US 12,225,195 B2
Video coding method and device, video decoding method and device
Min-soo Park, Seoul (KR); and Min-woo Park, Yongin-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on May 24, 2023, as Appl. No. 18/322,826.
Application 18/322,826 is a continuation of application No. 17/521,266, filed on Nov. 8, 2021, granted, now 11,689,721.
Application 17/521,266 is a continuation of application No. 16/622,043, granted, now 11,196,994, issued on Dec. 7, 2021, previously published as PCT/KR2018/003760, filed on Mar. 30, 2018.
Claims priority of provisional application 62/529,163, filed on Jul. 6, 2017.
Prior Publication US 2023/0300332 A1, Sep. 21, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/119 (2014.01); H04N 19/13 (2014.01); H04N 19/14 (2014.01)
CPC H04N 19/119 (2014.11) [H04N 19/13 (2014.11); H04N 19/14 (2014.11)] 3 Claims
OG exemplary drawing
 
1. An image decoding method comprising:
obtaining, from a bitstream, first information indicating a split type of a coding unit between a quad split type and a non-quad split type including a tri split type;
when it is determined that the split type of the coding unit is the non-quad split type using the first information, obtaining, from the bitstream, second information about a maximum size of a coding unit with a width and a height ratio equal to 1:4;
determining the maximum size of the coding unit with the width and the height ratio equal to 1:4 using the second information;
determining a minimum size of the coding unit with the width and the height ratio equal to 1:4;
when it is determined that the coding unit is allowable to be split into three lower coding units using the maximum size of the coding unit with the width and the height ratio equal to 1:4 and the minimum size of the coding unit with the width and the height ratio equal to 1:4, dividing a longer side between the width and the height of the coding unit in three to split the coding unit into the three lower coding units and decode the three lower coding units; and
when it is determined that the split type of the coding unit is the quad split type using the first information, splitting the coding unit into four lower coding units and decode the four lower coding units.