Method, apparatus, and medium for video processing
AssigneesBeijing Bytedance Network Technology Co., Ltd., Bytedance Inc.
InventorsYang Wang, Kai Zhang, Li Zhang
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Abstract
Embodiments of the present disclosure provide a method for video processing. The method comprises: determining, during a conversion between a current chroma block of a video and a bitstream of the video, a set of candidate intra prediction modes (IPMs) for the current chroma block based on a decoder-side derivation of intra prediction mode (DDIPM); constructing an IPM candidate list for the current chroma block based on the set of candidate IPMs; and performing the conversion based on the IPM candidate list. Thereby, the proposed method can advantageously improve coding efficiency and reduce the coding bits while maintaining the coding quality.
Claims20
A method for video processing, comprising:
- determining, during a conversion between a current chroma block of a video and a bitstream of the video, a set of candidate intra prediction modes (IPMs) for the current chroma block based on a decoder-side derivation of intra prediction mode (DDIPM);
- constructing an IPM candidate list for the current chroma block based on the set of candidate IPMs;
- and
- performing the conversion based on the IPM candidate list.
An apparatus for processing video data comprising a processor and a non-transitory memory with instructions thereon, wherein the instructions upon execution by the processor, cause the processor to:
- determine, during a conversion between a current chroma block of a video and a bitstream of the video, a set of candidate intra prediction modes (IPMs) for the current chroma block based on a decoder-side derivation of intra prediction mode (DDIPM);
- construct an IPM candidate list for the current chroma block based on the set of candidate IPMs;
- and
- perform the conversion based on the IPM candidate list.
A non-transitory computer-readable storage medium storing instructions that cause a processor to:
- determine, during a conversion between a current chroma block of a video and a bitstream of the video, a set of candidate intra prediction modes (IPMs) for the current chroma block based on a decoder-side derivation of intra prediction mode (DDIPM);
- construct an IPM candidate list for the current chroma block based on the set of candidate IPMs;
- and
- perform the conversion based on the IPM candidate list.
A non-transitory computer-readable recording medium storing a bitstream of a video which is generated by a method performed by a video processing apparatus, wherein the method comprises:
- determining a set of candidate intra prediction modes (IPMs) for a current chroma block of the video based on a decoder-side derivation of intra prediction mode (DDIPM);
- constructing an IPM candidate list for the current chroma block based on the set of candidate IPMs;
- and
- generating the bitstream based on the IPM candidate list.
Dependencies are inferred from the claim text.