Oblique projector rendering on planar surfaces for a tracked user

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Abstract
Projectors are typically mounted so that their optical axis is perpendicular to the planar display surface. Such con gurations are also used in immersive environments to render perspectively correct imagery for a head-tracked moving user. They include CAVE, PowerWall (m n array of projectors) or ImmersiveDesk (back-lit and tilted desktop workbenches). By design, typical display systems try to maintain the image plane parallel to the plane of the display surface. However, this leads to the need of constant electro-mechanical alignment and calibration of display systems.

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