The World through the Computer:
Computer Augmented Interaction with Real World Environments

Jun Rekimoto and Katashi Nagao,
Sony Computer Science Laboratory Inc.

E-mail: rekimoto@csl.sony.co.jp

Current user interface techniques such as WIMP or the desk-top metaphor do not support real world tasks, because the focus of these user interfaces is only on human-computer interactions, not on human-real world interactions. In this paper, we propose a method of building computer augmented environments using a situation-aware portable device. This device, called NaviCam, has the ability to recognize the user's situation by detecting color-code IDs in real world environments. It displays situation sensitive information by superimposing messages on its video see-through screen. Combination of ID-awareness and portable video-see-through display solves several problems with current ubiquitous computers systems and augmented reality systems.

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