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    SYSTEM FOR CODING HIGH DYNAMIC RANGE AND WIDE COLOR GAMUT SEQUENCES
    2.
    发明申请
    SYSTEM FOR CODING HIGH DYNAMIC RANGE AND WIDE COLOR GAMUT SEQUENCES 审中-公开
    用于编码高动态范围和宽彩色游戏序列的系统

    公开(公告)号：WO2017015564A1

    公开(公告)日：2017-01-26

    申请号：PCT/US2016/043571

    申请日：2016-07-22

    Applicant: ARRIS ENTERPRISES LLC

    Inventor： MINOO, Koohyar ,  GU, Zhouye ,  BAYLON, David M. ,  LUTHRA, Ajay

    IPC: H04N19/172 ,  H04N19/46 ,  H04N19/117 ,  H04N19/136 ,  H04N19/36

    CPC classification number: H04N19/124 ,  H04N19/117 ,  H04N19/136 ,  H04N19/172 ,  H04N19/174 ,  H04N19/179 ,  H04N19/182 ,  H04N19/186 ,  H04N19/36 ,  H04N19/46

    Abstract: A method of encoding a digital video data applies adaptive pre-processing to data representing high dynamic range (HDR) and/or wide color gamut (WCG) image data prior to encoding and complementary post-processing to the data after decoding in order to allow at least partial reproduction of the HDR and/or WCG data. The example methods apply one or more color space conversions, and a perceptual transfer functions to the data prior to quantization. The example methods apply inverse perceptual transfer functions and inverse color space conversions after decoding to recover the HDR and/or WCG data. The transfer functions are adaptive so that different transfer functions may be applied to video data sets including different groups of frames, frames or processing windows in a single frame. Information on the data set and information on the applied transfer function is passed as metadata from the encoder to the decoder.

    Abstract translation: 对数字视频数据进行编码的方法对编码之后的高动态范围（HDR）和/或宽色域（WCG）图像数据的数据应用自适应预处理，以便在解码之后对数据进行补充后处理，以便允许 至少部分再现HDR和/或WCG数据。 示例性方法应用一个或多个颜色空间转换，并且在量化之前将感知传递函数应用于数据。 示例性方法在解码之后应用反向感知传递函数和反色彩空间转换以恢复HDR和/或WCG数据。 传递函数是自适应的，使得不同的传递函数可以应用于包括单个帧中的不同组帧，帧或处理窗口的视频数据集。 关于数据集的信息和应用传递函数的信息作为元数据从编码器传递到解码器。

    SYSTEM FOR RESHAPING AND CODING HIGH DYNAMIC RANGE AND WIDE COLOR GAMUT SEQUENCES
    4.
    发明申请
    SYSTEM FOR RESHAPING AND CODING HIGH DYNAMIC RANGE AND WIDE COLOR GAMUT SEQUENCES 审中-公开
    用于改变和编码高动态范围和宽彩色游戏序列的系统

    公开(公告)号：WO2017053852A1

    公开(公告)日：2017-03-30

    申请号：PCT/US2016/053521

    申请日：2016-09-23

    Applicant: ARRIS ENTERPRISES LLC

    Inventor： MINOO, Koohyar ,  BAYLON, David M. ,  GU, Zhouye ,  YU, Yue ,  LUTHRA, Ajay

    IPC: H04N19/98 ,  H04N19/70 ,  G06T5/00

    CPC classification number: H04N19/124 ,  G06T5/007 ,  G06T2207/20208 ,  H04N19/174 ,  H04N19/177 ,  H04N19/186 ,  H04N19/44 ,  H04N19/70 ,  H04N19/98

    Abstract: A video data encoder generates a first metadata structure to describe one or more transfer functions to be applied by a decoder to reshape decoded video data into video data. The encoder segments a transfer function relative to P pivot points. It then allocates P cells in the metadata structure for storing the P pivot points. Each transfer function segment is fitted to a respective equation having N coefficients based on the order of the equation. The encoder allocates N+1 cells for each pivot point except for the P th pivot point and stores the number N in the first cell and the N coefficients in the remaining cells. The encoder generates a second metadata structure, associated with a video data set, that includes data identifying the transfer function to be applied to the video data set. The encoder encodes the video data including the first and second metadata structures.

    Abstract translation: 视频数据编码器生成第一元数据结构以描述由解码器应用的一个或多个传送函数，以将解码的视频数据重新形成视频数据。 编码器相对于P个枢轴点分段传递函数。 然后，它将P细胞分配到用于存储P个枢轴点的元数据结构中。 每个传递函数段被拟合到具有基于等式​​的顺序的N个系数的相应等式。 编码器为除了第P个枢轴点之外的每个枢轴点分配N + 1个单元，并将数量N存储在第一单元中，并将剩余单元中的N个系数存储。 编码器生成与视频数据集相关联的第二元数据结构，其包括标识要应用于视频数据集的传递函数的数据。 编码器对包括第一和第二元数据结构的视频数据进行编码。

    SCALABLE VIDEO CODING SYSTEM WITH PARAMETER SIGNALING
    5.
    发明申请
    SCALABLE VIDEO CODING SYSTEM WITH PARAMETER SIGNALING 审中-公开
    具有参数信号的可扩展视频编码系统

    公开(公告)号：WO2016172395A1

    公开(公告)日：2016-10-27

    申请号：PCT/US2016/028722

    申请日：2016-04-21

    Applicant: ARRIS ENTERPRISES LLC

    Inventor： MINOO, Koohyar ,  GU, Zhouye ,  BAYLON, David M. ,  LUTHRA, Ajay

    IPC: H04N19/30 ,  H04N19/117 ,  H04N19/132 ,  H04N19/17 ,  H04N19/186 ,  H04N19/467 ,  H04N19/187

    CPC classification number: H04N19/30 ,  H04N19/117 ,  H04N19/132 ,  H04N19/17 ,  H04N19/176 ,  H04N19/186 ,  H04N19/187 ,  H04N19/44 ,  H04N19/467

    Abstract: A method is provided for encoding a digital video to provide for improved color mapping. The digital video has values in a first color space, and the method includes performing a color mapping operation on values in each sub-picture to convert the values in the first color space to values in a second, narrower, color space, wherein the color mapping operation is adapted based on the content of each sub-picture, encoding the values in the second color space into a base layer, performing a reverse color mapping operation on decoded values from the base layer in the second color space in each sub-picture to generate a reconstructed reference frame having values in the first color space, encoding values in the first color space into an enhancement layer based at least in part on the reconstructed reference frame, combining the base layer and the enhancement layer into a bitstream, sending the bitstream to a decoder, and sending one or more parameters to the decoder that describe the adaption of the reverse color mapping operation for at least some sub-pictures.

    Abstract translation: 提供了一种用于对数字视频进行编码以提供改进的颜色映射的方法。 数字视频具有第一颜色空间中的值，并且该方法包括对每个子图像中的值执行颜色映射操作，以将第一颜色空间中的值转换为第二，较窄的颜色空间中的值，其中颜色 基于每个子图像的内容，将第二颜色空间中的值编码为基本层，对每个子图像中的第二颜色空间中的基底层的解码值执行反色映射操作， 以产生具有第一颜色空间中的值的重建参考帧，至少部分地基于重构的参考帧将第一颜色空间中的值编码为增强层，将基本层和增强层组合成比特流，发送 比特流到解码器，并且向解码器发送描述对于至少一些子图像的反色映射操作的适配的一个或多个参数。

    WEIGHTED ANGULAR PREDICTION FOR INTRA CODING
    6.
    发明申请
    WEIGHTED ANGULAR PREDICTION FOR INTRA CODING 审中-公开
    内编码的加权角预测

    公开(公告)号：WO2017205701A1

    公开(公告)日：2017-11-30

    申请号：PCT/US2017/034592

    申请日：2017-05-25

    Applicant: ARRIS ENTERPRISES LLC

    Inventor： PANUSOPONE, Krit ,  MINOO, Koohyar ,  YU, Yue ,  WANG, Limin

    IPC: H04N19/593

    Abstract: A method of decoding JVET video, comprising receiving a bitstream indicating how a coding tree unit was partitioned into coding units according to a partitioning structure that allows nodes to be split according to a partitioning technique. An intra direction mode for a coding unit may be selected, as well as one or more of the plurality of reference lines to generate at least one predictor for the intra direction mode. A predictor may be generated from reference samples within each selected reference line by combining predicted pixel values based on a projected position on a main reference line in combination with predicted pixel values based on a projected position on a side reference line. The predicted pixel values are weighted according to a weight parameter, wherein the weight parameter is determined based on a shift conversion factor.

    Abstract translation: 一种解码JVET视频的方法，包括：接收指示如何根据允许根据分割技术来分割节点的分割结构将编码树单元划分为编码单元的比特流。 可以选择用于编码单元的帧内方向模式以及多个参考线中的一个或多个参考线以生成用于帧内方向模式的至少一个预测器。 通过基于主参考线上的投影位置结合基于侧参考线上的投影位置的预测像素值来组合预测像素值，可以从每个选定参考线内的参考样本生成预测因子。 根据权重参数对预测的像素值进行加权，其中权重参数是基于换档转换因子确定的。

    SINGLE LAYER HIGH DYNAMIC RANGE CODING WITH STANDARD DYNAMIC RANGE BACKWARD COMPATIBILITY
    7.
    发明申请
    SINGLE LAYER HIGH DYNAMIC RANGE CODING WITH STANDARD DYNAMIC RANGE BACKWARD COMPATIBILITY 审中-公开
    单层高动态范围编码与标准动态范围后向兼容性

    公开(公告)号：WO2017053849A1

    公开(公告)日：2017-03-30

    申请号：PCT/US2016/053516

    申请日：2016-09-23

    Applicant: ARRIS ENTERPRISES LLC

    Inventor： MINOO, Koohyar ,  GU, Zhouye ,  BAYLON, David M. ,  LUTHRA, Ajay ,  YU, Yue

    IPC: H04N19/98 ,  H04N19/70 ,  G06T5/00

    CPC classification number: H04N19/124 ,  G06T5/007 ,  G06T2207/20208 ,  H04N19/174 ,  H04N19/177 ,  H04N19/186 ,  H04N19/44 ,  H04N19/70 ,  H04N19/98

    Abstract: A method for transforming high dynamic range (HDR) video data into standard dynamic range (SDR) video data and encoding the SDR video data so that the HDR video data may be recovered at the decoder includes generating a tone map describing a transformation applied to the HDR video data to generate the SDR video data. The generated tone map describes the transformation as the multiplication of each HDR pixel in the HDR video data by a scalar to generate the SDR video data. The tone map is then modeled as a reshaping transfer function and the HDR video data is processed by the reshaping transfer function to generate the SDR video data. The reshaping transfer function is then inverted and described in a self-referential metadata structure. The SDR video data is then encoded including the metadata structure defining the inverse reshaping transfer function.

    Abstract translation: 一种用于将高动态范围（HDR）视频数据转换成标准动态范围（SDR）视频数据并对SDR视频数据进行编码以便可以在解码器处恢复HDR视频数据的方法包括：生成描述应用于 HDR视频数据生成SDR视频数据。 所产生的色调映射描述了将HDR图像数据中的每个HDR像素乘以标量的变换，以生成SDR视频数据。 然后将色调映射建模为重塑传递函数，并且通过重塑传递函数处理HDR视频数据以生成SDR视频数据。 然后，重塑传递函数被反转并以自引用元数据结构描述。 SDR视频数据被编码，包括定义反重整传递函数的元数据结构。

    ADAPTIVE PERCEPTUAL MAPPING AND SIGNALING FOR VIDEO CODING
    8.
    发明申请
    ADAPTIVE PERCEPTUAL MAPPING AND SIGNALING FOR VIDEO CODING 审中-公开
    用于视频编码的自适应识别映射和信号

    公开(公告)号：WO2016172394A1

    公开(公告)日：2016-10-27

    申请号：PCT/US2016/028721

    申请日：2016-04-21

    Applicant: ARRIS ENTERPRISES LLC

    Inventor： MINOO, Koohyar ,  GU, Zhouye ,  BAYLON, David M. ,  LUTHRA, Ajay

    IPC: H04N19/124 ,  H04N19/154 ,  H04N19/126 ,  H04N19/132 ,  H04N19/172 ,  H04N19/176 ,  G06T5/10 ,  G06T5/00

    CPC classification number: H04N19/124 ,  H04N19/126 ,  H04N19/132 ,  H04N19/136 ,  H04N19/154 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/186 ,  H04N19/70

    Abstract: A method is provided for encoding a digital video to improve perceptual quality. The method includes receiving a digital video at a video encoder, providing a perceptual quantizer function defined by Formula (I); wherein L is a luminance value, c 1 , c 2 , c 3 , and m 1 are parameters with fixed values, and m 2 is a parameter with a variable value, adapting the perceptual quantizer function by adjusting the value of the m 2 parameter based on different luminance value ranges found within a coding level of the digital video, encoding the digital video into a bitstream using, in part, the perceptual quantizer function, transmitting the bitstream to a decoder, and transmitting the value of the m 2 parameter to the decoder for each luminance value range in the coding level.

    Abstract translation: 提供了一种用于对数字视频进行编码以提高感知质量的方法。 该方法包括在视频编码器处接收数字视频，提供由公式（I）定义的感知量化器功能; 其中L是亮度值，c1，c2，c3和m1是具有固定值的参数，m2是具有可变值的参数，通过基于不同亮度值范围调整m2参数的值来适应感知量化器功能 在数字视频的编码级中发现，使用部分感知量化器功能将数字视频编码为比特流，将比特流发送到解码器，并且将每个亮度值范围的m2参数的值发送到解码器 在编码层面。

    TEMPLATE MATCHING FOR JVET INTRA PREDICTION
    9.
    发明申请
    TEMPLATE MATCHING FOR JVET INTRA PREDICTION 审中-公开
    模板匹配JETET INTRA预测

    公开(公告)号：WO2017201141A1

    公开(公告)日：2017-11-23

    申请号：PCT/US2017/033060

    申请日：2017-05-17

    Applicant: ARRIS ENTERPRISES LLC

    Inventor： PANUSOPONE, Krit ,  WANG, Limin ,  MINOO, Koohyar

    IPC: H04N19/105 ,  H04N19/176 ,  H04N19/149 ,  H04N19/11

    Abstract: A method of decoding JVET video, comprising defining a coding unit (CU) template within a decoded area of a video frame, the CU template being positioned above and/or to the left of a current decoding position for which data was intra predicted, defining a search window within the decoded area, the search window being adjacent to the CU template, generating a plurality of candidate prediction templates based on pixel values in the search window, each of the plurality of candidate prediction templates being generated using different intra prediction modes, calculating a matching cost between the CU template and each of the plurality of candidate prediction templates, selecting an intra prediction mode that generated the candidate prediction template that had the lowest matching cost relative to the CU template, and generating a prediction CU for the current decoding position based on the intra prediction mode.

    Abstract translation: 一种解码JVET视频的方法，包括在视频帧的解码区域内定义编码单元（CU）模板，所述CU模板位于当前解码位置的上方和/或左侧 其数据被帧内预测，​​在解码区域内定义搜索窗口，搜索窗口与CU模板相邻，基于搜索窗口中的像素值生成多个候选预测模板，多个候选预测模板中的每一个 使用不同的帧内预测模式生成，计算CU模板与多个候选预测模板中的每一个之间的匹配成本，选择生成相对于CU模板具有最低匹配成本的候选预测模板的帧内预测模式，以及 基于帧内预测模式产生当前解码位置的预测CU。

    HIGH DYNAMIC RANGE ADAPTATION OPERATIONS AT A VIDEO DECODER
    10.
    发明申请
    HIGH DYNAMIC RANGE ADAPTATION OPERATIONS AT A VIDEO DECODER 审中-公开
    视频解码器的高动态范围适应操作

    公开(公告)号：WO2017053860A1

    公开(公告)日：2017-03-30

    申请号：PCT/US2016/053531

    申请日：2016-09-23

    Applicant: ARRIS ENTERPRISES LLC

    Inventor： GU, Zhouye ,  MINOO, Koohyar

    IPC: G06T5/00 ,  H04N19/46 ,  H04N19/136

    CPC classification number: H04N19/44 ,  G06T5/009 ,  G06T2207/10016 ,  G06T2207/10024 ,  G06T2207/20004 ,  G06T2207/20208 ,  H04L65/607 ,  H04N19/136 ,  H04N19/46 ,  H04N19/85

    Abstract: A method of decoding a bitstream (108) comprises decoding the bitstream into color values and metadata items indicating information about adaptive post-processing operations performed by a decoder (302), performing high dynamic range (HDR) adaptation operations on the color values based on the metadata items (308), and performing fixed post-processing operations to reconstruct an HDR video from the color values (312), wherein the HDR adaptation operations convert color values into a format expected by the fixed post-processing operations.

    Abstract translation: 一种解码比特流（108）的方法包括将比特流解码成颜色值和指示由解码器（302）执行的关于自适应后处理操作的信息的元数据项，对基于颜色值的颜色值执行高动态范围（HDR）适应操作 所述元数据项（308），以及执行固定的后处理操作以从所述颜色值（312）重构HDR视频，其中所述HDR适配操作将颜色值转换为由所述固定后处理操作预期的格式。

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