IMAGE ENCODING DEVICE, IMAGE DECODING DEVICE, IMAGE ENCODING METHOD, IMAGE DECODING METHOD AND IMAGE PREDICTION DEVICE Russian patent published in 2019 - IPC H04N19/593 H04N19/176 

FIELD: computer engineering.

SUBSTANCE: invention relates to computer engineering. Image decoding device comprises an intra prediction module for performing when the encoding mode for the encoding block is an intra encoding mode, an intra-frame prediction process over each of the processing units to form a predictive image, each of said processing units being a coding unit or a sub-block, obtained by separating said coding block, wherein when the intra prediction parameter indicates a vertical prediction process, the intra prediction unit sums some value with a signal value of a pixel adjacent to the upper part of said processing unit, and outputs the result of the summation as a predicted value of said prediction image, moreover, said value is proportional to the magnitude of the change in the vertical direction of the values ​​of the signals of the pixels adjacent to the left side of said processing unit.

EFFECT: technical result is to improve the quality of images due to the implementation of high-precision prediction.

4 cl, 17 dwg