Patent ID: 11917212
Assignee: SK TELECOM CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 3:
4. An apparatus of encoding video data, the apparatus comprising at least one processor configured to:
encode restriction information related to a tree split structure, the restriction information including information on maximum block size allowed for a root node of a binary tree;
split a coding tree unit (CTU) in the tree split structure and encode split information related to the tree split structure of the CTU, the tree split structure allowing a quadtree having multi-depth of consecutive quadtree divisions and a binary tree having multi-depth of consecutive binary tree divisions, wherein the tree split structure is configured such that the binary tree is rooted from a leaf node of the quadtree when a size of a block corresponding to the leaf node of the quadtree is not greater than the maximum block size;
select, from a plurality of prediction partition modes, a prediction partition mode for a square or rectangular shaped coding block corresponding to a leaf node of the tree split structure, and encode mode type information for representing the selected prediction partition mode, wherein the plurality of prediction partition modes includes at least one prediction partition mode allowing the coding block to be predicted by being split into two equal-sized triangles; and
encode the coding block according to the selected prediction partition mode,
wherein, when the coding block is split into the two triangles, the processor is configured to encode the coding block by performing a process comprising:
configuring a plurality of merge candidates comprised of motion vectors of pre-decoded blocks neighboring to the coding block;
setting motion vectors respectively corresponding to the two triangles equal to two merge candidates included in the plurality of merge candidates;
encoding merge index information for indicating the two merge candidates which are set as motion vectors respectively corresponding to the two triangles,
inter-predicting the coding block which is split into the two triangles, by using the set motion vectors,

wherein the at least one prediction partition mode includes a down-right diagonal split type and an up-right diagonal split type.