Patent ID: 10051282

Abstract:
Provided is a method for obtaining motion information in video encoding/decoding, which includes calculating a first predictor of a motion vector of a current block/sub-block according to a motion vector of each reference block in a first reference block set of the current block/sub-block; determining a first motion vector difference between a motion vector of each reference block in a second reference block set of the current block/sub-block and a first predictor of the motion vector of the reference block in the second reference block set of the current block/sub-block; predicting a first motion vector difference between the motion vector of the current block/sub-block and the first predictor of the motion vector of the current block/sub-block according to the first motion vector difference of each reference block in the second reference block set to obtain a predictor of the first motion vector difference of the current block/sub-block; and determining a second predictor of the motion vector of the current block/sub-block according to the predictor of the first motion vector difference of the current block/sub-block and the first predictor of the motion vector of the current block/sub-block. The method makes it possible to improve encoding/decoding performance.