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:
Nov. 17, 2015
Filed:
Feb. 06, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Akihiro Ouchi, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An image processing apparatus corrects a luminance level of an overlap region of projection screens projected by a plurality of image display apparatuses. The image processing apparatus includes: a coordinate conversion unit configured to convert a coordinate value of the overlap region into a coordinate value of an overlap region of not less than a maximum overlap region width; an interpolation calculation unit configured to select two luminance correction data using the converted coordinate value, and to calculate a luminance correction coefficient by interpolating the luminance correction data using the selected luminance correction data and the converted coordinate value; and a correction unit configured to correct the luminance level of the overlap region using the luminance correction coefficient.