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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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52.发明授权公开(公告)号：US09628819B2
公开(公告)日：2017-04-18
申请号：US10546715
申请日：2004-02-26
IPC分类号： H04N7/12 , H04N19/615 , H04N19/105 , H04N19/63 , H04N19/61 , H04N19/517 , H03M7/40 , H04N19/13
CPC分类号： H04N19/615 , H03M7/40 , H03M7/4006 , H04N19/105 , H04N19/13 , H04N19/517 , H04N19/61 , H04N19/63
摘要： The following steps are carried out in the inventive method: estimation of movement between a current moment corresponding to the current image and a reference moment corresponding to a reference image in order to provide a movement vector, an entropic coding for a high spatial frequency signal relating in the current image, taking into account a temporal context based on the estimation of a movement, one of the parameters used to calculate the temporal context being the parity of a component of the movement vector. Applications are related to video compression with temporal prediction.
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公开(公告)号：US09031332B2
公开(公告)日：2015-05-12
申请号：US10912833
申请日：2004-08-06
IPC分类号： G06K9/36 , H04N19/34 , H04N19/176 , H04N19/115 , H04N19/154
CPC分类号： H04N19/34 , H04N19/115 , H04N19/154 , H04N19/176
摘要： The present invention relates to a device for compressing a source image by means of a base layer, coding a base image, and of an enhancement layer, coding a residual existing between the source image and the base image, the source image and the base image being structured as blocks of pixels. According to the invention, such a device is characterized in that it comprises means for generating the enhancement layer of a block as a function of the quality of restitution of this block, determined by comparing the coding of this block in the source image with the coding of this block in the base image, and/or as a function of information coded by this block of pixels.
摘要翻译： 本发明涉及一种用于通过基本层压缩源图像，对基本图像进行编码的设备以及对源图像和基本图像之间存在的残差，源图像和基本图像进行编码的增强层 被构造为像素块。 根据本发明，这样一种装置的特征在于，它包括用于通过将源图像中的该块的编码与编码的比较确定的块来生成块的增强层作为该块的恢复质量的函数的装置 和/或作为由该像素块编码的信息的函数。
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公开(公告)号：US08160159B2
公开(公告)日：2012-04-17
申请号：US10485027
申请日：2002-07-24
CPC分类号： H04N21/2365 , H04N19/107 , H04N19/174 , H04N19/176 , H04N19/55 , H04N19/61 , H04N21/23614 , H04N21/242 , H04N21/4302 , H04N21/4312 , H04N21/4347 , H04N21/4348
摘要： The process for coding a mosaic of images giving a stream of coded data the mosaic being composed of subimages, the subimages being composed of image elements, resynchronization markers in the stream allowing resynchronization of the data at reception level, wherein the subimages are placed under one another in the image to be coded so as to give a mosaic, the mosaic is coded element by element according to a TV-type scan so as to provide data of the stream, the first element of each subimage being identified, and a resynchronization marker is placed in the stream, before each first element of a subimage, so as to identify the data relating to the subimage.
摘要翻译： 编码图像马赛克的过程，给出编码数据流，马赛克由子图像组成，子图像由图像元素组成，流中的再同步标记允许在接收电平处重新同步数据，其中子图像放置在一个 要编码的图像中的另一个以便产生马赛克，马赛克根据TV型扫描逐个进行编码，以便提供流的数据，被识别的每个子图像的第一元素和重新同步标记 在子图像的每个第一元素之前被放置在流中，以便识别与子图像有关的数据。
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55.发明申请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：US20110274174A1
公开(公告)日：2011-11-10
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
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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56.发明申请METHOD FOR MODIFYING A REFERENCE BLOCK OF A REFERENCE IMAGE, METHOD FOR ENCODING OR DECODING A BLOCK OF AN IMAGE BY HELP OF A REFERENCE BLOCK AND DEVICE THEREFORE AND STORAGE MEDIUM OR SIGNAL CARRYING A BLOCK ENCODED BY HELP OF A MODIFIED REFERENCE BLOCK 有权用于修改参考图像的参考块的方法，用于通过参考块的帮助来编码或解码图像块的方法以及由其调用的存储介质或信号进行修改的参考块所编码的块公开(公告)号：US20110135211A1
公开(公告)日：2011-06-09
申请号：US12737707
申请日：2009-08-07
IPC分类号： G06K9/36
CPC分类号： H04N19/136 , H04N19/105 , H04N19/176 , H04N19/61
摘要： The invention is related to a method for modifying a reference block of a reference image. That is, the method comprises transforming the reference block into a first set of coefficients, modifying the first set of coefficients by help of one or more weights and inverse transforming the modified first set of coefficients wherein said weights are determined by help of one or more further pixels of the current image and by help of one or more further reference pixels of the reference image. Using further pixels of the current image as well as further reference pixels of the reference image allows spectral weights to be determined such that they reflect fading effects. Especially, if a reference frame consists of two cross-faded frames of which one shall be predicted by help of said reference frame, then, spectral domain weighting allows for separating the relevant of the two frames.
摘要翻译： 本发明涉及一种用于修改参考图像的参考块的方法。 也就是说，该方法包括将参考块变换为第一组系数，通过一个或多个权重的帮助来修改第一组系数，并对经修改的第一组系数进行逆变换，其中所述权重通过一个或多个 通过参考图像的一个或多个另外的参考像素的帮助来获得当前图像的另外的像素。 使用当前图像的另外的像素以及参考图像的其他参考像素允许确定光谱权重，使得它们反映衰落效应。 特别地，如果参考帧由两个交叉褪色的帧组成，其中一个将通过所述参考帧的帮助来预测，则频域加权允许分离两个帧的相关。
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公开(公告)号：US07864863B2
公开(公告)日：2011-01-04
申请号：US10558140
申请日：2004-05-01
摘要： The present invention relates to a method of coding and/or decoding groups of pictures. According to the invention, during the temporal decomposition of a stream of pictures within the framework of 3D wavelet processing, the number of pictures, the choice of the reference picture and the direction of temporal decomposition for each picture sequence of GOP type are adapted in order to minimize the number of unconnected pixels.
摘要翻译： 本发明涉及图像组编码和/或解码方法。 根据本发明，在3D小波处理的框架内的图像流的时间分解期间，对GOP类型的每个图像序列的图像数量，参考图像的选择和时间分解的方向进行顺序地调整 以最小化未连接像素的数量。
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58.发明申请Method for coding a video image taking into account the part relating to a component of a movement vector 有权考虑到与运动矢量的分量相关的部分来对视频图像进行编码的方法公开(公告)号：US20070189389A1
公开(公告)日：2007-08-16
申请号：US10546715
申请日：2004-02-26
CPC分类号： H04N19/615 , H03M7/40 , H03M7/4006 , H04N19/105 , H04N19/13 , H04N19/517 , H04N19/61 , H04N19/63
摘要： The following steps are carried out in the inventive method: estimation of movement between a current moment corresponding to the current image and a reference moment corresponding to a reference image in order to provide a movement vector, an entropic coding for a high spatial frequency signal relating in the current image, taking into account a temporal context based on the estimation of a movement, one of the parameters used to calculate the temporal context being the parity of a component of the movement vector. Applications are related to video compression with temporal prediction.
摘要翻译： 在本发明的方法中执行以下步骤：估计与当前图像相对应的当前时刻之间的移动和与参考图像相对应的参考时刻，以便提供运动矢量，对与高空间频率信号相关的熵编码 在当前图像中，考虑到基于运动估计的时间上下文，用于计算时间上下文的参数之一是运动矢量的分量的奇偶性。 应用与时间预测的视频压缩有关。
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公开(公告)号：US20060039479A1
公开(公告)日：2006-02-23
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。
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公开(公告)号：US20050213655A1
公开(公告)日：2005-09-29
申请号：US10912833
申请日：2004-08-06
CPC分类号： H04N19/34 , H04N19/115 , H04N19/154 , H04N19/176
摘要： The present invention relates to a device for compressing a source image by means of a base layer, coding a base image, and of an enhancement layer, coding a residual existing between the source image and the base image, the source image and the base image being structured as blocks of pixels. According to the invention, such a device is characterized in that it comprises means for generating the enhancement layer of a block as a function of the quality of restitution of this block, determined by comparing the coding of this block in the source image with the coding of this block in the base image, and/or as a function of information coded by this block of pixels.
摘要翻译： 本发明涉及一种用于通过基本层压缩源图像，对基本图像进行编码的设备以及对源图像和基本图像之间存在的残差，源图像和基本图像进行编码的增强层 被构造为像素块。 根据本发明，这样一种装置的特征在于，它包括用于通过将源图像中的该块的编码与编码的比较确定的块来生成块的增强层作为该块的恢复质量的函数的装置 和/或作为由该像素块编码的信息的函数。
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