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Apparatus, a method and a computer program for video coding and decoding

專利號
US11800131B2
公開日期
2023-10-24
申請人
NOKIA TECHNOLOGIES OY（FI Espoo）
發(fā)明人
Miska Matias Hannuksela; Kemal Ugur
IPC分類
H04N19/463; H04N19/70; H04N19/30; H04N19/61
技術(shù)領(lǐng)域
prediction,picture,bitstream,layer,pictures,syntax,coded,in,decoding,nal
地域： Espoo

摘要

A method comprising encoding a bitstream comprising a base layer, a first enhancement layer and a second enhancement layer; encoding an indication of both the base layer and the first enhancement layer used for prediction for the second enhancement layer in the bitstream; encoding, in the bitstream, an indication of a first set of prediction types that is applicable from the base layer to the second enhancement layer, wherein the first set of prediction types is a subset of all prediction types available for prediction between layers, and encoding, in the bitstream, an indication of a second set of prediction types that is applicable from the base layer or the first enhancement layer to the second enhancement layer, wherein the second set of prediction types is a subset of all prediction types available for prediction between layers.

說明書

In some embodiments, an enhancement layer may have more than one reference layers, e.g. a first reference layer and a second reference layer, and an enhancement layer may have a different scalability relation to its reference layers. In other words, an enhancement layer may be an enhancement of a first scalability type for its first reference layer and an enhancement of a second scalability type for its second reference layer. For example, an enhancement layer may be a spatial enhancement layer for a non-base view and it may have for example two reference layers, e.g. the spatial base layer for the same view and the spatial enhancement layer of the base view (having e.g. the same resolution as that of the enhancement layer of the non-base view). In another example, an enhancement layer may be a non-base depth view and it may have for example two reference layers, e.g. the texture view of the same viewpoint and the base depth view.

權(quán)利要求

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