US 11,750,842 B2
Encoder, decoder, encoding method, and decoding method
Jing Ya Li, Singapore (SG); Che Wei Kuo, Singapore (SG); Chong Soon Lim, Singapore (SG); Chu Tong Wang, Singapore (SG); Han Boon Teo, Singapore (SG); Hai Wei Sun, Singapore (SG); Kiyofumi Abe, Osaka (JP); Takahiro Nishi, Nara (JP); Tadamasa Toma, Osaka (JP); and Yusuke Kato, Osaka (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 Apr. 19, 2022, as Appl. No. 17/724,298.
Application 17/724,298 is a continuation of application No. 17/723,324, filed on Apr. 18, 2022.
Application 17/723,324 is a continuation of application No. 17/116,137, filed on Dec. 9, 2020, granted, now 11,363,299.
Claims priority of provisional application 62/947,185, filed on Dec. 12, 2019.
Prior Publication US 2022/0248058 A1, Aug. 4, 2022
Int. Cl. H04N 19/66 (2014.01); H04N 19/122 (2014.01); H04N 19/176 (2014.01); H04N 19/103 (2014.01); H04N 19/96 (2014.01)
CPC H04N 19/66 (2014.11) [H04N 19/122 (2014.11); H04N 19/176 (2014.11); H04N 19/103 (2014.11); H04N 19/96 (2014.11)] 3 Claims
OG exemplary drawing
 
1. An encoder, comprising:
circuitry; and
memory connected to the circuitry,
wherein the circuitry, in operation,
determines a mode to be applied to a block from a plurality of merge modes based on a width of the block and a height of the block,
when the mode determined is a first mode, stores in a bitstream an index indicating a distance and an angle that define two partitions in the block, and encodes the block using the first mode,
disables the first mode and storing of the index in the bitstream when (i) the width is 64 pixels and the height is 8 pixels or (ii) the height is 64 pixels and the width is 8 pixels, and
applies the first mode to the block when (i) a ratio of the width to the height is smaller than 8 and (ii) a ratio of the height to the width is smaller than 8,
wherein the plurality of merge modes include a combined inter merge/intra prediction (CIIP) mode.