-
91.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。
-
92.发明申请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
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。
-
公开(公告)号：US08059722B2
公开(公告)日：2011-11-15
申请号：US11174165
申请日：2005-07-01
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。
-
公开(公告)号：US20110170599A1
公开(公告)日：2011-07-14
申请号：US12736613
申请日：2009-04-23
申请人： Edouard Francois , Olivier Le Meur , Jerome Vieron
发明人： Edouard Francois , Olivier Le Meur , Jerome Vieron
IPC分类号： H04N7/26
CPC分类号： H04N19/00024 , H04N19/105 , H04N19/136 , H04N19/17 , H04N19/23 , H04N19/577 , H04N19/61
摘要： A method for coding a picture portion of a picture of a video sequence is disclosed, at least one picture of the video sequence being a key picture. The method comprises the following steps: a) calculate a saliency map of the key picture, b) estimate for the picture portion to be coded, at least one motion vector pointing towards a portion of the key picture, c) motion compensate at least one portion of the saliency map using an estimated motion vector to obtain, for said picture portion, at least one portion of the predicted saliency map, and d) code the picture portion according to the saliency level of the portion of the predicted saliency map. The invention also relates to a method for decoding a binary stream, a coder able to code pictures of a video sequence and a decoder of a binary stream.
摘要翻译： 公开了一种用于对视频序列的图像的图像部分进行编码的方法，所述视频序列的至少一个图像是关键图像。 该方法包括以下步骤：a）计算关键图像的显着图，b）估计要编码的图像部分，至少一个指向关键图像的一部分的运动矢量，c）运动补偿至少一个 显影图的部分使用估计的运动矢量，以便为所述图像部分获得预测显着图的至少一部分，以及d）根据预测显着图的部分的显着性级别对图像部分进行编码。 本发明还涉及一种用于对二进制流进行解码的方法，能够对二进制流的视频序列的图像和解码器进行编码的编码器。
-
公开(公告)号：US20090304080A1
公开(公告)日：2009-12-10
申请号：US10585488
申请日：2005-01-03
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。
-
公开(公告)号：US20070116361A1
公开(公告)日：2007-05-24
申请号：US10583673
申请日：2004-12-14
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。
-
公开(公告)号：US20060013307A1
公开(公告)日：2006-01-19
申请号：US11170574
申请日：2005-06-29
申请人： Yannick Olivier , Edouard Francois , Franck Hiron
发明人： Yannick Olivier , Edouard Francois , Franck Hiron
CPC分类号： H04N19/61 , H04N19/107 , H04N19/112 , H04N19/139 , H04N19/176 , H04N19/194 , H04N19/53 , H04N19/537 , H04N19/85
摘要： The method is characterized in that the pre-analysis phase performs correlation level calculations of the even and odd field blocks of the current picture with the even and odd blocks of the current picture with the even and odd field blocks of the reference picture based on motion vectors calculated during this phase and corresponding to the blocks to impose, during the coding mode decision stage and among the inter coding modes, the inter coding between fields of the same parity or of opposing parity or the inter coding between frames, according to the correlation levels.
摘要翻译： 该方法的特征在于，预分析阶段使用当前图像的偶数和奇数块，利用基于运动的参考图像的偶数和奇数场块来执行当前图像的偶数和奇数场块的相关电平计算 在该阶段期间计算的矢量对应于在编码模式判定阶段期间和在帧间编码模式中，根据相关性在相同奇偶校验或相对奇偶校验的场之间或帧之间的帧间编码之间进行帧间编码的块 水平。
-
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。
-
99.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。
-
-
-
-
-
-
-
-
搜索结果
99 条记录 (耗时 0.036 秒)
