Realityflythrough is a telepresence/tele-reality system that works in the dynamic, uncalibrated environments typically associated with ubiquitous computing. By opportunistically harnessing networked mobile video cameras, it allows a user to remotely and immersively explore a physical space. This paper describes the architecture of the system, motivated by the real-time and dynamic requirements imposed by one application domain: SWAT team command and control support. RealityFlythrough is analogous to an operating system in that it provides abstractions to the user that hide inherent limitations in the underlying system. Just as an operating system provides the illusion of infinite processors and infinite memory, RealityFlythrough provides the illusion of complete live camera coverage in a physical environment.
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