The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 26, 2008
Filed:
Sep. 20, 2004
Masanobu Kobayashi, Shiojiri, JP;
Masanobu Kobayashi, Shiojiri, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An image processing system including: a distortion correction section which corrects an image signal so as to adjust image distortion; an image projection section which projects an image based on the image signal; a sensing section which senses the projected image along an optical axis which does not coincide with an optical axis of the image projection section in order to generate sensing information; an image analysis section which generates edge point information and brightness index value distribution information, based on the sensing information, the edge point information showing a position of a predetermined edge point of the projected image in the sensed image, and brightness index value distribution information showing a distribution of brightness index values of the projected image; and a correction information generation section which generates projection distance information which shows a projection distance, based on the edge point information, and generates correction information for correcting the image signal, based on the projection distance information and the brightness index value distribution information.