US 12,348,726 B2
Method and device for signaling video information applicable at picture level or slice level
Hendry Hendry, Seoul (KR); and Seunghwan Kim, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/784,322
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Dec. 10, 2020, PCT No. PCT/KR2020/018067
§ 371(c)(1), (2) Date Jun. 10, 2022,
PCT Pub. No. WO2021/118262, PCT Pub. Date Jun. 17, 2021.
Claims priority of provisional application 62/947,532, filed on Dec. 12, 2019.
Prior Publication US 2023/0057053 A1, Feb. 23, 2023
Int. Cl. H04N 19/136 (2014.01); H04N 19/176 (2014.01); H04N 19/46 (2014.01)
CPC H04N 19/136 (2014.11) [H04N 19/176 (2014.11); H04N 19/46 (2014.11)] 4 Claims
OG exemplary drawing
 
1. An image decoding method performed by a decoding apparatus, the method comprising:
obtaining indication information related to whether deblocking filter information is present in a picture header or a slice header;
determining in which header among the picture header or the slice header the deblocking filter information is present based on the indication information;
parsing the deblocking filter information from the picture header or the slice header based on the determination; and
decoding a current block based on the deblocking filter information,
wherein the indication information is included in a Picture Parameter Set (PPS),
wherein the picture header includes information applies commonly to all slices in a picture,
wherein the PPS includes information applies commonly to one or more pictures, and
wherein a syntax level in which the indication information is included and a syntax level in which the deblocking filter information is included is different.