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    • 52. 发明申请
    • ARRANGING SUB-TRACK FRAGMENTS FOR STREAMING VIDEO DATA
    • 安排用于流动视频数据的子轨道片段
    • WO2012012575A1
    • 2012-01-26
    • PCT/US2011/044745
    • 2011-07-20
    • QUALCOMM INCORPORATEDCHEN, YingKARCZEWICZ, Marta
    • CHEN, YingKARCZEWICZ, Marta
    • H04N21/2343H04N21/236H04N21/845H04L29/08
    • H04N21/234327H04L65/4084H04L65/602H04L65/604H04L65/607H04L67/04H04N21/23608H04N21/4424H04N21/462H04N21/8456
    • A video file may include movie fragments divided into sub-track fragments that store all pictures of common hierarchical levels for the respective hierarchical levels. In one example, an apparatus includes an interface configured to output data according to a streaming protocol, and a control unit configured to assemble encoded video data into a plurality of sub-track fragments, each of the sub-track fragments comprising a plurality of hierarchically related video pictures of the encoded video data, wherein the plurality of hierarchically related video pictures each correspond to a common hierarchical layer receiving a request in accordance with the streaming protocol, wherein the request specifies at least one of the plurality of sub-track fragments, and, in response to the request, cause the interface to output the plurality of hierarchically related video pictures of the at least one of the plurality of sub-track fragments.
    • 视频文件可以包括被划分成子轨道片段的电影片段,其存储针对各个层级的公共分层级别的所有图片。 在一个示例中,设备包括被配置为根据流传输协议输出数据的接口,以及被配置为将编码的视频数据组合成多个子轨道片段的控制单元,每个子轨道片段包括多个分层 编码视频数据的相关视频图像,其中所述多个分层相关视频图像各自对应于根据流传输协议接收请求的公共分层,其中所述请求指定所述多个子轨道片段中的至少一个, 并且响应于该请求,使得接口输出多个子轨道片段中的至少一个的多个分级相关视频图像。
    • 53. 发明申请
    • VIDEO SWITCHING FOR STREAMING VIDEO DATA
    • 用于流动视频数据的视频切换
    • WO2012009454A1
    • 2012-01-19
    • PCT/US2011/043885
    • 2011-07-13
    • QUALCOMM INCORPORATEDCHEN, YingKARCZEWICZ, Marta
    • CHEN, YingKARCZEWICZ, Marta
    • H04N7/26H04N7/46H04N7/50H04N13/00H04N21/2343H04N21/44
    • H04N21/23439
    • In one example, an apparatus includes a processor configured to provide information to a client device for accessing data for a first representation of a video sequence and a second representation of the video sequence, and to provide information to the client device indicating that the client device can, during transmission of the data for the first representation, switch to the second representation without experiencing a presentation gap when displaying the video sequence and without simultaneously executing more than one decoder to decode the data for the first representation and the second representation during the switch, in response to a first request from the client device to retrieve data from the first representation. In this manner, the client device may use the information to perform seamless switching between the representations.
    • 在一个示例中,设备包括处理器,其被配置为向客户端设备提供信息以访问用于视频序列的第一表示和视频序列的第二表示的数据,并且向客户端设备提供指示客户端设备 在传输第一表示的数据期间,当在显示视频序列时,不会同时执行多于一个的解码器来解码用于第一表示的数据和第二表示的切换期间切换到第二表示而不会出现呈现间隙 响应于来自客户端设备的从第一表示中检索数据的第一请求。 以这种方式,客户端设备可以使用该信息来执行表示之间的无缝切换。
    • 54. 发明申请
    • SIMPLIFIED DISPARITY DERIVED DEPTH CODING IN THREE-DIMENSIONAL (3D) VIDEO CODING
    • 三维(3D)视频编码中简化的差异化深度编码
    • WO2015135174A1
    • 2015-09-17
    • PCT/CN2014/073358
    • 2014-03-13
    • QUALCOMM INCORPORATEDLIU, HongbinCHEN, Ying
    • LIU, HongbinCHEN, Ying
    • H04N13/00
    • H04N19/597H04N19/52
    • This disclosure describes techniques for simplifying depth inter mode coding in a three-dimensional (3D) video coding process, such as 3D-HEVC. The techniques may include generating a motion parameter candidate list for a current depth prediction unit (PU) in a depth component of a current view of the multiview video data. The techniques may include deriving one or more candidates for the motion parameter candidate list based at least in part on accessing a reference texture block. The techniques may include deriving a derived depth coding (DDD) candidate for the motion parameter candidate list based only on the reference texture block that is already accessed for deriving the one or more candidates for the motion parameter candidate list. The described techniques include decoding or encoding motion information for the current depth PU based on the motion parameter candidate list for the current depth PU.
    • 本公开描述了用于简化3D-HEVC等三维(3D)视频编码处理中的深度帧间编码的技术。 所述技术可以包括在多视点视频数据的当前视图的深度分量中生成用于当前深度预测单元(PU)的运动参数候选列表。 该技术可以包括至少部分地基于访问参考纹理块来导出用于运动参数候选列表的一个或多个候选。 这些技术可以包括仅基于已经被访问以用于导出运动参数候选列表的一个或多个候选者的参考纹理块来导出用于运动参数候选列表的导出深度编码(DDD)候选。 所描述的技术包括基于当前深度PU的运动参数候选列表来解码或编码当前深度PU的运动信息。
    • 55. 发明申请
    • CONSTRAINED DEPTH INTRA MODE CODING FOR 3D VIDEO CODING
    • 用于3D视频编码的约束深度内部模式编码
    • WO2015135169A1
    • 2015-09-17
    • PCT/CN2014/073346
    • 2014-03-13
    • QUALCOMM INCORPORATEDLIU, HongbinCHEN, Ying
    • LIU, HongbinCHEN, Ying
    • H04N19/597
    • H04N19/597H04N19/11H04N19/119H04N19/159H04N19/176H04N19/593H04N19/70H04N19/96
    • This disclosure describes techniques for constraining depth intra mode coding in a three-dimensional (3D) video coding process, such as 3D-High Efficiency Video Coding (3D-HEVC). In some examples, the techniques for constraining depth intra mode coding may prevent transform tree nodes from being split into sub-transform tree nodes when a depth prediction unit that corresponds to the transform tree node is predicted according to a depth modeling mode (DMM). In further examples, the techniques for constraining depth intra mode coding may prevent the DMM mode from being used when the maximum transform unit size that corresponds to a depth prediction unit is greater than the size of the depth prediction unit. The techniques for constraining depth intra mode coding may prevent characteristics of the DMM prediction modes used in 3D-HEVC and characteristics of the transform tree subdivision used in 3D-HEVC from interfering with each other.
    • 本公开描述了在3D-高效率视频编码(3D-HEVC)三维(3D)视频编码处理中约束深度帧内模式编码的技术。 在一些示例中,当根据深度建模模式(DMM)预测与变换树节点相对应的深度预测单元时,用于约束深度帧内模式编码的技术可以防止变换树节点被分割成子变换树节点。 在进一步的示例中,当对应于深度预测单元的最大变换单位大小大于深度预测单元的大小时,用于约束深度帧内模式编码的技术可以防止DMM模式被使用。 限制深度帧内模式编码的技术可以防止在3D-HEVC中使用的DMM预测模式的特征和在3D-HEVC中使用的变换树细分的特征彼此干扰。
    • 58. 发明申请
    • RESIDUAL CODING FOR DEPTH INTRA PREDICTION MODES
    • 深度内部预测模式的残留编码
    • WO2015042751A1
    • 2015-04-02
    • PCT/CN2013/001176
    • 2013-09-27
    • QUALCOMM INCORPORATEDLIU, HongbinCHEN, YingZHANG, LiZHAO, Xin
    • LIU, HongbinCHEN, YingZHANG, LiZHAO, Xin
    • H04N19/00
    • H04N19/597H04N19/11H04N19/176H04N19/18H04N19/70
    • A video coder may perform a simplified depth coding (SDC) mode, including simplified residual coding, to code a depth block according to any of a variety of, e.g., at least three, depth intra prediction modes. For example, the video coder may perform the SDC mode for coding a depth block according to depth modeling mode (DMM) 3, DMM 4, or a region boundary chain coding mode. In such examples, the video coder may partition the depth block, and code respective DC residual values for each partition. In some examples, the video coder may perform the SDC mode for coding a depth block according to an intra prediction mode, e.g., an HEVC base specification intra prediction mode, such as a DC intra prediction mode or one of the directional intra prediction modes. In such examples, the video coder may code a single DC residual value for the depth block.
    • 视频编码器可以执行简化的深度编码(SDC)模式,包括简化的残差编码,以根据各种,例如至少三个深度帧内预测模式中的任何一个对深度块进行编码。 例如,视频编码器可以根据深度建模模式(DMM)3,DMM 4或区域边界链编码模式执行用于对深度块进行编码的SDC模式。 在这样的示例中,视频编码器可以对深度块进行分区,并为每个分区编码相应的DC残留值。 在一些示例中,视频编码器可以执行根据帧内预测模式(例如,诸如DC帧内预测模式或诸如定向帧内预测模式之一的HEVC基本规范帧内预测模式)对深度块进行编码的SDC模式。 在这样的示例中,视频编码器可以为深度块编码一个DC剩余值。