利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

19 条记录 (耗时 0.018 秒)

    Variable length coding table selection based on block type statistics for refinement coefficient coding
    2.
    发明授权
    Variable length coding table selection based on block type statistics for refinement coefficient coding 失效
    基于块类型统计的可变长度编码表选择，用于细化系数编码

    公开(公告)号：US08565314B2

    公开(公告)日：2013-10-22

    申请号：US11868017

    申请日：2007-10-05

    申请人： Marta Karczewicz ,  Hyukjune Chung ,  Phoom Sagetong

    发明人： Marta Karczewicz ,  Hyukjune Chung ,  Phoom Sagetong

    IPC分类号： H04N1/417

    CPC分类号： H04N19/34 ,  H04N19/13 ,  H04N19/159 ,  H04N19/176 ,  H04N19/187 ,  H04N19/30 ,  H04N19/91

    摘要： This disclosure describes techniques for coding an enhancement layer in a scalable video coding (SVC) scheme. The techniques may be used in variable length coding of refinement coefficients of an enhancement layer of a SVC scheme. According to this disclosure, a method may comprise determining first statistics associated with a first type of video block. determining second statistics associated with a second type of video block, selecting a first variable length coding (VLC) table from a plurality of VLC tables to be used in coding the first type of video block based on the first statistics, selecting a second VLC table from the plurality of VLC tables to be used in coding the second type of video block based on the second statistics, coding video blocks of the first type based on the first VLC table, and coding video blocks of the second type based on the second VLC table.

    摘要翻译： 本公开描述了用于在可伸缩视频编码（SVC）方案中对增强层进行编码的技术。 这些技术可以用于SVC方案的增强层的细化系数的可变长度编码。 根据本公开，方法可以包括确定与第一类型的视频块相关联的第一统计。 确定与第二类型的视频块相关联的第二统计信息，基于第一统计从多个VLC表中选择要用于编码第一类视频块的第一可变长度编码（VLC）表，选择第二VLC表 基于第二统计从用于编码第二类型的视频块的多个VLC表中，基于第一VLC表对第一类型的视频块进行编码，以及基于第二VLC对第二类视频块进行编码 表。

    Extended inter-layer coding for spatial scability
    3.
    发明授权
    Extended inter-layer coding for spatial scability 有权
    用于空间可视性的扩展层间编码

    公开(公告)号：US08548056B2

    公开(公告)日：2013-10-01

    申请号：US11958692

    申请日：2007-12-18

    申请人： Phoom Sagetong ,  Hyukjune Chung ,  Marta Karczewicz

    发明人： Phoom Sagetong ,  Hyukjune Chung ,  Marta Karczewicz

    IPC分类号： H04N11/02

    CPC分类号： H04N19/59 ,  H04N19/33

    摘要： This disclosure describes techniques for coding information in a scalable video coding (SVC) scheme that supports spatial scalability. In one example, a method of coding information in a SVC scheme comprises coding first video blocks defined in a base layer of the SVC scheme, and coding second video blocks defined in an enhancement layer of the SVC scheme, wherein the second video blocks provide spatial scalability enhancement relative to the first video blocks. The coding of the second video blocks includes performing inter-layer prediction for the enhancement layer relative to the base layer for a first subset of the second video blocks that fully overlap the first video blocks, and performing inter-layer prediction for the enhancement layer relative to the base layer for a second subset of the second video blocks that partially overlap the first video blocks.

    摘要翻译： 本公开描述了用于在支持空间可扩展性的可伸缩视频编码（SVC）方案中对信息进行编码的技术。 在一个示例中，在SVC方案中编码信息的方法包括编码在SVC方案的基础层中定义的第一视频块，以及编码在SVC方案的增强层中定义的第二视频块，其中第二视频块提供空间 相对于第一视频块的可扩展性增强。 第二视频块的编码包括对于与第一视频块完全重叠的第二视频块的第一子集，相对于基本层执行增强层的层间预测，以及对增强层相对地执行层间预测 到与第一视频块部分重叠的第二视频块的第二子集的基本层。

    Variable length coding techniques for coded block patterns
    4.
    发明授权
    Variable length coding techniques for coded block patterns 有权
    编码块模式的可变长度编码技术

    公开(公告)号：US08335261B2

    公开(公告)日：2012-12-18

    申请号：US11958675

    申请日：2007-12-18

    申请人： Marta Karczewicz ,  Hyukjune Chung ,  Phoom Sagetong

    发明人： Marta Karczewicz ,  Hyukjune Chung ,  Phoom Sagetong

    IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04

    CPC分类号： H04N19/463 ,  H04N19/13 ,  H04N19/176 ,  H04N19/196 ,  H04N19/30 ,  H04N19/61

    摘要： Variable length coding (VLC) techniques are described for coded block patterns (CBPs) used in block-based video coding. In VLC of CBPs, patterns of transform coefficients that are more likely to occur are coded with shorter codes, while patterns of coefficients that are less likely to occur are coded with longer codes. According to the techniques of this disclosure, several different VLC tables are stored in the coding devices. During the encoding and decoding processes, one of the VLC tables is selected and used to perform the coding of CBPs for a given video block. The table may be selected based on a number of neighboring video blocks to the current video block that include non-zero transform coefficients. The techniques may be particularly useful in the coding of video blocks of enhancement layers in scalable video coding (SVC).

    摘要翻译： 对基于块的视频编码中使用的编码块模式（CBP）描述了可变长度编码（VLC）技术。 在CBP的VLC中，更可能发生的变换系数的模式用较短的代码进行编码，而不太可能发生的系数模式用较长的代码进行编码。 根据本公开的技术，几个不同的VLC表被存储在编码装置中。 在编码和解码过程中，选择VLC表之一并用于对给定的视频块执行CBP的编码。 可以基于包括非零变换系数的当前视频块的相邻视频块的数量来选择该表。 这些技术在可扩展视频编码（SVC）中的增强层的视频块的编码中可能特别有用。

    EXTENDED INTER-LAYER CODING FOR SPATIAL SCABILITY
    5.
    发明申请
    EXTENDED INTER-LAYER CODING FOR SPATIAL SCABILITY 有权
    用于空间稳定性的扩展层间编码

    公开(公告)号：US20080165850A1

    公开(公告)日：2008-07-10

    申请号：US11958692

    申请日：2007-12-18

    申请人： Phoom Sagetong ,  Hyukjune Chung ,  Marta Karczewicz

    发明人： Phoom Sagetong ,  Hyukjune Chung ,  Marta Karczewicz

    IPC分类号： H04N7/26

    CPC分类号： H04N19/59 ,  H04N19/33

    摘要： This disclosure describes techniques for coding information in a scalable video coding (SVC) scheme that supports spatial scalability. In one example, a method of coding information in a SVC scheme comprises coding first video blocks defined in a base layer of the SVC scheme, and coding second video blocks defined in an enhancement layer of the SVC scheme, wherein the second video blocks provide spatial scalability enhancement relative to the first video blocks. The coding of the second video blocks includes performing inter-layer prediction for the enhancement layer relative to the base layer for a first subset of the second video blocks that fully overlap the first video blocks, and performing inter-layer prediction for the enhancement layer relative to the base layer for a second subset of the second video blocks that partially overlap the first video blocks.

    摘要翻译： 本公开描述了用于在支持空间可扩展性的可伸缩视频编码（SVC）方案中对信息进行编码的技术。 在一个示例中，在SVC方案中编码信息的方法包括编码在SVC方案的基本层中定义的第一视频块，以及编码在SVC方案的增强层中定义的第二视频块，其中第二视频块提供空间 相对于第一视频块的可扩展性增强。 第二视频块的编码包括对于与第一视频块完全重叠的第二视频块的第一子集，相对于基本层执行增强层的层间预测，以及对增强层相对地执行层间预测 到与第一视频块部分重叠的第二视频块的第二子集的基本层。

    Content- and link-dependent coding adaptation for multimedia telephony
    10.
    发明授权
    Content- and link-dependent coding adaptation for multimedia telephony 有权
    针对多媒体电话的内容和链路相关编码适应

    公开(公告)号：US08537197B2

    公开(公告)日：2013-09-17

    申请号：US11972594

    申请日：2008-01-10

    申请人： Harinath Garudadri ,  Chandru Sundarraman ,  Gajinder Vij ,  Naveen B. Srinivasamurthy ,  Phoom Sagetong ,  Hyukjune Chung

    发明人： Harinath Garudadri ,  Chandru Sundarraman ,  Gajinder Vij ,  Naveen B. Srinivasamurthy ,  Phoom Sagetong ,  Hyukjune Chung

    IPC分类号： H04N7/14

    CPC分类号： H04L65/4092 ,  H04L47/10 ,  H04L65/1059 ,  H04L65/602 ,  H04L65/80 ,  H04W72/08

    摘要： This disclosure describes techniques that can facilitate multimedia telephony. In one example, a method for communication of multimedia data comprises determining a first level of throughput associated with multimedia data communication from a first access terminal to a network, determining a second level of throughput associated with multimedia data communication from the network to a second access terminal based on feedback from the second access terminal to the first access terminal via the network, determining a budget associated with communication of a video unit of the multimedia data, and coding the video unit of the multimedia data based on the budget and the first and second levels of throughput.

    摘要翻译： 本公开描述了可以促进多媒体电话的技术。 在一个示例中，用于通信多媒体数据的方法包括确定与从第一接入终端到网络的多媒体数据通信相关联的吞吐量的第一级别，确定与从网络到第二接入的多媒体数据通信相关联的吞吐量的第二级别 基于从所述第二接入终端经由所述网络到所述第一接入终端的反馈，确定与所述多媒体数据的视频单元的通信相关联的预算，以及基于所述预算对所述多媒体数据的视频单元进行编码，以及 第二级吞吐量。