US 11,856,186 B2
Encoding and decoding information about a motion information predictor
Guillaume Laroche, Saint Aubin d'Aubigne (FR); Christophe Gisquet, Acigné (FR); Patrice Onno, Rennes (FR); and Jonathan Taquet, Talensac (FR)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Appl. No. 17/415,627
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
PCT Filed Nov. 19, 2019, PCT No. PCT/EP2019/081827
§ 371(c)(1), (2) Date Jun. 17, 2021,
PCT Pub. No. WO2020/126262, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 1820902 (GB), filed on Dec. 20, 2018.
Prior Publication US 2022/0070439 A1, Mar. 3, 2022
Int. Cl. H04N 19/105 (2014.01); H04N 19/109 (2014.01); H04N 19/176 (2014.01); H04N 19/46 (2014.01); H04N 19/52 (2014.01); H04N 19/13 (2014.01)
CPC H04N 19/105 (2014.11) [H04N 19/109 (2014.11); H04N 19/176 (2014.11); H04N 19/46 (2014.11); H04N 19/52 (2014.11); H04N 19/13 (2014.11)] 16 Claims
OG exemplary drawing
 
1. A method of encoding information about a motion information predictor, comprising:
selecting one of a plurality of motion information predictor candidates; and
encoding one of indexes including a first index and a second index for identifying the selected motion information predictor candidate, using Context-adaptive binary arithmetic coding (CABAC) coding, wherein the first index is used for a first merge mode by which a block predictor is obtained from a first block predictor and a second block predictor partitioned by a boundary, and the second index is used for a second merge mode, different from the first merge mode, of inter prediction mode,
wherein the CABAC coding of a first bit of the first index for the first merge mode uses the same context variable as the CABAC coding of a first bit of the second index for the second merge mode of inter prediction, and wherein all bits, except for the first bit of the first index, of the first index are bypass coded, and all bits, except for the first bit of the second index, of the second index are bypass coded.