METHOD AND DEVICE FOR CODING INTRA-FRAME PREDICTION MODE FOR IMAGE PREDICTING UNIT AND METHOD AND DEVICE FOR DECODING INTRA-FRAME PREDICTION MODE FOR IMAGE PREDICTING UNIT Russian patent published in 2018 - IPC G06K9/46 G06T9/00 H04N19/103 

FIELD: physics.

SUBSTANCE: method includes restoring a group of possible intra-frame prediction modes of the colour component prediction unit by excluding the intra-frame prediction mode of the colour component prediction unit, which is the same as the intra-frame prediction mode of the luminance component prediction unit from the group of possible intra-frame prediction or replacement mode embodiments of the colour component prediction unit, which is the same as the prediction mode of the luminance component, for another intra-frame prediction mode, and coding the intra-frame prediction mode of the colour component prediction unit by using the reduced group of possible embodiments the intra-frame prediction mode.

EFFECT: improving the quality of images by increasing the efficiency of encoding and decoding video signals in the intra-frame prediction mode.

2 cl, 38 dwg, 9 tbl