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:
May. 19, 2020
Filed:
Nov. 20, 2017
Applicant:
Google Llc, Mountain View, CA (US);
Inventors:
Assignee:
GOOGLE LLC, Mountain View, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H04N 19/00 (2014.01); H04N 19/139 (2014.01); H04N 19/105 (2014.01); H04N 19/577 (2014.01); H04N 19/573 (2014.01); H04N 19/172 (2014.01); H04N 19/537 (2014.01);
U.S. Cl.
CPC ...
H04N 19/139 (2014.11); H04N 19/105 (2014.11); H04N 19/172 (2014.11); H04N 19/537 (2014.11); H04N 19/573 (2014.11); H04N 19/577 (2014.11);
Abstract
An optical flow reference frame portion (e.g., a block or an entire frame) is generated that can be used for inter prediction of blocks of a current frame in a video sequence. A forward reference frame and a backward reference frame are used in an optical flow estimation that produces a respective motion field for pixels of a current frame. The motion fields are used to warp some or all pixels of the reference frames to the pixels of the current frame. The warped reference frame pixels are blended to form the optical flow reference frame portion. The inter prediction may be performed as part of encoding or decoding portions of the current frame.