Patent ID: 11876964
Assignee: FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An apparatus for block-based decoding of a picture from a data stream, wherein the apparatus comprises:
a processor; and
a memory storing instructions that, when executed, cause the processor to:
decode a split mode flag for a predetermined block of the picture from the data stream;
if the split mode flag indicates a first split mode:
sequentially reconstruct partitions of the predetermined block according to a predetermined partition order by, for a current partition and before proceeding with a subsequent partition:

deriving a predictor for the current partition by filling the current partition depending on one or more already reconstructed samples neighboring the current partition in a manner depending on an intra-coding mode decoded from the data stream; and
reconstructing the current partition by correcting the predictor

using a prediction residual signaled in the data stream;
wherein the partitioning is along a predetermined dimension so that the partitions are as wide as the predetermined block perpendicular to the predetermined dimension, and a width of the partitions, measured along the predetermined dimension, is dependent on the data stream and is determined out of at least two different width settings;

if the split mode flag indicates a second split mode, reconstruct the predetermined block by spatial intra prediction in a manner depending on the intra-coding mode, wherein the spatial intra prediction is performed by:
partitioning the predetermined block into leaf blocks of an hierarchical multi-tree subdivision of the predetermined block along horizontal and vertical subdivision leaf block borders; and
sequentially reconstructing the leaf blocks of the predetermined block according to a predetermined leaf block order that sequentially traverses the leaf blocks.