Image decoding device, image decoding method, and program
AssigneeKddi Corporation
InventorsKyohei UNNO, Yoshitaka KIDANI, Kei KAWAMURA, Sei NAITO
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Abstract
An image decoding device includes: a prediction signal generation unit that generates a prediction signal by intra prediction, wherein in a block to which intra sub-partitions are applied, the prediction signal generation unit refers to a pixel of a decoded block adjacent to the block when generating prediction signals of all sub-blocks in the block.
Claims3
An image decoding device comprising:
- a prediction signal generation unit that generates a prediction signal by intra prediction, wherein
- in a block to which intra sub-partitions are applied, the prediction signal generation unit:
- refers to a pixel of a decoded block adjacent to the block when generating prediction signals of all sub-blocks in the block, in a case where widths of the sub-blocks are less than a first threshold value, and
- refers to a decoded pixel of the sub-block processed immediately, in a case where widths of the sub-blocks are equal to or larger than the first threshold value.
An image decoding method comprising:
- generating a prediction signal by intra prediction, wherein
- in the generating, in a block to which intra sub-partitions are applied,
- a pixel of a decoded block adjacent to the block is referred to, when generating prediction signals of all sub-blocks in the block, in a case where widths of the sub-blocks are less than a first threshold value, and
- a decoded pixel of the sub-block processed immediately is referred to, in a case where widths of the sub-blocks are equal to or larger than the first threshold value.
A program stored on a non-transitory computer-readable medium for causing a computer to function as an image decoding device, the image decoding device comprising a prediction signal generation unit that generates a prediction signal by intra prediction, wherein
- in a block to which intra sub-partitions are applied, the prediction signal generation unit:
- refers to a pixel of a decoded block adjacent to the block when generating prediction signals of all sub-blocks in the block, in a case where widths of the sub-blocks are less than a first threshold value, and
- refers to a decoded pixel of the sub-block processed immediately, in a case where widths of the sub-blocks are equal to or larger than the first threshold value.
Dependencies are inferred from the claim text.