	US 12,108,045 B2
	Encoding/decoding method and apparatus for motion vector information
Fan Wang, Beijing (CN); Xiao Ouyang, Beijing (CN); and Yinji Piao, Beijing (CN)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Appl. No. 17/420,696
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
PCT Filed Jan. 3, 2020, PCT No. PCT/KR2020/000090 § 371(c)(1), (2) Date Jul. 5, 2021, PCT Pub. No. WO2020/141922, PCT Pub. Date Jul. 9, 2020.
Claims priority of application No. 201910011266.9 (CN), filed on Jan. 4, 2019.
Prior Publication US 2022/0103826 A1, Mar. 31, 2022
Int. Cl. H04N 19/53 (2014.01); H04N 19/105 (2014.01); H04N 19/137 (2014.01); H04N 19/176 (2014.01); H04N 19/30 (2014.01)

CPC H04N 19/137 (2014.11) [H04N 19/105 (2014.11); H04N 19/176 (2014.11); H04N 19/30 (2014.11)]

6 Claims

1. A method for encoding motion vector information, the method comprising:

determining index information indicating a motion vector resolution for a current block among a plurality of motion vector resolutions;

determining a motion vector prediction corresponding to the index information among M motion vector predictions included in a history-based motion vector prediction list, wherein based on a value of the index information being equal to n, an (M−n)^thmotion vector prediction among the M motion vector predictions included in the history-based motion vector prediction list is determined;

determining, for the current block, a motion vector difference based on the determined motion vector prediction corresponding to the index information and motion vector information of the current block; and

encoding, into a bitstream, the index information indicating the motion vector resolution for the current block among the plurality of motion vector resolutions and motion vector difference information indicating the motion vector difference.