US 12,452,446 B2
Joint motion vector difference coding
Liang Zhao, Sunnyvale, CA (US); Xin Zhao, San Jose, CA (US); and Shan Liu, San Jose, CA (US)
Assigned to Tencent America LLC, Palo Alto, CA (US)
Filed by Tencent America LLC, Palo Alto, CA (US)
Filed on May 23, 2024, as Appl. No. 18/672,244.
Application 18/672,244 is a continuation of application No. 17/700,745, filed on Mar. 22, 2022, granted, now 12,022,106.
Claims priority of provisional application 63/245,655, filed on Sep. 17, 2021.
Prior Publication US 2024/0323428 A1, Sep. 26, 2024
Int. Cl. H04N 19/513 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/513 (2014.11) [H04N 19/159 (2014.11); H04N 19/176 (2014.11); H04N 19/70 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method for encoding video data comprising:
determining whether an inter predication mode and a delta motion vector are to be applied for a current block in a current frame of the video data;
generating a flag (joint_mvd_flag) indicating whether a first delta MV for a first reference frame in a reference list 0 and a second delta MV for a second reference frame in a reference list 1 are jointly signaled for compound inter prediction of the current block; and
encoding the flag in a bitstream for the video data.