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

Abstract RU 2738256 C1

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 prediction mode reference values, 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 neighboring 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 prediction mode of current encoding unit, encoding efficiency is improved, since there is an increase in the probability that the prediction mode of the current coding unit corresponds to one of the derived most probable modes.

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

16 cl, 11 dwg

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RU 2 738 256 C1

Authors

Francois, Edouard

Laroche, Guillaume

Onno, Patrice

Dates

2020-12-11Published

2020-05-22Filed