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    VIDEO INTRA-PREDICTION USING POSITION-DEPENDENT PREDICTION COMBINATION FOR VIDEO CODING
    92.
    发明申请
    VIDEO INTRA-PREDICTION USING POSITION-DEPENDENT PREDICTION COMBINATION FOR VIDEO CODING 有权

    公开(公告)号：US20170094285A1

    公开(公告)日：2017-03-30

    申请号：US15272034

    申请日：2016-09-21

    Applicant: QUALCOMM Incorporated

    Inventor： Amir Said ,  Xin Zhao ,  Jianle Chen ,  Marta Karczewicz

    IPC: H04N19/159 ,  H04N19/147 ,  H04N19/117 ,  H04N19/70 ,  H04N19/105 ,  H04N19/157

    Abstract: Techniques are described to improved video intra prediction using position-dependent prediction combination in video coding. In High Efficiency Video Encoding a set of 35 linear predictors are used for doing intra coding and prediction can be computed from either a nonfiltered or a filtered set of neighboring “reference” pixels, depending on the selected predictor mode and block size. Techniques of this disclosure may use a weighted combination of both the nonfiltered and filtered set of reference pixels to achieve better compression via improved prediction and therefore small residual, enable effective parallel computation of all sets of prediction values, and maintain low complexity via applying filtering only to a set of reference pixels and not to predicted values themselves.

    INTRA PREDICTION AND INTRA MODE CODING
    93.
    发明申请
    INTRA PREDICTION AND INTRA MODE CODING 审中-公开
    内部预测和内部模式编码

    公开(公告)号：US20160373743A1

    公开(公告)日：2016-12-22

    申请号：US15184118

    申请日：2016-06-16

    Applicant: QUALCOMM Incorporated

    Inventor： Xin Zhao ,  Jianle Chen ,  Li Zhang ,  Marta Karczewicz

    IPC: H04N19/11 ,  H04N19/174 ,  H04N19/139 ,  H04N19/176 ,  H04N19/70 ,  H04N19/82

    CPC classification number: H04N19/11 ,  H04N19/117 ,  H04N19/136 ,  H04N19/139 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/182 ,  H04N19/59 ,  H04N19/593 ,  H04N19/70 ,  H04N19/82

    Abstract: A device for decoding video data includes a memory configured to store the video data; and one or more processors configured to decode syntax information that indicates a selected intra prediction mode for the block of video data from among a plurality of intra prediction modes. The one or more processors apply an N-tap intra interpolation filter to neighboring reconstructed samples of the block of video data according to the selected intra prediction mode, wherein N is greater than 2. The one or more processors reconstruct the block of video data based on the filtered neighboring reconstructed samples according to the selected intra prediction mode.

    Abstract translation: 用于解码视频数据的设备包括被配置为存储视频数据的存储器; 以及一个或多个处理器，被配置为从多个帧内预测模式中解码指示用于视频数据块的所选帧内预测模式的语法信息。 一个或多个处理器根据所选择的帧内预测模式将N抽头内插滤波器应用于视频数据块的相邻重建样本，其中N大于2.一个或多个处理器重建基于视频数据的块 根据所选择的帧内预测模式对经滤波的相邻重建样本进行处理。

    ADVANCED ARITHMETIC CODER
    94.
    发明申请
    ADVANCED ARITHMETIC CODER 审中-公开
    高级算术编码器

    公开(公告)号：US20160353110A1

    公开(公告)日：2016-12-01

    申请号：US15166044

    申请日：2016-05-26

    Applicant: QUALCOMM Incorporated

    Inventor： Li Zhang ,  Jianle Chen ,  Xin Zhao ,  Xiang Li ,  Hongbin Liu ,  Ying Chen ,  Marta Karczewicz

    IPC: H04N19/13 ,  H04N19/70 ,  H04N19/42 ,  H04N19/174 ,  H04N19/159

    CPC classification number: H04N19/13 ,  H03M7/4018 ,  H03M7/6011 ,  H04N19/126 ,  H04N19/139 ,  H04N19/146 ,  H04N19/159 ,  H04N19/174 ,  H04N19/184 ,  H04N19/42 ,  H04N19/46 ,  H04N19/70 ,  H04N19/91

    Abstract: An example method of entropy coding video data includes determining a window size of a plurality of window sizes for a context of a plurality of contexts used in a context-adaptive coding process to entropy code a value for a syntax element of the video data; entropy coding, based on a probability state of the context, a bin of the value for the syntax element; updating a probability state of the context based on the window size and the coded bin. The example method also includes entropy coding a next bin with the same context based on the updated probability state of the context.

    Abstract translation: 熵编码视频数据的示例方法包括：确定用于上下文自适应编码处理中使用的多个上下文的上下文的多个窗口大小的窗口大小，以熵编码视频数据的语法元素的值; 熵编码，基于上下文的概率状态，语法元素的值的一个bin; 基于窗口尺寸和编码箱更新上下文的概率状态。 该示例方法还包括基于更新的上下文概率状态对具有相同上下文的下一个bin进行熵编码。

    ADVANCED ARITHMETIC CODER
    95.
    发明申请
    ADVANCED ARITHMETIC CODER 审中-公开
    高级算术编码器

    公开(公告)号：US20160353108A1

    公开(公告)日：2016-12-01

    申请号：US15166068

    申请日：2016-05-26

    Applicant: QUALCOMM Incorporated

    Inventor： Li Zhang ,  Jianle Chen ,  Xin Zhao ,  Xiang Li ,  Hongbin Liu ,  Ying Chen ,  Marta Karczewicz

    IPC: H04N19/126 ,  H04N19/174 ,  H04N19/139 ,  H04N19/13

    CPC classification number: H04N19/13 ,  H03M7/4018 ,  H03M7/6011 ,  H04N19/126 ,  H04N19/139 ,  H04N19/146 ,  H04N19/159 ,  H04N19/174 ,  H04N19/184 ,  H04N19/42 ,  H04N19/46 ,  H04N19/70 ,  H04N19/91

    Abstract: An example method of entropy coding video data includes obtaining a pre-defined initialization value for a context of a plurality of contexts used in a context-adaptive entropy coding process to entropy code a value for a syntax element in a slice of the video data, wherein the pre-defined initialization value is stored with N-bit precision; determining, using a look-up table and based on the pre-defined initialization value, an initial probability state of the context for the slice of the video data, wherein a number of possible probability states for the context is greater than two raised to the power of N; and entropy coding, based on the initial probability state of the context, a bin of the value for the syntax element.

    Abstract translation: 熵编码视频数据的示例方法包括：获得用于在上下文自适应熵编码处理中使用的多个上下文的上下文的预定义初始值，以熵编码视频数据片中语法元素的值， 其中预定义的初始化值以N位精度存储; 使用查找表并且基于预定义的初始化值来确定视频数据的切片的上下文的初始概率状态，其中上下文的可能概率状态的数量大于2 N的力量 以及基于上下文的初始概率状态的熵编码，用于语法元素的值的bin。

    Depth coding modes signaling of depth data for 3D-HEVC
    96.
    发明授权
    Depth coding modes signaling of depth data for 3D-HEVC 有权

    公开(公告)号：US09369708B2

    公开(公告)日：2016-06-14

    申请号：US14226012

    申请日：2014-03-26

    Applicant: QUALCOMM Incorporated

    Inventor： Li Zhang ,  Ying Chen ,  Xin Zhao

    IPC: H04N19/593 ,  H04N13/00 ,  H04N19/597 ,  H04N19/70 ,  H04N19/11 ,  H04N19/463 ,  H04N19/91

    CPC classification number: H04N19/593 ,  H04N13/161 ,  H04N19/11 ,  H04N19/463 ,  H04N19/597 ,  H04N19/70 ,  H04N19/91 ,  H04N2213/005

    Abstract: Techniques are described for encoding and decoding depth data for three-dimensional (3D) video data represented in a multiview plus depth format using depth coding modes that are different than high-efficiency video coding (HEVC) coding modes. Examples of additional depth intra coding modes available in a 3D-HEVC process include at least two of a Depth Modeling Mode (DMM), a Simplified Depth Coding (SDC) mode, and a Chain Coding Mode (CCM). In addition, an example of an additional depth inter coding mode includes an Inter SDC mode. In one example, the techniques include signaling depth intra coding modes used to code depth data for 3D video data in a depth modeling table that is separate from the HEVC syntax. In another example, the techniques of this disclosure include unifying signaling of residual information of depth data for 3D video data across two or more of the depth coding modes.

    WEDGELET PATTERN EXTENSION FOR DEPTH INTRA CODING
    98.
    发明申请
    WEDGELET PATTERN EXTENSION FOR DEPTH INTRA CODING 有权

    公开(公告)号：US20150103906A1

    公开(公告)日：2015-04-16

    申请号：US14513839

    申请日：2014-10-14

    Applicant: QUALCOMM Incorporated

    Inventor： Xin Zhao ,  Li Zhang ,  Ying Chen ,  Marta Karczewicz

    IPC: H04N19/11 ,  H04N19/46 ,  H04N19/593

    CPC classification number: H04N19/11 ,  H04N19/17 ,  H04N19/46 ,  H04N19/593 ,  H04N19/597

    Abstract: Techniques are described determining a partition pattern for intra-prediction encoding or decoding a depth block from a partition pattern of one or more partition patterns associated with smaller sized blocks. A video encoder may intra-prediction encode the depth block based on the determined partition pattern, and a video decoder may intra-prediction decode the depth block based on the determine partition pattern.

    Abstract translation: 描述了技术，从与较小尺寸块相关联的一个或多个分区模式的分区模式确定用于帧内预测编码或解码深度块的分区模式。 视频编码器可以基于确定的分区模式对深度块进行帧内预测编码，并且视频解码器可以基于确定分区模式对深度块进行帧内预测解码。

    DEPTH CODING MODES SIGNALING OF DEPTH DATA FOR 3D-HEVC
    99.
    发明申请
    DEPTH CODING MODES SIGNALING OF DEPTH DATA FOR 3D-HEVC 有权

    公开(公告)号：US20140301454A1

    公开(公告)日：2014-10-09

    申请号：US14226012

    申请日：2014-03-26

    Applicant: QUALCOMM Incorporated

    Inventor： Li Zhang ,  Ying Chen ,  Xin Zhao

    IPC: H04N19/593 ,  H04N13/00

    CPC classification number: H04N19/593 ,  H04N13/161 ,  H04N19/11 ,  H04N19/463 ,  H04N19/597 ,  H04N19/70 ,  H04N19/91 ,  H04N2213/005

    Abstract: Techniques are described for encoding and decoding depth data for three-dimensional (3D) video data represented in a multiview plus depth format using depth coding modes that are different than high-efficiency video coding (HEVC) coding modes. Examples of additional depth intra coding modes available in a 3D-HEVC process include at least two of a Depth Modeling Mode (DMM), a Simplified Depth Coding (SDC) mode, and a Chain Coding Mode (CCM). In addition, an example of an additional depth inter coding mode includes an Inter SDC mode. In one example, the techniques include signaling depth intra coding modes used to code depth data for 3D video data in a depth modeling table that is separate from the HEVC syntax. In another example, the techniques of this disclosure include unifying signaling of residual information of depth data for 3D video data across two or more of the depth coding modes.

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