US 12,137,241 B2
History-based image coding method and apparatus
Naeri Park, Seoul (KR); Seunghwan Kim, Seoul (KR); Junghak Nam, Seoul (KR); Jaehyun Lim, Seoul (KR); and Hyeongmoon Jang, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Jun. 28, 2023, as Appl. No. 18/215,648.
Application 18/215,648 is a continuation of application No. 17/863,829, filed on Jul. 13, 2022, granted, now 11,729,414.
Application 17/863,829 is a continuation of application No. 17/242,646, filed on Apr. 28, 2021, granted, now 11,445,209, issued on Sep. 13, 2022.
Application 17/242,646 is a continuation of application No. 16/793,789, filed on Feb. 18, 2020, granted, now 11,025,945, issued on Jun. 1, 2021.
Application 16/793,789 is a continuation of application No. PCT/KR2019/012991, filed on Oct. 4, 2019.
Claims priority of provisional application 62/740,972, filed on Oct. 4, 2018.
Prior Publication US 2023/0421798 A1, Dec. 28, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/513 (2014.01); H04N 19/105 (2014.01); H04N 19/115 (2014.01); H04N 19/132 (2014.01); H04N 19/137 (2014.01); H04N 19/176 (2014.01)
CPC H04N 19/513 (2014.11) [H04N 19/105 (2014.11); H04N 19/115 (2014.11); H04N 19/132 (2014.11); H04N 19/137 (2014.11); H04N 19/176 (2014.11)] 4 Claims
OG exemplary drawing
 
1. An image decoding method performed by a decoding apparatus, the method comprising:
deriving a history-based motion vector prediction (HMVP) buffer for a current block;
configuring motion vector predictor (MVP) candidate list based on an HMVP candidate comprised in the HMVP buffer, wherein an MVP candidate in the MVP candidate list is derived based on the HMVP candidate of which reference picture is same as a reference picture of the current block;
deriving motion information of the current block based on the MVP candidate list;
generating a prediction sample for the current block based on the motion information; and
generating a reconstructed sample based on the prediction sample,
wherein a current picture is split into one or more tiles, and
wherein the HMVP buffer is initialized at a firstly-ordered CTU per each CTU row of each tile.