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:
Jul. 18, 2017
Filed:
Oct. 13, 2015
Exposure control apparatus and control method thereof, image capturing apparatus, and storage medium
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Yosuke Mine, Tama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/235 (2006.01); G03B 7/093 (2006.01);
U.S. Cl.
CPC ...
H04N 5/2351 (2013.01); G03B 7/093 (2013.01); H04N 5/2354 (2013.01); H04N 5/2355 (2013.01);
Abstract
An exposure control apparatus comprises an acquisition unit including a plurality of pixels that are arranged two-dimensionally, and configured to acquire image data, a compression unit configured to compress the image data and generate compressed data, a calculation unit configured to calculate a first photometric value based on the compressed data, a conversion unit configured to convert the first photometric value into a second photometric value corresponding to the image data before the compression; and an exposure control unit configured to perform exposure control based on the second photometric value.