DEVICE FOR ENCODING AND DECODING IMAGES Russian patent published in 2022 - IPC H04N19/176 H04N19/124 H04N19/13 H04N19/119 H04N19/70 

FIELD: imaging technology.

SUBSTANCE: invention relates to means for encoding and decoding images. A set of strings of consecutive blocks of quantized coefficients of the transformed residual values of the encoded image are entropically encoded for entropy decoding in the decoder. The current block in a set of strings of consecutive blocks is entropically decoded based on one or more state variables. When the current block is the first block in the current string in the decoding order to decode the encoded image, and the current string is not the first string of many strings in the decoding order, one or more state variables for decoding the current block are initialized based on one or more state variables of a given entropically decoded block. In this case, the specified entropically decoded block is the second block in the decoding order in a string of consecutive blocks other than the current row.

EFFECT: increase in the efficiency of image encoding.

1 cl, 14 dwg