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    CODED BLOCK FLAG CODING FOR 4:2:2 SAMPLE FORMAT IN VIDEO CODING
    2.
    发明申请
    CODED BLOCK FLAG CODING FOR 4:2:2 SAMPLE FORMAT IN VIDEO CODING 有权
    用于4：2：2的视频编码样本格式的编码块标记编码

    公开(公告)号：US20140092983A1

    公开(公告)日：2014-04-03

    申请号：US14038524

    申请日：2013-09-26

    Applicant: QUALCOMM Incorporated

    Inventor： Rajan Laxman JOSHI ,  Liwei GUO ,  Marta KARCZEWICZ

    IPC: H04N7/30

    CPC classification number: H04N19/593 ,  H04N19/11 ,  H04N19/176 ,  H04N19/186 ,  H04N19/645 ,  H04N19/70 ,  H04N19/96

    Abstract: Systems, methods, and devices for video coding that may obtain a rectangular chroma block having first and second square sub-blocks are disclosed. These systems, methods, and devices may also decode a first coded block flag (CBF) for the first square sub-block to indicate whether the first square sub-block includes at least one nonzero transform coefficient. These systems, methods, and devices may also decode a second CBF for the second square sub-block to indicate whether the second square sub-block includes at least one nonzero transform coefficient and not decoding a CBF for the rectangular chroma block.

    Abstract translation: 公开了可获得具有第一和第二平方子块的矩形色度块的用于视频编码的系统，方法和装置。 这些系统，方法和设备还可以解码用于第一平方子块的第一编码块标志（CBF），以指示第一平方子块是否包括至少一个非零变换系数。 这些系统，方法和设备还可以解码用于第二平方子块的第二CBF，以指示第二平方子块是否包括至少一个非零变换系数，并且不解码矩形色度块的CBF。

    SYSTEM AND METHOD FOR SELECTING QUANTIZATION PARAMETER (QP) IN DISPLAY STREAM COMPRESSION (DSC)
    4.
    发明申请
    SYSTEM AND METHOD FOR SELECTING QUANTIZATION PARAMETER (QP) IN DISPLAY STREAM COMPRESSION (DSC) 有权
    在显示流程压缩（DSC）中选择定量参数（QP）的系统和方法

    公开(公告)号：US20150296206A1

    公开(公告)日：2015-10-15

    申请号：US14685430

    申请日：2015-04-13

    Applicant: QUALCOMM Incorporated

    Inventor： Vijayaraghavan THIRUMALAI ,  Natan Haim JACOBSON ,  Rajan Laxman JOSHI

    IPC: H04N19/124 ,  H04N19/423 ,  H04N19/174 ,  H04N19/184 ,  H04N19/176

    CPC classification number: H04N19/124 ,  H04N19/15 ,  H04N19/152 ,  H04N19/174 ,  H04N19/176 ,  H04N19/423

    Abstract: An apparatus for coding video data according to certain aspects includes a memory for storing the video data and a processor. The memory includes a buffer. The processor is configured to receive the video data to be coded. The processor is further configured to determine a quantization parameter (QP) of a current block of the video data without considering a type of content of the video data and a rate-distortion model associated with the type of content. The processor is also configured to code the current block in a bitstream using the determined QP.

    Abstract translation: 根据某些方面的用于编码视频数据的装置包括用于存储视频数据的存储器和处理器。 内存包括一个缓冲区。 处理器被配置为接收要编码的视频数据。 处理器还被配置为在不考虑视频数据的内容的类型和与内容的类型相关联的速率失真模型的情况下，确定视频数据的当前块的量化参数（QP）。 处理器还被配置为使用所确定的QP对比特流中的当前块进行编码。

    UNIFORM GRANULARITY FOR QUANTIZATION MATRIX IN VIDEO CODING
    7.
    发明申请
    UNIFORM GRANULARITY FOR QUANTIZATION MATRIX IN VIDEO CODING 审中-公开
    用于量化矩阵在视频编码中的均匀度

    公开(公告)号：US20130272390A1

    公开(公告)日：2013-10-17

    申请号：US13863197

    申请日：2013-04-15

    Applicant: QUALCOMM INCORPORATED

    Inventor： Rajan Laxman JOSHI ,  Joel SOLE ROJALS ,  Marta KARCZEWICZ

    IPC: H04N7/26

    CPC classification number: H04N19/176 ,  H04N19/126 ,  H04N19/18 ,  H04N19/46

    Abstract: The techniques of this disclosure are directed toward the use of modified quantization parameter (QP) values to calculate quantized and dequantized transform coefficients of a video block with uniform QP granularity. Conventionally, when a quantization matrix is used during quantization and dequantization of transform coefficients, the quantization matrix entries act as scale factors of a quantizer step-step corresponding to a base QP value, which results in non-uniform QP granularity. To provide uniform QP granularity across all quantization matrix entries, the techniques include calculating modified QP values for transform coefficients based on associated quantization matrix entries used as offsets to a base QP value. At a video decoder, the techniques include calculating dequantized transform coefficients from quantized transform coefficients based on the modified QP values. At a video encoder, the techniques include calculating quantized transform coefficients from transform coefficients based on the modified QP values.

    Abstract translation: 本公开的技术涉及使用修改的量化参数（QP）值来计算具有均匀QP粒度的视频块的量化和去量化的变换系数。 通常，当在量化和变换系数的逆量化期间使用量化矩阵时，量化矩阵条目用作对应于基本QP值的量化器步长的比例因子，这导致不均匀的QP粒度。 为了在所有量化矩阵条目上提供均匀的QP粒度，该技术包括基于用作基本QP值的偏移的相关联的量化矩阵条目来计算变换系数的修正QP值。 在视频解码器中，技术包括基于经修改的QP值从量化变换系数计算去量化变换系数。 在视频编码器中，技术包括基于修改的QP值来计算来自变换系数的量化变换系数。

    SYSTEM AND METHOD FOR CODING IN BLOCK PREDICTION MODE FOR DISPLAY STREAM COMPRESSION (DSC)
    9.
    发明申请
    SYSTEM AND METHOD FOR CODING IN BLOCK PREDICTION MODE FOR DISPLAY STREAM COMPRESSION (DSC) 审中-公开
    用于显示流程压缩的块预测模式编码的系统和方法（DSC）

    公开(公告)号：US20150304675A1

    公开(公告)日：2015-10-22

    申请号：US14691378

    申请日：2015-04-20

    Applicant: QUALCOMM Incorporated

    Inventor： Natan Haim JACOBSON ,  Vijayaraghavan THIRUMALAI ,  Rajan Laxman JOSHI ,  Min DAI

    IPC: H04N19/50 ,  H04N19/124 ,  H04N19/61 ,  H04N19/176

    CPC classification number: H04N19/55 ,  H04N19/57 ,  H04N19/593

    Abstract: A system and method for coding a block of video data in block prediction mode for display stream compression (DSC) is disclosed. In one aspect, the method includes determining a candidate block to be used for predicting a current block in a current slice. The candidate block may be within a range of locations defined by one or more block prediction parameters. The method further includes determining, based on the candidate block and the current block, a prediction vector identifying a location of the candidate block with respect to the current block, and coding the current block in block prediction mode at least in part via signaling the prediction vector identifying the location of the candidate block with respect to the current block.

    Abstract translation: 公开了一种用于以块预测模式对显示流压缩（DSC）编码视频数据块的系统和方法。 一方面，该方法包括确定要用于预测当前片中的当前块的候选块。 候选块可以在由一个或多个块预测参数定义的位置的范围内。 该方法还包括基于候选块和当前块确定一个预测矢量，该预测矢量标识相对于当前块的候选块的位置，并且至少部分地通过发送预测来以块预测模式对当前块进行编码 标识候选块相对于当前块的位置的向量。

    SIGNALING LONG-TERM REFERENCE PICTURES FOR VIDEO CODING
    10.
    发明申请
    SIGNALING LONG-TERM REFERENCE PICTURES FOR VIDEO CODING 有权
    信号编码的长期参考图像

    公开(公告)号：US20140003538A1

    公开(公告)日：2014-01-02

    申请号：US13924016

    申请日：2013-06-21

    Applicant: QUALCOMM Incorporated

    Inventor： Adarsh Krishnan RAMASUBRAMONIAN ,  Ye-Kui WANG ,  Rajan Laxman JOSHI ,  Ying CHEN

    IPC: H04N7/26

    CPC classification number: H04N19/44 ,  H04N19/196 ,  H04N19/463 ,  H04N19/573 ,  H04N19/58 ,  H04N19/70

    Abstract: A video decoder may be configured to decode a first value representative of a difference between a base most significant bits (MSBs) value of a picture order count (POC) value of a current picture of video data and a first MSBs value of a first POC value of a first long-term reference picture of the video data, decode a second value representative of a difference between a second MSBs value of a second POC value of a second long-term reference picture of the video data and the first MSBs value, wherein the first POC value and the second POC value have different least significant bits values, and decode at least a portion of a current picture of the video data relative to at least one of the first long-term reference picture and the second long-term reference picture.

    Abstract translation: 视频解码器可以被配置为对表示视频数据的当前图像的图像顺序计数（POC）值的最基本最高有效位（POC）值与第一POC的第一MSB值之间的差的第一值进行解码 视频数据的第一长期参考图像的值，对表示视频数据的第二长期参考图片的第二POC值的第二MSB值与第一MSB值之间的差的第二值进行解码， 其中所述第一POC值和所述第二POC值具有不同的最低有效位值，并且相对于所述第一长期参考图片和所述第二长期参考图片中的至少一个来解码所述视频数据的当前图片的至少一部分 参考图片。

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