US 12,425,629 B2
Image coding method on basis of entry point-related information in video or image coding system
Hendry Hendry, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Filed by LG Electronics Inc., Seoul (KR)
Filed on Jun. 17, 2024, as Appl. No. 18/745,631.
Application 18/745,631 is a continuation of application No. 17/769,903, granted, now 12,015,796, previously published as PCT/KR2020/013096, filed on Sep. 25, 2020.
Claims priority of provisional application 62/935,623, filed on Nov. 14, 2019.
Prior Publication US 2024/0340436 A1, Oct. 10, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/13 (2014.01); H04N 19/119 (2014.01); H04N 19/136 (2014.01); H04N 19/172 (2014.01); H04N 19/174 (2014.01); H04N 19/30 (2014.01); H04N 19/463 (2014.01)
CPC H04N 19/463 (2014.11) [H04N 19/119 (2014.11); H04N 19/13 (2014.11); H04N 19/136 (2014.11); H04N 19/172 (2014.11); H04N 19/174 (2014.11); H04N 19/30 (2014.11)] 3 Claims
OG exemplary drawing
 
1. An image decoding method performed by a decoding apparatus, the method comprising:
obtaining image information through a bitstream, wherein the image information includes entry point related information;
deriving at least one entry point in a current picture based on the entry point related information; and
decoding the current picture based on the at least one entry point,
wherein the entry point related information includes offset length information and entry point offset information, the offset length information is related to a number of bits of the entry point offset information,
wherein the at least one entry point is derived based on the offset length information and the entry point offset information,
wherein the entry point related information includes an entry point offset present flag related to whether entry point offsets are signaled,
wherein based on a case where a value of the entry point offset present flag is 1, a number of entry points in a current slice is derived,
wherein based on a case where the number of entry points is greater than 0, the offset length information and the entry point offset information are included in a slice header for the current slice,
wherein the entry point offset present flag is included in a sequence parameter set (SPS),
wherein the entry point related information includes an entropy coding synchronization enabled flag related to whether a synchronization process for context variables is invoked, and
wherein the entropy coding synchronization enabled flag is included in the SPS.