US 12,256,106 B2
Image/video encoding/decoding method and device
Hendry Hendry, Seoul (KR); Seethal Paluri, Seoul (KR); and Seunghwan Kim, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/780,812
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Nov. 26, 2020, PCT No. PCT/KR2020/016886
§ 371(c)(1), (2) Date Dec. 19, 2022,
PCT Pub. No. WO2021/107623, PCT Pub. Date Jun. 3, 2021.
Claims priority of provisional application 62/941,861, filed on Nov. 28, 2019.
Prior Publication US 2023/0156228 A1, May 18, 2023
Int. Cl. H04N 19/107 (2014.01); H04N 19/119 (2014.01); H04N 19/124 (2014.01); H04N 19/136 (2014.01); H04N 19/174 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/70 (2014.11) [H04N 19/107 (2014.11); H04N 19/119 (2014.11); H04N 19/124 (2014.11); H04N 19/136 (2014.11); H04N 19/174 (2014.11)] 7 Claims
OG exemplary drawing
 
1. A video decoding method performed by a video decoding apparatus, the method comprising:
parsing number information related to a number of slices of which heights are explicitly signaled within a tile of a current picture from a bitstream;
parsing height information related to heights of the slices of which heights are explicitly signaled from the bitstream based on the number information;
based on the number of slices of which heights are explicitly signaled being equal to n, deriving heights of a 0-th slice to an (n−1)-th slice within the tile based on the height information;
deriving a total number of slices within the tile; and
decoding the current picture based on the slices of the current picture,
wherein the deriving the total number of slices within the tile comprises
obtaining a remaining height of the tile that is calculated by subtracting the heights of the slices starting from the 0-th slice to the (n−1)-th slice from a total height of the tile;
obtaining intermediate number that is equal to n;
comparing the remaining height of the tile with a uniform height of a slice within the tile;
increasing the intermediate number by 1 based on the remaining height of the tile being smaller than the uniform height and being larger than 0; and
deriving the total number of slices within the tile as the increased intermediate number.