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. 19, 2024
Filed:
Mar. 22, 2022
Huawei Technologies Co., Ltd., Shenzhen, CN;
Roman Igorevich Chernyak, Moscow, RU;
Sergey Yurievich Ikonin, Moscow, RU;
Timofey Mikhailovich Solovyev, Moscow, RU;
Alexander Alexandrovich Karabutov, Moscow, RU;
Elena Alexandrovna Alshina, Munich, DE;
Anand Meher Kotra, Munich, DE;
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Abstract
A method for inverse quantization of a current block of a picture or a frame, where the method is performed by a decoder, and includes obtaining, by a decoder, from a bitstream, a joint chrominance residual (JCCR) mode for a current block of a picture or a frame, obtaining one or more quantization parameter (QP) offset values for chrominance components from the bitstream, determining at least one QP value for the current block depending on the JCCR mode, and performing an inverse quantization process on a chrominance component of the current block using the determined QP value.