FIELD: information technologies.
SUBSTANCE: method for decoding of a bit stream, besides, a bit stream corresponds to coded video, besides, the coded video includes a sequence of frames, besides, each frame is sectioned into coded blocks for each coded block, includes stages, where: a set of tracts is determined in the block, at the same time each tract is at a conversion angle defined from the conversion index in the bit stream; coefficients of conversion are produced from the bit stream, at the same time the conversion coefficients include one DC-coefficient for each tract; and primary reverse conversion is applied to coefficients of conversion in each tract for generation of decoded video, besides, the stages of detection, receipt and application are performed in a decoder.
EFFECT: higher efficiency of coding with support of directed properties of initial conversion.
13 cl, 21 dwg
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