LOW DELAY PICTURE CODING
    23.
    发明申请

    公开(公告)号:US20190045201A1

    公开(公告)日:2019-02-07

    申请号:US16153307

    申请日:2018-10-05

    Abstract: Parallel processing concepts such as wavefront parallel processing, are realized with a reduced end-to-end delay by giving up the usual slice concept according to which slices are either coded/decoded completely independent from areas of the picture outside of the respective slice, or at least independent from areas outside the respective slice as far as the entropy coding is concerned, namely in favor of slices of different modes, namely ones called dependent slices which allow for interdependencies across slice boundaries, and others which do not, called normal slices, for example. Combined with the aspect or not, WPP processing concept is made more efficiently by using the slices' start syntax portions to locate WPP entry points.

    LAYER ID SIGNALING USING EXTENSION MECHANISM
    24.
    发明申请
    LAYER ID SIGNALING USING EXTENSION MECHANISM 审中-公开
    使用扩展机制的层号信号

    公开(公告)号:US20160134896A1

    公开(公告)日:2016-05-12

    申请号:US14995399

    申请日:2016-01-14

    Abstract: A signaling of the layer ID is described which each of the packets of a multi-layered video signal is associated with. In particular, an efficient way of signaling this layer association is achieved, with nevertheless maintaining the backward compatibility with codecs according to which a certain value of the base layer-ID field is restricted to be non-extendable such as base layer-ID value 0 in the base layer-ID field. Instead of circumventing this restriction specifically with respect to this non-extendable base layer-ID value, the layer-ID of portions of the multi-layer data stream is signaled in an extendable manner by sub-dividing the base layer-ID field into a first sub-field and a second sub-field: whenever the first sub-field of the base layer-ID field fulfills a predetermined criterion, an extension layer-ID field is provided, and if the first sub-field of the base layer-ID field does not fulfill the predetermined criterion, the extension layer-ID field is omitted.

    Abstract translation: 描述了层ID的信令,其中多层视频信号的分组中的每一个与哪个分组相关联。 特别地,实现了发送该层关联的有效方式,然而仍然保持与编解码器的向后兼容性,根据该编解码器,基本层ID字段的某个值被限制为不可扩展的,例如基本层ID值0 在基层ID字段中。 除了针对该不可扩展的基本层ID值专门地规避这种限制之外,代替多层数据流的部分的层ID以可扩展的方式通过将基本层ID字段划分为 第一子场和第二子场:每当基本层ID字段的第一子字段满足预定标准时,提供扩展层ID字段,并且如果基本层ID-ID字段的第一子字段 ID字段不满足预定标准,省略了扩展层ID字段。

    LAYER CHARACTERISTIC SIGNALING IN MULTI-LAYERED CODING
    25.
    发明申请
    LAYER CHARACTERISTIC SIGNALING IN MULTI-LAYERED CODING 审中-公开
    多层编码中的层特征信号

    公开(公告)号:US20160134895A1

    公开(公告)日:2016-05-12

    申请号:US14995244

    申请日:2016-01-14

    Abstract: A signaling of at least one characteristic for layers of a multi-layered video signal such as, for example, for each layer the indication of dependent layers to which the respective layer directly relates via inter-layer prediction, or the signaling of the afore-mentioned second inter-dependency syntax structure, is described. A maximum syntax element is signaled within the multi-layered video signal to indicate a maximally used value of an extension layer-ID field of the packets of the multi-layered video signal, the scope of the maximum syntax element being, for example, a predetermined portion of the multi-layered video signal extending, for example, across several portions of the multi-layered video signal. Accordingly, it is feasible for devices such as decoders or network elements receiving the multi-layered video signal to gain, for a relatively large predetermined portion of the multi-layered video signal, knowledge about the actually consumed portion of the possible domain of possible values.

    Abstract translation: 对于多层视频信号的层的至少一个特征的信令,例如对于每个层,通过层间预测与相应层直接相关联的依赖层的指示,或者上述信号的信令, 描述了第二相互依赖性语法结构。 在多层视频信号中用信号通知最大语法元素以指示多层视频信号的分组的扩展层ID字段的最大使用值,最大语法元素的范围为例如 多层视频信号的预定部分例如延伸到多层视频信号的若干部分。 因此,对于多层视频信号的相对较大的预定部分,接收多层视频信号的解码器或网络单元等装置可获得对可能值的可能域的实际消耗部分的了解 。

    EFFICIENT SCALABLE CODING CONCEPT
    26.
    发明申请
    EFFICIENT SCALABLE CODING CONCEPT 审中-公开
    有效的可分级编码概念

    公开(公告)号:US20150304667A1

    公开(公告)日:2015-10-22

    申请号:US14753144

    申请日:2015-06-29

    Abstract: Scalable coding concepts are described. One aspect improves parallel decoding of inter-dependent layers of a multi-layer video data stream by introducing a long-term syntax element structure for guaranteeing that during a predetermined time period the pictures of the dependent layer are subdivided so that borders of the spatial segments of the pictures of the second layer and the spatial segments of the first layer overlay. Another aspect concerns upsampling from base layer to enhancement layer. Another aspect introduces a long-term syntax element structure allowing the decoder to determine the inter-layer offset for a predetermined time period. Another aspect introduces a type indicator field changing a way a layer indicator field within the NAL unit headers is to be interpreted. Another aspect allows different codecs/standards to be used for the different layers. Another aspect concerns a syntax element structure which indicates the inter-layer offset in units of the base layer blocks.

    Abstract translation: 描述可扩展编码概念。 一个方面通过引入长期语法元素结构来改进多层视频数据流的相互依赖层的并行解码,以保证在预定时间段内从属层的图像被细分,使得空间段的边界 的第二层的图像和第一层覆盖物的空间段。 另一方面涉及从基层到增强层的上采样。 另一方面引入了长期语法元素结构,允许解码器在预定时间段内确定层间偏移。 另一方面引入了一种类型指示符字段来改变NAL单元头部中的层指示符字段将被解释的方式。 另一方面允许不同的编解码器/标准被用于不同的层。 另一方面涉及一种语法元素结构,其以基本层块为单位指示层间偏移。

    SCALABLE DATA STREAM AND NETWORK ENTITY
    29.
    发明申请

    公开(公告)号:US20200275109A1

    公开(公告)日:2020-08-27

    申请号:US15930937

    申请日:2020-05-13

    Abstract: The handling of scalable data streams by network entities is rendered less complex by, in the data stream, accompanying packets which actually carry data by packets of a different packet type which have a scalability axes descriptor defining the number of scalability axes and a semantic meaning thereof. In another aspect, the handling of scalable data streams by network entities is rendered more efficient by conveying level and/or profile descriptors using packets other than the data carrying packets, with profile and/or level descriptors being divided up into a first set explicitly signaling the definition of the available coding option set and/or available syntax element value range for a respective operation point, and a second set of profile and/or level descriptors which signal the definition of the available coding option set and/or available syntax element value range for their respective operation points by reference another profile and/or level descriptor.

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