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{{TOCRIGHT}}==General Information=='''Augmented Reality''' or '''AR''' is the fusion a technology that enhances perception, allowing environments to be enriched in new ways. A basic characteristic of AR is that it merges the real life and the virtual worldworlds. AR The technology aims to enhance our perception of reality through the incorporation of computer generated data and simulations into our senses. The goal of AR devices is to overlay digital imageries and information on top of physical objects and enable the users of the devices to seamlessly interact with the digital content. Through the use of [[computer vision]] and [[object recognition]], digital information about the real world around us can not only be viewed but also manipulated in real timecreating a reality-based interface <ref name=”6”></ref>.

Unlike The goal of AR devices is to supplement the real world with virtual objects by overlaying digital imageries and information on top of physical objects and enabling the users of the devices to seamlessly interact with the digital content. Through the use of [[computer vision]] and [[object recognition]], digital information about the real world around us can not only be viewed but also manipulated in real-time <ref name=”6”></ref>. In general, the technology combines real and virtual objects, aligns real and virtual objects with each other, and runs interactively in real-time. Furthermore, it is not restricted to a specific type of display technology, like an HMD, and can potentially be applied to other senses beside sight <ref name=”6”></ref>. In the [[mixed reality]] spectrum, AR is closer to a real environment. Therefore, unlike Virtual Reality]], Augmented Reality does not replace the real world with a virtual one. AR simply enhances and modifies the real world<ref name=”6”></ref>. In 2007, MIT recognized AR as one of ten emerging technologies, reporting that this type of human-computer interaction is on the verge of major adoption <ref name=”6”></ref>.

Wagner and Schmalstieg presented a precursor to the current smartphones - a handheld AR system that ran autonomously on a “personal digital assistant.” In 19952004, a multiplayer handheld AR game called Invisible Train (Figure 5) was shown at the SIGGRAPH Emerging Technologies show floor <ref name=”3”></ref>).