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1. 发明授权

US09781446B2 Method for coding and method for decoding a block of an image and corresponding coding and decoding devices 有权
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.

2. 发明授权

US09363514B2 Spatial prediction technique for video coding 有权
标题翻译：视频编码的空间预测技术
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。

3. 发明授权

US09008178B2 Method for decoding a stream of coded data representative of a sequence of images and method for coding a sequence of images 有权
标题翻译：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。

4. 发明授权

US08442335B2 Method for modifying a reference block of a reference image, method for encoding or decoding a block of an image by help of a reference block and device therefore and storage medium or signal carrying a block encoded by help of a modified reference block 有权
标题翻译：用于修改参考图像的参考块的方法，借助于参考块和装置对图像块进行编码或解码的方法，以及携带经修改的参考块帮助编码的块的存储介质或信号
公开(公告)号：US08442335B2
公开(公告)日：2013-05-14
申请号：US12737707
申请日：2009-08-07
申请人： Dominique Thoreau , Aurélie Martin , Edouard Francois , Jérôme Vieron
发明人： Dominique Thoreau , Aurélie Martin , Edouard Francois , Jérôme Vieron
IPC分类号： G06K9/46
CPC分类号： H04N19/136 , H04N19/105 , H04N19/176 , H04N19/61
摘要： A method for modifying a reference block of a reference image, the method includes transforming the reference block into a first set of coefficients, modifying the first set of coefficients by help of one or more weights and inverse transforming the modified first set of coefficients wherein the weights are determined by help of one or more further pixels of the current image and by help of one or more further reference pixels of the reference image.
摘要翻译：一种用于修改参考图像的参考块的方法，所述方法包括将参考块变换为第一组系数，通过一个或多个权重的帮助来修改第一组系数，并逆变换修改的第一组系数，其中，权重通过当前图像的一个或多个其它像素的帮助并通过参考图像的一个或多个另外的参考像素的帮助来确定。

5. 发明申请

US20120128068A1 METHOD FOR DECODING A STREAM OF CODED DATA REPRESENTATIVE OF A SEQUENCE OF IMAGES AND METHOD FOR CODING A SEQUENCE OF IMAGES 有权
标题翻译：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。

6. 发明授权

US08059722B2 Method and device for choosing a mode of coding 有权
标题翻译：用于选择编码方式的方法和装置
公开(公告)号：US08059722B2
公开(公告)日：2011-11-15
申请号：US11174165
申请日：2005-07-01
申请人： Edouard Francois , Dominique Thoreau , Anne Lorette
发明人： Edouard Francois , Dominique Thoreau , Anne Lorette
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , G06K9/46
CPC分类号： H04N19/14 , H04N19/103 , H04N19/147 , H04N19/176 , H04N19/61
摘要： The present invention relates to a method and a device for choosing a mode of coding from among a plurality of modes of coding for a subset of blocks included in a set of blocks. An energy function over the set of blocks for each of the modes of coding is calculated and calculation elements of the energy function are stored for at least the subset of blocks. A first mode of coding, minimizing the energy function over the set of blocks is chosen. The energy function over the subset of blocks for each of the modes of coding is thereafter calculated by using the calculation elements stored for the subset of blocks and by said subset, of a cost of coding for the modes of coding distinct from the first mode of coding. The choice of a mode of coding minimizing the energy function over the subset is then effected.
摘要翻译：本发明涉及一种用于从包括在一组块中的块的子集的多个编码模式中选择编码模式的方法和装置。计算每个编码模式的块集合上的能量函数，并且为至少块的子集存储能量函数的计算元素。选择第一模式的编码，使在该组块上的能量函数最小化。然后通过使用为块的子集和所述子集存储的计算元素对与编码的每个模式的块的子集进行能量函数的编码成本不同于第一模式的编码模式编码。然后进行最小化该子集上的能量函数的编码模式的选择。

7. 发明申请

US20110080953A1 Method for determining a filter for interpolating one or more pixels of a frame And Method And Device For Encoding Or Recoding A Frame 有权
标题翻译：用于确定用于内插帧的一个或多个像素的滤波器的方法以及用于编码或重新编码帧的方法和装置
公开(公告)号：US20110080953A1
公开(公告)日：2011-04-07
申请号：US12737172
申请日：2009-05-11
申请人： Edouard Francois , Dominique Thoreau , Jérôme Vieron , Aurélie Martin
发明人： Edouard Francois , Dominique Thoreau , Jérôme Vieron , Aurélie Martin
IPC分类号： H04N7/32
CPC分类号： H04N19/00896 , G06T7/223 , H04N19/117 , H04N19/139 , H04N19/154 , H04N19/17 , H04N19/33 , H04N19/51 , H04N19/523 , H04N19/61 , H04N19/635 , H04N19/80 , H04N19/82
摘要： The invention is related to a method for determining a filter for interpolating one or more pixels comprised in a frame. The proposed method comprises the step of determining the filter based on other pixels in the remainder of the frame wherein a motion vector associated with said pixels has at least one motion parameter in common with another motion vector associated with said other pixels and the filter is determined such that a quality of an interpolation of said other pixels, said interpolation being determined by help of said determined filter, reaches or exceeds the quality of any other interpolation of said other pixels determinable by help of one of different filter candidates comprised in a filter candidate set. In determining the filter solely on different other pixels of the same frame, said method for determining a filter for interpolation allows for realization of a single pass encoding framework.
摘要翻译：本发明涉及一种用于确定用于内插包括在帧中的一个或多个像素的滤波器的方法。所提出的方法包括基于帧的其余部分中的其他像素确定滤波器的步骤，其中与所述像素相关联的运动矢量具有与与所述其它像素相关联的另一运动矢量共同的至少一个运动参数，并且确定滤波器使得通过所述确定的滤波器的帮助来确定所述其他像素的插值的质量达到或超过可以通过滤波器候选中包括的不同滤波器候选之一的帮助来确定的所述其他像素的任何其它内插的质量组。在仅在同一帧的不同其他像素上确定滤波器的情况下，用于确定用于插值的滤波器的所述方法允许实现单程编码框架。

8. 发明申请

US20100232505A1 Process for Coding Images Using Intra Prediction Mode 审中-公开
标题翻译：使用帧内预测模式编码图像的过程
公开(公告)号：US20100232505A1
公开(公告)日：2010-09-16
申请号：US12223887
申请日：2007-02-15
申请人： Dominique Thoreau , Olivier Le Meur , Anita Orhand , Leonard Porta
发明人： Dominique Thoreau , Olivier Le Meur , Anita Orhand , Leonard Porta
IPC分类号： H04N7/34
CPC分类号： H04N19/105 , H04N19/11 , H04N19/137 , H04N19/176 , H04N19/523 , H04N19/593 , H04N19/61
摘要： The process implements an intra prediction mode which comprises: a step of motion estimation of a neighboring part of the current block, which is already coded, within the reconstructed part of the image, to get a correlated part, a step of defining a predicted block according to the correlated part and to the position of the current block regarding the neighboring part.
摘要翻译：该过程实现帧内预测模式，其包括：在图像的重建部分内已经编码的当前块的相邻部分的运动估计步骤，以获得相关部分，定义预测块根据相关部分和当前块关于相邻部分的位置。

9. 发明申请

US20090304080A1 METHOD FOR CODING AN IMAGE SEQUENCE 有权
标题翻译：编码图像序列的方法
公开(公告)号：US20090304080A1
公开(公告)日：2009-12-10
申请号：US10585488
申请日：2005-01-03
申请人： Edouard Francois , Dominique Thoreau , Anne Lorette , Yannick Olivier
发明人： Edouard Francois , Dominique Thoreau , Anne Lorette , Yannick Olivier
IPC分类号： H04N7/26
CPC分类号： H04N19/137 , H04N19/103 , H04N19/105 , H04N19/107 , H04N19/114 , H04N19/124 , H04N19/14 , H04N19/172 , H04N19/176 , H04N19/51 , H04N19/61
摘要： The method comprises the steps for the: calculation of a rate of potential use of an entity of the picture k for a backward predictive coding of the picture k−s, according to the number of vectors of the backward motion vector field of the picture k−s pointing to the entity of the picture k or in its near surroundings and/or calculation of a rate of potential use of an entity of the picture k for a forward predictive coding of the picture k+p, according to the number of vectors of the forward motion vector field of the picture k+p pointing to the entity of the picture k or in its near surroundings, coding of the picture entity or the picture comprising the entity according to the rate of use of the picture entity. The applications concern the hybrid type compression diagrams.
摘要翻译：该方法包括以下步骤：根据图像ks指向的向后运动矢量场的向量的数量，计算图像k的实体的潜在使用率用于图像ks的反向预测编码图像k的实体或其附近的周边和/或根据向前运动的向量的数量来计算图像k的实体的图像k的正向预测编码的速率的比率图像k + p的矢量场指向图像k的实体或其附近的周围，根据图像实体的使用率，对图像实体或包括实体的图像进行编码。这些应用涉及混合型压缩图。

10. 发明申请

US20070116361A1 Device and method for creating a saliency map of an image 有权
标题翻译：用于创建图像的显着图的设备和方法
公开(公告)号：US20070116361A1
公开(公告)日：2007-05-24
申请号：US10583673
申请日：2004-12-14
申请人： Olivier Le Meur , Dominique Thoreau , Edouard Francois , Patrick Le Callet , Dominique Barba
发明人： Olivier Le Meur , Dominique Thoreau , Edouard Francois , Patrick Le Callet , Dominique Barba
IPC分类号： G06K9/00
CPC分类号： G06K9/4623 , G06K9/4652 , G06K9/4671 , G06T5/003 , G06T7/262 , G06T2207/10024
摘要： The invention concerns a device and a method for creating a saliency map of an image. It comprises the steps of: Projection of said image according to the luminance component and if said image is a color image, according to the luminance component and according to the chrominance components, Perceptual sub-bands decomposition of said components according to the visibility threshold of a human eye, Extraction of the salient elements of the sub-bands related to the luminance component, Contour enhancement of said salient elements in each sub-band related to the luminance component, Calculation of a saliency map from the contour enhancement, for each sub-band related to the luminance component. Creation of the saliency map as a function of the saliency maps obtained for each sub-band.
摘要翻译：本发明涉及用于创建图像的显着图的装置和方法。它包括以下步骤：根据亮度分量投影所述图像，如果所述图像是彩色图像，则根据亮度分量并根据色度分量，根据可见度阈值对所述分量的感知子带分解人眼，与亮度分量相关的子带的突出元素的提取，与亮度分量相关的每个子带中的所述突出元素的轮廓增强，从轮廓增强计算显着图，对于每个子与亮度分量相关的带。创建显着性图作为每个子带获得的显着性图的函数。

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