in the user's panoramic field of view according to the current task or需要Changing its shape and appearance interactively;For reality目标By superimposing virtual scenes to create an enhanced effect similar to X-ray perspective;Insert map information directly into the real landscape to guide the driver's actions;Look at the outdoor scene through a virtual window, making the walls seem transparent。
2. Real-time interaction
It extends interaction from precise location to the entire environment, from simple person-to-screen communication to integrating oneself into the surrounding space and objects。运用Information systemIt is no longer a conscious and intentional independent action, but a natural integration with people's current activities。Interactive systems no longer have specific locations, but extend to the entire environment。The third is three-dimensional registration, which is adjusted according to the user's movement in three-dimensional spacecomputerThe resulting enhanced information。
3. Add positioning virtual objects in three-dimensional scale space。