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:
Mar. 04, 2025
Filed:
Mar. 22, 2022
Huawei Technologies Co., Ltd., Guangdong, 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;
HUAWEI TECHNOLOGIES CO., LTD., Guangdong, CN;
Abstract
A method for inverse quantization of a current block of a picture, the method comprising: receiving a bitstream; obtaining a joint chrominance component residual, JCCR, control flag from the bitstream; obtaining a chrominance mapping information from the bitstream based on the JCCR control flag; obtaining at least one chrominance quantization parameter, QP, offset from the bitstream based on the JCCR control flag; obtaining a QP value for the current chrominance block based on the obtained chrominance mapping information and the at least one obtained chrominance QP offset; performing inverse quantization on the current chrominance block by using the obtained QP value.