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US 2024/0267522 A1Published application
Affine mode signaling in video encoding and decoding
AssigneeInterDigital VC Holdings, Inc.
InventorsFranck Galpin, Fabrice Le Leannec, Philippe Bordes
Life of this patent
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Abstract
In general, encoding or decoding a picture part can involve a first CABAC probability model associated with a first flag indicating use of an affine mode and a second CABAC probability model associated with a second flag indicating use of either the affine mode or a second mode different from the affine mode, where the first and second CABAC probability models are different and are determined independently.
Claims20
A method, comprising:
- deriving a CABAC context for decoding a flag indicating use of an affine motion model for a video block;
- determining a probability model associated with the CABAC context depending on whether the affine motion model is used by the video block in a first inter mode or in a second inter mode distinct from the first inter mode;
- decoding the flag for the video block using the determined probability;
- and
- decoding the video block based on the flag.
2 more elements
An apparatus, comprising:
- one or more processors, wherein the one or more processors are configured for:
- deriving a CABAC context for decoding a flag indicating use of an affine motion model for a video block;
- determining a probability model associated with the CABAC context depending on whether the affine motion model is used by the video block in a first inter mode or in a second inter mode distinct from the first inter mode;
- decoding the flag for the video block using the determined probability;
- and
- decoding the video block based on the flag.
3 more elements
A method, comprising:
- deriving a CABAC context for encoding a flag indicating use of an affine motion model for a video block;
- determining a probability model associated with the CABAC context depending on whether the affine motion model is used by the video block in a first inter mode or in a second inter mode distinct from the first inter mode;
- encoding the flag for the video block using the determined probability;
- and
- encoding the video block based on the flag.
2 more elements
An apparatus, comprising:
- one or more processors, wherein the one or more processors are configured for:
- deriving a CABAC context for encoding a flag indicating use of an affine motion model for a video block;
- determining a probability model associated with the CABAC context depending on whether the affine motion model is used by the video block in a first inter mode or in a second inter mode distinct from the first inter mode;
- encoding the flag for the video block using the determined probability;
- and
- encoding the video block based on the flag.
3 more elements
Dependencies are inferred from the claim text.