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:
Apr. 29, 2025
Filed:
Feb. 09, 2024
Sharp Kabushiki Kaisha, Osaka, JP;
Yukinobu Yasugi, Sakai, JP;
Eiichi Sasaki, Sakai, JP;
Tomohiro Ikai, Sakai, JP;
Tomoko Aono, Sakai, JP;
SHARP KABUSHIKI KAISHA, Sakai, JP;
Abstract
The amount of memory required for CCLM prediction is reduced. The CCLM prediction parameter derivation unit () derives a scale shift value corresponding to a luma difference value, and derives a CCLM prediction parameter, by shifting, by using the scale shift value, a value obtained by multiplying a value of a table referred to with a value obtained by performing right shift of the luma difference value by the scale shift value as an index and a chroma difference value. In addition, in a case of deriving a prediction image, a bit width is reduced by adaptively deriving a shift amount of a linear prediction parameter from the chroma difference value.