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    Method for decoding a stream of coded data representative of a sequence of images and method for coding a sequence of images
    1.
    发明授权
    Method for decoding a stream of coded data representative of a sequence of images and method for coding a sequence of images 有权
    用于解码表示图像序列的编码数据流的方法和用于编码图像序列的方法

    公开(公告)号：US09008178B2

    公开(公告)日：2015-04-14

    申请号：US13388047

    申请日：2010-07-29

    申请人： Dominique Thoreau ,  Edouard Francois ,  Jerome Vieron ,  Fabien Racape

    发明人： Dominique Thoreau ,  Edouard Francois ,  Jerome Vieron ,  Fabien Racape

    IPC分类号： H04N7/12 ,  G06K9/46 ,  H04N19/105 ,  H04N19/137 ,  H04N19/176 ,  H04N19/503 ,  H04N19/46

    CPC分类号： H04N19/105 ,  H04N19/137 ,  H04N19/176 ,  H04N19/46 ,  H04N19/503

    摘要： A method for decoding a stream of coded data representative of a sequence of images is disclosed. The decoding method comprises: determining a prediction block, calculating the average of said prediction block, reconstructing, from said stream, a DC coefficient and AC coefficients relating to said current block, calculating an average of said current block from said average of said prediction block and said DC coefficient, calculating a weighted prediction parameter as being the ratio of the average of said current block and the average of said prediction block, transforming a block of coefficients comprising a null value as DC coefficient and said reconstructed AC coefficients into a residual block, reconstructing the current block by merging said residual block and said prediction block weighted by said weighted prediction parameter. A method for coding is further disclosed.

    摘要翻译： 公开了一种用于对表示图像序列的编码数据流进行解码的方法。 解码方法包括：确定预测块，计算所述预测块的平均值，从所述流重建与所述当前块相关的DC系数和AC系数，从所述预测块的所述平均值计算所述当前块的平均值 和所述DC系数，计算加权预测参数作为所述当前块的平均值与所述预测块的平均值的比率，将包括零值的系数块作为DC系数和所述重建的AC系数变换为残差块 通过合并所述残差块和由所述加权预测参数加权的所述预测块来重构当前块。 进一步公开了编码方法。

    METHOD FOR DECODING A STREAM OF CODED DATA REPRESENTATIVE OF A SEQUENCE OF IMAGES AND METHOD FOR CODING A SEQUENCE OF IMAGES
    2.
    发明申请
    METHOD FOR DECODING A STREAM OF CODED DATA REPRESENTATIVE OF A SEQUENCE OF IMAGES AND METHOD FOR CODING A SEQUENCE OF IMAGES 有权
    用于解码图像序列的编码数据表示流的方法和用于编码图像序列的方法

    公开(公告)号：US20120128068A1

    公开(公告)日：2012-05-24

    申请号：US13388047

    申请日：2010-07-29

    申请人： Dominique Thoreau ,  Edouard Francois ,  Jerome Vieron ,  Fabien Racape

    发明人： Dominique Thoreau ,  Edouard Francois ,  Jerome Vieron ,  Fabien Racape

    IPC分类号： H04N7/50 ,  H04N7/32

    CPC分类号： H04N19/105 ,  H04N19/137 ,  H04N19/176 ,  H04N19/46 ,  H04N19/503

    摘要： A method for decoding a stream of coded data representative of a sequence of images is disclosed. The decoding method comprisesdetermining a prediction block,calculating the average of said prediction block,reconstructing, from said stream, a DC coefficient and AC coefficients relating to said current block,calculating an average of said current block from said average of said prediction block and said DC coefficient,calculating a weighted prediction parameter as being the ratio of the average of said current block and the average of said prediction block,transforming a block of coefficients comprising a null value as DC coefficient and said reconstructed AC coefficients into a residual block,reconstructing the current block by merging said residual block and said prediction block weighted by said weighted prediction parameter.A method for coding is further disclosed.

    摘要翻译： 公开了一种用于对表示图像序列的编码数据流进行解码的方法。 解码方法包括确定预测块，计算所述预测块的平均值，从所述流重建与所述当前块相关的DC系数和AC系数，从所述预测块的所述平均值计算所述当前块的平均值，以及 将所述DC系数计算为所述当前块的平均值与所述预测块的平均值的比值的加权预测参数，将包含零值的系数块作为DC系数和所述重建的AC系数变换为残差块， 通过合并所述残差块和由所述加权预测参数加权的所述预测块来重构当前块。 进一步公开了编码方法。

    PROCESS FOR CODING VIDEO DATA OF A SEQUENCE OF IMAGES
    3.
    发明申请
    PROCESS FOR CODING VIDEO DATA OF A SEQUENCE OF IMAGES 有权
    编码图像序列的视频数据的过程

    公开(公告)号：US20120250764A1

    公开(公告)日：2012-10-04

    申请号：US13379184

    申请日：2010-06-16

    申请人： Aurelie Martin ,  Dominique Thoreau ,  Edouard Francois ,  Jerome Vieron ,  Fabien Racape ,  Christine Guillemot ,  Jean-Jacques Fuchs

    发明人： Aurelie Martin ,  Dominique Thoreau ,  Edouard Francois ,  Jerome Vieron ,  Fabien Racape ,  Christine Guillemot ,  Jean-Jacques Fuchs

    IPC分类号： H04N7/26

    CPC分类号： H04N7/50 ,  H04N19/48 ,  H04N19/593 ,  H04N19/61 ,  H04N19/97

    摘要： The process comprising splitting of an image into blocks, intra coding of a current block using spatial prediction based on a matching pursuit algorithm selecting, from a dictionary of atoms, the atom the most correlated with a causal neighborhood of the current block, is characterized in that it performs the following steps: determination of the two dimensional shift between the causal neighborhood and the selected atom, generation of at least, a new phased atom taking into account the values of the two dimensional spatial shift, use of this new atom for intra prediction, according to the matching pursuit algorithm, if better correlated than the selected one. Application to video data compression.

    摘要翻译： 该过程包括将图像分割为块，使用基于匹配追踪算法的空间预测的当前块的帧内编码，从原子字典中选择与当前块的因果关系最相关的原子，其特征在于 它执行以下步骤：确定因果邻域和所选原子之间的二维移位，至少产生一个考虑到二维空间位移的值的新的相位原子，使用该新原子进行内部 预测，根据匹配追求算法，如果与所选择的相关性更好相关。 应用于视频数据压缩。

    METHODS AND DEVICE FOR RECONSTRUCTING AND CODING AN IMAGE BLOCK
    8.
    发明申请
    METHODS AND DEVICE FOR RECONSTRUCTING AND CODING AN IMAGE BLOCK 审中-公开
    用于重构和编码图像块的方法和装置

    公开(公告)号：US20140056348A1

    公开(公告)日：2014-02-27

    申请号：US14004732

    申请日：2012-03-08

    申请人： Edouard Francois ,  Dominique Thoreau ,  Fabien Racape ,  Aurelie Martin

    发明人： Edouard Francois ,  Dominique Thoreau ,  Fabien Racape ,  Aurelie Martin

    IPC分类号： H04N7/32

    CPC分类号： H04N19/105 ,  H04N19/137 ,  H04N19/147 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/19 ,  H04N19/50 ,  H04N19/577 ,  H04N19/61 ,  H04N19/70

    摘要： A method for reconstruction of a current block predicted from at least one reference block is described. The method comprises the steps for: decoding at least one weighted prediction parameter, called an explicit parameter, from coded data, calculating at least one weighted prediction parameter, called an implicit parameter, from a first causal neighbouring area of the current block and a first corresponding neighbouring area of the reference block, calculating a first distortion resulting from the prediction of a second causal neighbouring area of the current block with the explicit parameter and a second distortion resulting from the prediction of said second causal neighbouring area with the implicit parameter, comparing the first and second distortions, selecting a parameter between the explicit parameter and the implicit parameter according to the result of the comparison, and reconstructing the current block using the selected parameter.

    摘要翻译： 描述了从至少一个参考块预测的当前块的重构方法。 该方法包括以下步骤：从编码数据中解码至少一个称为显式参数的加权预测参数，从当前块的第一因果相邻区域中计算至少一个称为隐式参数的加权预测参数，以及第一 计算由所述显式参数对当前块的第二因果相邻区域的预测产生的第一失真，以及由所述隐式参数对所述第二因果相邻区域的预测产生的第二失真，比较 第一和第二失真，根据比较结果选择显式参数和隐式参数之间的参数，并使用所选参数重构当前块。

    METHODS FOR CODING AND DECODING
    10.
    发明申请
    METHODS FOR CODING AND DECODING 有权
    编码和解码的方法

    公开(公告)号：US20130195181A1

    公开(公告)日：2013-08-01

    申请号：US13575105

    申请日：2011-01-19

    申请人： Dominique Thoreau ,  Aurelie Martin ,  Edouard Francois ,  Jerome Vieron ,  Philippe Bordes

    发明人： Dominique Thoreau ,  Aurelie Martin ,  Edouard Francois ,  Jerome Vieron ,  Philippe Bordes

    IPC分类号： H04N7/26

    CPC分类号： H04N19/593 ,  H04N19/105 ,  H04N19/176 ,  H04N19/192 ,  H04N19/48 ,  H04N19/50 ,  H04N19/52 ,  H04N19/61

    摘要： A method for coding a block of pixels is disclosed. The method comprises the following steps: determining, for each pixel of the current block, a prediction pixel by thresholding, with a current threshold value, of coefficients resulting from a transformation applied on a window covering at least the pixel of the current block and by inverse transformation applied to the thresholded coefficients, extracting from the current block a prediction block formed of prediction pixels to generate a residue block, and coding said residue block, According to the invention, the current threshold value is determined or coded from neighbouring reconstructed pixels of the current block.

    摘要翻译： 公开了一种用于对像素块进行编码的方法。 该方法包括以下步骤：通过利用当前阈值阈值化当前块的每个像素来确定由施加在至少覆盖当前块的像素的窗口上的变换产生的系数，并且由 逆变换应用于阈值系数，从当前块中提取由预测像素形成的预测块以产生残差块，并对所述残差块进行编码。根据本发明，从当前阈值的相邻重建像素 当前块。