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US 2019/0356913 A1Published application
Apparatus and method for video encoding or decoding
AssigneeSK Telecom Co., Ltd.
InventorsJeong-yeon LIM, Sun-young LEE, Se-hoon SON, Jae-seob SHIN
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Abstract
The present disclosure describes techniques that can be considered in intra-predicting diagonal edges that may be present in a block to be encoded. In the new intra mode proposed in the present disclosure, a prediction area is divided into two areas in the diagonal direction, and the areas can be predicted in different directions.
Claims12
A method for decoding video data, comprising:
- decoding syntax elements defining an intra mode and a residual block of a current block of the video data from an encoded bitstream;
- determining the intra mode of the current block from among a plurality of available intra modes based on the decoded syntax elements defining the intra mode of the current block, wherein the plurality of available intra modes comprises a plurality of directional modes, a plurality of non-directional modes, and a plurality of split intra modes, wherein, in the split intra modes, respective one of the plurality of directional modes and the plurality of non-directional modes is individually applied to each of two areas divided by diagonally splitting the current block;
- determining a prediction block for the current block based on the determined intra mode of the current block;
- and
- reconstructing the current block based on the prediction block and the residual block.
2 more elements
A method for decoding video data, comprising:
- decoding syntax elements defining an intra mode and a residual block of a current block of the video data from an encoded bitstream;
- determining the intra mode of the current block from among a plurality of available intra modes based on the decoded syntax elements defining the intra mode of the current block, wherein the plurality of available intra modes comprises a plurality of directional modes, a plurality of non-directional modes, and one split intra mode, wherein, in the split intra mode, respective one of the plurality of directional modes and the plurality of non-directional modes is individually applied to each of two areas divided by diagonally splitting the current block;
- determining a prediction block for the current block based on the determined intra mode of the current block;
- and
- reconstructing the current block based on the prediction block and the residual block.
2 more elements
An apparatus for decoding video data, comprising:
- a memory;
- and
- one or more processors,
- wherein the one or more processors are configured to perform operations of:
- decoding syntax elements defining an intra mode and a residual block of a current block of the video data from an encoded bitstream;
- determining the intra mode of the current block from among a plurality of available intra modes based on the decoded syntax elements defining the intra mode of the current block, wherein the plurality of available intra modes comprises a plurality of directional modes, a plurality of non-directional modes, and at least one split intra mode, wherein, in the split intra modes, respective one of the plurality of directional modes and the plurality of non-directional modes is individually applied to each of two areas divided by diagonally splitting the current block;
- determining a prediction block for the current block based on the determined intra mode of the current block;
- and
- reconstructing the current block based on the prediction block and the residual block.
6 more elements
Dependencies are inferred from the claim text.