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    • 7. 发明申请
    • CLUSTER-BASED DEPENDENCY SIGNALING
    • 基于群集的依赖信号
    • WO2015007750A1
    • 2015-01-22
    • PCT/EP2014/065181
    • 2014-07-15
    • FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    • SÜHRING, KarstenSCHIERL, ThomasMARPE, DetlevSKUPIN, RobertSÁNCHEZ DE LA FUENTE, YagoTECH, Gerhard
    • H04N19/65H04N19/70
    • H04N19/30H04L69/324H04N19/119H04N19/166H04N19/174H04N19/187H04N19/33H04N19/423H04N19/44H04N19/50H04N19/593H04N19/65H04N19/66H04N19/70H04N19/85H04N19/89H04N19/91
    • The signalization of the inter-layer dependencies between layers of a multi-layered data stream is described. A good compromise between a too intensive restriction of the potential diversity of inter-layer dependencies on the one hand and a too complex signaling of the inter-layer dependencies on the other hand has been found by describing the inter-layer dependencies by way of a first inter-dependency syntax structure indicating inter-dependencies between pairs of different values representable by a base layer-ID and a second inter-dependency syntax structure indicating inter-dependencies between pairs of different values representable by an extension layer-ID, the base layer ID and extension layer ID indexing the layers the portions of the multi-layer data stream are associated with. In accordance with this concept, emphasis may be shifted between increased diversity of the signalizable inter-layer dependencies on the one hand and reduced side-information overhead for signaling the inter-layer dependencies on the other hand: for example, calling the sets of layers having a common base-layer ID, respectively, "clusters", the same second inter-dependency syntax structure may be used to regulate the inter-dependencies within all clusters and between all clusters related to each other via the first inter-dependency syntax structure, separately. Alternatively, two instantiations of the second inter-dependency syntax structure may be used to describe the inter-dependencies of the layers within the clusters on the one hand and between the layers of different clusters, on the other hand. Irrespective of the emphasis placed towards increased diversity or reduced side information overhead, the inter-dependency signaling concept results in keeping the signaling overhead low.
    • 描述了多层数据流的层之间的层间依赖性的信令化。 一方面,对层间依赖性的潜在多样性的过度强化限制与另一方面的层间依赖性的太复杂的信令之间的良好妥协已经通过以下方式来发现:层间依赖性 第一相互依赖性语法结构,指示由基本层ID和第二相互依赖性语法结构表示的不同值的对之间的相互依赖性,其指示由扩展层ID表示的不同值的对之间的相互依赖性,所述基本层 ID和扩展层ID索引多层数据流的部分相关联的层。 根据这个概念,一方面可以在增加的信令化层间依赖性的多样性之间转移,另一方面减少了信令层间依赖性的侧信息开销:例如,调用这些层 具有公共基本层ID,分别是“集群”,相同的第二相互依赖性语法结构可以用于通过第一相互关联语法结构来调节所有集群之间以及彼此相关的所有集群之间的相互依赖关系 ,单独。 或者,另一方面,可以使用第二相互依赖性语法结构的两个实例来一方面描述簇内的层和不同簇的层之间的层的相互依赖性。 不管强调增加多样性或减少侧面信息开销,相互依赖关系信令概念导致信令开销保持较低。