Mixed Reality: A Known Unknown

Abstract

Mixed reality (MR) is an area of computer research dealing with the combination of real-world and computer-generated data (virtual reality), where computer-generated graphical objects are visually mixed into the real environment and vice versa in real time. This chapter contains an introduction to this modern technology. Mixed reality combines real and virtual and is interactive, real-time processed, and registered in three dimensions. We can create mixed reality by using at least one of the following technologies: augmented reality and augmented virtuality. The mixed reality system can be considered as the ultimate immersive system. MR systems are usually constructed as optical see-through systems (usually by using transparent displays) or video see-through. Implementation of MR systems is as marker systems (real scene will be added with special markers. These will be recognized during runtime and replaced with virtual objects) or (semi) markerless systems (processing and inserting of virtual objects is without exact markers. Additional information is usually needed, for example, image and face recognition, GPS coordinates, etc.). The chapter contains also a description of mixed reality as an advanced computer user interface and the newest collaborative mixed reality.

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