US 12,069,236 B2
Encoder, decoder and data stream for gradual decoder refresh coding and scalable coding
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. 17/763,453
Filed by FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V., Munich (DE)
PCT Filed Sep. 23, 2020, PCT No. PCT/EP2020/076616
§ 371(c)(1), (2) Date Mar. 24, 2022,
PCT Pub. No. WO2021/058596, PCT Pub. Date Apr. 1, 2021.
Claims priority of application No. 19199348 (EP), filed on Sep. 24, 2019.
Prior Publication US 2022/0408080 A1, Dec. 22, 2022
Int. Cl. H04N 19/103 (2014.01); H04N 19/159 (2014.01); H04N 19/30 (2014.01); H04N 19/503 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/103 (2014.11) [H04N 19/159 (2014.11); H04N 19/30 (2014.11); H04N 19/503 (2014.11); H04N 19/70 (2014.11)] 6 Claims
OG exemplary drawing
 
1. A decoder for decoding at least one picture from a multi layered scalable video data stream, the multi layered scalable video data stream comprising a first sequence of pictures in a first layer and a second sequence of pictures in a second layer, wherein each of the first layer and the second layer comprise a plurality of temporal sublayers,
wherein the decoder is configured to decode, based on a signalization derived from the scalable video data stream, one or more of the plurality of temporal sublayers of the second layer using inter-layer prediction, the signalization indicating which temporal sublayers of the second layer are to be decoded using inter-layer prediction,
wherein the signalization comprises a predetermined temporal identifier to indicate which temporal sublayers of the second layer are to be decoded using inter-layer prediction,
wherein the temporal sublayers of the second layer which comprise a temporal identifier having a value above the predetermined temporal identifier are decoded without using inter-layer prediction, and
wherein, if the decoder derives from the signalization that a temporal sublayer of the second layer does not use a temporal sublayer of the first layer for inter-layer prediction, the decoder is configured to discard the temporal sublayer of the first layer and not use the temporal sublayer of the first layer when decoding the temporal sublayer of the second layer.