METHOD AND DEVICE FOR IMAGE DECODING BASED ON INTRA-PREDICTIONS IN THE IMAGE CODING SYSTEM Russian patent published in 2022 - IPC H04N19/593 H04N19/11 

FIELD: image decoding.

SUBSTANCE: invention relates to intra-prediction image decoding in an image coding system. A video decoding method performed by a decoding apparatus according to the present invention is proposed, comprising: a step of obtaining an intra prediction mode for a current block; a step of obtaining the upper adjacent samples of the plurality of rows and the left adjacent samples of the plurality of columns; a step of obtaining one row of upper reference samples based on the upper adjacent samples; a step of obtaining one column of left reference samples based on left neighboring samples; and a step of generating a prediction sample for the current block using at least one of the upper reference samples and left reference samples in accordance with the intra prediction mode.

EFFECT: providing highly efficient image compression for efficient transmission and reproduction of high definition and quality image information.

15 cl, 12 dwg