Optics: image projectors – Distortion compensation
Reexamination Certificate
2006-02-21
2006-02-21
Koval, Melissa Jan (Department: 2851)
Optics: image projectors
Distortion compensation
C353S030000, C353S121000, C348S745000, C348S746000
Reexamination Certificate
active
07001023
ABSTRACT:
A system determines correspondence between locations on a display surface and pixels in an output image of a projector. The display surface can have an arbitrary shape and pose. Locations of known coordinates are identified on the display surface. Each location is optically coupled to a photo sensor by an optical fiber installed in a throughhole in the surface. Known calibration patterns are projected, while sensing directly an intensity of light at each location for each calibration pattern. The intensities are used to determine correspondences between the locations and pixels in an output image of the projector so that projected images can be warped to conform to the display surface.
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Patent abstracts of JP. 7 162790, Mitsubishi Electric Corp., Jun. 23, 1995.
Dietz Paul H.
Lee Johnny Chung
Maynes-Aminzade Daniel
Raskar Ramesh
Brinkman Dirk
Curtin Andrew J.
Koval Melissa Jan
Mitsubishi Electric Research Laboratories Inc.
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