公开(公告)号：US09159141B2

公开(公告)日：2015-10-13

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： G06K9/36 ,  G06K9/46 ,  G06T9/00 ,  H04N19/543 ,  H04N19/176 ,  H04N19/159

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：US08837587B2

公开(公告)日：2014-09-16

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： H04N7/32 ,  H04N19/61

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择的原子之间的二维移动， - 考虑到二维空间位移的值，至少产生一个新的相位原子， - 使用这个新的 原子用于帧内预测，​​根据匹配追踪算法，如果与所选择的相关性更好。 应用于视频数据压缩。

公开(公告)号：US20140064630A1

公开(公告)日：2014-03-06

申请号：US13989088

申请日：2011-11-10

申请人： Fabien Racape ,  Jerome Vieron ,  Simon Lefort ,  Olivier Deforges ,  Marie Babel

发明人： Fabien Racape ,  Jerome Vieron ,  Simon Lefort ,  Olivier Deforges ,  Marie Babel

IPC分类号： G06T9/00 ,  G06T11/00

CPC分类号： G06T9/007 ,  G06T7/42 ,  G06T11/001

摘要： The invention proposes a method for reconstructing a self-similar textured region of an image. Said method comprises determining pixels of a part of the self-similar textured region by copying sample pixels from a sample part of the self-similar textured region, the sample pixels being selected using a neighbourhood matching, wherein a size of neighbourhoods used for matching is selected based on an analysis of descriptors computed from coefficients of OCT transform of differently sized blocks of the sample part. The analysis of descriptors computed from coefficients of DCT transform of differently sized blocks of the sample part allows for determining the neighbourhood size close to a feature size of the texture.

摘要翻译： 本发明提出了一种用于重建图像的自相似纹理区域的方法。 所述方法包括通过从所述自相似纹理区域的样本部分复制样本像素来确定所述自相似纹理区域的一部分的像素，所述样本像素使用邻域匹配来选择，其中用于匹配的邻域的大小为 基于从样本部分的不同大小的块的OCT变换的系数计算的描述符的分析来选择。 从样本部分的不同大小的块的DCT变换的系数计算的描述符的分析允许确定接近于纹理的特征尺寸的邻域大小。

公开(公告)号：US20130243336A1

公开(公告)日：2013-09-19

申请号：US13615314

申请日：2012-09-13

申请人： Dominique Thoreau ,  Edouard Francois ,  Jerome Vieron

发明人： Dominique Thoreau ,  Edouard Francois ,  Jerome Vieron

IPC分类号： G06T9/00

CPC分类号： G06T9/00 ,  H04N19/52 ,  H04N19/523 ,  H04N19/615

摘要： A method for coding a block of pixels is described. The coding method comprises: determining a prediction block for the pixel block from a motion vector; calculating a residue between the pixel block and the prediction block; and code the residue. The determination of the prediction block comprises the following steps: determining an intermediate prediction block of size strictly greater than the size of the pixel block; transforming the intermediate prediction block into a first block transformed with a first transform; and transforming the first transformed block into a second block transformed with a second transform of inverse the first transform whose basis functions are shifted by at least a part of each component of the motion vector, the prediction block being extracted from the second transformed block.

摘要翻译： 描述用于对像素块进行编码的方法。 编码方法包括：从运动矢量确定像素块的预测块; 计算像素块和预测块之间的残差; 并对残留物进行编码。 预测块的确定包括以下步骤：确定严格大于像素块大小的大小的中间预测块; 将所述中间预测块变换为用第一变换变换的第一块; 以及将所述第一变换块变换为第二变换，其中所述第二变换与所述第一变换相反，所述第一变换的基函数被所述运动矢量的每个分量的至少一部分移位，所述预测块从所述第二变换块中提取。

公开(公告)号：US08520960B2

公开(公告)日：2013-08-27

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 ,  G06K9/46

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 reorganization 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：US20130208807A1

公开(公告)日：2013-08-15

申请号：US13704599

申请日：2011-06-07

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

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

IPC分类号： H04N7/26

CPC分类号： H04N19/61 ,  H04N19/20 ,  H04N19/27

摘要： A method for decoding a video picture comprising coded structured regions and textured regions is disclosed. A reference texture patch is constituted of a part or of blocks of the structured region found around the textured region and the pixels of the textured region are synthesized sequentially according to a spiral type scanning around the textured region, the causal area being found inside the reference texture patch at least for the first round of synthesis.

摘要翻译： 公开了一种用于解码包括编码结构区域和纹理区域的视频图像的方法。 参考纹理贴片由纹理化区域周围的结构区域的一部分或多个块构成，纹理区域的像素根据纹理区域周围的螺旋型扫描顺序地合成，因果区域在参考文献 纹理补丁至少为第一轮合成。

公开(公告)号：US20120269263A1

公开(公告)日：2012-10-25

申请号：US13509813

申请日：2010-11-08

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： H04N7/50 ,  H04N7/26

CPC分类号： H04N19/157 ,  H04N19/105 ,  H04N19/122 ,  H04N19/124 ,  H04N19/129 ,  H04N19/176 ,  H04N19/593 ,  H04N19/61

摘要： A method for coding a current block of an image is disclosed that comprises: determining, for the current block, current coding parameters, determining, for at least one neighbouring block of the current block previously coded and reconstructed, a neighbouring residual block from current coding parameters, and coding the current block with the current coding parameters according to the neighbouring residual block.

摘要翻译： 公开了一种对图像的当前块进行编码的方法，包括：针对当前块确定当前编码参数，针对先前编码和重建的当前块的至少一个相邻块，确定来自当前编码的相邻残余块 参数，并根据相邻的残留块用当前编码参数对当前块进行编码。

公开(公告)号：US20120207217A1

公开(公告)日：2012-08-16

申请号：US12998921

申请日：2009-12-18

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： H04N19/577 ,  H04N19/107 ,  H04N19/139 ,  H04N19/172 ,  H04N19/176 ,  H04N19/517 ,  H04N19/523 ,  H04N19/527

摘要： A method for video coding of at least one digital picture sequence is disclosed. The pictures of said sequence can be intermediary pictures or key pictures used as references for the coding by motion compensation of intermediary pictures. The intermediary pictures are coded per area based on a global motion compensation GMC in the forward and backward direction from key pictures, the areas of the intermediary picture being constituted either by merging of global motion compensated key picture areas, or by conventional coding, the choice between merging and conventional coding being made according to the result of a measurement of coherency between the signals of global motion compensated key picture areas. A video coding device and a video decoding device are also disclosed.

摘要翻译： 公开了一种用于至少一个数字图像序列的视频编码的方法。 所述序列的图片可以是中间图片或用作通过中间图片的运动补偿编码的参考的关键图片。 基于来自关键图像的向前和向后方向上的全局运动补偿GMC，每个区域对中间图像进行编码，中间图像的区域通过合并全局运动补偿关键图像区域或通过常规编码，选择 根据全局运动补偿关键图像区域的信号之间的一致性的测量结果进行合并和常规编码之间的关系。 还公开了视频编码装置和视频解码装置。

公开(公告)号：US20120106641A1

公开(公告)日：2012-05-03

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

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 is described. The method comprises the following steps: a) determining for the current block a reference block from at least one motion data previously associated with the current block, b) verifying if a predefined condition is fulfilled, the 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, c) modifying the motion data according to the result of the verification and d) generating a final prediction block for the current block from the motion data of the current block.

摘要翻译： 描述了一种用于预测属于当前图像的当前块以便于当前块的编码或重构的方法。 该方法包括以下步骤：a）从先前与当前块相关联的至少一个运动数据确定当前块的参考块，b）验证是否满足预定义条件，该条件代表了当前块之间的时间变化 参考块的图像数据和从与参考块相关联的至少一个运动数据预先确定的参考块的预测块的图像数据，c）根据验证结果修改运动数据，以及d）生成 来自当前块的运动数据的当前块的最终预测块。