DEVICE AND METHOD FOR ENCODING MOTION VECTOR AND DEVICE AND METHOD FOR DECODING MOTION VECTOR Russian patent published in 2025 - IPC H04N19/513 H04N19/139 H04N19/105 H04N19/52 H04N19/11 

FIELD: data processing.

SUBSTANCE: invention relates to image encoding means. Information indicating resolution of motion vectors of the current block is obtained from the bit stream. First neighbouring block adjacent to the current block is selected using information indicating the resolution of the motion vectors of the current block. When a list from list 1 and list 2, containing a reference frame, referenced by the current block, and a list from list 1 and list 2 containing a reference frame referenced by the first neighbouring block are the same, determining a motion vector predictor of the current block using the motion vector of the first neighbouring block. Otherwise, a default motion vector is determined based on the motion vector of a second neighbouring block from a plurality of neighbouring blocks adjacent to the current block, and a motion vector predictor of the current block is determined using the default motion vector. Motion vector of the current unit is determined using said defined motion vector predictor.

EFFECT: high efficiency of encoding images.

3 cl, 32 dwg