Image processing system, projector, program, information...

Details Image processing system, projector, program, information... Image processing system, projector, program, information...

2007-06-19

2007-06-19

Bruce, David (Department: 2112)

Image analysis

Image enhancement or restoration

Artifact removal or suppression

C382S260000, C382S268000, C382S274000, C382S289000, C348S744000, C353S069000, C353S121000

Reexamination Certificate

active

11137350

ABSTRACT:
A projector includes a projection section which projects an all-white image and an all-black image onto a screen, a sensor which generates first sensing information by sensing the all-white image and generates second sensing information by sensing the all-black image, a differential image generation section which generates a differential image based on the first and second sensing information, an external light effect removal section, and a projection target area detection section which generates projection target area information on the position of a projection target area corresponding to the screen in the sensing area of the sensor based on the differential image from which the external light effect is removed.

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patent: 6939011 (2005-09-01), Kobayashi
patent: 2001/0010514 (2001-08-01), Ishino
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patent: 2003/0147053 (2003-08-01), Matsuda et al.
patent: 2005/0041967 (2005-02-01), King et al.
patent: 2007/0003275 (2007-01-01), Silverbrook
patent: 1 349 387 (2003-10-01), None
patent: 1 363 462 (2003-11-01), None
patent: A-2001-268326 (2001-09-01), None
patent: A-2004-228948 (2004-08-01), None

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