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/Encoder, A Decoder And Corresponding Methods
Abstract

A method of decoding a coded video bitstream is provided, the method comprising: obtaining, from the coded video bitstream, a first syntax element specifying whether the first layer use inter-layer prediction; obtaining, from the coded video bitstream, one or more second syntax elements related to one or more second layers, each second syntax element specifies whether a second layer is a direct reference layer for the first layer; wherein at least one second syntax element of the one or more second syntax elements has a value specifying a second layer is a direct reference layer for the first layer, in case that the value of the first syntax element specifies the first layer is allowed to use inter-layer prediction; performing inter-layer prediction for a picture of the first layer by using a picture of the second layer related to the at least one second syntax element as a reference picture.

Full Text

What is claimed is:

A method of decoding a coded video bitstream is provided, the method comprising: obtaining, from the coded video bitstream, a first syntax element specifying whether the first layer use inter-layer prediction; obtaining, from the coded video bitstream, one or more second syntax elements related to one or more second layers, each second syntax element specifies whether a second layer is a direct reference layer for the first layer; wherein at least one second syntax element of the one or more second syntax elements has a value specifying a second layer is a direct reference layer for the first layer, in case that the value of the first syntax element specifies the first layer is allowed to use inter-layer prediction; performing inter-layer prediction for a picture of the first layer by using a picture of the second layer related to the at least one second syntax element as a reference picture.
Timeline
Filed
04/21/2026
Published
08/27/2026
Granted
Not Available
IPC Codes(6)
H04N 19/70:characterised by syntax aspects related to video coding, e.g. related to compression standards
H04N 19/105:Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
H04N 19/159:Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction