DEVICE FOR PREDICTION IMAGE ENCODING, PREDICTION IMAGE DECODING APPARATUS, METHOD OF ENCODING IMAGES WITH PREDICTION, METHOD OF DECODING IMAGES WITH PREDICTION, PROGRAM FOR ENCODING IMAGES WITH PREDICTION AND PROGRAM FOR DECODING IMAGES WITH PREDICTION Russian patent published in 2018 - IPC H04N19/593 H04N19/159 H04N19/44 

FIELD: computer engineering.

SUBSTANCE: prediction image decoding device is configured to output mode information by processing a function including adding or subtracting an integer to or from the mode information, related to the intra-frame prediction method corresponding to one of a plurality of contiguous areas; determining a first prediction method for the target area for generating the intra prediction signal based on the derived mode information; extract the relative method of prediction; output a second prediction method for the target area based on the first prediction method and the relative prediction method; generate an intra-frame prediction signal based on the derived second prediction method; extract a difference signal related to the target area from the compressed image data; and recover the pixel signal of the target area.

EFFECT: technical result consists in improvement of efficiency of decoding.

2 cl, 14 dwg