Controlling an anamorphic projected image for off-axis viewing

Authors:
Jiyoung Park;Myoung-Hee Kim
Affiliations:
Dept. of Computer Science & Engineering, Ewha Womans University, Seoul, Korea;Dept. of Computer Science & Engineering, Ewha Womans University, Seoul, Korea and Center for Computer Graphics and Virtual Reality, Ewha Womans University, Seoul, Korea
Venue:
UAHCI'07 Proceedings of the 4th international conference on Universal access in human-computer interaction: ambient interaction
Year:
2007

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Abstract

We modify a projected image so as to compensate for changes in the viewer's location. We use the concept of a virtual camera in the viewing space to achieve a transformable display with improved visibility. The 3D space and virtual camera are initialized and then the image is translated, rotated, scaled and projected. The user can modify the position and size of the image freely within the allowable projection area. They can also change its orientation as seen from their viewpoint, which can be off the axis of projection.