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    Bandwidth reduction for video coding prediction
    36.
    发明授权
    Bandwidth reduction for video coding prediction 有权
    视频编码预测的带宽减少

    公开(公告)号：US09491460B2

    公开(公告)日：2016-11-08

    申请号：US14227839

    申请日：2014-03-27

    Applicant: QUALCOMM Incorporated

    Inventor： Vadim Seregin ,  Xianglin Wang ,  Joel Sole Rojals

    IPC: H04N19/51 ,  H04N19/176 ,  H04N19/119 ,  H04N19/513 ,  H04N19/109 ,  H04N19/136 ,  H04N19/186 ,  H04N19/426 ,  H04N19/577 ,  H04N19/503

    CPC classification number: H04N19/513 ,  H04N19/109 ,  H04N19/119 ,  H04N19/136 ,  H04N19/176 ,  H04N19/186 ,  H04N19/426 ,  H04N19/503 ,  H04N19/577

    Abstract: In one example, an apparatus for coding video data comprises a video coder configured to obtain a motion vector for predicting a video block with a non-4:2:0 chroma format, determine a video block size for the video block, modify the motion vector to generate a modified motion vector for obtaining samples of at least one reference picture with which to predict the video block if the video block size meets a size criterion, and generate a prediction block for the video block using the samples of the at least one reference picture and the modified motion vector.

    Abstract translation: 在一个示例中，用于对视频数据进行编码的装置包括视频编码器，被配置为获得用于以非4：2：0色度格式预测视频块的运动矢量，确定视频块的视频块大小，修改运动 向量，以产生修改的运动矢量，用于获得至少一个参考图像的样本，以便如果所述视频块大小满足大小标准则用于预测所述视频块，并且使用所述至少一个参考图像的采样生成所述视频块的预测块 参考图片和修改的运动矢量。

    Mode decision simplification for intra prediction
    37.
    发明授权
    Mode decision simplification for intra prediction 有权
    模式决策简化用于帧内预测

    公开(公告)号：US09426473B2

    公开(公告)日：2016-08-23

    申请号：US13756659

    申请日：2013-02-01

    Applicant: Qualcomm Incorporated

    Inventor： Yang Yu ,  Wei-Jung Chien ,  Xianglin Wang ,  Marta Karczewicz

    IPC: H04N19/00 ,  H04N19/11 ,  H04N19/50 ,  H04N19/176 ,  H04N19/147 ,  H04N19/19

    CPC classification number: H04N19/11 ,  H04N19/147 ,  H04N19/176 ,  H04N19/19 ,  H04N19/50

    Abstract: In general, techniques are described for reducing the complexity of mode selection when selecting from multiple, different prediction modes. A video coding device comprising a processor may perform the techniques. The processor may compute approximate costs for a pre-defined set of intra-prediction modes identified in a current set. The current set of intra-prediction modes may include fewer modes than a total number of intra-prediction modes. The processor may compare approximate costs computed for one or more most probable intra-prediction modes to a threshold and replace one or more of the intra-prediction modes of the current set with one or more most probable intra-prediction modes. The processor may perform rate distortion analysis with respect to each intra-prediction mode identified in the current set and perform intra-prediction coding with respect to the current block using a mode of the current set.

    Abstract translation: 一般来说，描述了当从多种不同的预测模式进行选择时降低模式选择的复杂度的技术。 包括处理器的视频编码装置可以执行这些技术。 处理器可以计算在当前集合中识别的预定义的帧内预测模式集合的近似成本。 当前的帧内预测模式集合可以包括比总内帧数据预测模式少的模式。 处理器可以将针对一个或多个最可能的帧内预测模式计算的近似成本与阈值进行比较，并用一个或多个最可能的帧内预测模式来替换当前集合的一个或多个帧内预测模式。 处理器可以针对当前集合中识别的每个帧内预测模式执行速率失真分析，并使用当前集合的模式对当前块执行帧内预测编码。

    Non-square transforms in intra-prediction video coding
    38.
    发明授权
    Non-square transforms in intra-prediction video coding 有权
    帧内预测视频编码中的非平方变换

    公开(公告)号：US09247254B2

    公开(公告)日：2016-01-26

    申请号：US13659546

    申请日：2012-10-24

    Applicant: Qualcomm Incorporated

    Inventor： Liwei Guo ,  Xianglin Wang ,  Marta Karczewicz

    IPC: H04N11/02 ,  H04N11/04 ,  H04N19/11 ,  H04N19/70 ,  H04N19/46 ,  H04N19/122

    CPC classification number: H04N19/11 ,  H04N19/122 ,  H04N19/46 ,  H04N19/70

    Abstract: This disclosure describes techniques for determining transform partitions in video encoding processes that allow for non-square transform partitions in intra-coded blocks. According to one example of the disclosure, a video coding method comprise partitioning a coding unit into multiple prediction units, and determining a transform partition for each of the prediction units, wherein at least one transform partition is a non-square partition.

    Abstract translation: 本公开描述了用于确定允许帧内编码块中的非平方变换分区的视频编码处理中的变换分区的技术。 根据本公开的一个示例，视频编码方法包括将编码单元划分为多个预测单元，以及为每个预测单元确定变换分区，其中至少一个变换分区是非方形分区。

    Intra prediction mode decision with reduced storage
    39.
    发明授权
    Intra prediction mode decision with reduced storage 有权
    内部预测模式决定减少存储

    公开(公告)号：US09148667B2

    公开(公告)日：2015-09-29

    申请号：US13760750

    申请日：2013-02-06

    Applicant: QUALCOMM Incorporated

    Inventor： Wei-Jung Chien ,  Xianglin Wang ,  Marta Karczewicz

    IPC: H04N7/12 ,  H04N19/105 ,  H04N19/176 ,  H04N19/147 ,  H04N19/11 ,  H04N19/19 ,  H04N19/433 ,  H04N19/436

    CPC classification number: H04N19/105 ,  H04N19/11 ,  H04N19/147 ,  H04N19/176 ,  H04N19/19 ,  H04N19/433 ,  H04N19/436

    Abstract: In general, techniques are described for reducing the space required to store rate distortion values when selecting from multiple, different prediction modes. A video coding device comprising a processor may perform the techniques. The processor may determine first and second sets of intra-prediction modes for a current block of video data. The first and second sets of intra-prediction modes may include less intra-prediction modes, collectively, than a total number of intra-prediction modes. The processor may compute an approximate cost for each intra-prediction mode included in the first and second sets of intra-prediction modes. The processor may store the approximate cost for each intra-prediction mode identified in the first and second sets of intra-prediction modes to a memory. The processor may perform intra-prediction to encode the current block using a mode identified in at least one of the first or second set.

    Abstract translation: 通常，描述了当从多个不同的预测模式进行选择时，减少存储速率失真值所需的空间的技术。 包括处理器的视频编码装置可以执行这些技术。 处理器可以确定当前视频数据块的第一组和第二组帧内预测模式。 第一组和第二组帧内预测模式可以包括比帧内预测模式的总数更少的帧内预测模式。 处理器可以计算包括在第一和第二组帧内预测模式中的每个帧内预测模式的近似成本。 处理器可以将在第一和第二组帧内预测模式中识别的每个帧内预测模式的近似成本存储到存储器。 处理器可以执行帧内预测，​​以使用在第一或第二组中的至少一个中识别的模式对当前块进行编码。

    SCALABLE IMPLEMENTATION FOR PARALLEL MOTION ESTIMATION REGIONS
    40.
    发明申请
    SCALABLE IMPLEMENTATION FOR PARALLEL MOTION ESTIMATION REGIONS 有权
    并行运动估计区域的可扩展实现

    公开(公告)号：US20150163506A1

    公开(公告)日：2015-06-11

    申请号：US14099800

    申请日：2013-12-06

    Applicant: QUALCOMM Incorporated

    Inventor： Jaehong Chon ,  In Suk Chong ,  Hariharan Ganesh Lalgudi ,  Xianglin Wang ,  Marta Karczewichz

    IPC: H04N19/513 ,  H04N19/187

    CPC classification number: H04N19/513 ,  H04N19/187 ,  H04N19/436 ,  H04N19/52

    Abstract: A video coding device configured according to some aspects of this disclosure includes a memory configured to store a plurality of motion vector candidates. Each motion vector candidate can corresponding to at least one of a plurality of prediction units (PUs) partitioned in a parallel motion estimation region (MER). The video coding device also includes a processor in communication with the memory. The processor is configured to select a subset of the plurality of motion vector candidates to include in a merge candidate list. The selection can be based on a priority level of each motion vector candidate. The processor can be further configured to generate the merge candidate list to include the selected motion vector candidates.

    Abstract translation: 根据本公开的一些方面配置的视频编码装置包括被配置为存储多个运动矢量候选的存储器。 每个运动矢量候选可以对应于在并行运动估计区域（MER）中分割的多个预测单元（PU）中的至少一个。 视频编码装置还包括与存储器通信的处理器。 处理器被配置为选择多个运动矢量候选的子集以包括在合并候选列表中。 该选择可以基于每个运动矢量候选的优先级。 处理器可以被进一步配置成生成合并候选列表以包括所选择的运动向量候选。

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