METHODS AND SYSTEM FOR USING A SCAN CODING PATTERN DURING INTRA CODING
    21.
    发明申请
    METHODS AND SYSTEM FOR USING A SCAN CODING PATTERN DURING INTRA CODING 审中-公开
    在内部编码中使用扫描编码模式的方法和系统

    公开(公告)号:US20130003837A1

    公开(公告)日:2013-01-03

    申请号:US13538685

    申请日:2012-06-29

    IPC分类号: H04N7/50 H04N7/30

    摘要: A method for processing a block of transform coefficients during intra coding includes receiving an N×M block of transform coefficients, wherein N is a row width of the block and M is a column height of the block. A first scan coding pattern is determined from a set of scan coding patterns comprising a diagonal scan coding pattern, a horizontal scan coding pattern, and a vertical scan coding pattern. The method further includes partitioning the N×M block into a plurality of sub-blocks each comprising a plurality of the transform coefficients; and processing the plurality of sub-blocks, one at a time, in a coding order along the first scan coding pattern to generate a bit sequence. The processing further comprises, for the sub-blocks containing at least one non-zero transform coefficient, coding at least the non-zero transform coefficients in a transform coefficient sequence along a second scan coding pattern.

    摘要翻译: 一种用于在帧内编码期间处理变换系数块的方法,包括接收变换系数的N×M块,其中N是块的行宽,M是块的列高。 从包括对角线扫描编码模式,水平扫描编码模式和垂直扫描编码模式的一组扫描编码模式确定第一扫描编码模式。 该方法还包括将N×M块划分为多个子块,每个子块包括多个变换系数; 以及沿着第一扫描编码模式以编码顺序一次处理多个子块,以生成比特序列。 该处理还包括对于包含至少一个非零变换系数的子块,沿着第二扫描编码模式至少对变换系数序列中的非零变换系数进行编码。

    INTERPOLATION FILTER SELECTION USING PREDICTION UNIT (PU) SIZE
    22.
    发明申请
    INTERPOLATION FILTER SELECTION USING PREDICTION UNIT (PU) SIZE 有权
    使用预测单元(PU)尺寸的插值滤波器选择

    公开(公告)号:US20120230413A1

    公开(公告)日:2012-09-13

    申请号:US13415907

    申请日:2012-03-09

    IPC分类号: H04N7/36

    摘要: In one embodiment, a method for encoding or decoding video content is provided. The method includes determining a set of interpolation filters for use in interpolating sub-pel pixel values and a mapping between interpolation filters in the set of interpolation filters and different sizes of prediction units (PUs) of video content. A PU of video content is received and a size of the received PU is determined The method determines an interpolation filter in the set of interpolation filters based on a mapping between the interpolation filter and the size of the received PU to interpolate a sub-pel pixel value for use in a temporal prediction process for the PU.

    摘要翻译: 在一个实施例中,提供了一种用于编码或解码视频内容的方法。 该方法包括确定用于内插子像素像素值的插值滤波器集合以及内插滤波器组中的插值滤波器和视频内容的预测单元(PU)的不同大小之间的映射。 接收视频内容的PU,并且确定所接收的PU的大小。该方法基于插值滤波器与所接收的PU的大小之间的映射来确定内插滤波器集合中的内插滤波器,以内插子像素像素 用于PU的时间预测过程的值。

    Method and apparatus for providing a fast motion estimation process
    24.
    发明授权
    Method and apparatus for providing a fast motion estimation process 有权
    用于提供快速运动估计过程的方法和装置

    公开(公告)号:US08165209B2

    公开(公告)日:2012-04-24

    申请号:US11859813

    申请日:2007-09-24

    CPC分类号: H04N19/51 H04N19/61

    摘要: A process performs a search on a base reference frame in a video signal to determine a first motion vector for each of the possible partitions of a current macroblock. The first motion vector for a partition provides the most optimal match for the partition in the base reference frame. An optimal partition for the current macroblock, which gives a minimum motion estimation cost among all the possible partitions in the base reference frame, is determined. The process performs the search on the optimal partition over a non-base reference frame in the video signal to determine a second motion vector that provides the most optimal match for the corresponding partition in the non-base reference frame. A simplified search is performed on each partition other than the optimal partition over the non-base reference frame to determine the second motion vector for the corresponding partition.

    摘要翻译: 处理对视频信号中的基本参考帧执行搜索,以确定当前宏块的每个可能分区的第一运动矢量。 分区的第一运动矢量为基准参考帧中的分区提供最佳匹配。 确定当前宏块的最佳分区,其在基准参考帧中的所有可能分区中给出最小的运动估计成本。 该过程通过视频信号中的非基本参考帧执行对最佳分区的搜索,以确定为非基准参考帧中的对应分区提供最佳匹配的第二运动向量。 对非基本参考帧上的最佳分区之外的每个分区执行简化搜索,以确定相应分区的第二运动矢量。

    CODING AND DECODING UTILIZING ADAPTIVE CONTEXT MODEL SELECTION WITH ZIGZAG SCAN
    25.
    发明申请
    CODING AND DECODING UTILIZING ADAPTIVE CONTEXT MODEL SELECTION WITH ZIGZAG SCAN 有权
    使用ZIGZAG扫描实现自适应上下文模型选择的编码和解码

    公开(公告)号:US20120082234A1

    公开(公告)日:2012-04-05

    申请号:US13253385

    申请日:2011-10-05

    IPC分类号: H04N7/30

    摘要: There is a coding. The coding may include preparing video compression data based on source pictures utilizing a processor. The preparing may include processing a generated transform unit, including generating a significance map having a significance map array with y-x locations corresponding to the transform array. The generating may include scanning, utilizing a zigzag scanning pattern, a plurality of significance map elements in the significance map array. The generating may also include determining, utilizing the zigzag scanning pattern, a context model for coding a significance map element of the plurality of significance map elements based on a value associated with at least one coded neighbor significance map element of the significance map element in the significance map array. There is also a decoding including processing video compression data which is generated in the coding.

    摘要翻译: 有一个编码。 编码可以包括利用处理器来准备基于源图像的视频压缩数据。 所述准备可以包括处理所生成的变换单元,包括生成具有与所述变换数组对应的y-x位置的重要性映射数组的重要性映射。 生成可以包括使用锯齿形扫描图案扫描显着图数组中的多个有效图元素。 该生成还可以包括:基于与至少一个编码的相邻重要性映射要素相关联的值来确定利用Z字形扫描模式来编码多个有效图元素的有效图元素的上下文模型 意义地图数组。 还包括处理在编码中生成的视频压缩数据的解码。

    METHOD AND APPARATUS FOR SCALABLE MOTION ESTIMATION
    27.
    发明申请
    METHOD AND APPARATUS FOR SCALABLE MOTION ESTIMATION 有权
    可移动运动估计的方法和装置

    公开(公告)号:US20100080295A1

    公开(公告)日:2010-04-01

    申请号:US12238538

    申请日:2008-09-26

    IPC分类号: H04N11/02 H04B1/66

    摘要: Embodiments of the invention generally provide a method and apparatus for scalable motion estimation. One embodiment of a method for performing motion estimation includes setting a target complexity for a macroblock of a source frame and performing motion estimation for one or more partitions of the macroblock until the target complexity is met.

    摘要翻译: 本发明的实施例通常提供用于可伸缩运动估计的方法和装置。 用于执行运动估计的方法的一个实施例包括设置源帧的宏块的目标复杂度,并对宏块的一个或多个分区执行运动估计,直到满足目标复杂度。