US 11,924,407 B2
Method and apparatus for deriving an interpolation filter index for a current block
Timofey Mikhailovich Solovyev, Moscow (RU); Sergey Yurievich Ikonin, Moscow (RU); Roman Igorevich Chernyak, Moscow (RU); Alexander Alexandrovich Karabutov, Moscow (RU); Elena Alexandrovna Alshina, Munich (DE); and Huanbang Chen, Shenzhen (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed by Huawei Technologies Co., Ltd., Guangdong (CN)
Filed on Oct. 15, 2021, as Appl. No. 17/451,139.
Application 17/451,139 is a continuation of application No. PCT/CN2020/085681, filed on Apr. 20, 2020.
Claims priority of provisional application 62/909,761, filed on Oct. 2, 2019.
Claims priority of provisional application 62/909,763, filed on Oct. 2, 2019.
Claims priority of provisional application 62/845,938, filed on May 10, 2019.
Claims priority of provisional application 62/836,072, filed on Apr. 19, 2019.
Prior Publication US 2022/0038686 A1, Feb. 3, 2022
Int. Cl. H04N 19/105 (2014.01); H04N 19/132 (2014.01); H04N 19/137 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01); H04N 19/82 (2014.01)
CPC H04N 19/105 (2014.11) [H04N 19/132 (2014.11); H04N 19/137 (2014.11); H04N 19/159 (2014.11); H04N 19/176 (2014.11); H04N 19/82 (2014.11)] 40 Claims
OG exemplary drawing
 
1. A method of constructing a history-based motion information candidate list for inter prediction of a block, the method comprising:
obtaining a history-based motion information candidate list, wherein the history-based motion information candidate list is an ordered list comprising N history-based motion information candidates Hk, k=0, . . . , N−1, the N history-based motion information candidates Hk containing motion information of N preceding blocks preceding a block, wherein N is an integer number greater than 0, wherein each history-based motion information candidate comprises motion information that includes:
i) one or more motion vectors (MVs),
ii) one or more reference picture indices corresponding to the one or more MVs, and
iii) an interpolation filter index; and
updating the history-based motion information candidate list based on motion information of the block, wherein the motion information of the block comprises:
i) one or more MVs of the block,
ii) one or more reference picture indices corresponding to the MVs of the block, and
iii) an interpolation filter index.