US 12,225,194 B2
Method and device for signaling slice-related information
Hendry Hendry, Seoul (KR); Seethal Paluri, Seoul (KR); and Seunghwan Kim, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/779,984
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Nov. 26, 2020, PCT No. PCT/KR2020/016962
§ 371(c)(1), (2) Date May 25, 2022,
PCT Pub. No. WO2021/107638, PCT Pub. Date Jun. 3, 2021.
Claims priority of provisional application 62/941,666, filed on Nov. 27, 2019.
Prior Publication US 2022/0417510 A1, Dec. 29, 2022
Int. Cl. H04N 19/119 (2014.01); H04N 19/174 (2014.01); H04N 19/46 (2014.01)
CPC H04N 19/119 (2014.11) [H04N 19/174 (2014.11); H04N 19/46 (2014.11)] 3 Claims
OG exemplary drawing
 
1. An image decoding method performed by a decoding apparatus, the method comprising:
receiving image information including partitioning information for a current picture from a bitstream;
deriving a partitioning structure of the current picture including at least one slice based on the partitioning information for the current picture; and
decoding the current picture based on the partitioning structure,
wherein the image information includes a first flag related to the presence of subpicture information and a second flag related to whether each subpicture in the current picture includes only one slice,
wherein a value of the second flag is equal to 1 or 0,
wherein the value of the second flag being equal to 1 represents that the each subpicture in the current picture includes only one slice,
wherein a number of subpictures in the current picture is derived to be equal to 1 based on a value of the first flag being equal to 0,
wherein whether a number of slices included in the current picture is equal to 1 is determined by the value of the second flag based on the value of the first flag being equal to 0, and
wherein the image information includes information representing a number of slices in the current picture based on the second flag.