US 12,088,802 B2
Encoder, decoder, encoding method, and decoding method
Ryuichi Kanoh, Osaka (JP); Tadamasa Toma, Osaka (JP); Kiyofumi Abe, Osaka (JP); and Takahiro Nishi, Nara (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA, Torrance, CA (US)
Filed by Panasonic Intellectual Property Corporation of America, Torrance, CA (US)
Filed on Jul. 29, 2022, as Appl. No. 17/876,925.
Application 17/876,925 is a continuation of application No. 16/942,081, filed on Jul. 29, 2020, granted, now 11,438,588.
Application 16/942,081 is a continuation of application No. PCT/JP2019/003039, filed on Jan. 29, 2019.
Claims priority of provisional application 62/623,822, filed on Jan. 30, 2018.
Prior Publication US 2022/0385902 A1, Dec. 1, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/119 (2014.01); H04N 19/176 (2014.01)
CPC H04N 19/119 (2014.11) [H04N 19/176 (2014.11)] 2 Claims
OG exemplary drawing
 
1. An encoder, comprising:
circuitry; and
memory coupled to the circuitry,
wherein the circuitry, in operation:
determines whether a shape of a current chroma block to be split in an image satisfies a first condition;
generates one or more second candidates for a block partitioning method by eliminating one or more predetermined candidates from a plurality of first candidates for a block partitioning method when the shape of the current chroma block satisfies the first condition;
selects a block partitioning method from among the one or more second candidates; and
splits the current chroma block according to the block partitioning method selected, and
the plurality of first candidates include at least a ternary splitting in vertical direction and the one or more second candidates exclude the ternary splitting in vertical direction.