ENCODER, DECODER, ENCODING METHOD AND DECODING METHOD Russian patent published in 2023 - IPC H04N19/52 H04N19/593 

FIELD: image encoding and decoding.

SUBSTANCE: result is ensured by determining whether the size of the current block, which is a unit for which a list of possible vector options is generated, is less than or equal to a threshold value; when the size of the current block is less than or equal to the threshold value, generating a candidate vector list by registering a candidate vector using a historic motion vector predictor (HMVP) in the list of candidate vectors from the HMVP table without performing a first pruning process; when the size of the current block exceeds a threshold value, a list of candidate vectors is generated by performing a first pruning process and registering the candidate HMVP vector in the list of candidate vectors from the HMVP table.

EFFECT: increasing the efficiency of image encoding/decoding.

22 cl, 124 dwg, 3 tbl