ENCODER, DECODER, ENCODING METHOD AND DECODING METHOD Russian patent published in 2024 - IPC H04N19/52 H04N19/593 

FIELD: data processing.

SUBSTANCE: invention relates to encoding and decoding images. Determining whether the size of the current block, which is a unit, for which a list of possible variants of vectors is formed, is less than or equal to a threshold value; when size of current block is less than or equal to threshold value, generating a candidate vector list by registering a candidate vector using a history-based motion vector predictor (HMVP) in a candidate vector list from the HMVP table without performing a first pruning process; when size of current block exceeds threshold value, generating a list of possible vector variants by performing a first pruning process and recording a possible variant of the HMVP vector in the list of possible variants of vectors from the HMVP table, and encoding the current block using a list of possible variants of vectors.

EFFECT: high efficiency of encoding and decoding images.

4 cl, 124 dwg, 3 tbl