Video encoding method and apparatus and video decoding method and apparatus using intra block copy prediction
AssigneeSamsung Electronics Co., Ltd.
InventorsSun-il LEE, Chan-yul PARK, Elena ALSHINA
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Abstract
Provided is a video decoding method including: determining a size of a block on which intra block copy prediction is to be performed, based on block size information obtained from a bitstream; comparing the determined size of the block with a size of a current block, and determining, based on a result of the comparing, whether the size of the current block falls within the determined size of the block; and performing intra block copy prediction on the current block when it is determined that the size of the current block falls within the determined size of the block.
Claims14
A video decoding method comprising:
- determining a size of a block on which intra block copy prediction is to be performed, based on block size information obtained from a bitstream;
- comparing the determined size of the block with a size of a current block, and determining, based on a result of the comparing, whether the size of the current block falls within the determined size of the block;
- and
- performing intra block copy prediction on the current block when it is determined that the size of the current block falls within the determined size of the block.
A video encoding method comprising:
- determining a size of a block on which intra block copy prediction is to be performed, and generating block size information based on the determined size;
- comparing the determined size of the block with a size of a current block, and determining, based on a result of the comparing, whether the size of the current block falls within the determined size of the block;
- performing intra block copy prediction on the current block when it is determined that the size of the current block falls within the determined size of the block;
- and
- generating a bitstream including the block size information, and residual data and motion vector data that are generated as a result of performing the intra block copy prediction.
A video decoding apparatus comprising:
- a block size determiner configured to determine a size of a block on which intra block copy prediction is to be performed, based on block size information obtained from a bitstream;
- an intra block copy determiner configured to compare the determined size of the block with a size of a current block, and determine, based on a result of the comparing, whether the size of the current block falls within the determined size of the block;
- and
- an intra block copy performer configured to perform intra block copy prediction on the current block when it is determined that the size of the current block falls within the determined size of the block.
Dependencies are inferred from the claim text.