METHOD AND APPARATUS FOR FAST GEOMETRIC MODE DESICION IN A VIDEO ENCODER
    2.
    发明申请
    METHOD AND APPARATUS FOR FAST GEOMETRIC MODE DESICION IN A VIDEO ENCODER 有权
    用于视频编码器中快速几何模态的方法和装置

    公开(公告)号:US20100118959A1

    公开(公告)日:2010-05-13

    申请号:US12450695

    申请日:2008-04-03

    IPC分类号: H04N7/12

    摘要: There are provided methods and apparatus for fast geometric mode decision in a video encoder. An apparatus includes an encoder (100) for performing a non-exhaustive geometric mode decision using geometric model-based partitioning modes. The encoder (100) skips a testing of the geometric model-based partitioning modes based on at least one of a correlation and a dependence between the geometric model-based partitioning modes and non-geometric partitioning modes.

    摘要翻译: 提供了在视频编码器中快速几何模式决定的方法和装置。 一种装置包括用于使用基于几何模型的分割模式来执行非穷尽几何模式决定的编码器(100)。 基于基于几何模型的分割模式和非几何分割模式之间的相关性和依赖性中的至少一个,编码器(100)跳过对基于几何模型的分割模式的测试。

    Selection of phase offsets for interpolation filters for motion compensation
    4.
    发明授权
    Selection of phase offsets for interpolation filters for motion compensation 有权
    选择用于运动补偿的插值滤波器的相位偏移

    公开(公告)号:US09264725B2

    公开(公告)日:2016-02-16

    申请号:US13532217

    申请日:2012-06-25

    摘要: In one embodiment, a method for encoding or decoding video content is provided. The method determines a plurality of sets of interpolation filters for use in interpolating sub-pel pixel values for a temporal prediction process of video content. Different sets of interpolation filters include different phase offset characteristics. A unit of video content is received. The method then selects one of the set of interpolation filters to interpolate a set of sub-pel pixel values for use in the temporal prediction process for the unit of video content based on characteristics associated with the encoding or decoding of the video content. The one of the set of interpolation filters is selected based on the phase offset characteristic of the one of the set of interpolation filters and the characteristics associated with the encoding or decoding.

    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。 该方法确定用于内插用于视频内容的时间预测处理的子像素像素值的多组插值滤波器。 不同的插值滤波器组包括不同的相位偏移特性。 收到视频内容的单位。 该方法然后基于与视频内容的编码或解码相关联的特征,选择一组插值滤波器来内插用于视频内容单元的时间预测处理的一组子像素像素值。 基于内插滤波器组中的一个的相位偏移特性和与编码或解码相关联的特性来选择该组内插滤波器中的一个。

    High efficiency low complexity interpolation filters
    5.
    发明授权
    High efficiency low complexity interpolation filters 有权
    高效率低复杂度插值滤波器

    公开(公告)号:US09049454B2

    公开(公告)日:2015-06-02

    申请号:US13354201

    申请日:2012-01-19

    申请人: Jian Lou Limin Wang

    发明人: Jian Lou Limin Wang

    CPC分类号: H04N19/523 H04N19/117

    摘要: Embodiments for high efficiency low complexity interpolation filters for High Efficiency Video Coding (HEVC) are disclosed herein, specifically novel techniques for a video compression system. In order to estimate and compensate sub-pel displacements, the image signal on these sub-pel positions is generated by an interpolation process. In HEVC, sub-pel pixel interpolation is performed using filters. As described herein, the filter may have, for example, eight taps to determine the sub-pel pixel values for sub-pel pixel positions, such as half-pel and quarter-pel positions. The taps weight the integer pixels with coefficient values to generate the sub-pel signals. Different coefficients may produce different compression performance in signal distortion and noise.

    摘要翻译: 本文公开了用于高效率视频编码(HEVC)的高效率低复杂度插值滤波器的实施例,特别是用于视频压缩系统的新颖技术。 为了估计和补偿子像素位移,通过内插处理产生这些子像素位置上的图像信号。 在HEVC中,使用滤波器执行子像素像素内插。 如本文所述,滤波器可以具有例如八个抽头以确定子像素像素位置的子像素像素值,诸如半像素和四分之一像素位置。 抽头用系数值对整数像素进行加权,以生成子像素信号。 不同的系数可能在信号失真和噪声中产生不同的压缩性能。

    Temporal block merge mode
    6.
    发明授权
    Temporal block merge mode 有权
    时间块合并模式

    公开(公告)号:US08929450B2

    公开(公告)日:2015-01-06

    申请号:US13351682

    申请日:2012-01-17

    IPC分类号: H04N7/12 H04N19/51 H04N19/96

    CPC分类号: H04N19/52 H04N19/96

    摘要: In one embodiment, a method includes determining motion parameters for a temporally-located block to a current block of video content. The temporally-located block is located in a different picture from the current block. The temporally-located block is identified in a merge mode candidate list. The merge mode candidate list includes candidate blocks in which motion parameters are candidates to be used for the current block. The method then signals information to a decoder to indicate which motion parameters from a candidate block on the merge mode candidate list to use in decoding the current block. If a temporally-located block is identified, the method uses motion parameters for the temporally-located block in decoding the current block of video content.

    摘要翻译: 在一个实施例中,一种方法包括确定当前视频内容块的时间位置块的运动参数。 时间上位于的块位于与当前块不同的图片中。 在时间上定位的块在合并模式候选列表中被识别。 合并模式候选列表包括其中运动参数是要用于当前块的候选的候选块。 然后,该方法将信息发送到解码器,以指示来自合并模式候选列表上的候选块的哪些运动参数用于解码当前块。 如果识别出时间上定位的块,则该方法在解码当前视频内容块时使用时间位置块的运动参数。

    SELECTION OF PHASE OFFSETS FOR INTERPOLATION FILTERS FOR MOTION COMPENSATION
    7.
    发明申请
    SELECTION OF PHASE OFFSETS FOR INTERPOLATION FILTERS FOR MOTION COMPENSATION 有权
    选择用于运动补偿的插值过滤器的相位偏移

    公开(公告)号:US20130051463A1

    公开(公告)日:2013-02-28

    申请号:US13532217

    申请日:2012-06-25

    IPC分类号: H04N7/32

    摘要: In one embodiment, a method for encoding or decoding video content is provided. The method determines a plurality of sets of interpolation filters for use in interpolating sub-pel pixel values for a temporal prediction process of video content. Different sets of interpolation filters include different phase offset characteristics. A unit of video content is received. The method then selects one of the set of interpolation filters to interpolate a set of sub-pel pixel values for use in the temporal prediction process for the unit of video content based on characteristics associated with the encoding or decoding of the video content. The one of the set of interpolation filters is selected based on the phase offset characteristic of the one of the set of interpolation filters and the characteristics associated with the encoding or decoding.

    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。 该方法确定用于内插用于视频内容的时间预测处理的子像素像素值的多组插值滤波器。 不同的插值滤波器组包括不同的相位偏移特性。 收到视频内容的单位。 该方法然后基于与视频内容的编码或解码相关联的特征,选择一组插值滤波器来内插用于视频内容单元的时间预测处理的一组子像素像素值。 基于内插滤波器组中的一个的相位偏移特性和与编码或解码相关联的特性来选择该组内插滤波器中的一个。

    Spatial block merge mode
    9.
    发明授权
    Spatial block merge mode 有权
    空间块合并模式

    公开(公告)号:US09066104B2

    公开(公告)日:2015-06-23

    申请号:US13351782

    申请日:2012-01-17

    摘要: In one embodiment, a spatial merge mode for a block of video content may be used in merging motion parameters. Spatial merge parameters are considered and do not require utilization of bits or flags or indexing to signal at the encoder or decoder. If the spatial merge mode is determined, the method merges the block of video content with a spatially-located block, where merging shares motion parameters between the spatially-located block and the block of video content.

    摘要翻译: 在一个实施例中,用于视频内容块的空间合并模式可用于合并运动参数。 考虑空间合并参数,并且不需要使用位或标志或索引以在编码器或解码器处发信号。 如果确定空间合并模式,则该方法将视频内容块与空间位置块合并,其中合并在空间位置块和视频内容块之间共享运动参数。

    Method and system for processing video data
    10.
    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。