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. 15, 2021
Filed:
Apr. 12, 2018
Sony Corporation, Tokyo, JP;
Yusuke Miyagi, Kanagawa, JP;
Yoshitaka Morigami, Tokyo, JP;
SONY CORPORATION, Tokyo, JP;
Abstract
A filter processing sectionperforms a filter process for applying an offset to pixels of a decoded image. A filter controllerinhibits the offset from being applied to an edge portion depending on occurrence of a transform unit in a transformation skip mode in which orthogonal transformation is not performed on a predicted residual. Furthermore, the filter controllerdetermines whether an offset for gradation adjustment using the decoded image is to be applied in the filter processing sectionor not, and sets an offset in case the offset is to be applied. It is possible to make less conspicuous in the boundary between a transform unit where orthogonal transformation is performed by the offset for gradation adjustment and the transform unit where orthogonal transformation is skipped. The image quality of the decoded image is restrained from being lowered.