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METHOD AND APPARATUS FOR ENCODING INTRA-FRAME PREDICTION MODE FOR IMAGE PREDICTION UNIT AND METHOD AND DEVICE FOR DECODING INTRA-FRAME PREDICTION MODE FOR IMAGE PREDICTION UNIT
METHOD AND APPARATUS FOR ENCODING INTRA-FRAME PREDICTION MODE FOR IMAGE PREDICTION UNIT AND METHOD AND DEVICE FOR DECODING INTRA-FRAME PREDICTION MODE FOR IMAGE PREDICTION UNIT
FIELD: radio engineering and communications.;SUBSTANCE: invention for images encoding and decoding. Method includes obtaining first intra-frame prediction mode of unit of first components of bit stream, obtaining group of possible versions of intra-frame prediction mode, including diagonal mode, applied to second component of image corresponding to unit of first component of image, obtaining information on intra-frame prediction mode of unit of second component of image from bit stream, determination of second intra-frame mode prediction unit second component from group of possible versions of intra-frame prediction based on intra-frame prediction mode information and performing intra-frame prediction over unit second component of image according to specified second intra-frame prediction mode of unit of second image component.;EFFECT: high image quality by increasing efficiency of encoding and decoding video signals in intra-frame prediction mode.;1 cl, 9 tbl, 38 dwg
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