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US 11,240,530 B2Granted
Encoder, decoder, encoding method, and decoding method
AssigneePanasonic Intellectual Property Corporation of America
InventorsTakashi Hashimoto, Kiyofumi Abe, Tadamasa Toma, Takahiro Nishi, Ryuichi Kanoh
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Abstract
An encoder includes: circuitry; and memory, in which using the memory, the circuitry, in affine motion compensation prediction in inter prediction for a current block, places a limit on a range within which motion estimation or motion compensation is performed, and performs the motion compensation for the current block.
Claims2
An encoder comprising:
- circuitry;
- and
- memory, wherein
- using the memory, the circuitry,
- in affine motion compensation prediction in inter prediction for a current block, places a limit on a range within which motion estimation or motion compensation is performed, and performs the motion compensation for the current block,
- the limit on the range within which the motion estimation or the motion compensation is performed is changed in accordance with a type of a reference picture, and
- wherein the range within which the motion estimation or the motion compensation is performed when the type of the reference picture is a P picture is different from the range within which the motion estimation or the motion compensation is performed when the type of the reference picture is a B picture.
4 more elements
An encoding method comprising:
- in affine motion compensation prediction in inter prediction for a current block, placing a limit on a range within which motion estimation or motion compensation is performed, and performing the motion compensation for the current block, wherein
- the limit on the range within which the motion estimation or the motion compensation is performed is changed in accordance with a type of a reference picture, and
- wherein the range within which the motion estimation or the motion compensation is performed when the type of the reference picture is a P picture is different from the range within which the motion estimation or the motion compensation is performed when the type of the reference picture is a B picture.
Dependencies are inferred from the claim text.