US 11,659,200 B2
Method and apparatus for coding video using merging candidate list according to block division
Yong Jo Ahn, Seoul (KR); and Ho Chan Ryu, Seoul (KR)
Assigned to INTELLECTUAL DISCOVERY CO., LTD., Seoul (KR)
Filed by INTELLECTUAL DISCOVERY CO., LTD., Seoul (KR)
Filed on Jun. 11, 2021, as Appl. No. 17/345,118.
Application 17/345,118 is a continuation of application No. 16/647,665, granted, now 11,064,217, previously published as PCT/KR2018/010951, filed on Sep. 18, 2018.
Claims priority of application No. 10-2017-0119362 (KR), filed on Sep. 18, 2017; and application No. 10-2017-0126753 (KR), filed on Sep. 29, 2017.
Prior Publication US 2021/0306661 A1, Sep. 30, 2021
Int. Cl. H04N 19/577 (2014.01); H04N 19/593 (2014.01); H04N 19/124 (2014.01); H04N 19/61 (2014.01); H04N 19/82 (2014.01); H04N 19/91 (2014.01); H04N 19/96 (2014.01)
CPC H04N 19/577 (2014.11) [H04N 19/593 (2014.11); H04N 19/124 (2014.11); H04N 19/619 (2014.11); H04N 19/82 (2014.11); H04N 19/91 (2014.11); H04N 19/96 (2014.11)] 6 Claims
OG exemplary drawing
 
5. An image decoding apparatus comprising:
an inter prediction unit splitting a first coding block into a plurality of second coding blocks according to a tree-based split structure, wherein the tree-based split structure includes a triple-tree split structure, splitting a second coding block into two sub-regions based on block split type information, and determining motion information of a current sub-region among the two sub-regions from one of a plurality of merging candidates; and
an adder generating a reconstruction signal by adding a prediction signal to a residual signal,
wherein the prediction signal is obtained based on the motion information of the current sub-region,
wherein the plurality of merging candidates comprises at least any one of a spatial neighboring merging candidate, a temporal neighboring merging candidate, or a zero motion merging candidate to be added to a merging candidate list,
wherein the spatial neighboring merging candidate comprises at least one of a left neighboring block, a bottom-left neighboring block, a top-left neighboring block, a top neighboring block or a top-right neighboring block,
wherein when the plurality of merging candidates comprises the left neighboring block, the bottom-left neighboring block, the top neighboring block and the top-right neighboring block, the top-left neighboring block is not added to the plurality of merging candidates, and
wherein when the second coding block is split into the two sub-regions in horizontal direction according to the block split type information and the current sub-region is one of among the two sub-regions, a number of the merging candidates available for motion compensation of the current sub-region among the two sub-regions is less than a number of merging candidates available for motion compensation of the other one of the two sub-regions.