US 12,395,651 B2
Subpicture-related video coding concepts
Yago Sánchez De La Fuente, Berlin (DE); Karsten Sühring, Berlin (DE); Cornelius Hellge, Berlin (DE); Thomas Schierl, Berlin (DE); Robert Skupin, Berlin (DE); and Thomas Wiegand, Berlin (DE)
Assigned to FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V., Munich (DE)
Appl. No. 17/926,646
Filed by FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V., Munich (DE)
PCT Filed May 20, 2021, PCT No. PCT/EP2021/063553
§ 371(c)(1), (2) Date Nov. 21, 2022,
PCT Pub. No. WO2021/234125, PCT Pub. Date Nov. 25, 2021.
Claims priority of application No. 20176208 (EP), filed on May 22, 2020.
Prior Publication US 2023/0199202 A1, Jun. 22, 2023
Int. Cl. H04N 19/31 (2014.01); H04N 19/109 (2014.01); H04N 19/119 (2014.01); H04N 19/139 (2014.01); H04N 19/172 (2014.01); H04N 19/463 (2014.01); H04N 19/52 (2014.01)
CPC H04N 19/31 (2014.11) [H04N 19/109 (2014.11); H04N 19/119 (2014.11); H04N 19/139 (2014.11); H04N 19/172 (2014.11); H04N 19/463 (2014.11); H04N 19/52 (2014.11)] 26 Claims
OG exemplary drawing
 
1. An encoder for encoding a video into a multi-layered video data stream, the encoder comprising:
a processor; and
a memory storing instructions that, when executed by the processor, cause the processor to:
encode, into a first layer (L1) of the multi-layered video data stream, a first version of the video using one or more inter-layer prediction tools, from a set of inter-layer prediction tools, for prediction from a second layer (L0) of the multi-layered video data stream and using a first configuration setting for subpicture-wise independent coding, and
encode, into the second layer (L0) of the multi-layered video data stream, a second version of the video using a second configuration setting for the subpicture-wise independent coding,
check whether the first and second configuration settings have a predetermined relationship indicating that the first and second versions of the video include an equal number of subpictures,
upon a determination that the first and second configuration settings do not have the predetermined relationship, deactivate, or refrain from making use of, at least one of the set of inter-layer prediction tools.