CPC H04N 19/513 (2014.11) [H04N 19/139 (2014.11); H04N 19/176 (2014.11); H04N 19/583 (2014.11)] | 5 Claims |
1. A method of decoding an image with a decoding apparatus, comprising:
dividing, with the decoding apparatus, a coding tree block based on a tree-based division to determine a current block, the tree-based division including at least one of a quad division, a binary division, or a triple division;
constructing, with the decoding apparatus, a merge candidate list of the current block, the merge candidate list comprising a spatial merge candidate derived from a spatial neighboring block adjacent to the current block;
obtaining, with the decoding apparatus, motion information of the current block based on the merge candidate list; and
performing, with the decoding apparatus, inter-prediction on the current block based on the motion information of the current block,
wherein the method further comprises:
dividing, with the decoding apparatus, based on the triple division, a first coding block resulting from dividing the coding tree block into three second coding blocks,
wherein one of the three second coding blocks has half size of the first coding block and the other two of the three second coding blocks have quarter size of the first coding block,
wherein one of the three second coding blocks has half size of the first coding block is located between the other two of the three second coding blocks,
wherein at least one of the three second coding blocks is further divided into two third coding blocks,
wherein, with respect to the binary division for the at least one of the three second coding blocks, it is restricted so as not to be divided in a same division direction as a division direction of the triple division for the first coding block, and
wherein the restriction is applied only to one of the three second coding blocks located between the other two of the three second coding blocks.
|