US 12,081,741 B2
Method and apparatus for encoding and decoding image, and recording medium for storing bitstream
Dong San Jun, Daejeon (KR); Ha Hyun Lee, Seoul (KR); Jung Won Kang, Daejeon (KR); Hyun Suk Ko, Daejeon (KR); Sung Chang Lim, Daejeon (KR); Jin Ho Lee, Daejeon (KR); Seung Hyun Cho, Daejeon (KR); Hui Yong Kim, Daejeon (KR); and Jin Soo Choi, Daejeon (KR)
Assigned to INTELLECTUAL DISCOVERY CO., LTD., Seoul (KR)
Filed by INTELLECTUAL DISCOVERY CO., LTD., Seoul (KR)
Filed on Jul. 3, 2023, as Appl. No. 18/346,735.
Application 18/346,735 is a continuation of application No. 17/941,182, filed on Sep. 9, 2022.
Application 17/941,182 is a continuation of application No. 16/336,264, granted, now 11,477,442, issued on Oct. 18, 2022, previously published as PCT/KR2017/010652, filed on Sep. 26, 2017.
Claims priority of application No. 10-2016-0127876 (KR), filed on Oct. 4, 2016.
Prior Publication US 2023/0344992 A1, Oct. 26, 2023
Int. Cl. H04N 19/109 (2014.01); H04N 19/117 (2014.01); H04N 19/119 (2014.01); H04N 19/132 (2014.01); H04N 19/172 (2014.01); H04N 19/174 (2014.01); H04N 19/176 (2014.01); H04N 19/182 (2014.01); H04N 19/513 (2014.01); H04N 19/86 (2014.01); H04N 19/91 (2014.01)
CPC H04N 19/109 (2014.11) [H04N 19/117 (2014.11); H04N 19/119 (2014.11); H04N 19/132 (2014.11); H04N 19/172 (2014.11); H04N 19/174 (2014.11); H04N 19/176 (2014.11); H04N 19/182 (2014.11); H04N 19/513 (2014.11); H04N 19/86 (2014.11); H04N 19/91 (2014.11)] 3 Claims
OG exemplary drawing
 
1. An image decoding method, the method comprising:
deriving a co-located subblock corresponding to a current subblock using motion information of a spatial neighboring block of a current block, wherein the current subblock is a subblock of the current block, wherein the co-located subblock is a subblock of a co-located block corresponding to the current block in a co-located image;
deriving a subblock-based temporal merge candidate for the current block based on motion information of the co-located subblock; and
generating a merge candidate list including the subblock-based temporal merge candidate,
wherein the subblock-based temporal merge candidate is derived from motion information of a subblock at the predefined position in the co-located block when the motion information of the co-located subblock is unavailable, and
wherein the subblock at the predefined position is a subblock located at the center of the co-located block.