原始名称记载: Alibaba (China) Co., Ltd.

A method for decoding a bitstream includes: receiving a bitstream; and decoding the bitstream to output a video sequence. The decoding including: generating a set of motion pair candidates from refined motion vectors or merge motion vectors under an implicit geometric partitioning mode, in which the refined motion vectors are obtained by template matching; deriving, based on the set of motion pair candidates, at least two blending matrices associated with a coding block; and applying the at least two blending matrices to at least two geometric partition parts of the coding block, respectively.