An Architecture for Ubiquitous and Collaborative 3D Position Sensing for Ubiquitous 3D Drawing

Many methods for 3D position sensing using magnetic sensors, the ultrasonic sensors, special cameras, and so on have been proposed. Most of them, however, require specialized equipment that must be installed in the environment in question. This drawback prevents prototype 3D systems from reaching practical use in real fields. gUbiquitous 3D drawingh (namely, drawing a sketch in any 3D space in front of a designer), which appears as a common feature in a conventional 3D system, is investigated, and a new method for 3D position detection, called gUbiC3D (ubiquitous and collaborative 3D position sensing) architecture, is proposed. UbiC3D uses only a single camera with sensors and generates a global 3D map of visual feature points through users´ collaboration. A preliminary experiment shows that the UbiC3D architecture is feasible.