公开(公告)号：US20130136372A1

公开(公告)日：2013-05-30

申请号：US13638625

申请日：2011-03-28

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

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

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 an iterative step of decomposition into atoms of a first dictionary of a vector of data comprising at least reconstructed image data associated with pixels situated in a causal neighbouring area of a current block.At each iteration, the step of decomposition into atoms comprises the following steps for: selecting a first atom in the first dictionary of atoms, applying a phase correlation between a patch associated with the first atom and a current residue vector, when the first atom is a textured atom, extracting from the patch at least the part most correlated with the residue vector, the extracted part forming a second atom, selecting from among the first atom and the second atom, the atom most correlated with the current residue vector, and updating the residue vector according to the selected atom.

摘要翻译： 公开了一种用于编码当前块的方法。 该方法包括将包含至少与位于当前块的因果相邻区域中的像素相关联的重建图像数据的数据向量分解成第一字典的原子的迭代步骤。 在每次迭代中，分解成原子的步骤包括以下步骤：选择第一原子字典中的第一个原子，在与第一个原子相关的贴片和当前的残基向量之间施加相位相关性，当第一个原子是 纹理原子，从贴片提取至少与残基载体最相关的部分，提取部分形成第二原子，从第一原子和第二原子中选出与当前残基矢量最相关的原子，以及更新 根据所选原子的残基载体。

公开(公告)号：US20130101040A1

公开(公告)日：2013-04-25

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： H04N7/36

CPC分类号： H04N19/52 ,  H04N19/132 ,  H04N19/176 ,  H04N19/513 ,  H04N19/523 ,  H04N19/61

摘要： A method for coding a current block of a sequence of images is disclosed. The method comprises: determining at least one candidate motion vector associated with a neighbouring block of said current block, determining a prediction motion vector from the candidate motion vector, and coding the current block from the prediction motion vector. Advantageously, the prediction motion vector is determined according to the following steps: determining, for the candidate motion vector, a corrective motion vector so as to minimise a distortion calculated between the neighbouring 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, and determining the prediction motion vector from the candidate motion vector modified by the corrective motion vector.

摘要翻译： 公开了一种用于编码图像序列的当前块的方法。 该方法包括：确定与所述当前块的相邻块相关联的至少一个候选运动矢量，从候选运动矢量确定预测运动矢量，以及从预测运动矢量对当前块进行编码。 有利地，根据以下步骤确定预测运动矢量：为候选运动矢量确定校正运动矢量，以便最小化在连续编码和重构的相邻块之间计算的失真和由at 由校正运动矢量修改的至少一个候选运动矢量，以及根据由校正运动矢量修改的候选运动矢量确定预测运动矢量。

公开(公告)号：US20120218131A1

公开(公告)日：2012-08-30

申请号：US13381911

申请日：2010-06-22

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： H03M7/00

CPC分类号： H03M7/4006 ,  H04N19/13 ,  H04N19/61 ,  H04N19/93

摘要： A method for arithmetic coding of symbols in a stream is described. The method comprises the following steps: coding a current symbol with a current probability model, and updating the current probability model according to the coding of the current symbol. selecting the current probability model in a set of at least two probability models according to a coding cost criterion, and coding an identifier of the selected probability model.

摘要翻译： 描述流中符号的算术编码的方法。 该方法包括以下步骤：使用当前概率模型对当前符号进行编码，并根据当前符号的编码更新当前概率模型。 根据编码成本准则选择一组至少两个概率模型中的当前概率模型，以及对所选概率模型的标识符进行编码。

公开(公告)号：US20080260043A1

公开(公告)日：2008-10-23

申请号：US11974734

申请日：2007-10-16

申请人： Vincent Bottreau ,  Dominique Thoreau ,  Yannick Olivier ,  Edouard Francois ,  Jerome Vieron ,  Christophe Chevance

发明人： Vincent Bottreau ,  Dominique Thoreau ,  Yannick Olivier ,  Edouard Francois ,  Jerome Vieron ,  Christophe Chevance

IPC分类号： H04N7/26

CPC分类号： H04N19/33 ,  H04N19/105 ,  H04N19/11 ,  H04N19/137 ,  H04N19/176 ,  H04N19/187 ,  H04N19/593 ,  H04N19/61

摘要： The invention relates to a method for coding an image data macroblock of a sequence of images presented in the form of a base layer and at least one enhancement layer. The image data macroblock to which corresponds an image data block in the base layer, called a corresponding block, belongs to the enhancement layer. The method comprises the following steps: generate, for the said image data macroblock, a prediction macroblock of image data from one block or several blocks of image data blocks of the said base layer previously coded and reconstructed, generate a macroblock of residues from the prediction macroblock and from the image data macroblock MBEL of the enhancement layer, and code the said macroblock of residues. According to the invention, the image data blocks of the said base layer are different from the corresponding block.

摘要翻译： 本发明涉及一种用于编码以基层和至少一个增强层形式呈现的图像序列的图像数据宏块的方法。 被称为对应块的基础层中对应于图像数据块的图像数据宏块属于增强层。 该方法包括以下步骤：为所述图像数据宏块生成来自预先编码和重建的所述基本层的一个块或多个图像数据块的图像数据的预测宏块，从预测生成残差宏块 宏块和来自增强层的图像数据宏块MB EL EL，并对所述宏块进行编码。 根据本发明，所述基础层的图像数据块与相应的块不同。

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：US20110170599A1

公开(公告)日：2011-07-14

申请号：US12736613

申请日：2009-04-23

申请人： Edouard Francois ,  Olivier Le Meur ,  Jerome Vieron

发明人： Edouard Francois ,  Olivier Le Meur ,  Jerome Vieron

IPC分类号： H04N7/26

CPC分类号： H04N19/00024 ,  H04N19/105 ,  H04N19/136 ,  H04N19/17 ,  H04N19/23 ,  H04N19/577 ,  H04N19/61

摘要： A method for coding a picture portion of a picture of a video sequence is disclosed, at least one picture of the video sequence being a key picture. The method comprises the following steps: a) calculate a saliency map of the key picture, b) estimate for the picture portion to be coded, at least one motion vector pointing towards a portion of the key picture, c) motion compensate at least one portion of the saliency map using an estimated motion vector to obtain, for said picture portion, at least one portion of the predicted saliency map, and d) code the picture portion according to the saliency level of the portion of the predicted saliency map. The invention also relates to a method for decoding a binary stream, a coder able to code pictures of a video sequence and a decoder of a binary stream.

摘要翻译： 公开了一种用于对视频序列的图像的图像部分进行编码的方法，所述视频序列的至少一个图像是关键图像。 该方法包括以下步骤：a）计算关键图像的显着图，b）估计要编码的图像部分，至少一个指向关键图像的一部分的运动矢量，c）运动补偿至少一个 显影图的部分使用估计的运动矢量，以便为所述图像部分获得预测显着图的至少一部分，以及d）根据预测显着图的部分的显着性级别对图像部分进行编码。 本发明还涉及一种用于对二进制流进行解码的方法，能够对二进制流的视频序列的图像和解码器进行编码的编码器。

公开(公告)号：US09247268B2

公开(公告)日：2016-01-26

申请号：US13138538

申请日：2010-03-03

申请人： Edouard Francois ,  Dominique Thoreau ,  Jerome Vieron

发明人： Edouard Francois ,  Dominique Thoreau ,  Jerome Vieron

IPC分类号： H04N7/32 ,  H04N19/573 ,  H04N19/105 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/513 ,  H04N19/61 ,  H04N19/14 ,  H04N19/523

CPC分类号： H04N19/573 ,  H04N19/105 ,  H04N19/139 ,  H04N19/14 ,  H04N19/159 ,  H04N19/176 ,  H04N19/513 ,  H04N19/523 ,  H04N19/61

摘要： A method for predicting a current block belonging to a current image with a view to the coding or the reconstruction of the current block. The method includes determining for the current block a reference block from at least one motion data previously associated with the current block. The fulfillment of a predefined condition is is verified. The predefined condition being representative of a temporal variation between the image data of the reference block and the image data of a prediction block of the reference block previously determined from at least one motion data associated with the reference block. The motion data is modified according to the result of the verification, and a final prediction block for the current block is generated from the motion data of the current block.

摘要翻译： 一种用于预测属于当前图像的当前块以便于对当前块的编码或重构的方法。 该方法包括从当前块中先前关联的至少一个运动数据确定当前块的参考块。 验证预定义条件的实现。 所述预定条件代表参考块的图像数据与先前根据与参考块相关联的至少一个运动数据确定的参考块的预测块的图像数据之间的时间变化。 运动数据根据验证结果进行修改，根据当前块的运动数据生成当前块的最终预测块。