Encoder, decoder, encoding method, and decoding method
AssigneePanasonic Intellectual Property Corporation of America
InventorTatsuhiko Ikeda
Life of this patent
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Abstract
An encoder includes processing circuitry, a block memory, and a frame memory. The processing circuitry defines at least one parameter for each of plural types of segment_ids, splits an image into blocks, assigns, to each of the blocks, segment_id according to a type of the block, among the plural types of segment_ids, and sequentially encodes the blocks. In encoding the blocks, the processing circuitry identifies segment_id of a current block to be encoded, and encodes the current block using the at least one parameter defined for identified segment_id. The at least one parameter includes seg_context_idx for identifying probability information associated with context used in context-based adaptive binary arithmetic coding (CABAC).
Claims6
An encoder, comprising:
- processing circuitry;
- and
- a memory coupled to the processing circuitry, wherein
- using the memory, the processing circuitry
- splits an image into blocks,
- identifies segment information of a current block to be encoded among the blocks, and
- encodes the current block using a parameter regarding probability information for entropy encoding, the parameter corresponding to the segment information,
- the processing circuitry further includes the parameter in a picture parameter set, and
- the image split by the processing circuitry is a picture.
A decoder, comprising:
- processing circuitry;
- and
- a memory coupled to the processing circuitry, wherein
- using the memory, the processing circuitry
- identifies segment information of a current block to be decoded among blocks included in an image, and
- decodes the current block using a parameter regarding probability information for entropy decoding, the parameter corresponding to the segment information,
- the processing circuitry further includes the parameter in a picture parameter set, and
- the image is a picture.
An encoding method, comprising:
- splitting an image into blocks,
- identifying segment information of a current block to be encoded among the blocks, and
- encoding the current block using a parameter regarding probability information for entropy encoding, the parameter corresponding to the segment information, wherein
- the parameter is included in a picture parameter set, and
- the image is a picture.
A decoding method, comprising:
- identifying segment information of a current block to be decoded among blocks included in an image, and
- decoding the current block using a parameter regarding probability information for entropy decoding, the parameter corresponding to the segment information, wherein
- the parameter is included in a picture parameter set, and
- the image is a picture.
Dependencies are inferred from the claim text.