Sub-block based prediction
AssigneesBeijing Bytedance Network Technology Co., Ltd., Bytedance Inc.
InventorsHongbin Liu, Li Zhang, Kai Zhang, Yue Wang
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Abstract
A method for video processing includes: determining, that the video block is split into a plurality of sub-blocks based on a condition associated with the video block, refining motion information of each sub-block using a motion refinement process, the motion refinement process being a one-step or an iterative multi-step refinement process; and performing a video processing on the video block based on the refined motion information of each sub-block.
Claims20
A method for video processing, comprising:
- selectively using a motion refinement approach to refine motion information of a video block based on at least one of the video block and a reference picture for coding the video block;
- and
- performing a conversion between the video block of a video and a bitstream of the video based on refined motion information of the video block.
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:
- selectively use a motion refinement approach to refine motion information of a video block based on at least one of the video block and a reference picture for coding the video block;
- and
- perform a conversion between the video block of a video and a bitstream of the video based on refined motion information of the video block.
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:
- selectively using a motion refinement approach to refine motion information of a video block based on at least one of the video block and a reference picture for coding the video block;
- and
- generating the bitstream based on refined motion information of the video block.
Dependencies are inferred from the claim text.