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    CODING DATA USING AN ENHANCED CONTEXT-ADAPTIVE BINARY ARITHMETIC CODING (CABAC) DESIGN
    51.
    发明申请
    CODING DATA USING AN ENHANCED CONTEXT-ADAPTIVE BINARY ARITHMETIC CODING (CABAC) DESIGN 审中-公开
    使用增强的自适应二进制算术编码（CABAC）设计编码数据

    公开(公告)号：US20160353111A1

    公开(公告)日：2016-12-01

    申请号：US15166132

    申请日：2016-05-26

    Applicant: QUALCOMM Incorporated

    Inventor： Li Zhang ,  Marta Karczewicz ,  Jianle Chen

    IPC: H04N19/13 ,  H04N19/174 ,  H04N19/159 ,  H04N19/577 ,  H04N19/126

    CPC classification number: H04N19/13 ,  H04N19/122 ,  H04N19/124 ,  H04N19/126 ,  H04N19/136 ,  H04N19/157 ,  H04N19/159 ,  H04N19/17 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/184 ,  H04N19/436 ,  H04N19/577 ,  H04N19/625 ,  H04N19/91

    Abstract: Context adaptive binary arithmetic coding (CABAC) techniques are generally described. Aspects of the techniques are generally directed to inheritance-based context initialization. An example video coding device includes a memory configured to store video data, and one or more processors. The processor(s) are configured to initialize context information for a current slice of a current picture by inheriting context information of a previously-coded block of a previously-coded picture of the stored video data as initialized context information for the current slice of the current picture. The processor(s) are further configured to code data of the current slice using the initialized context information.

    Abstract translation: 通常描述上下文自适应二进制算术编码（CABAC）技术。 技术方面通常涉及基于继承的上下文初始化。 示例性视频编码设备包括被配置为存储视频数据的存储器和一个或多个处理器。 处理器被配置为通过将存储的视频数据的先前编码的图像的先前编码的块的上下文信息继承为当前图像的当前片段的初始化上下文信息来初始化当前图片的当前片段的上下文信息 当前图片。 处理器还被配置为使用初始化的上下文信息来对当前片的数据进行编码。

    ADVANCED ARITHMETIC CODER
    52.
    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
    53.
    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。

    Sub-PU level advanced residual prediction
    54.
    发明授权
    Sub-PU level advanced residual prediction 有权
    次PU级高级残差预测

    公开(公告)号：US09426465B2

    公开(公告)日：2016-08-23

    申请号：US14463431

    申请日：2014-08-19

    Applicant: QUALCOMM Incorporated

    Inventor： Li Zhang ,  Ying Chen ,  Marta Karczewicz

    IPC: H04N19/51 ,  H04N19/597 ,  H04N19/52 ,  H04N19/96

    CPC classification number: H04N19/52 ,  H04N19/51 ,  H04N19/597 ,  H04N19/96

    Abstract: A prediction unit (PU) of a coding unit (CU) is split into two or more sub-PUs including a first sub-PU and a second sub-PU. A first motion vector of a first type is obtained for the first sub-PU and a second motion vector of the first type is obtained for the second sub-PU. A third motion vector of a second type is obtained for the first sub-PU and a fourth motion vector of the second type is obtained for the second sub-PU, such that the second type is different than the first type. A first portion of the CU corresponding to the first sub-PU is coded according to advanced residual prediction (ARP) using the first and third motion vectors. A second portion of the CU corresponding to the second sub-PU is coded according to ARP using the second and fourth motion vectors.

    Abstract translation: 编码单元（CU）的预测单元（PU）被分成包括第一子PU和第二子PU的两个或更多个子PU。 对于第一子PU获得第一类型的第一运动矢量，并且获得第二子PU的第一类型的第二运动矢量。 对于第一子PU获得第二类型的第三运动矢量，并且为第二子PU获得第二类型的第四运动矢量，使得第二类型不同于第一类型。 对应于第一子PU的CU的第一部分使用第一和第三运动向量根据高级剩余预测（ARP）进行编码。 使用第二和第四运动矢量，根据ARP对与第二子PU相对应的CU的第二部分进行编码。

    Depth coding modes signaling of depth data for 3D-HEVC
    55.
    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.

    QP DERIVATION AND OFFSET FOR ADAPTIVE COLOR TRANSFORM IN VIDEO CODING
    57.
    发明申请
    QP DERIVATION AND OFFSET FOR ADAPTIVE COLOR TRANSFORM IN VIDEO CODING 审中-公开
    用于视频编码中自适应色彩变换的QP衍生和偏移

    公开(公告)号：US20160100168A1

    公开(公告)日：2016-04-07

    申请号：US14876594

    申请日：2015-10-06

    Applicant: QUALCOMM Incorporated

    Inventor： Krishnakanth Rapaka ,  Li Zhang ,  Rajan Laxman Joshi ,  Marta Karczewicz

    IPC: H04N19/124 ,  H04N19/176 ,  H04N19/60 ,  H04N19/44

    CPC classification number: H04N19/124 ,  H04N19/12 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186 ,  H04N19/44 ,  H04N19/60 ,  H05K999/99

    Abstract: A device for decoding video data is configured to determine, based on a chroma sampling format for the video data, that adaptive color transform is enabled for one or more blocks of the video data; determine a quantization parameter for the one or more blocks based on determining that the adaptive color transform is enabled; and dequantize transform coefficients based on the determined quantization parameter. A device for decoding video data is configured to determine for one or more blocks of the video data that adaptive color transform is enabled; receive in a picture parameter set, one or more offset values in response to adaptive color transform being enabled; determine a quantization parameter for a first color component of a first color space based on a first of the one or more offset values; and dequantize transform coefficients based on the quantization parameter.

    Abstract translation: 用于解码视频数据的设备被配置为基于视频数据的色度采样格式来确定对于视频数据的一个或多个块启用自适应颜色变换; 基于确定所述自适应颜色变换被启用来确定所述一个或多个块的量化参数; 并且基于所确定的量化参数去量化变换系数。 用于对视频数据进行解码的设备被配置为为视频数据的一个或多个块确定自适应颜色变换被启用; 在图像参数集中接收响应于自适应颜色变换被启用的一个或多个偏移值; 基于所述一个或多个偏移值中的第一个来确定第一颜色空间的第一颜色分量的量化参数; 并基于量化参数去量化变换系数。

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