Abstract
The collaboration between a public large display and personal Smart Mobile Devices (SMDs) is a promising technical field for the visual communication and interaction. This paper focuses on the combination of an image projector as the large display, and smartphones and tablet PCs as the SMDs. The pioneering work in this field used Personal Data Assistants (PDAs) and electromagnetic sensors for detecting their positions roughly [Rekimoto at el.2000]. It is clear that the latest SMDs are much more powerful than the PDAs at that time. However, technical challenges still remain in the precise detection of the relative positions and inclinations of SMDs placed on a large display. For this purpose, this paper introduces the Pixel-level Visible Light Communication (PVLC) projector [Kimura et al. 2007] as the large display and proposes a simple method for extending the communication function of iPod touch and iPad as the SMDs. We call the system iPvlc.
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