US 12,261,997 B2
Picture coding device, picture coding method, picture coding program, picture decoding device, picture decoding method, and picture decoding program
Hideki Takehara, Yokohama (JP); Hiroya Nakamura, Yokohama (JP); Satoru Sakazume, Yokohama (JP); Shigeru Fukushima, Yokohama (JP); Toru Kumakura, Yokohama (JP); and Hiroyuki Kurashige, Yokohama (JP)
Assigned to Godo Kaisha IP Bridge1, Tokyo (JP)
Filed by Godo Kaisha IP Bridge1, Tokyo (JP)
Filed on Sep. 8, 2021, as Appl. No. 17/468,763.
Application 17/468,763 is a continuation of application No. PCT/JP2020/009772, filed on Mar. 6, 2020.
Claims priority of application No. 2019-042580 (JP), filed on Mar. 8, 2019.
Prior Publication US 2022/0070444 A1, Mar. 3, 2022
Int. Cl. H04N 19/82 (2014.01); H04N 19/105 (2014.01); H04N 19/159 (2014.01); H04N 19/172 (2014.01)
CPC H04N 19/105 (2014.11) [H04N 19/159 (2014.11); H04N 19/172 (2014.11)] 6 Claims
OG exemplary drawing
 
1. A picture coding device using a merge mode, the picture coding device comprising:
a normal merging candidate list constructor structured to construct a normal merging candidate list including normal merging candidates;
a normal merging candidate selector structured to select a normal merging candidate being uni-prediction or bi-prediction from the normal merging candidate list based on a merge index; and
a triangle merging candidate selector structured to select a first triangle merging candidate being uni-prediction from the normal merging candidate list based on a first triangle merge index and select a second triangle merging candidate being uni-prediction from the normal merging candidate list based on a second triangle merge index,
wherein
the first triangle merging candidate is selected with priority on the merging candidate in L0 motion information list over the merging candidate in L1 motion information list,
the second triangle merging candidate is selected with priority on the merging candidate in L1 motion information list over the merging candidate in L0 motion information list, and
the maximum number of the first triangle merge index is different from the maximum number of the second triangle merge index.