METHOD AND DEVICE FOR IMAGE DECODING BASED ON INTRA-PREDICTIONS IN THE IMAGE CODING SYSTEM Russian patent published in 2021 - IPC H04N19/593 H04N19/11 

FIELD: image coding.

SUBSTANCE: invention relates to intra-prediction image decoding in an image coding system. The technical result is provision of highly efficient image compression for efficient transmission and reproduction of high-resolution and high-quality image information. 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 adjacent samples; and a step of generating a prediction sample for the current block using at least one of the upper reference samples and the left reference samples in accordance with the intra prediction mode.

EFFECT: highly efficient image compression for transmission efficiency.

12 cl, 12 dwg