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1.发明申请Method and device for choosing a motion vector for the coding of a set of blocks 审中-公开用于选择用于一组块的编码的运动矢量的方法和装置公开(公告)号：US20060008005A1
公开(公告)日：2006-01-12
申请号：US11174175
申请日：2005-07-01
CPC分类号： H04N19/56 , G06T7/207 , G06T7/223 , G06T2207/10016 , G06T2207/20016 , G06T2207/20021 , H04N19/19 , H04N19/53
摘要： The present invention relates to a method and a device for hierarchical estimation of motion intended to choose a motion vector from among a plurality of motion vectors for a set of blocks of an origin image divided into blocks. A calculation of an energy function over the set of blocks for each of the motion vectors is carried out. This calculation implements a substep of size of calculation of a Lagrangian constraint adapted to the size of the set of blocks. A choice of a motion vector is carried out by minimizing the energy function over the said set of blocks.
摘要翻译： 本发明涉及一种用于分层估计运动矢量的运动矢量分层估计方法和装置，所述运动矢量用于分割成块的原始图像的一组块的多个运动矢量。 执行针对每个运动矢量的块集合上的能量函数的计算。 该计算实现了适合于该组块的大小的拉格朗日约束的计算大小的子步骤。 运动矢量的选择是通过使所述组块上的能量函数最小化来进行的。
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公开(公告)号：US20050213828A1
公开(公告)日：2005-09-29
申请号：US10954774
申请日：2004-09-30
CPC分类号： H04N19/577 , H04N19/51 , H04N19/61
摘要： The process for coding the current block comprises a step of selecting the predicted block from among candidate blocks, the selection being dependent on a difference DBdrx,dry between the co-located block of the current image block lying in an image of type B and the block of a reference image, the latter block being designated by the motion vector with components drx, dry which is allocated to co-located block and which is colinear with the motion vector Vp allocated to the current block and designating the candidate block. Applications relate to data compression, the transmission of digital images using the video coding standard comprising a direct prediction mode, for example the h263, MPEG4 or h261 standard.
摘要翻译： 用于编码当前块的处理包括从候选块中选择预测块的步骤，该选择取决于所述块之间的差D D， 位于B型图像和参考图像块中的当前图像块的位置块，后一块由具有分配给共址的块的分量drx的运动向量指定，并且其与 分配给当前块的运动矢量Vp并指定候选块。 应用涉及数据压缩，使用包括直接预测模式（例如h263，MPEG4或h261标准）的视频编码标准传输数字图像。
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公开(公告)号：US07702168B2
公开(公告)日：2010-04-20
申请号：US10954774
申请日：2004-09-30
CPC分类号： H04N19/577 , H04N19/51 , H04N19/61
摘要： The process for coding the current block comprises a step of selecting the predicted block from among candidate blocks, the selection being dependent on a difference DBdrx,dry between the co-located block of the current image block lying in an image of type B and the block of a reference image, the latter block being designated by the motion vector with components drx, dry which is allocated to co-located block and which is colinear with the motion vector Vp allocated to the current block and designating the candidate block. The process relates to data compression, the transmission of digital images using the video coding standard comprising a direct prediction mode, for example the h263, MPEG4 or h261 standard.
摘要翻译： 用于编码当前块的处理包括从候选块中选择预测块的步骤，该选择取决于差异DBdrx，位于类型B的图像中的当前图像块的同位置块之间的干扰， 参考图像的块，后一块由具有分配给共址的块的分量drx，干燥的运动矢量指定，并且与分配给当前块的运动矢量Vp并联并指定候选块。 该过程涉及数据压缩，使用包括直接预测模式（例如h263，MPEG4或h261标准）的视频编码标准传输数字图像。
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公开(公告)号：US20060008007A1
公开(公告)日：2006-01-12
申请号：US11175130
申请日：2005-07-05
摘要： The method containing a pre-analysis phase with pel-recursive type motion estimation and an actual coding phase with block matching motion estimation for picture blocks constituted by one or more sub-blocks, wherein the coding phase also comprises a motion vector selection stage for the picture sub-blocks based on the motion vectors calculated by matching for the block containing the sub-block and based on the motion vectors calculated by the pel-recursive type estimation for the pixels or the pixel groups belonging to the sub-block, and a calculation stage of the best partition of a picture block into sub-blocks based on the correlation calculations taking into account the motion vectors selected from the sub-blocks constituting a block.
摘要翻译： 该方法包含具有像素递归类型运动估计的预分析阶段和由一个或多个子块构成的图像块的块匹配运动估计的实际编码相位，其中编码阶段还包括用于 基于通过对包含子块的块进行匹配而计算出的运动矢量的图像子块，并且基于通过对于属于子块的像素或像素组的像素递归类型估计计算出的运动矢量，以及 考虑到从构成块的子块中选择的运动矢量，基于相关计算将图块的最佳分区划分成子块的计算阶段。
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5.发明授权Method for decoding a stream representative of a sequence of pictures, method for coding a sequence of pictures and coded data structure 有权用于对表示图像序列的流进行解码的方法，用于编码图像序列和编码数据结构的方法公开(公告)号：US09232223B2
公开(公告)日：2016-01-05
申请号：US13138240
申请日：2010-01-29
IPC分类号： H04N7/26 , H04N7/32 , H04N19/105 , H04N19/102 , H04N19/137 , H04N19/117 , H04N19/103 , H04N19/176 , H04N19/70 , H04N19/61 , H04N19/109 , H04N19/192
CPC分类号： H04N19/105 , H04N19/109 , H04N19/117 , H04N19/137 , H04N19/176 , H04N19/192 , H04N19/61 , H04N19/70
摘要： A method for decoding a stream of coded data representative of a sequence of pictures is described. The method comprises the following steps: decoding at least one part of the stream into decoded data, selecting a brightness variation model representative of a brightness variation between the pictures of the sequence from a set of at least two brightness variation models, and reconstructing the picture data from decoded data by taking into account the brightness variation model. A method for coding a picture sequence and a data structure are further disclosed.
摘要翻译： 描述用于对表示图像序列的编码数据流进行解码的方法。 该方法包括以下步骤：将流的至少一部分解码为解码数据，从一组至少两个亮度变化模型中选择表示序列图像之间的亮度变化的亮度变化模型，并重建图像 通过考虑亮度变化模型的解码数据的数据。 进一步公开了对图像序列和数据结构进行编码的方法。
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6.发明授权Method for coding a picture sequence, corresponding method for reconstruction and stream of coded data representative of said sequence 有权用于编码图像序列的方法，相应的重建方法和表示所述序列的编码数据流公开(公告)号：US08792557B2
公开(公告)日：2014-07-29
申请号：US13068220
申请日：2011-05-05
申请人： Edouard Francois , Dominique Thoreau , Shasha Shi
发明人： Edouard Francois , Dominique Thoreau , Shasha Shi
IPC分类号： H04N7/12
CPC分类号： H04N19/573 , H04N19/103 , H04N19/159 , H04N19/46 , H04N19/61
摘要： A method for reconstruction of a picture sequence coded in accordance with a coding method specifying a set of coding tools and/or their associated coding parameters is disclosed. The pictures being divided into coding entities. The method for reconstruction according to the invention comprises the following steps for each coding entity coded in INTER mode: determining for the coding entity at least one reference picture, and reconstructing the coding entity from the at least one reference picture with coding tools configured by coding parameters associated with the coding tools. Advantageously, the coding tools and/or the associated coding parameters depend on the reference picture.
摘要翻译： 公开了一种根据指定一组编码工具和/或其相关编码参数的编码方法编码的图像序列的重构方法。 图片分为编码实体。 根据本发明的重建方法包括：以INTER模式编码的每个编码实体的以下步骤：为编码实体确定至少一个参考图片，并且从至少一个参考图片重建编码实体，其中编码工具通过编码 与编码工具相关的参数。 有利地，编码工具和/或相关联的编码参数取决于参考图片。
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公开(公告)号：US20130195181A1
公开(公告)日：2013-08-01
申请号：US13575105
申请日：2011-01-19
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。
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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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