US 12,088,849 B2
Encoder, decoder, encoding method, and decoding method
Virginie Drugeon, Darmstadt (DE); Tadamasa Toma, Osaka (JP); Takahiro Nishi, Nara (JP); Kiyofumi Abe, 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 Jun. 6, 2022, as Appl. No. 17/832,973.
Application 17/832,973 is a continuation of application No. PCT/JP2020/045744, filed on Dec. 8, 2020.
Claims priority of provisional application 62/947,283, filed on Dec. 12, 2019.
Prior Publication US 2022/0321920 A1, Oct. 6, 2022
Int. Cl. H04N 19/00 (2014.01); H04N 19/132 (2014.01); H04N 19/167 (2014.01); H04N 19/186 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/70 (2014.11) [H04N 19/132 (2014.11); H04N 19/167 (2014.11); H04N 19/186 (2014.11)] 2 Claims
OG exemplary drawing
 
1. An encoder comprising:
circuitry; and
memory coupled to the circuitry, wherein
in operation, the circuitry:
determines whether or not a current video to be processed is a progressive video;
when it is determined that the current video is a progressive video, encodes one syntax element indicating a chroma location type into a bitstream, the chroma location type being information indicating locations of chroma samples relative to luma samples for a frame included in the current video; and
when it is determined that the current video is not a progressive video, encodes two syntax elements into the bitstream, each of the two syntax elements indicating the chroma location type for a different one of fields of two types included in the current video.