METHOD FOR VIDEO DECODING AND VIDEO DECODER Russian patent published in 2022 - IPC H04N19/70 H04N19/13 H04N19/91 

FIELD: video decoding.

SUBSTANCE: decoding method is proposed, which includes stages of: syntaxis analysis of the received bit stream for obtaining a syntaxis element to be entropically decoded in a current block, where the syntaxis element to be entropically decoded in the current block includes syntaxis element 1 and syntaxis element 2 in the current block; obtaining a context model corresponding to the syntaxis element to be entropically decoded, while the context model corresponding to syntaxis element 1 is determined from a predetermined set of context models, or the context model corresponding to syntaxis element 2 is determined from this set of context models; entropic decoding of the syntaxis element to be entropically decoded based on the context model corresponding to the syntaxis element to be entropically decoded in the current block; processing of a prediction relatively to the current block based on the syntaxis element, which is located in the current block, and which is obtained by means of entropic decoding, to obtain a prediction block of the current block; and obtaining a restored image of the current block based on the prediction block of the current block.

EFFECT: increase in the efficiency of decoding for reduction in space necessary for a decoder for storage of context.

17 cl, 15 dwg, 5 tbl