US 12,177,419 B2
Method and apparatus for constructing motion information list in video encoding and decoding and device
Ye Hu, Shenzhen (CN); Xiaozhong Xu, Shenzhen (CN); Yingbin Wang, Shenzhen (CN); and Shan Liu, Shenzhen (CN)
Assigned to TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED, Shenzhen (CN)
Filed by Tencent Technology (Shenzhen) Company Limited, Shenzhen (CN)
Filed on Aug. 26, 2022, as Appl. No. 17/896,930.
Application 17/896,930 is a continuation of application No. PCT/CN2021/112092, filed on Aug. 11, 2021.
Claims priority of application No. 202010843772.7 (CN), filed on Aug. 20, 2020.
Prior Publication US 2022/0408084 A1, Dec. 22, 2022
Int. Cl. H04N 19/176 (2014.01); H04N 19/105 (2014.01); H04N 19/137 (2014.01)
CPC H04N 19/105 (2014.11) [H04N 19/137 (2014.11); H04N 19/176 (2014.11)] 19 Claims
OG exemplary drawing
 
1. A method for constructing a motion information list in video encoding and decoding, the method comprising:
constructing a candidate motion information list for performing intra-frame prediction for a current block by filling the candidate motion information list using an intra-frame historical motion information prediction (IntraHMVP) list;
determining that motion information in the candidate motion information list of the current block is insufficient after the construction;
constructing a space domain motion information list for the current block, the space domain motion information list comprising motion information of a space domain neighboring block of the current block, and the space domain neighboring block comprising at least an intra string copy (ISC) block; and
obtaining at least one piece of motion information from the space domain motion information list and filling the candidate motion information list using the at least one piece of motion information, wherein a position of the at least one piece of motion information exported from the space domain motion information list in the candidate motion information list is behind a position of any motion information exported from the IntraHMVP list in the candidate motion information list,
the candidate motion information list being used for providing a candidate prediction displacement vector for the current block.