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公开(公告)号：EP1521477A1
公开(公告)日：2005-04-06
申请号：EP04104541.0
申请日：2004-09-20
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 (2) from among candidate blocks, the selection being dependent on a difference D B drx,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 the 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： 用于对当前块进行编码的过程包括从候选块中选择预测块（2）的步骤，该选择取决于位于当前图像块的同位置块之间的差D drx 类型B的图像和参考图像的块，后一块由具有分配给共址的块的分量drx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。 应用涉及数据压缩，使用包括直接预测模式的视频编码标准（例如h263，MPEG4或h261标准）传输数字图像。
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2.发明公开
公开(公告)号：EP1505837A1
公开(公告)日：2005-02-09
申请号：EP04077277.4
申请日：2004-07-30
IPC分类号： H04N7/26
CPC分类号： H04N19/34 , H04N19/115 , H04N19/154 , H04N19/176
摘要： The present invention relates to a device (210) 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 (250) 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（210）和对源图像和基本图像之间存在的残差进行编码的增强层，源图像和 基本图像被构造为像素块。 根据本发明，这种装置的特征在于，其包括用于通过比较该块的编码来确定作为该块的恢复质量的函数的块的增强层的装置（250） 在源图像中具有基本图像中的该块的编码，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：EP1276330A3
公开(公告)日：2003-01-22
申请号：EP02291162.2
申请日：2002-05-07
IPC分类号： H04N7/26
CPC分类号： H04N19/577 , H04N19/132 , H04N19/176 , H04N19/55 , H04N19/61
摘要： The device is characterized in that it comprises means for preventing the "skipped macroblock" mode of coding of a macroblock of an image of P type on the basis of a correlation item measuring the correlation of this macroblock or of the co-located macroblock of the previous I or P image with the co-located macroblock of a next image of B type, in the order of coding and using a threshold.
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公开(公告)号：EP1276330A2
公开(公告)日：2003-01-15
申请号：EP02291162.2
申请日：2002-05-07
IPC分类号： H04N7/26
CPC分类号： H04N19/577 , H04N19/132 , H04N19/176 , H04N19/55 , H04N19/61
摘要： The device is characterized in that it comprises means for preventing the "skipped macroblock" mode of coding of a macroblock of an image of P type on the basis of a correlation item measuring the correlation of this macroblock or of the co-located macroblock of the previous I or P image with the co-located macroblock of a next image of B type, in the order of coding.
摘要翻译： 该装置的特征在于它包括用于基于测量该宏块或者该宏块的相同宏块的相关性的相关项来防止P型图像的宏块的“跳过宏块”模式的编码装置 先前的I或P图像与编码顺序中的B类型的下一图像的共位宏块。
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5.发明公开Device and method for the compression or decompression of digital images 有权Gerätund Verfahren zur Kompression oder Dekompression digitaler Bilder
公开(公告)号：EP1511323A1
公开(公告)日：2005-03-02
申请号：EP04102950.5
申请日：2004-06-24
IPC分类号： H04N7/26
摘要： The present invention relates to a device for the compression and/or decompression (260) of digital images (212) coded by means of a base layer (216 22 ), generated by a method of compression using a compression stepsize (QP), and by means of an enhancement layer (216 40 ), generated by coding the residual existing between the compressed image and the image coded by the base layer.
According to the invention, the device is characterized in that it comprises means (278, 280, 282) for determining a compression stepsize (Q det ) relating to the image coded by the base layer (216 22 ) and by the enhancement layer (216 40 ), and means for instructing a filtering of this coded image as a function of this determined stepsize (Q det ).摘要翻译： 本发明涉及一种用于通过使用压缩步长（QP）的压缩方法生成的借助于基本层（21622）编码的数字图像（212）的压缩和/或解压缩（260）的装置，以及通过 通过对存在于压缩图像与由基础层编码的图像之间的残差进行编码而生成的增强层（21640）的装置。 根据本发明，该装置的特征在于它包括用于确定与由基本层（21622）编码的图像相关的压缩步长（Qdet）的装置（278,280,282）和由增强层 （21640），以及用于根据该确定的步骤（Qdet）指示对该编码图像进行过滤的装置。
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6.发明公开Blockwise MPEG coding process with different block resolution 有权Blockweise MPEG-Kodierung mit unterchiedlicherBlockauflösung
公开(公告)号：EP1241895A1
公开(公告)日：2002-09-18
申请号：EP02290404.9
申请日：2002-02-20
IPC分类号： H04N7/30
CPC分类号： H04N19/649 , H04N19/17 , H04N19/23 , H04N19/29 , H04N19/33
摘要： The invention relates to a process for coding images transmitted according to the so-called multiresolution technique. According to this process, a step of pixel level processing of so-called mixed blocks of pixels, that is to say those shared between at least one zone of a first resolution and at least one zone of a second resolution, is performed.
A block is thus transmitted, the pixels of whose zone of the first resolution are assigned this first resolution and the pixels of whose zone of second resolution are assigned this second resolution.摘要翻译： 本发明涉及一种用于编码根据所谓的多分辨率技术传输的图像的方法。 根据该处理，执行所谓的混合像素块的像素级处理的步骤，也就是说，在第一分辨率的至少一个区域和至少一个第二分辨率区域之间共享的像素级处理。 因此传输块，将其第一分辨率的区域的像素分配给该第一分辨率，并且将其第二分辨率的区域的像素分配给该第二分辨率。
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7.发明公开Process for the colour format conversion of an image sequence 审中-公开Farbformatumwunglungsverfahrenfüreine Bildfolge
公开(公告)号：EP1185107A2
公开(公告)日：2002-03-06
申请号：EP01401966.5
申请日：2001-07-23
IPC分类号： H04N7/26
CPC分类号： H04N19/895 , H04N19/105 , H04N19/14 , H04N19/176 , H04N19/186 , H04N19/187 , H04N19/30 , H04N19/44 , H04N19/51
摘要： The process is characterized in that, for a coded pixel group to be converted, if the mode of coding used is of the inter type with no residue(6), the conversion is performed by a copy (8, 10) of a converted pixel group of a preceding image (11) linked by the motion vector associated with said coded pixel group.
Applications relate to the displaying and composing of images.摘要翻译： 该过程的特征在于，对于要转换的编码像素组，如果所使用的编码模式是不具有余数的帧间类型（6），则通过转换像素的复制（8,10）来执行转换 通过与所述编码像素组相关联的运动矢量链接的前一图像（11）的组。 应用涉及图像的显示和组合。
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公开(公告)号：EP1544792A1
公开(公告)日：2005-06-22
申请号：EP03293216.2
申请日：2003-12-18
发明人： Le Meur, Olivier , Thoreau, Dominique , François, Edouard , Le Callet, Patrick , Barba, Dominique
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 (E1) of said image according to the luminance (A) component and if said image is a color image, according to the luminance (A) component and according to the chrominance components (Cr1, Cr2),
Perceptual sub-bands decomposition (E3, T2, T'2, T"2) of said components (A, Cr1, Cr2) according to the visibility threshold of a human eye,
Extraction (E7) of the salient elements of the sub-bands related to the luminance (A) component,
Contour enhancement (E8, T7) of said salient elements in each sub-band related to the luminance (A) component,
Calculation (T7) of a saliency map from the contour enhancement, for each sub-band related to the luminance (A) component.
Creation (T8) of the saliency map as a function of the saliency maps obtained for each sub-band.摘要翻译： 本发明涉及一种装置和用于创建图像的显着图的方法。 它包括以下步骤：投影（E1）所述图像雅丁亮度（A）分量并且如果所述图像是彩色图像，雅丁亮度（A）成分和雅丁到色度分量（CR1，CR2） 感知子波段分解（E3，T2，T“2，T” 2）所述组分（a，CR1，CR2）的雅丁到子的突出元件，提取（E7）一人眼的可见度阈值 相关的亮度（A）分量，轮廓增强（E8，T7）频带的所述从轮廓增强，与显着性图的亮度（A）分量，计算（T7）为每个每个子带凸元件 子带相关的亮度（A）分量。创作显着图的显着性图获得的每个子带的函数（T8）。
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公开(公告)号：EP1303144A1
公开(公告)日：2003-04-16
申请号：EP02292276.9
申请日：2002-09-18
IPC分类号： H04N7/30
CPC分类号： H04N19/42 , H04N19/129 , H04N19/157 , H04N19/159 , H04N19/172 , H04N19/593 , H04N19/61
摘要： The process is characterized in that it performs the inverse operations (26, 27, 28) of the successive coding operations, in an inverse order, coefficient by coefficient rather than block by block.
Applications relate to the compression of video data.摘要翻译： 该过程的特征在于，其以相反的顺序，以系数为单位，而不是逐块执行逐次编码操作的反向操作（26,27,28）。 应用涉及视频数据的压缩。
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10.发明公开
公开(公告)号：EP1296526A1
公开(公告)日：2003-03-26
申请号：EP02292092.0
申请日：2002-08-23
CPC分类号： H04N19/142 , H04N19/107 , H04N19/503 , H04N19/51 , H04N19/61
摘要： The process is characterized in that it calculates (8, 9) the predicted position of the current macroblock to be coded in the next image or vop, by considering the order of display of the images, and in that a coding parameter for the macroblock (10, 11) depends on whether or not the predicted macroblock lies outside the next image or vop.
摘要翻译： 该处理的特征在于，通过考虑图像的显示顺序，计算（8,9）要在下一图像或vop中编码的当前宏块的预测位置，并且在宏块的编码参数（ 10,11）取决于预测的宏块是否位于下一个图像或vop之外。
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