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:
Oct. 31, 2023
Filed:
Dec. 02, 2022
Sharp Kabushiki Kaisha, Sakai, JP;
Fg Innovation Company Limited, Tuen Mun, HK;
Frank Bossen, Vancouver, WA (US);
Kiran Mukesh Misra, Vancouver, WA (US);
Christopher Andrew Segall, Vancouver, WA (US);
Jie Zhao, Camas, WA (US);
Weijia Zhu, Sakai, JP;
SHARP KABUSHIKI KAISHA, Sakai, JP;
FG Innovation Company Limited, Tuen Mun, HK;
Abstract
An electronic device of decoding a current video block in a video picture is provided. The electronic device determines whether a partitioning scheme of the current video block is a single tree partitioning or a dual tree partitioning. The electronic device selects, based on the partitioning scheme, one derivation from candidate derivations to compute a first predictive quantization parameter (QP) for the current video block. A first derivation comprises computing the first predictive QP based at least in part on another QP and an additional value when the partitioning scheme is the single tree partitioning. A second derivation comprises computing the first predictive QP by using a previously-derived QP when the partitioning scheme is the dual tree partitioning. The electronic device computes a second QP based at least in part on the first predictive QP and an offset value, and use the second QP to decode the current video block.