Method for coding and method for reconstruction of a block of an image
AssigneeThomson Licensing
InventorsPhilippe Bordes, Dominique Thoreau, Jerome Vieron, Edouard Francois
Life of this patent
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Abstract
A method for coding a current block of an image is disclosed that comprises: determining, for the current block, current coding parameters, determining, for at least one neighbouring block of the current block previously coded and reconstructed, a neighbouring residual block from current coding parameters, and coding the current block with the current coding parameters according to the neighbouring residual block.
Claims17
A method of coding, in a video encoder, a current block of an image comprising:
- determining, for said current block, current coding parameters comprising at least a prediction mode,
- determining, for at least one neighbouring block of the current block, a neighbouring residual block from said current coding parameters (Pc),
- determining for said current block a transform according to said neighbouring residual block;
- coding said current block with said transform.
4-7. (canceled)
A method of decoding, in a video decoder, a bitstream for reconstructing a current block of an image comprising:
- decoding from said bitstream, for said current block, current coding parameters comprising at least a prediction mode,
- determining, for at least one neighbouring block of the current block, a neighbouring residual block from said current coding parameters,
- determining for said current block a transform according to said neighbouring residual block, and
- reconstructing said current block with said transform.
9-10. (canceled)
A coding device for coding a current block of an image comprising:
- a module configured to determine, for said current block, current coding parameters comprising at least a prediction mode,
- a module configured to determine, for at least one neighbouring block of the current block, a neighbouring residual block from said current coding parameters,
- a module configured to determine for said current block a transform according to said neighbouring residual block;
- and
- a module configured to code said current block with said transform.
A decoding device of a bitstream for reconstructing a current block of an image comprising:
- a module configured to decode from said bistream, for said current block, current coding parameters comprising at least a prediction mode,
- a module configured to determine, for at least one neighbouring block of the current block, a neighbouring residual block from said current coding parameters,
- a module configured to determine for said current block a transform according to said neighbouring residual block;
- and
- a module configured to reconstruct said current block with said transform.
Dependencies are inferred from the claim text.