Patent ID: 11949883
Assignee: LG ELECTRONICS INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A decoding apparatus for image decoding, the decoding apparatus comprising:
an entropy decoder configured to receive information on a parallel merge level which represents a size of a parallel merging unit region, to obtain merge flag information which represents whether a merge mode is applied to a current block;
a predictor configured to derive spatial merging candidates for the current block based on the merge flag information indicating that the merge mode is applied to the current block, to construct a merging candidate list including the spatial merging candidates for the current block, to derive motion information of the current block based on one of the spatial merging candidates in the merging candidate list, to derive prediction samples of the current block based on the derived motion information; and
an adder configured to generate a reconstructed picture based on the prediction samples,
wherein the size of the parallel merging unit region is derived based on the information on the parallel merge level,
wherein the current block belongs to the parallel merging unit region,
wherein the current block is related to a prediction unit (PU), and the PU is one of PUs partitioned from a coding unit (CU),
wherein for the PU, having a size smaller than the size of the parallel merging unit region and located within the parallel merging unit region, the spatial merging candidates are identical to spatial merging candidates of a 2N×2N PU which has a same size as the parallel merging unit region,
wherein the spatial merging candidates of the 2N×2N PU which has the same size as the parallel merging unit region, are derived from a lower left corner neighboring block, a left neighboring block, an upper right corner neighboring block, an upper neighboring block and an upper left corner neighboring block of the parallel merging unit region, and
wherein the information on the parallel merge level is received through a picture parameter set.