US 11,758,172 B2
Image encoding/decoding method and device for signaling information related to sub picture and picture header, and method for transmitting bitstream
Hendry Hendry, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Jul. 12, 2022, as Appl. No. 17/863,215.
Application 17/863,215 is a continuation of application No. PCT/KR2021/000515, filed on Jan. 14, 2021.
Claims priority of provisional application 62/961,188, filed on Jan. 14, 2020.
Prior Publication US 2022/0394286 A1, Dec. 8, 2022
Int. Cl. H04N 19/46 (2014.01); H04N 19/174 (2014.01); H04N 19/169 (2014.01)
CPC H04N 19/46 (2014.11) [H04N 19/174 (2014.11); H04N 19/188 (2014.11)] 15 Claims
OG exemplary drawing
 
1. An image decoding method comprising:
acquiring a first flag specifying whether information on a subpicture is present in a bitstream;
acquiring a second flag specifying whether picture header information is present in a slice header; and
decoding the bitstream based on the first flag and the second flag,
wherein, based on the first flag specifying that the information on the subpicture is present in the bitstream, the second flag is restricted to have a value specifying that the picture header information is not present in the slice header.