Sample Adaptive Offset (SAO) Parameter Signaling
    2.
    发明申请
    Sample Adaptive Offset (SAO) Parameter Signaling 审中-公开
    采样自适应偏移(SAO)参数信号

    公开(公告)号:US20130051454A1

    公开(公告)日:2013-02-28

    申请号:US13593973

    申请日:2012-08-24

    IPC分类号: H04N7/26

    摘要: A method for sample adaptive offset (SAO) filtering and SAO parameter signaling in a video encoder is provided that includes determining SAO parameters for largest coding units (LCUs) of a reconstructed picture, wherein the SAO parameters include an indicator of an SAO filter type and a plurality of SAO offsets, applying SAO filtering to the reconstructed picture according to the SAO parameters, and entropy encoding LCU specific SAO information for each LCU of the reconstructed picture in an encoded video bit stream, wherein the entropy encoded LCU specific SAO information for the LCUs is interleaved with entropy encoded data for the LCUs in the encoded video bit stream. Determining SAO parameters may include determining the LCU specific SAO information to be entropy encoded for each LCU according to an SAO prediction protocol.

    摘要翻译: 提供了一种用于视频编码器中的采样自适应偏移(SAO)滤波和SAO参数信令的方法,其包括确定重构图像的最大编码单元(LCU)的SAO参数,其中SAO参数包括SAO滤波器类型的指示符和 多个SAO偏移量,根据SAO参数对重建图像应用SAO滤波,以及对编码视频比特流中的重构图像的每个LCU进行LCU特定SAO信息的熵编码,其中熵编码的LCU特定SAO信息用于 LCU与编码视频比特流中的LCU的熵编码数据进行交织。 确定SAO参数可以包括根据SAO预测协议确定对于每个LCU进行熵编码的LCU特定SAO信息。

    Reduced Complexity Adaptive Loop Filter (ALF) for Video Coding
    3.
    发明申请
    Reduced Complexity Adaptive Loop Filter (ALF) for Video Coding 审中-公开
    降低复杂度自适应环路滤波器(ALF)用于视频编码

    公开(公告)号:US20120177104A1

    公开(公告)日:2012-07-12

    申请号:US13348583

    申请日:2012-01-11

    IPC分类号: H04N7/26

    摘要: Methods and apparatus for adaptive loop filtering in video coding are provided. The adaptive loop filtering may be largest coding unit (LCU) based, may use adaptive loop filter types in which the vertical size of a filter type is less than the horizontal size, may use a predefined set of filter types in which the vertical size of the largest filter type in the set is less than the horizontal size of the largest filter type in the set, may use a single adaptive loop filter type, and/or may use a filter type that is a cross with a center shape of a size dependent on an aspect ratio of the cross.

    摘要翻译: 提供了视频编码中自适应环路滤波的方法和装置。 自适应环路滤波可以是基于最大编码单元(LCU),可以使用其中滤波器类型的垂直尺寸小于水平尺寸的自适应环路滤波器类型,可以使用预定义的一组滤波器类型,其中垂直尺寸 集合中最大的过滤器类型小于集合中最大过滤器类型的水平尺寸,可以使用单个自适应环路滤波器类型,和/或可以使用与尺寸为中心形状的交叉的过滤器类型 取决于十字架的纵横比。

    Method and apparatus for diagonal scan and simplified coding of transform coefficients
    5.
    发明授权
    Method and apparatus for diagonal scan and simplified coding of transform coefficients 有权
    用于对角线扫描的方法和装置以及变换系数的简化编码

    公开(公告)号:US09154801B2

    公开(公告)日:2015-10-06

    申请号:US13250689

    申请日:2011-09-30

    IPC分类号: H04N19/13 H04N19/43 H04N19/61

    摘要: A method and apparatus for encoding video data. At least a portion of a two dimensional array of transform coefficients representing a portion of video data is re-ordered to a one dimensional array of data by diagonally scanning the portion in at least two scan lines. Each scan line directed in a single common diagonal direction. Syntax elements representing at least a portion of the one dimensional array of data are then coded and transmitted.

    摘要翻译: 一种用于编码视频数据的方法和装置。 表示视频数据的一部分的变换系数的二维阵列的至少一部分通过在至少两条扫描线中对角扫描来重新排列成一维数据阵列。 每个扫描线指向一个共同的对角线方向。 然后对表示一维数据数组的至少一部分的语法元素进行编码和发送。

    Simplified Binary Arithmetic Coding Engine
    6.
    发明申请
    Simplified Binary Arithmetic Coding Engine 审中-公开
    简化二进制算术编码引擎

    公开(公告)号:US20120082215A1

    公开(公告)日:2012-04-05

    申请号:US13250749

    申请日:2011-09-30

    IPC分类号: H04N7/26 H03M7/00

    CPC分类号: H04N19/436 H04N19/13

    摘要: A method of entropy coding in a video encoder is provided that includes assigning a first bin to a first single-probability bin encoder based on a probability state of the first bin, wherein the first single-probability bin encoder performs binary arithmetic coding based on a first fixed probability state, assigning a second bin to a second single-probability bin encoder based on a probability state of the second bin, wherein the second single-probability bin encoder performs binary arithmetic coding based on a second fixed probability state different from the first fixed probability state, and coding the first bin in the first single-probability bin encoder and the second bin in the second single-probability bin encoder in parallel, wherein the first single-probability bin encoder uses a first rLPS table for the first fixed probability state and the second single-probability bin encoder uses a second rLPS table for the second fixed probability state.

    摘要翻译: 提供了一种视频编码器中的熵编码方法,包括:基于第一个存储区的概率状态,将第一个存储区分配给第一个单一概率存储器编码器,其中第一个单概率存储器编码器基于 第一固定概率状态,基于所述第二仓的概率状态,将第二仓分配给第二单一概率仓编码器,其中所述第二单概率箱编码器执行基于与所述第一单概率箱编码器不同的第二固定概率状态的二进制算术编码 固定概率状态,并且并行地编码第一单概率bin编码器中的第一单个概率bin编码器和第二bin中的第一bin,其中第一单概率bin编码器使用第一固定概率的第一rLPS表 状态,第二单概率bin编码器使用第二固定概率状态的第二rLPS表。

    Method and apparatus for video processing in context-adaptive binary arithmetic coding
    8.
    发明授权
    Method and apparatus for video processing in context-adaptive binary arithmetic coding 有权
    用于上下文自适应二进制算术编码的视频处理方法和装置

    公开(公告)号:US08068043B2

    公开(公告)日:2011-11-29

    申请号:US12580876

    申请日:2009-10-16

    IPC分类号: H03M7/40

    摘要: A method and apparatus of a digital signal processor for coding of a significant map. The method for coding of a significant map includes carrying out a scan of at least a portion of a block of transform coefficients; calculating runs of zeros of the scanned data; and coding runs of zeros with variable length coding.

    摘要翻译: 一种用于对重要地图进行编码的数字信号处理器的方法和装置。 用于编码有效映射的方法包括对变换系数块的至少一部分进行扫描; 计算扫描数据的零运行; 并编码具有可变长度编码的零的运行。

    Inverse Transformation Using Pruning For Video Coding
    10.
    发明申请
    Inverse Transformation Using Pruning For Video Coding 有权
    使用修剪进行视频编码的逆变换

    公开(公告)号:US20120287989A1

    公开(公告)日:2012-11-15

    申请号:US13470352

    申请日:2012-05-13

    IPC分类号: H04N7/30

    摘要: A method for decoding an encoded video bit stream in a video decoder is provided that includes determining a scan pattern type for a transform block to be decoded, decoding a column position X and a row position Y of a last non-zero coefficient in the transform block from the encoded video bit stream, selecting a column-row inverse transform order when the scan pattern type is a first type, selecting a row-column inverse transform order when the scan pattern type is a second type, and performing one dimensional (1D) inverse discrete cosine transformation (IDCT) computations according to the selected transform order to inversely transform the transform block to generate a residual block.

    摘要翻译: 提供了一种用于对视频解码器中的编码视频比特流进行解码的方法,包括确定用于要解码的变换块的扫描模式类型,解码列位置X和变换中的最后非零系数的行位置Y 从编码视频比特流中选择扫描图案类型是第一类型时的列行逆变换顺序,当扫描图案类型是第二类型时选择行列逆变换顺序,并且执行一维(1D )逆离散余弦变换(IDCT)计算,以逆变换变换块以产生残差块。