Three-dimensional input device

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United States of America Patent

PATENT NO 6268918
SERIAL NO

09332969

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Abstract

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An apparatus and method for detecting a three-dimensional image. The apparatus includes a projector which projects a reference light on an object; an image sensor which senses an image of the object; and a controller for controlling the projector and the image sensor, wherein the image sensor includes an aperture that restricts the passage of entering light; and an aperture controller for setting an aperture value for the aperture when receiving a two-dimensional image input, and setting an aperture value for the aperture when receiving a three-dimensional image input. The aperture value is set based on the intensity of received reference light. A processing unit determines the position of the object based on a relationship between an illumination direction of the reference light at the determined time center Npeak and an entrance direction of the reference light relative to the target pixel. A flicker detector detects a change frequency in light received by the image sensor, and the controller controls the image sensor to sense frames of an image at a frequency which is a multiple of the detected change frequency.

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Patent Owner(s)

Patent OwnerAddress
MINOLTA CO LTDOSAKA CITY OSAKA OF JAPAN OSAKA-SHI OSAKA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ide, Eiichi Itami, JP 53 614
Kamon, Koichi Takatsuki, JP 54 1106
Miyazaki, Makoto Ibaraki, JP 98 1503
Norita, Toshio Osaka, JP 94 2143
Tanabe, Hideki Ibaraki, JP 46 685
Uchino, Hiroshi Otokuni-Gun, JP 39 740

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