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公开(公告)号：US09781446B2
公开(公告)日：2017-10-03
申请号：US13514989
申请日：2010-11-25
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.
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公开(公告)号：US09363514B2
公开(公告)日：2016-06-07
申请号：US13575105
申请日：2011-01-19
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。
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3.发明申请METHOD FOR RECONSTRUCTING A CURRENT BLOCK OF AN IMAGE AND CORRESPONDING ENCODING METHOD, CORRESPONDING DEVICES AS WELL AS STORAGE MEDIUM CARRYING AN IMAGES ENCODED IN A BIT STREAM 有权用于重构图像的电流块和相应的编码方法的方法，相应的设备以及用于在位流中编码的图像的存储介质公开(公告)号：US20130208982A1
公开(公告)日：2013-08-15
申请号：US13817070
申请日：2011-08-08
IPC分类号： G06T9/00
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。
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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：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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公开(公告)号：US20120218131A1
公开(公告)日：2012-08-30
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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8.发明授权Method for reconstructing a current block of an image and corresponding encoding method, corresponding devices as well as storage medium carrying an images encoded in a bit stream 有权用于重建图像的当前块和相应的编码方法的方法，对应的装置以及承载以比特流编码的图像的存储介质公开(公告)号：US09159141B2
公开(公告)日：2015-10-13
申请号：US13817070
申请日：2011-08-08
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。
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9.发明申请公开(公告)号：US20120269263A1
公开(公告)日：2012-10-25
申请号：US13509813
申请日：2010-11-08
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。
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10.发明授权Method for decoding a stream of coded data representative of a sequence of images and method for coding a sequence of images 有权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
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。
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