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公开(公告)号：US20120320982A1
公开(公告)日：2012-12-20
申请号：US13514989
申请日：2010-11-25
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。
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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。
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公开(公告)号：US20120243607A1
公开(公告)日：2012-09-27
申请号：US13379067
申请日：2010-06-21
IPC分类号： H04N7/32
CPC分类号： H04N19/48 , H04N19/124 , H04N19/154 , H04N19/176 , H04N19/18 , H04N19/46 , H04N19/593
摘要： A method for coding an image divided into sub-regions is described. The coding method comprises the following steps: extracting from the image sub-regions representative of other sub-regions of the image, coding the sub-regions representative of other sub-regions at a first quality, and coding the other sub-regions at a second quality strictly lower than the first quality.
摘要翻译： 描述了分割成子区域的图像的编码方法。 该编码方法包括以下步骤：从表示图像的其他子区域的图像子区域中提取出代表其他子区域的子区域的第一质量，以及对其他子区域进行编码 第二品质严格低于第一品质。
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14.发明授权公开(公告)号：US08094718B2
公开(公告)日：2012-01-10
申请号：US10592627
申请日：2005-01-12
IPC分类号： H04N7/36
CPC分类号： H04N19/615 , H04N19/114 , H04N19/13 , H04N19/136 , H04N19/139 , H04N19/14 , H04N19/147 , H04N19/177 , H04N19/19 , H04N19/192 , H04N19/44 , H04N19/61 , H04N19/63
摘要： In video encoding, the video frames are spatio-temporally filtered for reduction of spatial and temporal redundancy before they are entropy encoded. Known filtering schemes consider temporally successive frames and are static. It is probable but not necessary that successive frames are most efficient to encode. Therefore, a plurality or all possible frame order permutations are considered for a group of frames (GOP) and evaluated based on a global criterion, which is the sum of local criterion values computed over successive subsets of permuted frames. The local criterion value is deduced from motion estimation processed on each considered set of frames. The best ordering is chosen as the one that minimizes the global criterion value.
摘要翻译： 在视频编码中，对视频帧进行时空滤波，以便在熵编码之前减少空间和时间冗余。 已知的滤波方案考虑时间上连续的帧，并且是静态的。 连续的帧是编码最有效的可能但不是必需的。 因此，对于一组帧（GOP）考虑多个或所有可能的帧顺序排列，并且基于全局准则来评估，该全局标准是在连续的置换帧的子集上计算的局部标准值的总和。 从每个考虑的帧集合处理的运动估计推导出局部标准值。 选择最佳顺序作为最小化全局准则值的顺序。
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15.发明申请Method Of Encoding And Decoding An Image Sequence By Means Of Hierarchical Temporal Analysis 有权通过分层时间分析对图像序列进行编码和解码的方法公开(公告)号：US20080025394A1
公开(公告)日：2008-01-31
申请号：US10590307
申请日：2005-02-21
IPC分类号： H04N7/26
CPC分类号： H04N19/615 , H04N19/107 , H04N19/124 , H04N19/13 , H04N19/1883 , H04N19/61 , H04N19/63 , H04N19/647
摘要： The method realizes a motion compensated temporal filtering (MCTF), the temporal filtering being replaced by an intra mode coding to obtain at least one low (L) or high (H) frequency picture if the current picture has a level of correlation with a lower previous picture at a threshold, the low frequency pictures obtained (L) being thus scaled to be adapted, at the energy level, to the pictures obtained by motion compensated temporal filtering, and comprises, at the end of analysis:a selection of the pictures obtained by intra coding of a picture of a low decomposition level with the additional condition, for the high frequency pictures, that this picture is derived itself from an intra coding. a calibration of the picture selected by carrying out at least one reverse step of the scaling step. The applications relate to video compression with temporal prediction.
摘要翻译： 该方法实现运动补偿时间滤波（MCTF），如果当前图像具有与较低的（L）或高（H）频率图像的相关水平，则时间滤波被帧内模式编码替代以获得至少一个低（L）或高（H） 所获得的低频图像（L）因此被缩放以在能量水平上适应于通过运动补偿时间滤波获得的图像，并且包括在分析结束时：选择图像 通过附加条件对低分辨率级别的图像进行帧内编码而获得的高频图像，该图像是从帧内编码本身导出的。 通过执行缩放步骤的至少一个反向步骤来校准所选择的图像。 该应用涉及到具有时间预测的视频压缩。
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16.发明申请公开(公告)号：US20070201557A1
公开(公告)日：2007-08-30
申请号：US10592627
申请日：2005-01-12
IPC分类号： H04B1/66
CPC分类号： H04N19/615 , H04N19/114 , H04N19/13 , H04N19/136 , H04N19/139 , H04N19/14 , H04N19/147 , H04N19/177 , H04N19/19 , H04N19/192 , H04N19/44 , H04N19/61 , H04N19/63
摘要： In video encoding, the video frames are spatio-temporally filtered for reduction of spatial and temporal redundancy before they are entropy encoded. Known filtering schemes consider temporally successive frames and are static. It is probable but not necessary that successive frames are most efficient to encode. Therefore, a plurality or all possible frame order permutations are considered for a group of frames (GOP) and evaluated based on a global criterion, which is the sum of local criterion values computed over successive subsets of permuted frames. The local criterion value is deduced from motion estimation processed on each considered set of frames. The best ordering is chosen as the one that minimizes the global criterion value.
摘要翻译： 在视频编码中，对视频帧进行时空滤波，以便在熵编码之前减少空间和时间冗余。 已知的滤波方案考虑时间上连续的帧，并且是静态的。 连续的帧是编码最有效的可能但不是必需的。 因此，对于一组帧（GOP）考虑多个或所有可能的帧顺序排列，并且基于全局准则来评估，该全局标准是在连续的置换帧的子集上计算的局部标准值的总和。 从每个考虑的帧集合处理的运动估计推导出局部标准值。 选择最佳顺序作为最小化全局准则值的顺序。
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17.发明授权Method for coding and reconstructing a pixel block and corresponding devices 有权用于对像素块进行编码和重建的方法及其对应的设备公开(公告)号：US09135721B2
公开(公告)日：2015-09-15
申请号：US13615314
申请日：2012-09-13
IPC分类号： G06K9/48 , G06T9/00 , H04N19/52 , H04N19/523
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。
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18.发明授权公开(公告)号：US08755618B2
公开(公告)日：2014-06-17
申请号：US13638625
申请日：2011-03-28
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 neighboring 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。
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公开(公告)号：US08674859B2
公开(公告)日：2014-03-18
申请号：US13381911
申请日：2010-06-22
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。
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20.发明申请公开(公告)号：US20130136372A1
公开(公告)日：2013-05-30
申请号：US13638625
申请日：2011-03-28
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。
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