Patent ID: 11876932
Assignee: BYTEDANCE INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. A non-transitory computer-readable storage medium storing instructions that cause a processor to:
make, based on a rule that uses a block dimension of a current video block of a video, a first determination on whether a first scheme is enabled or disabled for a conversion between the current video block and a bitstream of the video; wherein the first scheme is used to derive a refined motion information based on a cost between at least one reference sample of list 0 and at least one reference sample of list 1;
make, based on the rule, a second determination on whether a second scheme is enabled or disabled for the conversion, wherein the second scheme is a bi-directional optical flow scheme; and
perform the conversion based on the first determination and the second determination,
wherein the first scheme and the second scheme are both performed in sub-block level for the current video block,
wherein the current video block is split vertically in response to a width of the current video block is greater than a first value, and wherein a width of a sub-block of the current video block is less than or equal to the first value; or
the current video block is split horizontally in response to a height of the current video block is greater than the first value, and wherein a height of a sub-block of the current video block is less than or equal to the first value.