Intra prediction mode concept for block based image coding

摘要

The concept of intra prediction mode for block coding is disclosed.EspeciallyTo decode an image (10) from a data streamAn apparatus for encoding an image (10) into and / or a data stream (12)54-2),A predetermined size block of imagesThe intra prediction signal of 172 isThe first template of the sample adjacent to the current block170) is determined by applying to neural networkSupports at least one intra prediction modeApparatus is disclosed.The apparatus can be configured as follows for the present block (18) different from the predetermined size:The second template (60) of the sample adjacent to the current block (18) is resampled (134, 166) to match the first template (130, 170) to obtain the resampled templateTo obtain the preliminary intra prediction signals (138, 172, 176), the sample resampled template (130, 170) is applied to the neural network (88a) (138A, 170a, 44-1, 44-2)The preliminary intra prediction signals (138, 172, 176) are resampled (140) to match the current block (18) to obtain an intra prediction signal (142, 24-1, 24-2) for the current block 180).