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    SCALABLE DATA STREAM AND NETWORK ENTITY
    4.
    发明申请
    SCALABLE DATA STREAM AND NETWORK ENTITY 有权

    公开(公告)号：US20220224920A1

    公开(公告)日：2022-07-14

    申请号：US17587849

    申请日：2022-01-28

    Applicant: GE Video Compression, LLC

    Inventor： Thomas SCHIERL ,  Valeri GEORGE ,  Anastasia HENKEL ,  Detlev MARPE ,  Karsten GRÜNEBERG ,  Robert SKUPIN

    IPC: H04N19/169 ,  H04N19/46 ,  H04N19/91 ,  H04N19/70 ,  H04N19/463 ,  H04N19/174 ,  H04N19/436 ,  H04N19/13

    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.

    EFFICIENT SCALABLE CODING CONCEPT
    5.
    发明申请
    EFFICIENT SCALABLE CODING CONCEPT 有权

    公开(公告)号：US20210306646A1

    公开(公告)日：2021-09-30

    申请号：US17241855

    申请日：2021-04-27

    Applicant: GE VIDEO COMPRESSION, LLC

    Inventor： Karsten SUEHRING ,  Thomas SCHIERL ,  Valeri GEORGE ,  Detlev MARPE ,  Robert SKUPIN

    IPC: H04N19/187 ,  H04N19/70 ,  H04N19/119 ,  H04N19/46 ,  H04N19/30 ,  H04N19/102 ,  H04N19/12 ,  H04N19/174 ,  H04N19/80 ,  H04N19/33 ,  H04N19/436 ,  H04N19/59 ,  H04N19/139

    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.

    CODING CONCEPT ALLOWING PARALLEL PROCESSING, TRANSPORT DEMULTIPLEXER AND VIDEO BITSTREAM
    7.
    发明申请
    CODING CONCEPT ALLOWING PARALLEL PROCESSING, TRANSPORT DEMULTIPLEXER AND VIDEO BITSTREAM 审中-公开

    公开(公告)号：US20190124365A1

    公开(公告)日：2019-04-25

    申请号：US16223275

    申请日：2018-12-18

    Applicant: GE VIDEO COMPRESSION, LLC

    Inventor： Thomas SCHIERL ,  Valeri GEORGE ,  Karsten GRUENEBERG ,  Heiner KIRCHHOFFER ,  Anastasia HENKEL ,  Detlev MARPE

    IPC: H04N19/91 ,  H04N19/107 ,  H04N19/436 ,  H04N19/169

    Abstract: A raw byte sequence payload describing a picture in slices, WPP substreams or tiles and coded using context-adaptive binary arithmetic coding is subdivided into tranches with continuing the context-adaptive binary arithmetic coding probability adaptation across tranche boundaries. Thereby, tranche boundaries additionally introduced within slices, WPP substreams or tiles do not lead to a reduction in the entropy coding efficiency of these entities. However, the tranches are smaller than the original slices, WPP substreams or tiles and accordingly they may be transmitted with a lower delay, than the un-chopped original entities. According to another aspect combinable with the first aspect, substream marker NAL units are used within a sequence of NAL units of a video bitstream to enable a transport demultiplexer to assign data of slices within NAL units to the corresponding substreams or tiles to be able to, in parallel, serve a multi-threaded decoder with the corresponding substreams or tiles.

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