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:
Jan. 30, 2024
Filed:
Sep. 17, 2021
Applicant:
Huawei Technologies Co., Ltd., Guangdong, CN;
Inventors:
Assignee:
HUAWEI TECHNOLOGIES CO., LTD., Guangdong, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 19/577 (2014.01); H04N 19/132 (2014.01); H04N 19/172 (2014.01); H04N 19/176 (2014.01);
U.S. Cl.
CPC ...
H04N 19/577 (2014.11); H04N 19/132 (2014.11); H04N 19/172 (2014.11); H04N 19/176 (2014.11);
Abstract
In some embodiments, a video encoder or a video decoder obtains a pair of motion vectors for a current coding block of a video signal with respect to two reference frames. Predictions of the current block are generated using the pair of motion vectors from respective reference frames. The video encoder or video decoder further determine an optical flow for the current coding block based on samples values in the predictions. One component of the optical flow is determined based on the other component of the optical flow. Bi-predictive optical flow (BPOF) can be performed on the current coding block using the determined optical flow.