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:
Nov. 03, 2026
Filed:
Aug. 18, 2023
Apple Inc., Cupertino, CA (US);
Yeqing Wu, Cupertino, CA (US);
Yunfei Zheng, Santa Clara, CA (US);
Guoxin Jin, San Diego, CA (US);
Yixin Du, Milpitas, CA (US);
Alican Nalci, Cupertino, CA (US);
Hilmi Enes Egilmez, Santa Clara, CA (US);
Jun Xin, San Jose, CA (US);
Hsi-Jung Wu, San Jose, CA (US);
APPLE INC., Cupertino, CA (US);
Abstract
Techniques are disclosed for improved video coding with virtual reference frames. A motion vector for prediction of a pixel block from a reference may be constrained based on the reference. In as aspect, if the reference is a temporally interpolated virtual reference frame with corresponding time close to the time of the current pixel block, the motion vector for prediction may be constrained magnitude and/or precision. In another aspect, a bitstream syntax for encoding the constrained motion vector may also be constrained. In this manner, the techniques proposed herein contribute to improved coding efficiencies.
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