EARLY TERMINATION FOR OPTICAL FLOW REFINEMENT

    公开(公告)号:EP4243418A2

    公开(公告)日:2023-09-13

    申请号:EP23184185.9

    申请日:2020-02-21

    IPC分类号: H04N19/557

    摘要: It is provided a method of video coding implemented in a decoding device or an encoding device, the method comprising: obtaining initial motion vectors for a current block;
    obtaining first predictions for a sample value in the current block based on the initial motion vectors; calculating a first matching cost according to the first predictions; determining whether an optical flow refinement process should be performed or not, according to at least one preset condition, the at least one preset condition comprising a condition of whether the calculated first matching cost is equal to or larger than a threshold; and performing an optical flow refinement process for obtaining a final inter prediction for the sample value in the current block, when it is determined that the optical flow refinement process should be performed.