ENCODER, DECODER, ENCODING METHOD AND DECODING METHOD Russian patent published in 2023 - IPC H04N19/513 H04N19/119 H04N19/176 

FIELD: means for video coding.

SUBSTANCE: first table is selected from a plurality of tables, each of the tables associates indices with corresponding correction values, each of the tables is used to change the motion vector of the current block included in the frame. The parameter is written to the bit stream, the parameter indicating the first index from among the indices in the first table. The correction value associated with the first index is identified. The motion vector is changed by a correction value in a predetermined direction. The current block is encoded based on the changed motion vector. In this case, the difference between the two correction values among the correction values varies from table to table, with the two correction values in each of the tables associated with the same two indexes.

EFFECT: increased efficiency of video coding.

2 cl, 72 dwg