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:
Sep. 23, 2025
Filed:
May. 09, 2023
Huawei Technologies Co., Ltd., Guangdong, CN;
Roman Igorevich Chernyak, Munich, DE;
Alexander Alexandrovich Karabutov, Munich, DE;
Sergey Yurievich Ikonin, Moscow, RU;
Timofey Mikhailovich Solovyev, Munich, DE;
Haitao Yang, Shenzhen, CN;
Jianle Chen, San Diego, CA (US);
Yin Zhao, Hangzhou, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
A method for inverse quantization of a current block of a picture is provided. The method is performed by a decoder, and the picture comprises a luminance component and a chrominance component, where the luminance component and the chrominance component are partitioned into multiple blocks. The method includes obtaining one or more existing quantization parameter (QP) values from a received bitstream, wherein the one or more existing QP values are associated with a current block in the chrominance component; determining a QP value for the current block in the chrominance component based on the one or more existing QP values; performing inverse quantization on the current block in the chrominance component using the determined QP value.