US 11,871,028 B2
Encoder, decoder, encoding method, and decoding method
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 Jul. 15, 2021, as Appl. No. 17/376,682.
Application 17/376,682 is a continuation of application No. PCT/JP2020/004530, filed on Feb. 6, 2020.
Claims priority of provisional application 62/802,950, filed on Feb. 8, 2019.
Prior Publication US 2021/0344948 A1, Nov. 4, 2021
Int. Cl. H04N 19/52 (2014.01); H04N 19/109 (2014.01); H04N 19/139 (2014.01); H04N 19/176 (2014.01); H04N 19/577 (2014.01)
CPC H04N 19/52 (2014.11) [H04N 19/109 (2014.11); H04N 19/139 (2014.11); H04N 19/176 (2014.11); H04N 19/577 (2014.11)] 2 Claims
OG exemplary drawing
 
1. An encoder comprising:
circuitry; and
memory coupled to the circuitry, wherein
in operation, the circuitry:
generates, in an inter prediction mode, a first prediction image of a current block to be processed, based on a derived motion vector; and
generates a final prediction image of the current block by applying an update process to the first prediction image,
candidates for the update process include a first process and a second process,
the first process is a bi-directional optical flow (BDOF) process,
the second process is a process of mixing the first prediction image with a second prediction image generated in intra prediction for the current block, and
in the applying of the update process, the first process and the second process are mutually exclusively applied.