Method and apparatus for video intra prediction
AssigneeHuawei Technologies Co., Ltd.
InventorsAlexey Konstantinovich FILIPPOV, Vasily Alexeevich RUFITSKIY, Jianle Chen
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Abstract
A method of intra prediction of a block in a picture of a video is disclosed. The method comprises obtaining an intra prediction mode of the block; determining whether the intra prediction mode of the block is a wide-angle mode; filtering reference samples for the block based, at least in part, upon determining that the intra prediction mode of the block is the wide-angle mode; and generating predicted samples of the block based on filtered reference samples.
Claims19
A method of intra prediction of a block in a picture of a video, the method performed by a video encoder or a video decoder, the method comprising:
- obtaining an intra prediction mode (IntraPredMode) of the block;
- determining the intra prediction mode of the block is a wide-angle mode;
- filtering reference samples for the block based, at least in part, upon determining that the intra prediction mode of the block is the wide-angle mode and generating filtered reference samples of the block;
- interpolating the filtered reference samples using an interpolating filter to generate predicted samples of the block, the interpolating filter comprising a unified intra/inter filter.
An apparatus for intra prediction of a block of a picture in a video, the apparatus comprises:
- a non-transitory computer-readable storage medium containing instructions;
- and
- one or more processors in communication with the non-transitory computer-readable storage medium and upon execution of the instructions, configured to:
- obtain an intra prediction mode (IntraPredMode) of the block;
- determine the intra prediction mode of the block is a wide-angle mode;
- filter reference samples for the block based, at least in part, upon determining that the intra prediction mode of the block is the wide-angle mode and generate filtered reference samples of the block;
- interpolate the filtered reference samples using an interpolating filter to generate predicted samples of the block, the interpolating filter comprising a unified intra/inter filter.
A non-transitory storage medium comprising a bitstream of a video generated by an encoder or processed by a decoder, the bitstream of the video comprising:
- first information representing an intra prediction mode of a block of the video;
- and
- second information representing a residual of the block based on predicted samples of the block, the predicted samples of the block being generated using filtered reference samples for the block, the filtered reference samples being generated by filtering reference samples for the block based, at least in part, upon the intra prediction mode of the block being a wide-angle mode, and an interpolating filter used for the interpolating comprising a unified intra/inter filter.
Dependencies are inferred from the claim text.