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:
Aug. 06, 2024
Filed:
Mar. 30, 2022
Huawei Technologies Co., Ltd., Shenzhen, CN;
Timofey Mikhailovich Solovyev, Moscow, RU;
Maxim Borisovitch Sychev, Moscow, RU;
Huanbang Chen, Shenzhen, CN;
Alexander Alexandrovich Karabutov, Moscow, RU;
Roman Igorevich Chernyak, Moscow, RU;
Sergey Yurievich Ikonin, Moscow, RU;
Haitao Yang, Shenzhen, CN;
Elena Alexandrovna Alshina, Munich, DE;
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Abstract
A method of coding implemented by a decoding/encoding device for coding video data includes for a block coded in affine mode, determining control point motion vectors (CPMVs); determining a reference area in a reference picture corresponding to a sub-block of the affine coded block based on the CPMVs; setting a variable clipMVX equal to TRUE if a size of the reference area is greater than a predefined threshold, otherwise setting a variable clipMVX equal to FALSE; deriving a pixel-based motion vector field for the affine coded block; wherein, if the variable clipMVX is equal to TRUE, the deriving the pixel-based motion vector field further comprises motion vector clipping based on a first clipping range, wherein the first clipping range is determined based on the determined CPMVs and a size of the affine coded block.