Optics: image projectors – Distortion compensation
Reexamination Certificate
2004-07-01
2008-09-02
Sever, Andrew T (Department: 2851)
Optics: image projectors
Distortion compensation
C348S745000
Reexamination Certificate
active
07419268
ABSTRACT:
A projector includes a calibration image information generation section, an image projection section which projects a calibration image, a sensing section which senses a region including the projected calibration image and a projection target through a sensing plane to generate sensing information, a projection target region information generation section which generates projection target region information which indicates coordinates of four corners of the projection target in a sensing region based on the sensing information, a projection area information generation section which generates projection area information which indicates coordinates of four corners of the calibration image in the sensing region based on the sensing information, a correction information generation section which generates image distortion correction information based on the projection target region information and the projection area information, and a distortion correction section which corrects image distortion based on the image distortion correction information.
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Oliff & Berridg,e PLC
Seiko Epson Corporation
Sever Andrew T
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