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US 2018/0124397 A1Published application
Method and apparatus for encoding/decoding a video signal
AssigneeLG Electronics Inc.
InventorsSunmi YOO, Jin HEO, Junghak NAM, Jaehyun LIM, Yongjoon JEON
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Abstract
A method for decoding a video signal includes obtaining block partition information of a current coding unit; deriving an intra prediction mode of a partition block based on the block partition information; and generating a prediction signal of the partition block based on the derived intra prediction mode, and the intra prediction mode of the partition block is defined by a limited number based on a prediction direction.
Claims14
A method of decoding a video signal, comprising:
- obtaining block partition information of a current coding unit;
- deriving an intra prediction mode of a partition block based on the block partition information;
- and
- generating a prediction signal of the partition block based on the derived intra prediction mode,
- wherein the intra prediction mode of the partition block is defined by a limited number based on a prediction direction.
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A method for encoding a video signal, comprising:
- performing an intra prediction with respect to a first prediction unit of a current coding unit;
- determining an optimal intra prediction mode with respect to the first prediction unit;
- checking a size of the current coding unit;
- performing an intra prediction with respect to a second prediction unit when the current coding unit corresponds to a predetermined size;
- determining an optimal intra prediction mode with respect to the second prediction unit;
- determining a size of an optimal prediction unit based on a rate-distortion cost of the first prediction unit and the second prediction unit;
- and
- generating a prediction block based on the size of the optimal prediction unit.
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Dependencies are inferred from the claim text.