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    CONTENT-ADAPTIVE APPLICATION OF FIXED TRANSFER FUNCTION TO HIGH DYNAMIC RANGE (HDR) AND/OR WIDE COLOR GAMUT (WCG) VIDEO DATA
    22.
    发明申请
    CONTENT-ADAPTIVE APPLICATION OF FIXED TRANSFER FUNCTION TO HIGH DYNAMIC RANGE (HDR) AND/OR WIDE COLOR GAMUT (WCG) VIDEO DATA 审中-公开
    自适应转换功能适用于高动态范围（HDR）和/或宽彩色游戏（WCG）视频数据

    公开(公告)号：US20160360215A1

    公开(公告)日：2016-12-08

    申请号：US15176034

    申请日：2016-06-07

    Applicant: QUALCOMM Incorporated

    Inventor： Dmytro Rusanovskyy ,  Sungwon Lee ,  Done Bugdayci Sansli ,  Joel Sole Rojals ,  Adarsh Krishnan Ramasubramonian ,  Marta Karczewicz

    IPC: H04N19/169 ,  H04N19/615 ,  H04N19/186

    CPC classification number: H04N19/1887 ,  H04N19/117 ,  H04N19/136 ,  H04N19/169 ,  H04N19/186 ,  H04N19/615 ,  H04N19/85 ,  H04N19/98

    Abstract: This disclosure relates to processing video data, including processing video data to conform to a high dynamic range (HDR)/wide color gamut (WCG) color container. The techniques apply, on an encoding side, pre-processing of color values prior to application of a static transfer function and/or apply post-processing on the output from the application of the static transfer function. By applying pre-processing, the examples may generate color values that when compacted into a different dynamic range by application of the static transfer function linearize the output codewords. By applying post-processing, the examples may increase signal to quantization noise ratio. The examples may apply the inverse of the operations on the encoding side on the decoding side to reconstruct the color values.

    Abstract translation: 本公开涉及处理视频数据，包括处理视频数据以符合高动态范围（HDR）/宽色域（WCG）颜色容器。 该技术在编码方面适用于在施加静态传递函数之前对颜色值进行预处理和/或对静态传递函数的应用的输出应用后处理。 通过应用预处理，这些示例可以产生当通过应用静态传递函数将输出码字线性化时压缩成不同动态范围的颜色值。 通过应用后处理，这些示例可以将信号增加到量化噪声比。 这些示例可以将解码侧的编码侧的操作的倒数应用于重构颜色值。

    ADAPTIVE CONSTANT-LUMINANCE APPROACH FOR HIGH DYNAMIC RANGE AND WIDE COLOR GAMUT VIDEO CODING
    23.
    发明申请
    ADAPTIVE CONSTANT-LUMINANCE APPROACH FOR HIGH DYNAMIC RANGE AND WIDE COLOR GAMUT VIDEO CODING 审中-公开
    高动态范围和宽彩色游戏视频编码的自适应恒定方法

    公开(公告)号：US20160360214A1

    公开(公告)日：2016-12-08

    申请号：US15175570

    申请日：2016-06-07

    Applicant: QUALCOMM Incorporated

    Inventor： Joel Sole Rojals ,  Sungwon Lee ,  Dmytro Rusanovskyy ,  Adarsh Krishnan Ramasubramonian ,  Done Bugdayci Sansli ,  Marta Karczewicz

    IPC: H04N19/187 ,  H04N19/136 ,  H04N19/132 ,  H04N19/182 ,  H04N19/176

    CPC classification number: H04N19/187 ,  H04N1/64 ,  H04N5/20 ,  H04N9/68 ,  H04N19/12 ,  H04N19/132 ,  H04N19/136 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186 ,  H04N19/46

    Abstract: A device may determine, based on data in a bitstream, a luma sample (Y) of a pixel, a Cb sample of the pixel, and the Cr sample of the pixel. Furthermore, the device may obtain, from the bitstream, a first scaling factor and a second scaling factor. Additionally, the device may determine, based on the first scaling factor, the Cb sample for the pixel, and Y, a converted B sample (B′) for the pixel. The device may determine, based on the second scaling factor, the Cr sample for the pixel, and Y, a converted R sample (R′) for the pixel. The device may apply an electro-optical transfer function (EOTF) to convert Y′, R′, and B′ to a luminance sample for the pixel, a R sample for the pixel, and a B sample for the pixel, respectively.

    Abstract translation: 设备可以基于比特流中的数据来确定像素的亮度样本（Y），像素的Cb样本和像素的Cr样本。 此外，设备可以从比特流获得第一缩放因子和第二缩放因子。 另外，设备可以基于第一缩放因子确定像素的Cb样本，以及Y，用于像素的转换的B样本（B'）。 该装置可以基于第二比例因子确定该像素的Cr样本，并且Y确定该像素的经转换的R个样本（R'）。 该装置可以应用电光传递函数（EOTF）来将Y'，R'和B'转换为像素的亮度样本，像素的R采样和像素的B采样。

    DYNAMIC RANGE ADJUSTMENT FOR HIGH DYNAMIC RANGE AND WIDE COLOR GAMUT VIDEO CODING
    24.
    发明申请
    DYNAMIC RANGE ADJUSTMENT FOR HIGH DYNAMIC RANGE AND WIDE COLOR GAMUT VIDEO CODING 审中-公开
    用于高动态范围和宽彩色游戏视频编码的动态范围调整

    公开(公告)号：US20160309154A1

    公开(公告)日：2016-10-20

    申请号：US15099256

    申请日：2016-04-14

    Applicant: QUALCOMM Incorporated

    Inventor： Dmytro Rusanovskyy ,  Done Bugdayci Sansli ,  Joel Sole Rojals ,  Marta Karczewicz ,  Sungwon Lee ,  Adarsh Krishnan Ramasubramonian

    IPC: H04N19/136 ,  G06T5/00 ,  H04N19/124 ,  H04N19/176 ,  G06T7/40 ,  H04N19/70

    Abstract: This disclosure relates to processing video data, including processing video data to conform to a high dynamic range/wide color gamut (HDR/WCG) color container. As will be explained in more detail below, the techniques of the disclosure including dynamic range adjustment (DRA) parameters and apply the DRA parameters to video data in order to make better use of an HDR/WCG color container. The techniques of this disclosure may also include signaling syntax elements that allow a video decoder or video post processing device to reverse the DRA techniques of this disclosure to reconstruct the original or native color container of the video data.

    Abstract translation: 本公开涉及处理视频数据，包括处理视频数据以符合高动态范围/宽色域（HDR / WCG）颜色容器。 如下面将更详细地解释的，本公开的技术包括动态范围调整（DRA）参数并将DRA参数应用于视频数据，以便更好地利用HDR / WCG颜色容器。 本公开的技术还可以包括允许视频解码器或视频后处理设备反转本公开的DRA技术以重建视频数据的原始或本机颜色容器的信令语法元素。

    LOW COMPLEXITY CODING BASED ON DYNAMIC MODE DECISION BRANCHING FOR LARGEST CODING UNITS
    25.
    发明申请
    LOW COMPLEXITY CODING BASED ON DYNAMIC MODE DECISION BRANCHING FOR LARGEST CODING UNITS 有权
    基于动态模式决策分支的低复杂度编码，用于大型编码单元

    公开(公告)号：US20160134876A1

    公开(公告)日：2016-05-12

    申请号：US14536216

    申请日：2014-11-07

    Applicant: QUALCOMM Incorporated

    Inventor： In Suk Chong ,  Sungwon Lee ,  Cheng-Teh Hsieh ,  Marta Karczewicz

    IPC: H04N19/176 ,  H04N19/122 ,  H04N19/139 ,  H04N19/105

    CPC classification number: H04N19/176 ,  H04N19/103 ,  H04N19/105 ,  H04N19/122 ,  H04N19/137 ,  H04N19/139

    Abstract: Provided are techniques for low complexity video coding. For example, a video coder may be configured to calculate a first sum of absolute difference (SAD) value between a CU block and a corresponding block in a reference frame for the largest coding unit (LCU). The video coder may define conditions (e.g., background and/or homogeneous conditions) for the branching based at least in part on the first SAD value. The video coder may also determine the branching based on detecting the background or homogeneous condition, the branching including a first branch corresponding to both a first CU size of the CU block and a second CU size of a sub-block of the CU block. The video coder may then set the first branch to correspond to the first CU size, if the first CU size or the second CU size satisfies the background condition.

    Abstract translation: 提供了用于低复杂度视频编码的技术。 例如，视频编码器可以被配置为计算CU块和用于最大编码单元（LCU）的参考帧中的对应块之间的绝对差（SAD）值的第一和。 视频编码器可以至少部分地基于第一SAD值来定义用于分支的条件（例如，背景和/或均匀条件）。 视频编码器还可以基于检测背景或均匀条件来确定分支，该分支包括对应于CU块的第一CU大小和CU块的子块的第二CU大小的第一分支。 如果第一CU大小或第二CU大小满足背景条件，则视频编码器然后可以将第一分支设置为对应于第一CU大小。

    Merge candidates for motion vector prediction for video coding
    29.
    发明授权
    Merge candidates for motion vector prediction for video coding 有权

    公开(公告)号：US10560718B2

    公开(公告)日：2020-02-11

    申请号：US15591813

    申请日：2017-05-10

    Applicant: QUALCOMM Incorporated

    Inventor： Sungwon Lee ,  Wei-Jung Chien ,  Li Zhang ,  Marta Karczewicz

    IPC: H04N19/56 ,  H04N19/122 ,  H04N19/176

    Abstract: A method of decoding video data includes constructing a motion vector candidate list of merge candidates for the current block of video data based on motion information from a number of neighboring blocks relative to the current block, wherein the number of neighboring blocks considered for the motion vector candidate list is based on the size of the current block, and wherein the number of neighboring blocks is greater than 5. In some examples, the method includes deriving a histogram of motion vector information for the neighboring blocks, and constructing the motion vector candidate list based on the derived histogram.

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