US 12,323,627 B2
High level syntax for video coding and decoding
Guillaume Laroche, Saint Aubin d'Aubigné (FR); Naël Ouedraogo, Val d'Anast (FR); and Patrice Onno, Rennes (FR)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Appl. No. 17/913,114
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
PCT Filed Mar. 17, 2021, PCT No. PCT/EP2021/056870
§ 371(c)(1), (2) Date Sep. 20, 2022,
PCT Pub. No. WO2021/185929, PCT Pub. Date Sep. 23, 2021.
Claims priority of application No. 2004095 (GB), filed on Mar. 20, 2020.
Prior Publication US 2023/0115242 A1, Apr. 13, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/70 (2014.01); H04N 19/105 (2014.01); H04N 19/156 (2014.01); H04N 19/157 (2014.01); H04N 19/172 (2014.01); H04N 19/174 (2014.01); H04N 19/186 (2014.01); H04N 19/44 (2014.01)
CPC H04N 19/70 (2014.11) [H04N 19/105 (2014.11); H04N 19/156 (2014.11); H04N 19/157 (2014.11); H04N 19/172 (2014.11); H04N 19/174 (2014.11); H04N 19/186 (2014.11); H04N 19/44 (2014.11)] 5 Claims
OG exemplary drawing
 
1. A method of decoding video data from a bitstream,
wherein the bitstream comprises a picture header comprising syntax elements to be used when decoding one or more slices, and a slice header comprising syntax elements to be used when decoding a slice, the method comprising:
parsing syntax elements, and
decoding said video data from said bitstream using said parsed syntax elements,
wherein a first flag relating to use of a scaling list for a slice is parsed from the slice header depending on a value of a second flag indicating whether the picture header is present in the slice header, wherein parsing of the first flag is omitted if the second flag indicates that the picture header is present in the slice header, and
wherein a third flag relating to availability of luma mapping with chroma scaling (LMCS) is parsed from the slice header depending on the value of the second flag, and parsing of the third flag is omitted if the second flag indicates that the picture header is present in the slice header.