Abstract
This paper describes the design and implementation of a low-cost projective immersive display (PID), called the Cave-let. A PID immerses the user in a computer-generated three-dimensional environment that responds to the user's movements. Current devices of this nature are very expensive, so that fewer than 100 units have been installed around the world. A low-cost PID will enable a wide range of applications in areas such as telehealth, visualization, education and collaborative systems. To produce a low-cost PID, we identified the components of the design that represented the major costs. These were then redesigned with the aim of reducing cost as much as possible while preserving most of the functionality. The resulting device is suitable for a wide range of applications and is an order of magnitude less expensive than similar devices.
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