知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

69 条记录 (耗时 0.049 秒)

    CODING CONCEPT ALLOWING PARALLEL PROCESSING, TRANSPORT DEMULTIPLEXER AND VIDEO BITSTREAM
    2.
    发明申请
    CODING CONCEPT ALLOWING PARALLEL PROCESSING, TRANSPORT DEMULTIPLEXER AND VIDEO BITSTREAM 有权

    公开(公告)号：US20210044835A1

    公开(公告)日：2021-02-11

    申请号：US17082385

    申请日：2020-10-28

    申请人： GE VIDEO COMPRESSION, LLC

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

    IPC分类号： H04N19/91 ,  H04N19/169 ,  H04N19/107 ,  H04N19/436 ,  H04N19/13

    摘要： 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 earlier, i.e. with 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 so as to be able to, in parallel, serve a multi-threaded decoder with the corresponding substreams or tiles.

    EFFICIENT SCALABLE CODING CONCEPT
    5.
    发明申请
    EFFICIENT SCALABLE CODING CONCEPT 审中-公开

    公开(公告)号：US20190020883A1

    公开(公告)日：2019-01-17

    申请号：US16123184

    申请日：2018-09-06

    申请人： GE Video Compression, LLC

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

    IPC分类号： H04N19/187 ,  H04N19/30 ,  H04N19/80 ,  H04N19/102 ,  H04N19/119 ,  H04N19/12 ,  H04N19/139 ,  H04N19/174

    摘要： 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
    6.
    发明申请
    CODING CONCEPT ALLOWING PARALLEL PROCESSING, TRANSPORT DEMULTIPLEXER AND VIDEO BITSTREAM 审中-公开

    公开(公告)号：US20180167640A1

    公开(公告)日：2018-06-14

    申请号：US15890820

    申请日：2018-02-07

    申请人： GE VIDEO COMPRESSION, LLC

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

    IPC分类号： H04N19/91 ,  H04N19/436 ,  H04N19/107 ,  H04N19/169 ,  H04N19/65

    摘要： 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 earlier, i.e. with 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 so as to be able to, in parallel, serve a multi-threaded decoder with the corresponding substreams or tiles.