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:
Jun. 19, 2018
Filed:
Jan. 12, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
Akihiro Oishi, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image capturing apparatus has an encoding unit that encodes by generating a plane of each of color components that configure image data, and independently for each of the planes of the color components, performing frequency conversion processing, quantization processing, and entropy encoding, and a control unit that controls the encoding unit. The control unit decide whether or not to correct a quantization coefficient that is used in quantization processing for a plane of each color component obtained by the image sensor based on an ISO sensitivity or exposure information for a time of capturing; and in a case when it decides that a quantization coefficient will be corrected, determines, based on a distribution of a histogram of a plane of each color component, a quantization coefficient used in quantization processing for the respective color component.