US 12,096,022 B2
Image decoding method for performing inter-prediction when prediction mode for current block ultimately cannot be selected, and device for same
Hyeongmoon Jang, Seoul (KR); Naeri Park, Seoul (KR); and Seunghwan Kim, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Mar. 1, 2023, as Appl. No. 18/115,883.
Application 18/115,883 is a continuation of application No. 17/555,190, filed on Dec. 17, 2021, granted, now 11,632,568.
Application 17/555,190 is a continuation of application No. PCT/KR2020/007944, filed on Jun. 19, 2020.
Claims priority of provisional application 62/863,810, filed on Jun. 19, 2019.
Prior Publication US 2023/0254503 A1, Aug. 10, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/52 (2014.01); H04N 19/105 (2014.01); H04N 19/109 (2014.01); H04N 19/119 (2014.01); H04N 19/132 (2014.01); H04N 19/139 (2014.01); H04N 19/176 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/52 (2014.11) [H04N 19/105 (2014.11); H04N 19/109 (2014.11); H04N 19/119 (2014.11); H04N 19/132 (2014.11); H04N 19/139 (2014.11); H04N 19/176 (2014.11); H04N 19/70 (2014.11)] 12 Claims
OG exemplary drawing
 
1. A decoding apparatus for image decoding, the decoding apparatus comprising:
a memory; and
at least one processor connected to the memory, the at least one processor configured to:
receive image information including inter prediction mode information through a bitstream;
generate a merge candidate list of a current block based on the inter prediction mode information;
derive motion information of the current block based on a candidate selected from the merge candidate list;
generate prediction samples of the current block based on the motion information; and
generate a reconstructed picture based on the prediction samples,
wherein the image information includes a first enabled flag for a combined inter-picture merge and intra-picture prediction (CIIP) mode and a second enabled flag for a partitioning prediction mode, wherein for the partitioning prediction mode, prediction is performed by partitioning a block, wherein the partitioning includes triangle partitioning,
wherein a merge data syntax is related to the inter prediction mode information, wherein the merge data syntax included in the image information includes at least one of a regular merge flag related to whether a regular merge mode is applied to the current block, an mmvd merge flag related to whether a merge mode with motion vector difference (MMVD) is applied to the current block and a merge subblock flag related to whether a subblock merge mode is applied to the current block,
wherein a parsing order of the regular merge flag precedes a parsing order of the mmvd merge flag, and
wherein based on a value the first enabled flag being equal to 0, a value the second enabled flag being equal to 0, a value of the merge subblock flag being equal to 0 and a value of the mmvd merge flag being equal to 0, the regular merge mode is applied and merge index information for the regular merge mode is included in the merge data syntax.