Video encoding/decoding method and apparatus using bi-directional intra prediction mode
AssigneesHyundai Motor Company, Kia Corporation
InventorsJin Heo, Seung Wook Park
Life of this patent
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Abstract
A method for decoding a video includes generating second reference samples based on an intra-prediction mode of a current block and first reference samples. The method for decoding the video also includes generating prediction values of samples in the current block, by using values of the second reference samples and values of the first reference samples. The method for decoding the video further includes generating a prediction block of the current block, based on the prediction values of the samples in the current block.
Claims18
A video decoding method, comprising:
- generating second reference samples based on an intra-prediction mode of a current block and first reference samples adjacent to left and top sides of the current block;
- correcting values of the second reference samples based on difference values between the first reference samples and at least one of a sample adjacent to a bottom-left side of the current block or a sample adjacent to a top right side of the current block;
- generating prediction values of current samples in the current block by using values of the first reference samples and the values of the second reference samples;
- and
- generating a prediction block of the current block based on the prediction values of the current samples in the current block.
A video encoding method, comprising:
- generating second reference samples based on an intra-prediction mode of a current block and first reference samples adjacent to left and top sides of the current block;
- correcting values of the second reference samples based on difference values between the first reference samples and at least one of a sample adjacent to a bottom-left side of the current block, or a sample adjacent to a top right side of the current block,
- generating prediction values of current samples in the current block by using values of the first reference samples and the values of a second reference samples;
- and
- generating a prediction block of the current block based on the prediction values of the current samples in the current block.
A method for transmitting a bitstream associated with video data, the method comprising:
- generating the bitstream by encoding the video data;
- and
- transmitting the bitstream to a video decoding apparatus,
- wherein generating the bitstream comprises:
- generating second reference samples based on an intra-prediction mode of a current block and first reference samples adjacent to left and top sides of the current block;
- correcting values of the second reference samples based on difference values between the first reference samples and at least one of a sample adjacent to a bottom-left side of the current block, or a sample adjacent to a top right side of the current block;
- generating prediction values of current samples in the current block by using values of the first reference samples and the values of the second reference samples;
- and
- generating a prediction block of the current block based on the prediction values of the current samples in the current block.
Dependencies are inferred from the claim text.