METHOD OF CONVERTING IN AN IMAGE ENCODING SYSTEM AND A DEVICE FOR REALIZING SAID METHOD Russian patent published in 2020 - IPC H04N19/122 H04N19/124 H04N19/13 

FIELD: image encoding means.

SUBSTANCE: index of indivisible transformation is received. Selecting an indivisible transformation kernel included in the indivisible transformation index based on the indivisible transformation index. Modified transformation coefficients are generated for the target unit by indivisible transformation of transformation coefficients for the target block based on the indivisible transformation kernel. Residual samples are formed based on modified transformation coefficients for the target block. Reconstructed frame is generated based on the predicted samples for the target block and residual samples. Value of the indivisible transformation index is presented based on truncated unary (TU) binarisation. Maximum value of the indivisible transformation index is equal to 2. Value 0 of the indivisible transformation index is represented by a bin sequence '0', value 1 of the indivisible transformation index is represented by a bin sequence '10'.

EFFECT: technical result is higher efficiency of encoding images.

15 cl, 6 tbl, 7 dwg