US 11,729,411 B2
Inter prediction mode-based image processing method and apparatus therefor
Jaehyun Lim, Seoul (KR); Naeri Park, Seoul (KR); Jungdong Seo, Seoul (KR); and Junghak Nam, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Jun. 2, 2022, as Appl. No. 17/831,288.
Application 17/831,288 is a continuation of application No. 17/010,474, filed on Sep. 2, 2020, granted, now 11,368,707.
Application 17/010,474 is a continuation of application No. 15/754,720, granted, now 10,798,400, issued on Oct. 6, 2020, previously published as PCT/KR2016/002037, filed on Feb. 29, 2016.
Claims priority of provisional application 62/213,627, filed on Sep. 3, 2015.
Claims priority of provisional application 62/208,830, filed on Aug. 24, 2015.
Prior Publication US 2022/0337862 A1, Oct. 20, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/51 (2014.01); H04N 19/53 (2014.01); H04N 19/70 (2014.01); H04N 19/513 (2014.01); H04N 19/523 (2014.01); H04N 19/176 (2014.01)
CPC H04N 19/51 (2014.11) [H04N 19/176 (2014.11); H04N 19/513 (2014.11); H04N 19/523 (2014.11); H04N 19/53 (2014.11); H04N 19/70 (2014.11)] 13 Claims
OG exemplary drawing
 
1. A method of decoding a video signal, comprising:
obtaining residual samples of a current block;
deriving a motion vector predictor (MVP) based on motion information of a neighbor block of the current block;
obtaining a motion vector difference (MVD) of the current block;
obtaining a flag related to a resolution of the MVD, a value 0 of the flag specifying that the resolution of the MVD is ¼ pel-scale;
rounding the MVP based on the flag;
scaling the MVD based on the flag;
obtaining a motion vector (MV) of the current block based on the scaled MVD and the rounded MVP;
generating prediction samples of the current block based on the MV; and
generating reconstructed samples of the current block based on the prediction samples and the residual samples.