US 11,876,992 B2
Image decoder and decoding method
Chong Soon Lim, Singapore (SG); Hai Wei Sun, Singapore (SG); Sughosh Pavan Shashidhar, Singapore (SG); Ru Ling Liao, Singapore (SG); Han Boon Teo, Singapore (SG); Takahiro Nishi, Nara (JP); Ryuichi Kanoh, Osaka (JP); and Tadamasa Toma, 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 May 12, 2022, as Appl. No. 17/743,348.
Application 17/743,348 is a continuation of application No. 16/587,961, filed on Sep. 30, 2019, granted, now 11,368,703.
Application 16/587,961 is a continuation of application No. PCT/JP2018/012690, filed on Mar. 28, 2018.
Claims priority of provisional application 62/479,586, filed on Mar. 31, 2017.
Prior Publication US 2022/0279197 A1, Sep. 1, 2022
Int. Cl. H04N 19/44 (2014.01); H04N 19/119 (2014.01); H04N 19/124 (2014.01); H04N 19/13 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01)
CPC H04N 19/44 (2014.11) [H04N 19/119 (2014.11); H04N 19/124 (2014.11); H04N 19/13 (2014.11); H04N 19/159 (2014.11); H04N 19/176 (2014.11)] 3 Claims
OG exemplary drawing
 
1. A non-transitory computer readable medium storing a bitstream, the bitstream including instructions and parameters which, when loaded to an image decoder, cause the image decoder to perform a process including: and
parsing an encoded bitstream to obtain a first parameter and a second parameter;
deriving a partition mode based on the first and second parameters;
wherein,
responsive to the derived partition mode being a first partition mode, the process includes executing the first partition mode including:
splitting a block of a picture, in a vertical direction or in a horizontal direction, into a plurality of first blocks, the plurality of first blocks including a N×2N block sized N pixels by 2N pixels;
splitting the N×2N block, wherein a ternary split is allowed to split the N×2N block in the vertical direction, which is a direction along the 2N pixels, into a plurality of sub blocks including at least one sub block sized N/4×2N, while a binary split is not allowed to split the N×2N block in the vertical direction into two sub blocks that are equally sized N/2×2N; and
decoding the plurality of sub blocks.