METHOD AND DEVICE FOR CODING/DECODING IMAGE SIGNALS Russian patent published in 2023 - IPC H04N19/593 H04N19/105 H04N19/119 

FIELD: video encoding.

SUBSTANCE: line of reference readings of the current block is defined. It is determined whether there is a candidate internal prediction mode that is the same as the internal prediction mode of the current block. Internal prediction is performed on the current block based on the reference sample line and the internal prediction mode. At least one of the candidate internal prediction modes is obtained by adding or subtracting an offset to the maximum value from the top neighbouring block internal prediction mode of the current block and the left neighbouring internal prediction mode of the current block. The transformation type in the horizontal direction of the sub-block is determined based on the width of the sub-block, and the transformation type in the vertical direction of the sub-block is determined based on the height of the sub-block.

EFFECT: increased efficiency of video coding.

8 cl, 30 dwg, 11 tbl