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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

  • Reference pictures for sample prediction and/or motion information prediction e.g. in inter-view and/or inter-layer prediction direction may be categorized in one or more reference picture sets. For example, reference pictures for inter-view prediction may be categorized into a reference picture set for inter-view prediction and a variable called e.g. InterViewLtCurr, be assigned to comprise a list of view_id, view order index, or layer_id values, for example, indicating the inter-view reference pictures.
  • A reference picture list may be initialized by including reference picture for motion-compensated temporal prediction e.g. according to HEVC reference picture list initialization process. In addition or alternatively, an initial reference picture list may be initialized to contain other reference pictures for sample prediction, such as those inter-view and/or inter-layer reference pictures used for sample prediction. According to an embodiment, pictures in particular reference picture sets, such as the reference picture set for inter-view prediction, e.g. denoted as InterViewLtCurr, may be appended or included into one or more reference picture lists.

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