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. 09, 2010
Filed:
Oct. 08, 2003
Teruhiko Ueyama, Kanagawa, JP;
Teruhiko Ueyama, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An object of this invention is to limit a correction amount for correcting the exposure error of a photographed image so as to prevent an excessively corrected image sensing result, and obtain a desired image sensing result by changing the correction width of the correction amount in accordance with the setting state and operation state of an image sensing apparatus and the object brightness in image sensing. To achieve this object, an exposure error value is calculated from the exposure level of an image signal and an exposure level obtained by photometry. The correction amount of the exposure error value is calculated on the basis of at least one of the setting state of the image sensing apparatus, the operation state of the image sensing apparatus, and the object brightness state in image sensing. The exposure error of the sensed image is corrected using the correction amount.