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Websign: Hyperlinks from a Physical Location to the Web

Pradhan, Salil; Brignone, Cyril; Cui, Jun-Hong; McReynolds, Alan; Smith, Mark

HPL-2001-140

Keyword(s): augmented reality; pervasive computing; location awareness; ubiquitous computing; CoolTown

Abstract: In the CoolTown research program at Hewlett Packard Laboratories, we are building Ubiquitous Computing systems by embedding and embodying web technologies into physical environments. One of the newer components of this research is Websign. By using a simple form of augmented reality, the system allows users to visualize services related to physical objects of interest. The websign system provides infrastructure not just for detecting websigns but also for creating and deploying them. In this paper we present the concept, an overview of the prototype and the algorithms used in the implementation.

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