Patent ID: 11936903
Assignee: TENCENT AMERICA LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 19:
20. A non-transitory computer readable medium storing program code which, when executed by a computer, causes the computer to at least:
obtain a coding block of a video bitstream;
determine whether a joint coding of motion vector difference (JMVD) is used for predicting the coding block;
obtain, based on determining that the JMVD is used for predicting the coding block, a list of scaling factors and the JMVD from the video bitstream;
deriving a predicted scaling factor based on the list of scaling factors;
deriving a motion vector difference (MVD) for a reference list based on at least the joint motion vector difference and the predicted scaling factor;
reconstructing the coding block based on the derived MVD.