US 11,973,978 B2
Implementation efficient partition-based intra coding concept
Santiago De Luxán Hernández, Berlin (DE); Benjamin Bross, Berlin (DE); Phan Hoang Tung Nguyen, Berlin (DE); Valeri George, Berlin (DE); Heiko Schwarz, Berlin (DE); Detlev Marpe, Berlin (DE); and Thomas Wiegand, Berlin (DE)
Assigned to Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Munich (DE)
Filed by Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Munich (DE)
Filed on Sep. 10, 2021, as Appl. No. 17/471,911.
Application 17/471,911 is a continuation of application No. PCT/EP2020/056489, filed on Mar. 11, 2020.
Claims priority of application No. 19162405 (EP), filed on Mar. 12, 2019.
Prior Publication US 2021/0409765 A1, Dec. 30, 2021
Int. Cl. H04N 19/593 (2014.01); H04N 19/157 (2014.01); H04N 19/172 (2014.01); H04N 19/176 (2014.01); H04N 19/18 (2014.01); H04N 19/61 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/593 (2014.11) [H04N 19/157 (2014.11); H04N 19/172 (2014.11); H04N 19/176 (2014.11); H04N 19/18 (2014.11); H04N 19/61 (2014.11); H04N 19/70 (2014.11)] 27 Claims
OG exemplary drawing
 
1. A decoder for block-based decoding of a picture from a data stream, comprising:
a processor, the processor configured to,
decode an intra-coding mode for a predetermined block of the picture from the data stream;
decode a partition dimension flag for the predetermined block of the picture from the data stream and set a partition dimension depending on the partition dimension flag to be horizontal or vertical, wherein the predetermined block is partitioned along the partition dimension into transform partitions which are as wide as the predetermined block perpendicular to partition dimension;
decode, for each transform partition, a transform of a prediction residual from the data stream;
intra-predicting the predetermined block depending on one or more already reconstructed samples neighboring the predetermined block in a manner depending on the intra-coding mode to acquire a predictor for the predetermined block; and
reconstructing the predetermined block by correcting the predictor within each transform partition using the transform of the prediction residual decoded for the respective transform partition.