FIELD: data processing.
SUBSTANCE: invention relates to video decoding technologies. Entropy decoding method includes obtaining a significant conversion coefficient flag indicating whether a non-zero transform coefficient exists in the transform unit from the bitstream, determination of the context model for arithmetic decoding of the significant conversion coefficient flag based on the transformation unit conversion depth and arithmetic decoding of the flag of the significant conversion coefficient flag based on a certain context model.
EFFECT: technical result is the simplification of the entropic decoding operation by selecting the context model based on the conversion depth.
1 cl, 1 tbl, 27 dwg
