US 12,439,052 B2
Image encoding/decoding method and apparatus, and recording medium for storing bitstream
Ha Hyun Lee, Daejeon (KR); Jung Won Kang, Daejeon (KR); Sung Chang Lim, Daejeon (KR); Jin Ho Lee, Daejeon (KR); Hui Yong Kim, Daejeon (KR); Hae Chul Choi, Daejeon (KR); Dae Hyeok Gwon, Daejeon (KR); and Jae Ryun Choi, Daejeon (KR)
Assigned to ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon (KR); and HANBAT NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION, Daejeon (KR)
Filed by ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon (KR); and HANBAT NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
Filed on Jun. 5, 2024, as Appl. No. 18/734,508.
Application 18/734,508 is a continuation of application No. 18/303,458, filed on Apr. 19, 2023, granted, now 12,041,242.
Application 18/303,458 is a continuation of application No. 17/419,220, granted, now 11,671,603, issued on Jun. 6, 2023, previously published as PCT/KR2019/018629, filed on Dec. 27, 2019.
Claims priority of application No. 10-2018-0172114 (KR), filed on Dec. 28, 2018; application No. 10-2019-0002675 (KR), filed on Jan. 9, 2019; and application No. 10-2019-0029926 (KR), filed on Mar. 15, 2019.
Prior Publication US 2024/0333937 A1, Oct. 3, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/00 (2014.01); H04N 19/105 (2014.01); H04N 19/137 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01)
CPC H04N 19/137 (2014.11) [H04N 19/105 (2014.11); H04N 19/159 (2014.11); H04N 19/176 (2014.11)] 12 Claims
OG exemplary drawing
 
1. A decoding method, comprising:
determining a current block;
deriving a motion vector of the current block; and
generating a prediction block for the current block using the motion vector of the current block, wherein
the motion vector of the current block corresponds to a sum of a motion vector of a candidate in a list and a motion vector difference,
first information indicating the candidate among candidates in the list is decoded based on a maximum number of the candidates in the list,
a first indicator representing direction information of the motion vector difference and a second indicator representing distance information of the motion vector difference are used,
precision information for the motion vector difference is used, and
the precision information indicates whether the motion vector difference uses only an integer sample precision.