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11. 发明公开

EP3220643A1 METHOD AND DEVICE FOR ENCODING AT LEAST ONE IMAGE UNIT, AND METHOD AND DEVICE FOR DECODING A STREAM REPRESENTATIVE OF AT LEAST ONE IMAGE UNIT 审中-公开
标题翻译：用于至少一个图像单元编码的方法和装置以及用于解码至少一个图像单元的流表示的方法和装置
公开(公告)号：EP3220643A1
公开(公告)日：2017-09-20
申请号：EP16305272.3
申请日：2016-03-14
申请人： Thomson Licensing
发明人： BORDES, Philippe , RACAPE, Fabien , POIRIER, Tangi
IPC分类号： H04N19/176 , H04N19/70 , H04N19/117 , H04N19/157 , H04N19/82
CPC分类号： H04N19/117 , H04N19/157 , H04N19/17 , H04N19/176 , H04N19/182 , H04N19/70 , H04N19/82
摘要： A method for encoding at least one image unit is disclosed that comprises:
- encoding (41) said at least one image unit,
- reconstructing (42) said at least one image unit into a reconstructed image unit,
- applying (43) an offset filter to said at least one reconstructed image unit ; wherein applying an offset filter to said at least one reconstructed image unit comprises:
- determining (431) at least one current category in a set of categories for at least one pixel of the reconstructed image unit,
- encoding (432) an offset value for at least one category of said set of categories ;
- applying (433) a pre-filter to the at least one pixel of the reconstructed image unit assigned to said category only in the case where said current category is equal to said category having an encoded offset value;
- adding (434) said encoded offset value to said at least one pixel of the reconstructed image unit.
摘要翻译：公开了一种用于对至少一个图像单元进行编码的方法，其包括： - 对所述至少一个图像单元进行编码（41）， - 将所述至少一个图像单元重建（42）为重建图像单元， - 将偏移过滤到所述至少一个重构图像单元; 其中将偏移滤波器应用于所述至少一个重构图像单元包括： - 为重建图像单元的至少一个像素确定（431）一组类别中的至少一个当前类别， - 编码（432）所述一组类别中的至少一个类别; - 仅在所述当前类别等于具有编码偏移值的所述类别的情况下，将预滤波器应用（433）至分配给所述类别的重构图像单元的所述至少一个像素; - 将所述编码的偏移值添加（434）到重建的图像单元的所述至少一个像素。

12. 发明公开

EP3213511A1 A METHOD AND DEVICE FOR ESTIMATING A COLOR MAPPING BETWEEN TWO DIFFERENT COLOR-GRADED VERSIONS OF A SEQUENCE OF PICTURES 审中-公开
标题翻译：用于估计图片序列的两个不同颜色渐变版本之间的颜色映射的方法和装置
公开(公告)号：EP3213511A1
公开(公告)日：2017-09-06
申请号：EP15784664.3
申请日：2015-10-22
申请人： Thomson Licensing
发明人： BORDES, Philippe , LASSERRE, Sebastien , ANDRIVON, Pierre
IPC分类号： H04N9/67 , G09G5/02 , G06T7/40 , H04N1/60 , G03B21/20 , H04N21/41 , G06T7/00
CPC分类号： H04N1/6066 , G09G5/026 , G09G2340/06 , H04N1/6005 , H04N1/6019 , H04N1/6058 , H04N9/67
摘要： The present disclosure relates to a method and device for processing a sequence of pictures comprising estimating a color mapping between a first color-graded version of said sequence of pictures whose values are represented in a first color volume and a second color-graded version of said sequence of pictures whose values are represented in a second color volume. The method is characterized in that it comprises: - obtaining (10) a first composite picture by assembling at least two pictures of the first color-graded version of the sequence of pictures in order that the content of said first composite picture comprises at least a part of the content of each of said at least two pictures, and the second composite picture is obtained by assembling at least two pictures of the second color- graded version of the sequence of pictures in order that the content of said second composite picture comprises at least a part of the content of each of said at least two pictures; and - estimating (20) said color mapping between said first and second color-graded versions of the picture by estimating a color mapping function that maps the color values of said first composite picture onto the color values of said second composite picture.
摘要翻译：本发明涉及一种用于处理图片序列的方法和设备，包括：估计所述图片序列的第一颜色分级版本与第二颜色分级版本之间的颜色映射，所述第一颜色分级版本的值以第一颜色体积表示，其值以第二颜色体积表示的图像序列。该方法的特征在于其包括： - 通过组装在图像序列的第一颜色分级版本中暂时位于确定的时刻的至少两个图像和通过组装第二组合图像来获得（10）第一合成图像在相同的确定的时刻，暂时位于图片序列的第二颜色分级版本中的相同数量的图片; 以及 - 通过估计将所述第一合成图片的颜色值映射到所述第二合成图片的颜色值上的颜色映射函数来估计（20）所述图片的所述第一和第二颜色分级版本之间的所述颜色映射。

13. 发明公开

EP3122032A1 A METHOD AND DEVICE FOR ESTIMATING A COLOR MAPPING BETWEEN TWO DIFFERENT COLOR-GRADED VERSIONS OF A PICTURE 审中-公开
标题翻译：方法和设备，用于估计颜色分配之间两个版本不同的颜色分级的图像序列
公开(公告)号：EP3122032A1
公开(公告)日：2017-01-25
申请号：EP15306188.2
申请日：2015-07-22
申请人： Thomson Licensing
发明人： ANDRIVON, Pierre , LASSERRE, Sebastien , BORDES, Philippe
IPC分类号： H04N1/60 , G06T5/00
CPC分类号： H04N1/6066 , G09G5/02 , G09G2340/06 , H04N9/67 , H04N9/68
摘要： The present disclosure relates to a method and device for estimating a color mapping between a first and a second color-graded version of a picture by iteratively estimating a color mapping function that maps each color value of said first color-graded version of the picture represented in a first color volume onto a color value of said second color-graded version of the picture represented in a second color volume. The method is characterized in that it comprises obtaining (100) a first estimate of the color mapping by:
- obtaining (200) a first sub-set of color values from the color values of said first color-graded version of the picture and a second sub-set of color values from the color values of said second color-graded version of the picture; ;
- obtaining (220) iteratively the first estimate of the color mapping function, from a default color mapping, by mapping the first set of color values onto the second set of color values.
摘要翻译：本发明涉及一种方法和设备，用于通过迭代地估计颜色映射函数并映射的图像的所述第一颜色分级的版本每个颜色值表示估计第一和图像的第二颜色分级的版本之间的颜色映射以第一颜色体积走上的以第二颜色体积代表的图象的所述第二颜色分级的版本的颜色值。获得（200）的颜色值从画面的和所述第一颜色分级的版本的颜色值的第一子集 - ：所述方法是在这样做是包括获得（100）由所述colormapping的第一估计为特征的第二子集从所述画面的所述第二颜色分级的版本的颜色值的颜色值; ; - 获得（220）迭代地颜色映射函数的第一估计，从默认颜色映射，通过映射所述第一组颜色值到第二组颜色值。

14. 发明公开

EP3104609A1 METHOD AND APPARATUS FOR COLOR GAMUT SCALABILITY (CGS) VIDEO ENCODING WITH ARTIFACT DETECTION 审中-公开
标题翻译： VERFAHREN UND VORRICHTUNG ZUR FARBENGAMUT-SKALIERBARKEITS-（CGS）VIDEOCODIERUNG MIT ARTEFAKTNACHWEIS
公开(公告)号：EP3104609A1
公开(公告)日：2016-12-14
申请号：EP15305865.6
申请日：2015-06-08
申请人： Thomson Licensing
发明人： CAI, Kangying , HIRON, Franck , BORDES, Philippe
IPC分类号： H04N19/186 , H04N19/30 , H04N19/103 , H04N19/154
CPC分类号： H04N19/186 , H04N19/103 , H04N19/147 , H04N19/154 , H04N19/30
摘要： In scalable video coding, Enhancement Layer (EL) pictures are usually predicted from decoded Base Layer (BL) pictures. When the EL pictures and the BL pictures are represented with different color spaces, color gamuts, transforming the decoded BL pictures, for example, to Inter-Layer Reference (ILR) pictures in the color space/gamut of the EL may improve the prediction. To accurately predict from the BL, the color space of the BL pictures can be partitioned into multiple octants, wherein each octant is associated with a respective set of color mapping function (CMF) parameters. The partitioning of color space may cause color discontinuity artifacts in the ILR pictures. In one embodiment, we avoid using a block of an ILR picture as a prediction block for the EL pictures if we determine that a color discontinuity artifact may exist in the block of the ILR picture.
摘要翻译：在可伸缩视频编码中，增强层（EL）图像通常从解码的基本层（BL）图像预测。当EL图像和BL图像用不同的颜色空间表示时，色域，将解码的BL图像变换为例如EL的颜色空间/色域中的层间参考（ILR）图像可以改善预测。为了从BL准确预测，BL图像的颜色空间可以被划分成多个八分圆，其中每个八分圆与相应的一组颜色映射函数（CMF）参数相关联。颜色空间的分割可能导致ILR图片中的色彩不连续的伪像。在一个实施例中，如果我们确定在ILR图像的块中可能存在颜色不连续的伪迹，则我们避免使用ILR图像的块作为EL图像的预测块。

15. 发明公开

EP2984836A1 METHOD FOR ENCODING AND METHOD FOR DECODING A LUT AND CORRESPONDING DEVICES 有权转让
标题翻译：方法用于解码LUT以及相关设备，编码及方法
公开(公告)号：EP2984836A1
公开(公告)日：2016-02-17
申请号：EP14712249.3
申请日：2014-03-17
申请人： Thomson Licensing
发明人： BORDES, Philippe , ANDRIVON, Pierre , JOLLY, Emmanuel
IPC分类号： H04N19/50 , H04N19/30 , H04N19/186 , H04N19/463
CPC分类号： H04N19/597 , H04N19/186 , H04N19/30 , H04N19/44 , H04N19/463 , H04N19/50 , H04N19/96
摘要： A method for encoding a LUT defined as a lattice of vertices is disclosed. At least one value is of each vertex of the lattice. The method comprises for a current vertex: predicting the at least one value of said current vertex from another value which is for example obtained from reconstructed values of neighboring vertices; and encoding in a bitstream at least one residue computed between the at least one value of the current vertex and its prediction in a bitstream.

16. 发明公开

EP2939425A1 METHOD OF CODING A FIRST AND A SECOND VERSION OF AN IMAGE INTO A BASE LAYER AND AN ENHANCEMENT LAYER BASED ON A COLOR GAMUT MAPPING MODEL 审中-公开
标题翻译：方法进行编码的第一个和基础层的图像的第二个版本补强层基于颜色范围图型号
公开(公告)号：EP2939425A1
公开(公告)日：2015-11-04
申请号：EP13814975.2
申请日：2013-12-23
申请人： Thomson Licensing
发明人： STAUDER, Jurgen , BORDES, Philippe , POREE, Corinne
IPC分类号： H04N19/30
CPC分类号： H04N19/30 , H04N19/136 , H04N19/60
摘要： The method comprises the steps of: - determining, for each color of the second version, corresponding scalar value(s) of one or two variable(s) such that, if said scalar value(s) is applied to the color gamut mapping model, a mapped color is obtained having a minimal distance to the corresponding color of the first version (i.e. enhanced) to the color of second version, - encoding the determined scalar value(s) into an enhancement layer.

17. 发明公开

EP2870755A1 VIDEO CODING AND DECODING METHOD WITH ADAPTATION OF CODING MODES 审中-公开
标题翻译：法用于视频编码和译码模式中的解码适应
公开(公告)号：EP2870755A1
公开(公告)日：2015-05-13
申请号：EP13734990.8
申请日：2013-06-27
申请人： Thomson Licensing
发明人： FRANCOIS, Edouard , THOREAU, Dominique , VIERON, Jérôme , BORDES, Philippe
IPC分类号： H04N7/00
CPC分类号： H04N19/103 , H04N19/107 , H04N19/109 , H04N19/132 , H04N19/157 , H04N19/176 , H04N19/50 , H04N19/61
摘要： This invention relates to a method for coding or decoding pixel blocks. According to the invention, the number of usable modes at the coder and at the decoder is limited to a subset of the set of possible coding modes and the content of this subset is regularly adapted to the content of the images of the sequence. Thus, the coder or decoder always only has a reduced number q

18. 发明公开

EP2801191A1 METHOD OF AND DEVICE FOR ENCODING AN HDR VIDEO TOGETHER WITH AN LDR VIDEO, METHOD OF AND DEVICE FOR RECONSTRUCTING ONE OF AN HDR VIDEO AND AN LDR VIDEO CODED TOGETHER AND NON-TRANSITORY STORAGE MEDIUM 有权转让
标题翻译：方法和设备一起为编码HDR影片，用于回收TOGETHER编码式HDR视频和LDR视频和非瞬态存储介质的视频LDR，方法和装置
公开(公告)号：EP2801191A1
公开(公告)日：2014-11-12
申请号：EP12801771.2
申请日：2012-12-18
申请人： Thomson Licensing
发明人： OLIVIER, Yannick , TOUZE, David , BORDES, Philippe , HIRON, Franck
IPC分类号： H04N7/26 , H04N7/32 , H04N7/46 , H04N7/50
CPC分类号： H04N19/597 , H04N19/30 , H04N19/36 , H04N19/50 , H04N19/59 , H04N19/61
摘要： The inventors realized that representing HDR content using LDR content and HDR residual is not unproblematic. The invention therefore proposes representing HDR content using LDR content, LDR residual and global illumination data, instead. That is, it is proposed a method of encoding an HDR video of high dynamic range together with an LDR video, the LDR video providing a lower dynamic range depiction of the HDR video content, the method comprising using processing means for encoding one video of the LDR video and a further LDR video extracted from the HDR video independent from the other video of the LDR video and the HDR video and predictive encoding the other video using the one video as reference, and lossless encoding global illumination data further extracted from the HDR video. This has the advantage that prediction is more stable and globally optimal predictors are more easily found.

19. 发明公开

EP1537739A1 METHOD OF DISTRIBUTING ENCRYPTED PORTIONS OF AN AUDIOVISUAL PROGRAMME 审中-公开
标题翻译：方法用于分发视听节目的VERSCHL SSELTER PARTS
公开(公告)号：EP1537739A1
公开(公告)日：2005-06-08
申请号：EP03771113.2
申请日：2003-07-18
申请人： Thomson Licensing S.A.
发明人： BORDES, Philippe , GUILLOTEL, Philippe , FRANCOIS, Edouard
IPC分类号： H04N7/16
CPC分类号： H04N21/44055 , H04N7/165 , H04N7/1675 , H04N21/23476 , H04N21/2543 , H04N21/25875 , H04N21/26613 , H04N21/4623 , H04N21/6175 , H04N21/6187 , H04N21/63345
摘要： The method of distributing encrypted portions of an audiovisual programme to user terminals (T1, T2), in which the successive portions of the programme are encrypted with the aid of different keys, consists, on initiation, from a user terminal, of a telephone communication with a call centre (4), in transmitting in sequence from this call centre and during the telephone communication the keys to the user terminal, doing so in a manner synchronized with the distribution of the successive encrypted portions of the programme.

20. 发明授权

EP1099352B1 PROCEDE ET DISPOSITIF DE QUANTIFICATION POUR COMPRESSION VIDEO 有权
标题翻译：量化视频压缩
公开(公告)号：EP1099352B1
公开(公告)日：2003-04-02
申请号：EP00922710.9
申请日：2000-04-21
申请人： Thomson Licensing S.A.
发明人： RUELLOU, Pierre , BORDES, Philippe
IPC分类号： H04N7/50 , G06T9/00
CPC分类号： H04N19/194 , H04N19/124 , H04N19/126 , H04N19/15 , H04N19/152 , H04N19/154 , H04N19/176 , H04N19/182 , H04N19/61

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