FIELD: physics.
SUBSTANCE: determining a coding unit using the decomposition information extracted from the bitstream, extracting information from the bitstream of the transformation index indicating, whether the current level transformation unit included in the coding unit from the coding unit is divided, when the transformation index information indicates the current level transformation unit, the partition of the current level transformation unit into the transformation units of the lower level, and when the index information indicates the non-partition of the current level transformation unit, obtaining information about the structure of a unit for transforming the current level. The structure information indicates whether the conversion unit of the current level contains one or more conversion coefficients other than 0.
EFFECT: improving the efficiency of decoding information on the encoding unit structure.
4 cl, 29 dwg, 1 tbl
