Motion vector prediction with motion vectors from multiple views in multi-view video coding
    71.
    发明授权
    Motion vector prediction with motion vectors from multiple views in multi-view video coding 有权
    运动矢量预测与多视图视频编码中的运动矢量

    公开(公告)号:US09485517B2

    公开(公告)日:2016-11-01

    申请号:US13451161

    申请日:2012-04-19

    摘要: Aspects of this disclosure relate to, in an example, a method that includes identifying a first block of video data in a first temporal location from a first view, wherein the first block is associated with a first disparity motion vector. The method also includes determining a motion vector predictor for a second motion vector associated with a second block of video data, wherein the motion vector predictor is based on the first disparity motion vector. When the second motion vector comprises a disparity motion vector, the method includes determining the motion vector predictor comprises scaling the first disparity motion vector to generate a scaled motion vector predictor, wherein scaling the first disparity motion vector comprises applying a scaling factor comprising a view distance of the second disparity motion vector divided by a view distance of the first motion vector to the first disparity motion vector.

    摘要翻译: 本公开的方面在一个示例中涉及一种包括从第一视图识别第一时间位置中的第一视频数据块的方法,其中第一块与第一视差运动矢量相关联。 该方法还包括确定与第二视频数据块相关联的第二运动矢量的运动矢量预测器,其中运动矢量预测器基于第一视差运动矢量。 当第二运动矢量包括视差运动矢量时,该方法包括确定运动矢量预测器包括缩放第一视差运动矢量以产生缩放的运动矢量预测器,其中缩放第一视差运动矢量包括应用包括视距 的第二视差运动矢量除以第一运动矢量与第一视差运动矢量的视距。

    Performing motion vector prediction for video coding
    74.
    发明授权
    Performing motion vector prediction for video coding 有权
    执行视频编码的运动矢量预测

    公开(公告)号:US09319716B2

    公开(公告)日:2016-04-19

    申请号:US13351980

    申请日:2012-01-17

    摘要: In general, techniques are described for performing motion vector prediction for video coding. An apparatus comprising a motion compensation unit may implement the techniques. The motion compensation unit determines spatial candidate motion vectors (MVPs) associated with a current portion of a video frame and prunes the spatial candidate motion vectors to remove duplicates without removing a temporal candidate motion vector. The motion compensation unit selects one of the temporal candidate motion vector or one of the spatial candidate motion vectors remaining after pruning as a selected candidate motion vector based on a motion vector predictor (MVP) index signaled in a bitstream and performs motion compensation based on the selected candidate motion vector.

    摘要翻译: 通常,描述了用于执行视频编码的运动矢量预测的技术。 包括运动补偿单元的装置可以实现这些技术。 运动补偿单元确定与视频帧的当前部分相关联的空间候选运动矢量(MVP),并修剪空间候选运动矢量以去除重复,而不去除时间候选运动矢量。 运动补偿单元基于在比特流中发信号的运动矢量预测器(MVP)索引,选择剪枝之后剩余的时间候选运动矢量或空间候选运动矢量中的一个作为选择的候选运动矢量,并基于 选择的候选运动矢量。

    Joint coding of syntax elements for video coding
    75.
    发明授权
    Joint coding of syntax elements for video coding 有权
    用于视频编码的语法元素的联合编码

    公开(公告)号:US09172963B2

    公开(公告)日:2015-10-27

    申请号:US13283335

    申请日:2011-10-27

    摘要: In one example, a video decoder is configured to determine whether a component of a transform unit of a coding unit of video data includes at least one non-zero coefficient based on a codeword for the transform unit, determine whether the transform unit is split into sub-transform units based on the codeword, and decode the transform unit based on the determinations. In another example, a video encoder is configured to determine whether a component of a transform unit of a coding unit of video data includes at least one non-zero coefficient, determine whether the transform unit is split into sub-transform units, select a codeword from a variable length code table, wherein the variable length code table provides an indication that the codeword corresponds to the determinations, and provide the codeword for the transform unit.

    摘要翻译: 在一个示例中,视频解码器被配置为基于用于变换单元的码字来确定视频数据的编码单元的变换单元的分量是否包括至少一个非零系数,确定变换单元是否被分成 基于码字的子变换单元,并且基于确定来解码变换单元。 在另一示例中,视频编码器被配置为确定视频数据的编码单元的变换单元的分量是否包括至少一个非零系数,确定变换单元是否被分割成子变换单元,选择码字 从可变长度码表中,其中可变长度码表提供码字对应于确定的指示,并提供用于变换单元的码字。

    Fixed point implementation for geometric motion partitioning
    76.
    发明授权
    Fixed point implementation for geometric motion partitioning 有权
    几何运动分割的固定点实现

    公开(公告)号:US08879632B2

    公开(公告)日:2014-11-04

    申请号:US13012126

    申请日:2011-01-24

    摘要: In one example, an apparatus includes a video encoder configured to partition a block of video data into a first partition and a second partition using a geometric motion partition line, calculate a slope value and a y-intercept value of the geometric motion partition line, wherein the slope value and the y-intercept value comprise integer values, calculate a mask indicative of pixels of the block in the first partition and pixels of the block in the second partition, encode the first partition and the second partition based on the mask, and output the encoded first partition, the encoded second partition, the slope value, and the y-intercept value. This may allow for a fixed point implementation. A video decoder may receive the slope and y-intercept values to calculate the mask and decode the block based on the mask.

    摘要翻译: 在一个示例中,一种装置包括视频编码器,其被配置为使用几何运动分割线将视频数据块划分为第一分区和第二分区,计算几何运动分割线的斜率值和y截距值, 其中所述斜率值和所述y截距值包括整数值,计算指示所述第一分区中的块的像素的掩模和所述第二分区中的块的像素,基于所述掩码对所述第一分区和所述第二分区进行编码, 并输出编码的第一分区,编码的第二分区,斜率值和y截距值。 这可能允许固定点实现。 视频解码器可以接收斜率和y截距值以计算掩码并基于掩码解码块。

    REDUCED RESOLUTION PIXEL INTERPOLATION
    77.
    发明申请
    REDUCED RESOLUTION PIXEL INTERPOLATION 有权
    减少分辨率像素插值

    公开(公告)号:US20130010865A1

    公开(公告)日:2013-01-10

    申请号:US13536484

    申请日:2012-06-28

    IPC分类号: H04N7/32

    摘要: An offset can be applied to intermediate values obtained while performing an interpolation filtering operation such that applying the offset reduces the bitdepth of the intermediate value. The intermediate value can be stored with the reduced bitdepth, and when retrieved, the offset can be added back such that future calculation can be performed using the intermediate value with the original bitdepth.

    摘要翻译: 可以对执行内插滤波操作时获得的中间值应用偏移,使得应用偏移减少中间值的位差。 中间值可以用减少的位差存储,并且当检索时,可以将偏移量加回,以便可以使用具有原始bitdepth的中间值来执行将来的计算。

    MOTION VECTOR PREDICTION IN VIDEO CODING
    78.
    发明申请
    MOTION VECTOR PREDICTION IN VIDEO CODING 有权
    运动矢量预测在视频编码

    公开(公告)号:US20120269271A1

    公开(公告)日:2012-10-25

    申请号:US13451204

    申请日:2012-04-19

    IPC分类号: H04N7/32

    摘要: Aspects of this disclosure relate to a method of coding video data. In an example, the method includes identifying a first block of video data in a first temporal location from a first view, wherein the first block of video data is associated with a first temporal motion vector. The method also includes determining, when a second motion vector associated with a second block of video data comprises a temporal motion vector and the second block is from a second view, a motion vector predictor for the second motion vector based on the first temporal motion vector. The method also includes coding prediction data for the second block using the motion vector predictor.

    摘要翻译: 本公开的方面涉及对视频数据进行编码的方法。 在一个示例中,该方法包括从第一视图识别第一时间位置中的视频数据的第一块,其中第一视频数据块与第一时间运动矢量相关联。 该方法还包括当与第二视频数据块相关联的第二运动矢量包括时间运动矢量并且第二块来自第二视图时,确定基于第一时间运动矢量的第二运动矢量的运动矢量预测器 。 该方法还包括使用运动矢量预测器对第二块的预测数据进行编码。

    PERFORMING MOTION VECTOR PREDICTION FOR VIDEO CODING
    79.
    发明申请
    PERFORMING MOTION VECTOR PREDICTION FOR VIDEO CODING 有权
    执行视频编码运动矢量预测

    公开(公告)号:US20120195368A1

    公开(公告)日:2012-08-02

    申请号:US13351980

    申请日:2012-01-17

    IPC分类号: H04N7/32 H04N7/26

    摘要: In general, techniques are described for performing motion vector prediction for video coding. An apparatus comprising a motion compensation unit may implement the techniques. The motion compensation unit determines spatial candidate motion vectors (MVPs) associated with a current portion of a video frame and prunes the spatial candidate motion vectors to remove duplicates without removing a temporal candidate motion vector. The motion compensation unit selects one of the temporal candidate motion vector or one of the spatial candidate motion vectors remaining after pruning as a selected candidate motion vector based on a motion vector predictor (MVP) index signaled in a bitstream and performs motion compensation based on the selected candidate motion vector.

    摘要翻译: 通常,描述了用于执行视频编码的运动矢量预测的技术。 包括运动补偿单元的装置可以实现这些技术。 运动补偿单元确定与视频帧的当前部分相关联的空间候选运动矢量(MVP),并修剪空间候选运动矢量以去除重复,而不去除时间候选运动矢量。 运动补偿单元基于在比特流中发信号的运动矢量预测器(MVP)索引,选择剪枝之后剩余的时间候选运动矢量或空间候选运动矢量中的一个作为选择的候选运动矢量,并基于 选择的候选运动矢量。

    ADAPTIVELY PERFORMING SMOOTHING OPERATIONS
    80.
    发明申请
    ADAPTIVELY PERFORMING SMOOTHING OPERATIONS 有权
    轻松执行平滑操作

    公开(公告)号:US20120177114A1

    公开(公告)日:2012-07-12

    申请号:US13311812

    申请日:2011-12-06

    IPC分类号: H04N7/32

    摘要: During a video coding process, a prediction block is generated for a CU. The CU has two or more prediction units. A computing device determines, based on sizes of one or more of the prediction units, whether to perform a smoothing operation on samples in a transition zone of the prediction block. The transition zone is located at a boundary between samples of the prediction block associated with different prediction units. If the computing device makes the determination to perform the smoothing operation, the smoothing operation is performed to smooth samples of the prediction block in the transition zone.

    摘要翻译: 在视频编码处理期间,为CU生成预测块。 CU具有两个或更多个预测单元。 计算装置基于一个或多个预测单元的大小来确定是否对预测块的过渡区域中的样本执行平滑处理。 过渡区域位于与不同预测单元相关联的预测块的采样之间的边界。 如果计算装置做出进行平滑处理的判定,则进行平滑化处理,以平滑过渡区域中的预测块的采样。