Optics: image projectors – Distortion compensation
Reexamination Certificate
2009-03-05
2010-02-16
Dowling, William C (Department: 2878)
Optics: image projectors
Distortion compensation
C353S121000
Reexamination Certificate
active
07661827
ABSTRACT:
A projector is configured of a difference image generation section that generates a difference image between an all-white first calibration image and a second calibration image which includes an image having features at the center and periphery thereof, a center reference position detection section that detects a reference position of a center block area in the difference image, a peripheral reference position detection section that detects a reference position of a peripheral block area, and a projection area information generation section that generates projection area information indicating a position of a projection area, based on those reference positions.
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Dowling William C
Oliff & Berridg,e PLC
Seiko Epson Corporation
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