Patent ID: 11936848
Assignee: BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. A computing device, comprising:
one or more processors;
a non-transitory computer-readable storage medium storing instructions executable by the one or more processors, wherein the one or more processors are configured to:
obtain a first reference picture and a second reference picture associated with an inter mode coded block, wherein the first reference picture is before a current picture and the second reference picture is after the current picture in display order;
obtain a first motion vector from the inter mode coded block to a reference block in the first reference picture;
obtain a second motion vector from the inter mode coded block to a reference block in the second reference picture;
apply bi-directional optical flow (BDOF) or decoder-side motion vector refinement (DMVR) to the inter mode coded block based on a mode information of the inter mode coded block, wherein the mode information includes the first motion vector and second motion vector; and
predict a bi-prediction of the inter mode coded block based on the applied BDOF or DMVR,
wherein the one or more processors configured to apply the BDOF or the DMVR to the inter mode coded block based on the mode information of the inter mode coded block are further configured to:
determine whether a regular merge mode or a coded merge index is chosen for the inter mode coded block;
apply the DMVR in response to the regular merge mode having an odd merge index number and being used on the inter mode coded block; and
apply the BDOF in response to the regular merge mode having an even merge index number and being used on the inter mode coded block.