OUTPUT OF REFERENCE MODE VALUES AND ENCODING AND DECODING OF INFORMATION REPRESENTING PREDICTION MODES Russian patent published in 2020 - IPC H04N19/105 H04N19/159 H04N19/593 

FIELD: data processing.

SUBSTANCE: invention relates to encoding/decoding, in particular to encoding in intra-mode of High Efficiency Video Coding (HEVC) standard. Disclosed is output of reference values of prediction mode, also called most probable modes (MPM), which are used to encode/decode prediction mode associated with current coding element. First and second prediction mode reference values are output from respective prediction modes of at least two neighbouring coding elements of current coding element. First and second reference prediction modes differ from each other, and the third prediction mode reference value is derived from the prediction mode first and second reference values. By outputting three MPMs instead of two for comparison with the prediction mode of the current encoding unit, the encoding efficiency is improved since there is an increase in the probability that the prediction mode of the current encoding unit corresponds to one of the derived most probable modes.

EFFECT: high efficiency of encoding/decoding information on prediction modes.

16 cl, 11 dwg