US 11,838,499 B2
Encoding/decoding method and apparatus for coding unit partitioning
Ki Baek Kim, Daejeon (KR)
Assigned to B1 INSTITUTE OF IMAGE TECHNOLOGY, INC., Seoul (KR)
Filed by B1 INSTITUTE OF IMAGE TECHNOLOGY, INC., Seoul (KR)
Filed on May 23, 2022, as Appl. No. 17/750,726.
Application 17/750,726 is a division of application No. 17/109,135, filed on Dec. 1, 2020, granted, now 11,381,809.
Application 17/109,135 is a division of application No. 16/880,788, filed on May 21, 2020, granted, now 11,012,689, issued on May 18, 2021.
Application 16/880,788 is a continuation of application No. PCT/KR2019/000436, filed on Jan. 11, 2019.
Claims priority of application No. 10-2018-0005294 (KR), filed on Jan. 15, 2018.
Prior Publication US 2022/0286670 A1, Sep. 8, 2022
Int. Cl. H04N 19/105 (2014.01); H04N 19/117 (2014.01); H04N 19/176 (2014.01); H04N 19/186 (2014.01)
CPC H04N 19/105 (2014.11) [H04N 19/117 (2014.11); H04N 19/176 (2014.11); H04N 19/186 (2014.11)] 7 Claims
OG exemplary drawing
 
1. An image decoding method performed by an image decoding apparatus, the method comprising:
a block partitioning step for partitioning a maximum coding unit included in a current image into at least one coding unit; and
a step for decoding the at least one coding unit,
wherein the block partitioning step performs at least one among a first tree-based partitioning and a second tree-based partitioning,
wherein the block partitioning step is performed recursively for a coding unit generated by the block partitioning step,
wherein the block partitioning step for a coding unit generated by the second tree-based partitioning does not perform the first tree-based partitioning,
wherein the block partitioning step is performed based on at least one among first block partitioning information on the first tree-based partitioning or second block partitioning information on the second tree-based partitioning obtained from a bitstream,
wherein the first block partitioning information comprises information on whether to perform the first tree-based partitioning,
wherein the second block partitioning information is obtained from the bitstream in case the first block partitioning information indicates the first tree-based partitioning is not performed,
wherein the first tree-based partitioning is quad tree partitioning,
wherein the second tree-based partitioning includes a plurality of types of tree-based partitioning,
wherein the second block partitioning information includes information specifying one of the plurality of the types of tree-based partitioning, and
wherein the second tree-based partitioning excludes the quad tree partitioning.