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. 01, 2022
Filed:
Jan. 16, 2019
Qualcomm Incorporated, San Diego, CA (US);
Yi-Wen Chen, San Diego, CA (US);
Wei-Jung Chien, San Diego, CA (US);
Yu-Chen Sun, Bellevue, WA (US);
Li Zhang, San Diego, CA (US);
Hsiao-Chiang Chuang, San Diego, CA (US);
Marta Karczewicz, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Improved systems and methods related to decoder-side motion vector derivation (DMVD), for example, in applying one or more constraints to motion information, such as a MV derived by DMVD, and/or a MV difference between an initial MV and an MV derived by DMVD. These techniques may be applied to any of the existing video codecs, such as HEVC (High Efficiency Video Coding), and/or may be an efficient coding tool in any future video coding standards. In one example, the block size used for DMVD can be restricted. In another example, FRUC bilateral matching can be simplified by not searching outside reference blocks indicated by the original motion vector.