公开(公告)号：US09781446B2

公开(公告)日：2017-10-03

申请号：US13514989

申请日：2010-11-25

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

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

IPC分类号： H04N7/32 ,  H04N19/573 ,  H04N19/593 ,  H04N19/105 ,  H04N19/139 ,  H04N19/176 ,  H04N19/147 ,  H04N19/46 ,  H04N19/51 ,  H04N19/61

CPC分类号： H04N19/573 ,  H04N19/105 ,  H04N19/139 ,  H04N19/147 ,  H04N19/176 ,  H04N19/46 ,  H04N19/51 ,  H04N19/593 ,  H04N19/61

摘要： A method for decoding a stream of coded data to reconstruct a current block of a sequence of images is disclosed. The method comprises the steps of: reconstructing for the current block a first item of motion data from a stream of coded data, identifying a first prediction block with the first item of motion data, determining a second item of motion data by template matching, identifying a second prediction block with the second item of motion data, reconstructing the current block from the first and second prediction blocks. The step of determination of the second item of motion data is a function of the first distortion calculated between the first prediction block and the second prediction block.

公开(公告)号：US09363514B2

公开(公告)日：2016-06-07

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 ,  H04N19/593 ,  H04N19/105 ,  H04N19/176 ,  H04N19/51 ,  H04N19/50 ,  H04N19/61 ,  H04N19/192 ,  H04N19/48 ,  H04N19/52

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 neighboring 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。

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。

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。

公开(公告)号：US10142650B2

公开(公告)日：2018-11-27

申请号：US13503026

申请日：2010-10-13

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

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

IPC分类号： H04N7/26 ,  H04N7/36 ,  G06F15/00 ,  H04N19/52 ,  H04N19/176 ,  H04N19/513 ,  H04N19/61 ,  H04N19/132 ,  H04N19/523

摘要： The method includes determining at least one candidate motion vector associated with a neighboring block of said current block. A prediction motion vector is determined from the candidate motion vector, and the current block is coded from the prediction motion vector. The prediction motion vector is determined according by determining, for the candidate motion vector, a corrective motion vector so as to minimize a distortion calculated between the neighoboring block successively coded and reconstructed and a prediction block motion compensated by the at least one candidate motion vector modified by the corrective motion vector. The prediction motion vector is then determined from the candidate motion vector modified by the corrective motion vector.

公开(公告)号：US20130208982A1

公开(公告)日：2013-08-15

申请号：US13817070

申请日：2011-08-08

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

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

IPC分类号： G06T9/00

CPC分类号： G06T9/004 ,  H04N19/159 ,  H04N19/176 ,  H04N19/543

摘要： The invention is made in the field of image block encoding and reconstruction. A method for reconstructing a current block of an image is described, the current block being encoded using predictive encoding of segments resulting from geometry adaptive block partitioning of said current block. After decoding encoded data comprising at least one flag and motion vectors, wherein blocks referenced by the motion vectors are used for prediction of segments of the current block, the at least one flag and an encoding order of the motion vectors in the encoded data is used for determining which of the referenced blocks exhibits a geometry that matches the geometry of the current block and for determining a segment of the determined block, wherein prior to determining the segment, the determined block is geometry adaptive block partitioned into segments from which the segment is determined for predicting one of the segments of the current block.

摘要翻译： 本发明是在图像块编码和重建领域中进行的。 描述用于重建图像的当前块的方法，使用对所述当前块的几何自适应块分割产生的段的预测编码对当前块进行编码。 在对包括至少一个标志和运动矢量的编码数据进行解码之后，其中由运动矢量参考的块用于预测当前块的段，使用编码数据中的运动矢量的至少一个标志和编码顺序 用于确定参考块中的哪一个表现出与当前块的几何相匹配的几何形状，并且用于确定确定的块的段，其中在确定该段之前，所确定的块是被划分成段的几何自适应块 确定用于预测当前块的一个段。

公开(公告)号：US20130195371A1

公开(公告)日：2013-08-01

申请号：US13577994

申请日：2011-02-09

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

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

IPC分类号： G06T9/00

CPC分类号： G06T9/004 ,  H04N19/105 ,  H04N19/176 ,  H04N19/51 ,  H04N19/593 ,  H04N19/97

摘要： A method for coding a current block is disclosed. The method comprises: determining a prediction block from the current block, determining a residue block by extracting from the current block the prediction block, and coding the residue block. The prediction block from the current block is determined according to the following steps for: determining an initial prediction block from motion data and at least one reference image previously coded and reconstructed, applying an atomic decomposition method on a vector of data Ycp, comprising the image data of neighbouring blocks of the current block previously coded and reconstructed and the data of the initial prediction block, and extracting from the decomposed vector the data corresponding to the current block, the extracted data forming the prediction block.

摘要翻译： 公开了一种用于编码当前块的方法。 该方法包括：从当前块确定预测块，通过从当前块中提取预测块并对残差块进行编码来确定残差块。 根据以下步骤确定来自当前块的预测块：用于从运动数据确定初始预测块和先前编码和重构的至少一个参考图像，对数据Ycp的矢量应用原子分解方法，包括图像 预先编码和重构的当前块的相邻块的数据和初始预测块的数据，并且从分解向量中提取与当前块相对应的数据，提取形成预测块的数据。

公开(公告)号：US20110026844A1

公开(公告)日：2011-02-03

申请号：US12804891

申请日：2010-07-30

申请人： Edouard Francois ,  Dominique Thoreau ,  Jerome Vieron ,  Philipe Bordes

发明人： Edouard Francois ,  Dominique Thoreau ,  Jerome Vieron ,  Philipe Bordes

IPC分类号： G06K9/36

CPC分类号： H04N19/85 ,  H04N19/129 ,  H04N19/14 ,  H04N19/176 ,  H04N19/182 ,  H04N19/60

摘要： A method for decoding a stream of coded data representative of a sequence of images divided into blocks is described. It comprises the following steps for a current block: reconstructing a residual block of residual data from the decoding of a first part of the coded stream of data relating to the current block, determining a prediction block, and reconstructing the current block by merging the residual block and the prediction block, According to the invention, the decoding method comprises in addition a step of reorganisation of residual data in the residual block before the reconstruction of the current block according to the content of the prediction block. The invention also relates to a method for coding.

摘要翻译： 描述用于解码代表被划分成块的图像序列的编码数据流的方法。 它包括对当前块的以下步骤：从与当前块相关的编码数据流的第一部分的解码中重建残余数据的残留块，确定预测块，并通过合并残差来重构当前块 块和预测块，根据本发明，解码方法还包括根据预测块的内容重构当前块之前的残差块中的残差数据的重组步骤。 本发明还涉及一种用于编码的方法。

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。

公开(公告)号：US20120320982A1

公开(公告)日：2012-12-20

申请号：US13514989

申请日：2010-11-25

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

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

IPC分类号： H04N7/32

CPC分类号： H04N19/573 ,  H04N19/105 ,  H04N19/139 ,  H04N19/147 ,  H04N19/176 ,  H04N19/46 ,  H04N19/51 ,  H04N19/593 ,  H04N19/61

摘要： A method for decoding a stream of coded data to reconstruct a current block of a sequence of images is disclosed. The method comprises the steps of: reconstructing for the current block a first item of motion data from a stream of coded data, identifying a first prediction block with the first item of motion data, determining a second item of motion data by template matching, identifying a second prediction block with the second item of motion data, reconstructing the current block from the first and second prediction blocks. The step of determination of the second item of motion data is a function of the first distortion calculated between the first prediction block and the second prediction block.

摘要翻译： 公开了一种用于解码编码数据流以重建图像序列的当前块的方法。 该方法包括以下步骤：从编码数据流重建当前块中的第一项运动数据，用第一项运动数据识别第一预测块，通过模板匹配确定第二项运动数据，识别 具有第二运动数据项的第二预测块，从第一和第二预测块重构当前块。 确定第二运动数据项的步骤是在第一预测块和第二预测块之间计算的第一失真的函数。