Efficient Transform Unit Representation
    11.
    发明申请
    Efficient Transform Unit Representation 有权
    高效变换单元表示

    公开(公告)号:US20120177116A1

    公开(公告)日:2012-07-12

    申请号:US13328948

    申请日:2011-12-16

    IPC分类号: H04N7/50

    摘要: In one embodiment, a method includes receiving a prediction unit (PU) for a coding unit (CU) of the video content. The method analyzes the prediction unit to determine a size of prediction unit. A size of a transform unit is determined based on the size of the prediction unit based on a set of rules. The set of rules specify the size of the transform unit is linked to the size of prediction unit and not a size of the coding unit. The method then outputs the size of the transform unit for use in a transform operation.

    摘要翻译: 在一个实施例中,一种方法包括:接收用于视频内容的编码单元(CU)的预测单元(PU)。 该方法分析预测单元以确定预测单元的大小。 基于一组规则,基于预测单元的大小来确定变换单元的大小。 该组规则指定变换单元的大小与预测单元的大小相关联,而不是编码单元的大小。 然后,该方法输出用于变换操作的变换单元的大小。

    Method and Apparatus for Selecting a Coding Mode
    12.
    发明申请
    Method and Apparatus for Selecting a Coding Mode 有权
    用于选择编码模式的方法和装置

    公开(公告)号:US20090110066A1

    公开(公告)日:2009-04-30

    申请号:US11928440

    申请日:2007-10-30

    IPC分类号: H04N7/32

    摘要: A method and apparatus for selecting a coding mode for a block of a current picture are disclosed. For example, the method selects a coding mode in accordance with a cost function, for coding the block, wherein the cost function comprises a coding distortion parameter and a number of coding bits parameter, wherein said coding distortion parameter is measured in accordance with at least one of: between a prediction residual and a reconstructed prediction residual, or between a transformed prediction residual and a dequantized transformed prediction residual, wherein the number of coding bits parameter is computed in accordance with at least one of: from a true number of compressed bits resulting from coding said block, directly from a plurality of bins, or directly from a plurality of quantized transform coefficients.

    摘要翻译: 公开了一种用于选择当前画面的块的编码模式的方法和装置。 例如,该方法根据成本函数选择用于编码块的编码模式,其中成本函数包括编码失真参数和编码比特数量,其中所述编码失真参数至少根据 在预测残差和重构预测残差之间,或在变换预测残差与去量化变换预测残差之间的其中之一,其中根据以下的至少一个来计算编码位参数的数目:从真实数量的压缩位 这是由直接从多个箱中或直接从多个量化变换系数对所述块进行编码而产生的。

    Interpolation filter selection using prediction unit (PU) size
    13.
    发明授权
    Interpolation filter selection using prediction unit (PU) size 有权
    内插滤波器选择使用预测单位(PU)大小

    公开(公告)号:US09313519B2

    公开(公告)日:2016-04-12

    申请号:US13415907

    申请日:2012-03-09

    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。

    Motion vector prediction design simplification
    14.
    发明授权
    Motion vector prediction design simplification 有权
    运动矢量预测设计简化

    公开(公告)号:US09094689B2

    公开(公告)日:2015-07-28

    申请号:US13536416

    申请日:2012-06-28

    摘要: In one embodiment, a method receives a unit of video content. The unit of video content is coded in a bi-prediction mode. A motion vector predictor candidate set is determined for a first motion vector for the unit. The method then determines a first motion vector predictor from the motion vector prediction candidate set for the first motion vector and calculates a second motion vector predictor for a second motion vector for the unit of video content. The second motion vector predictor is calculated based on the first motion vector or the first motion vector predictor.

    摘要翻译: 在一个实施例中,一种方法接收视频内容的单元。 以双预测模式对视频内容的单位进行编码。 针对该单元的第一运动矢量确定运动矢量预测器候选组。 然后,该方法从针对第一运动矢量的运动矢量预测候选集确定第一运动矢量预测器,并计算用于视频内容单位的第二运动矢量的第二运动矢量预测器。 基于第一运动矢量或第一运动矢量预测器来计算第二运动矢量预测器。

    METHODS AND SYSTEM FOR USING A SCAN CODING PATTERN DURING INTER CODING
    15.
    发明申请
    METHODS AND SYSTEM FOR USING A SCAN CODING PATTERN DURING INTER CODING 审中-公开
    在相互编码期间使用扫描编码模式的方法和系统

    公开(公告)号:US20130003857A1

    公开(公告)日:2013-01-03

    申请号:US13538722

    申请日:2012-06-29

    IPC分类号: H04N7/30

    摘要: A method for processing a block of transform coefficients during inter coding includes receiving, during inter coding, 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. 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 a first diagonal scan coding pattern to generate a bit sequence corresponding to the N×M block. The processing 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 diagonal scan coding pattern.

    摘要翻译: 一种用于在帧间编码期间处理变换系数块的方法包括在帧间编码期间接收变换系数的N×M块,其中N是块的行宽,M是块的列高。 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; 以及沿着第一对角扫描编码模式以编码顺序一次一个处理多个子块,以产生与N×M块对应的位序列。 对于包含至少一个非零变换系数的子块,该处理包括沿着第二对角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。

    METHOD AND SYSTEM FOR PROCESSING VIDEO DATA
    16.
    发明申请
    METHOD AND SYSTEM FOR PROCESSING VIDEO DATA 有权
    用于处理视频数据的方法和系统

    公开(公告)号:US20120183052A1

    公开(公告)日:2012-07-19

    申请号:US13345784

    申请日:2012-01-09

    IPC分类号: H04N7/26

    摘要: In various embodiments, a significance map of a matrix of video data coefficients is encoded or decoded using context-based adaptive binary arithmetic coding (CABAC). The significance map scanned line-by-line along a scanning pattern. Each line may be a vertical, horizontal, or diagonal section of the scanning pattern. Context models for each element processed in a particular line are chosen based on values of neighboring elements that are not in the line. Avoiding reliance on neighbors that are in the same line facilitates parallel processing.

    摘要翻译: 在各种实施例中,使用基于上下文的自适应二进制算术编码(CABAC)对视频数据系数矩阵的显着图进行编码或解码。 沿着扫描模式逐行扫描的重要性图。 每行可以是扫描图案的垂直,水平或对角线部分。 基于不在行中的相邻元素的值来选择在特定行中处理的每个元素的上下文模型。 避免依赖同一行中的邻居有助于并行处理。

    CODING AND DECODING UTILIZING CONTEXT MODEL SELECTION WITH ADAPTIVE SCAN PATTERN
    17.
    发明申请
    CODING AND DECODING UTILIZING CONTEXT MODEL SELECTION WITH ADAPTIVE SCAN PATTERN 审中-公开
    编码和解码使用自适应扫描模式的上下文模型选择

    公开(公告)号:US20120082235A1

    公开(公告)日:2012-04-05

    申请号:US13253933

    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. The preparing may include partitioning the source pictures into coding units and/or generating a transform unit having a transform array. The preparing may also include processing the generated transform unit. The processing may include generating a significance map, having a significance map array with y-x locations corresponding to the y-x locations of the transform array. The processing may also include determining, utilizing a 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 plurality of significance map elements 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。 编码可以包括基于源图像准备视频压缩数据。 准备可以包括将源图像划分为编码单元和/或生成具有变换数组的变换单元。 准备还可以包括处理生成的变换单元。 处理可以包括生成具有对应于变换数组的y-x位置的y-x位置的重要性映射数组的重要性映射。 该处理还可以包括基于与多个重要性地图元素中的至少一个编码的相邻重要性地图元素相关联的值来确定利用扫描模式的用于对多个重要性地图元素的有效图元素进行编码的上下文模型 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 system for processing video data
    19.
    发明授权
    Method and system for processing video data 有权
    处理视频数据的方法和系统

    公开(公告)号:US08891617B2

    公开(公告)日:2014-11-18

    申请号:US13345784

    申请日:2012-01-09

    摘要: In various embodiments, a significance map of a matrix of video data coefficients is encoded or decoded using context-based adaptive binary arithmetic coding (CABAC). The significance map scanned line-by-line along a scanning pattern. Each line may be a vertical, horizontal, or diagonal section of the scanning pattern. Context models for each element processed in a particular line are chosen based on values of neighboring elements that are not in the line. Avoiding reliance on neighbors that are in the same line facilitates parallel processing.

    摘要翻译: 在各种实施例中,使用基于上下文的自适应二进制算术编码(CABAC)对视频数据系数的矩阵的有效图进行编码或解码。 沿着扫描模式逐行扫描的重要性图。 每行可以是扫描图案的垂直,水平或对角线部分。 基于不在行中的相邻元素的值来选择在特定行中处理的每个元素的上下文模型。 避免依赖同一行中的邻居有助于并行处理。