| Abstract |
This paper
introduces the Everywhere Displays projector, a device that uses a rotating
mirror to steer the light from an LCD/DLP projector onto different surfaces
of an environment. Issues of brightness, oblique projection distortion,
focus, obstruction, and display resolution are examined. Solutions to some
of these problems are described, together with a plan to use a video camera
to allow device-free interaction with the projected images. The ED-projector
is a practical way to create ubiquitous graphical interfaces to access computational
power and networked data. In particular, it is envisioned as an alternative
to the carrying of laptops and to the installation of displays in furniture,
objects, and walls. In addition, the use of ED-projectors to augment reality
without the use of goggles is examined and illustrated with examples.
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Everywhere
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