Patent ID: 11895333
Assignee: LG ELECTRONICS INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. An image encoding method performed by an encoding apparatus, the method comprising:
determining a size of a minimum coding unit, wherein the minimum coding unit represents a smallest coding unit derivable from a largest coding unit based on a quad-tree structure;
generating information of the size of the minimum coding unit;
deriving a current coding unit, wherein a coding unit is split into multiple coding units in a current picture, wherein the current coding unit is one of the multiple coding units;
checking whether a size of the current coding unit is equal to the size of the minimum coding unit;
determining whether the current coding unit is partitioned into multiple prediction units based on the result of the checking; and
encoding image information including the information of the size of the minimum coding unit and prediction mode information for each of one or multiple prediction units,
wherein based on the size of the current coding unit being equal to the size of the minimum coding unit, the one or multiple prediction units are derived by partitioning from the current coding unit and explicit partition information related to whether the current coding unit is partitioned into the multiple prediction units is generated, and the explicit partition information is included in the image information, and
wherein based on the size of the current coding unit being different from the size of the minimum coding unit and a prediction mode of the current coding unit being an intra prediction mode, the one prediction unit of a same size as the current coding unit is derived from the current coding unit and the current coding unit cannot be partitioned into the multiple prediction units.