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    Method and device for encoding a block of an image and corresponding reconstructing method and device
    1.
    发明公开
    Method and device for encoding a block of an image and corresponding reconstructing method and device 审中-公开
    方法和用于编码的图像的块的装置和相关联的重建的方法和装置

    公开(公告)号：EP2627086A1

    公开(公告)日：2013-08-14

    申请号：EP12305144.3

    申请日：2012-02-10

    申请人： Thomson Licensing ,  Inria Institut National de Recherche en Informatique et en Automatique

    发明人： Chérigui, Safa ,  Guillemot, Christine ,  Thoreau, Dominique ,  Guillotel, Philippe

    IPC分类号： H04N7/26 ,  H04N7/34

    CPC分类号： H04N19/14 ,  H04N19/11 ,  H04N19/147 ,  H04N19/176

    摘要： The invention relates to image block encoding and decoding. More precisely, the invention relates to block prediction using reference blocks of the image.
    It is proposed a method which comprises using processing means for using at least the block for determining one reference block in an already encoded part of the image, encoding and reconstructing a part of the image, using at least the block for determining one reference block in the reconstructed part and a indicator referencing the one reference block, using the one reference block for determining at least one further reference block in the reconstructed part and encoding the determined indicator and a residual of the block with respect to a combination of the one and the at least one further reference block.
    Using the block for determination of the one reference block allows for selecting it such that it resembles the block and correlation with the block is maintained.

    摘要翻译： 本发明涉及图像块编码和解码。 更确切地说，本发明涉及使用图像的参考块来阻止预测。 因此建议使用处理，它包括一个方法的装置在至少使用所述块用于确定性采矿一个参考块的图像，编码已编码的部分和重构图像的一部分，使用至少在用于确定性采矿一个参考块的块 所重建的部分和参考所述一个参考块，使用用于确定性挖掘一个参考块所重建的部分的至少一个另外的参考块和编码的确定性开采指示符和块的残差相对于所述一个和所述的组合的指示器 至少一个另外的参考块。 使用块用于确定一个参考块的允许选择它检查做它类似于块和相关性与所述块被维持。

    Method for encoding and decoding an image block based on dynamic range extension, encoder and decoder
    2.
    发明公开
    Method for encoding and decoding an image block based on dynamic range extension, encoder and decoder 审中-公开
    由扩张的动态范围的，编码器和解码器，用于编码和图像块进行解码的方法

    公开(公告)号：EP2958329A1

    公开(公告)日：2015-12-23

    申请号：EP14305920.2

    申请日：2014-06-16

    申请人： Thomson Licensing ,  INRIA - Institut National de Recherche en Informatique et en Automatique

    发明人： Le Pendu, Mikaël ,  Thoreau, Dominique ,  Alain, Martin ,  Guillemot, Christine

    IPC分类号： H04N19/98 ,  H04N19/593 ,  H04N19/463 ,  H04N19/625 ,  H04N19/176 ,  H04N19/126 ,  H04N19/136

    CPC分类号： H04N19/625 ,  H04N19/126 ,  H04N19/136 ,  H04N19/176 ,  H04N19/42 ,  H04N19/45 ,  H04N19/463 ,  H04N19/593 ,  H04N19/98

    摘要： A method for encoding and decoding an image block, an encoder, and a decoder are provided. The method for encoding an image block comprises: determining a local dynamic range of the block; adaptively precision-extending pixel values of the block based on the local dynamic range of the block; and encoding the block with an adaptively extended precision. The method for decoding an image block comprises: determining a minimum pixel value of the block and an indicating value for indicating a precision extension factor according to precision extension information; decoding the block according to the indicating value; and de-extending precision of the decoded block based on the minimum pixel value of the block and the precision extension factor. The precision of the intermediate calculations may be improved without increasing an original intermediate bit depth used in intermediate calculations.

    摘要翻译： 提供了一种用于编码和解码的图像块，在编码器和解码器方法。 用于编码图像块的方法，包括：确定性采矿块的局部动态范围; 自适应精度延伸基于所述块的局部动态范围块的像素值; 并且编码具有在自适应地扩展精度的块。 对图像块进行解码的方法，包括：确定性采矿块和指示用于指示精度扩展因子gemäß到精度扩展信息值的最小像素值; 解码所述块gemäß到指示值; 和去扩展基于该块的最小像素值和精度扩展系数的解码块的精度。 中间计算的精度可以在没有在中间计算中使用的原始中间比特深度的增加得到提高。

    Method and apparatus for constructing an epitome from an image
    3.
    发明公开
    Method and apparatus for constructing an epitome from an image 审中-公开
    Verfahren und Vorrichtung zur Herstellung eines Epitoms eines Bildes

    公开(公告)号：EP2903288A1

    公开(公告)日：2015-08-05

    申请号：EP14305132.4

    申请日：2014-01-30

    申请人： Thomson Licensing ,  INRIA - Institut National de Recherche en Informatique et en Automatique

    发明人： Alain, Martin ,  Thoreau, Dominique ,  Guillotel, Philippe ,  Guillemot, Christine

    IPC分类号： H04N19/91 ,  H04N19/593 ,  H04N19/147

    CPC分类号： H04N19/176 ,  H04N19/147 ,  H04N19/593 ,  H04N19/89 ,  H04N19/99

    摘要： A method for constructing an epitome from an image divided into non overlapping blocks is disclosed. The method comprises:
    - determining (8), for each block, similar patches in the image, a similar patch being a patch with similar content;
    - constructing (16) at least one epitome chart for the picture from the similar patches;

    wherein determining (8), for each block, similar patches in the image comprises:
    a) determining (10), for each current block, similar blocks in the image, a similar block being a block with content similar to the content of the current block;
    b) determining (12), for one current block and for the similar blocks determined for the current block, similar patches in the image, a similar patch being a patch with content similar to the content of the current block;
    c) repeating (14) step b) for a next current block for which no similar patch is determined until at least one similar patch is determined for each block in the image.

    摘要翻译： 公开了一种从划分为非重叠块的图像构造缩影的方法。 该方法包括： - 确定（8）对于每个块，图像中的相似补丁，类似补丁是具有相似内容的补丁; - 从相似的贴片构建（16）至少一个图片的缩影图; 其中确定（8）对于每个块，图像中的相似补丁包括：a）确定（10）对于每个当前块，图像中的相似块，类似的块是具有与当前的内容相似的内容的块 块; b）确定（12）对于一个当前块和对于当前块确定的类似块，图像中的相似补丁，类似的补丁是具有与当前块的内容相似的内容的补丁; c）重复（14）步骤b）对于在图像中的每个块确定至少一个类似的片段之前不确定类似片段的下一个当前块。

    Method and device for encoding a block of an image and corresponding reconstructing method and device
    5.
    发明公开
    Method and device for encoding a block of an image and corresponding reconstructing method and device 审中-公开
    方法和用于编码的图像的块的装置和相关联的重建的方法和装置

    公开(公告)号：EP2615832A1

    公开(公告)日：2013-07-17

    申请号：EP12305050.2

    申请日：2012-01-13

    申请人： Thomson Licensing ,  Inria Institut National de Recherche en Informatique et en Automatique

    发明人： Cherigui, Safa ,  Guillemot, Christine ,  Thoreau, Dominique ,  Guillotel, Philippe

    IPC分类号： H04N7/26 ,  H04N7/34

    CPC分类号： H04N19/567 ,  H04N19/11 ,  H04N19/14 ,  H04N19/147 ,  H04N19/176 ,  H04N19/44 ,  H04N19/52 ,  H04N19/593 ,  H04N19/65

    摘要： The invention relates to image block encoding and decoding. More precisely, the invention relates to block prediction using reference blocks of the image.
    It is proposed a method which comprises using processing means for using at least the block for determining one reference block in an already encoded part of the image, encoding and reconstructing a part of the image, using at least the block for determining one reference block in the reconstructed part and a vector referencing the one reference block, using the one reference block for determining at least one further reference block in the reconstructed part and encoding the determined vector and a residual of the block with respect to a combination of the one and the at least one further reference block.
    Using the block for determination of the one reference block allows for selecting it such that it resembles the block and correlation with the block is maintained.

    摘要翻译： 本发明涉及图像块编码和解码。 更确切地说，本发明涉及使用图像的参考块来阻止预测。 因此建议使用处理，它包括一个方法的装置在至少使用所述块用于确定性采矿一个参考块的图像，编码已编码的部分和重构图像的一部分，使用至少在用于确定性采矿一个参考块的块 所重建的部分和参考所述一个参考块，使用用于确定性挖掘一个参考块所重建的部分的至少一个另外的参考块和编码的确定性开采矢量和块的相对于剩余的一个和所述的组合的矢量 至少一个另外的参考块。 使用块用于确定一个参考块的允许选择它检查做它类似于块和相关性与所述块被维持。

    Scalable encoding and decoding methods and corresponding devices with combined intraprediction and interlayer prediction
    6.
    发明公开
    Scalable encoding and decoding methods and corresponding devices with combined intraprediction and interlayer prediction 审中-公开
    Skalierbare Codierungs- und Decodierungsverfahren undzugehörigeVorrichtungen

    公开(公告)号：EP3026913A1

    公开(公告)日：2016-06-01

    申请号：EP14306911.0

    申请日：2014-11-27

    申请人： Thomson Licensing ,  INRIA - Institut National de Recherche en Informatique et en Automatique

    发明人： Le Pendu, Mikael ,  Turkan, Mehmet ,  Guillemot, Christine ,  Thoreau, Dominique ,  Racape, Fabien

    IPC分类号： H04N19/33

    CPC分类号： H04N19/33 ,  H04N19/52 ,  H04N19/59

    摘要： A scalable encoding method is disclosed that comprises for at least one block of an enhancement layer picture:
    - determining prediction information from at least a part of the enhancement layer picture spatially neighboring said at least one block of the enhancement layer picture and from a collocated part in a reconstructed base layer picture;
    - transforming, using the prediction information, a block of the reconstructed base layer picture collocated with said at least one block of the enhancement layer picture to form a prediction block; and
    - encoding a residual block obtained from said at least one block of the enhancement layer picture and from said prediction block.

    摘要翻译： 公开了一种可扩展编码方法，其包括对于增强层图像的至少一个块： - 从与增强层图像的所述至少一个块空间相邻的增强层图像的至少一部分以及来自分配部分 在重建的基层图像中; - 使用所述预测信息变换与所述增强层图像的所述至少一个块并置的所述重建的基本层图像的块，以形成预测块; 以及 - 从所述增强层图像的所述至少一个块和从所述预测块获得的残差块进行编码。

    Method and apparatus for building an estimate of an original image from a low-quality version of the original image and an epitome
    7.
    发明公开
    Method and apparatus for building an estimate of an original image from a low-quality version of the original image and an epitome 审中-公开
    对于具有低质量和Epitoms从一个版本的原始图像的估计的原始图像的方法和装置

    公开(公告)号：EP2941005A1

    公开(公告)日：2015-11-04

    申请号：EP14305637.2

    申请日：2014-04-29

    申请人： Thomson Licensing ,  INRIA - Institut National de Recherche en Informatique et en Automatique

    发明人： Guillemot, Christine ,  Alain, Martin ,  Thoreau, Dominique ,  Guillotel, Philippe

    IPC分类号： H04N19/91 ,  H04N19/19 ,  H04N19/36 ,  H04N19/176 ,  H04N19/147 ,  H04N19/61 ,  H04N19/593 ,  H04N19/90

    CPC分类号： H04N19/36 ,  H04N19/147 ,  H04N19/176 ,  H04N19/19 ,  H04N19/593 ,  H04N19/61 ,  H04N19/90 ,  H04N19/99

    摘要： The present invention concerns a method and apparatus for building an estimate ( Ŷ ) of an original image (Y) from a low-quality version ( Y l ) of the original image and an epitome ( E h ) calculated from an image. The method is characterized in that it comprises:
    - obtaining (11) a dictionary comprising at least one pair of patches, each pair of patches comprising a patch of the epitome, called a first patch, and a patch of the low-quality version of the original image, called a second patch, a pair of patches being extracted for each patch of the epitome by inplace matching patches from the epitome and those from the low-quality image,
    - for each patch of the low-quality version of the original image, selecting (12) at least one pair of patches within the dictionary of pairs of patches, each pair of patches being selected according to a criterion involving the patch of the low-quality version of the original image and the second patch of said selected pair of patches,
    - obtaining (13) a mapping function from said at least one selected pair of patches, and
    - projecting (14) the patch of the low-quality version of the original image into a final patch ( X̃ h ) using the mapping function.

    摘要翻译： 本发明涉及一种用于从原始图像的低质量版本（Y l）和从图像计算缩影率（Eh）建立的原始图像（Y）的估计（Y）的方法和装置。 该方法的特征在于，这样做是包括： - 获得（11）一个字典包括至少一对膜片，每个一对贴片包括缩影的补丁，称为第一补丁，和的低质量版本的贴片 原始图像，称为第二补片，一对贴片的被提取的缩影的每个贴片通过从缩影和那些从低画质图像，就地匹配补丁 - 为原始的低质量版本每个补丁 图像，选择对补丁的字典（12）内的至少一对贴片，每对补丁的被选择雅丁到标准涉及的原始图像的低质量版本的补丁和选定的。所述的第二补丁 对贴片， - 获得（13）从所述至少一个映射函数选择的一对补丁，以及 - 投影（14）的原始图像的低质量版本的补丁成最终补丁（X h）利用所述 映射功能。