公开(公告)号：EP3301917A1

公开(公告)日：2018-04-04

申请号：EP16306279.7

申请日：2016-09-30

申请人： Thomson Licensing

发明人： THOREAU, Dominique ,  TURKAN, Mehmet ,  ALAIN, Martin ,  ZEPEDA SALVATIERRA, Joaquin

IPC分类号： H04N19/11 ,  H04N19/157 ,  H04N19/186 ,  H04N19/174 ,  H04N19/192 ,  H04N19/593

CPC分类号： H04N19/11 ,  H04N19/157 ,  H04N19/174 ,  H04N19/186 ,  H04N19/192 ,  H04N19/593

摘要： A spatial guided prediction technique uses reconstructed pixels of a first component of a digital video image block to determine prediction modes used to recursively build prediction blocks for the other components of the same digital video image block. The technique builds improved predictions resulting in smaller prediction residuals and less bits to code for a given image quality. In one embodiment, the prediction blocks for the subsequent digital video component blocks are built recursively line by line. In another embodiment, the prediction blocks for subsequent digital video component blocks are built recursively column by column.

摘要翻译： 空间引导预测技术使用数字视频图像块的第一分量的重建像素来确定用于递归地为同一数字视频图像块的其他分量建立预测块的预测模式。 该技术可以提高预测效果，从而减少预测残差，减少编码给定图像质量的比特数。 在一个实施例中，用于后续数字视频分量块的预测块是逐行递增地构建的。 在另一个实施例中，用于后续数字视频分量块的预测块被逐列递归地构建。

公开(公告)号：EP3154021A1

公开(公告)日：2017-04-12

申请号：EP15306605.5

申请日：2015-10-09

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

发明人： ALAIN, Martin ,  THOREAU, Dominique ,  GUILLEMOT, Christine ,  GUILLOTEL, Philippe

IPC分类号： G06T5/00

CPC分类号： G06T5/002 ,  G06T2207/10016

摘要： A method and an apparatus for de-noising an image, and in particular, de-noising an image using video epitome based on a source video image. An embodiment of the present principles provides a method of processing an image in a video, comprising: accessing an encoded version of the image and generating a decoded version of the image; accessing a video epitome associated with the image, wherein the video epitome was extracted from a source version of the image prior to encoding; and generating a de-noised version of the image using the decoded version of the image and the video epitome. The use of the epitome from a source version of the image provides for a high quality epitome for improving the de-noising process.

摘要翻译： 一种用于使图像去噪的方法和装置，特别是使用基于源视频图像的视频缩影来去除图像。 本原理的实施例提供了一种处理视频中的图像的方法，包括：访问图像的编码版本并生成图像的解码版本; 访问与图像相关联的视频缩略图，其中在编码之前从图像的源版本提取视频缩略图; 以及使用图像的解码版本和视频缩影来生成图像的去噪版本。 来自图像的源版本的缩影的使用提供了用于改善去噪过程的高质量缩写。

公开(公告)号：EP3113492A1

公开(公告)日：2017-01-04

申请号：EP15306049.6

申请日：2015-06-30

申请人： Thomson Licensing

发明人： LE PENDU, Mikaël ,  BOITARD, Ronan ,  ALAIN, Martin ,  THOREAU, Dominique

IPC分类号： H04N19/11 ,  H04N19/157 ,  H04N19/176 ,  H04N19/593

CPC分类号： H04N19/11 ,  H04N19/157 ,  H04N19/176 ,  H04N19/36 ,  H04N19/593 ,  H04N19/61

摘要： A method (700) for determining a prediction of a current block of an enhancement layer dedicated to a high dynamic range coding is provided. In the method, a coding mode capable of encoding the prediction of the current block is obtained (S705). Next, a first block of prediction including neighboring pixels of the collocated block is determined (S710), and a first intermediate patch of the low dynamic range is built (S715). Then, a second block of prediction including neighboring pixels of the current block is determined (S720, and a second intermediate patch of the high dynamic range is built (S725). Then, a transfer function is determined (S730) to transform the first intermediate patch to the second intermediate patch in a transform domain, a patch is built (S735) by applying the transfer function to a transformed initial patch of the base layer in a transform domain and then applying an inverse transform to the resulting patch so as to return in a pixel domain and the prediction of the current block of the enhancement layer is obtained (S740) by extracting a block from the patch. The extracted block in the patch is collocated to the current block of the enhancement layer in the second intermediate patch.

摘要翻译： 一种用于确定性采矿方法（700）提供专用于高动态范围编码的增强层的当前块的预测。 在该方法中，能够编码所述当前块的预测的编码模式中获得（S705）。 接着，预测的包括并置块的邻近像素的第一块是确定性的开采（S710），并且低动态范围的第一中间补丁是建立（S715）。 （然后，预测的包含当前块的邻近像素的第二块是确定性的开采（S720，和高动态范围的第二中间补丁是建立（S725），然后，传递函数是确定性的开采S730）以变换第一中间 修补到第二中间补丁在变换域中，贴片通过在变换域中将所述传递函数到基底层的一个变换初始补丁，然后应用逆变换，以将所得的贴剂，从而返回建（S735） 在像素域和增强层的当前块的通过从贴剂中提取的块的预测，获得（S740）。在贴片所提取的块被置在第二中间补丁增强层的当前块。

公开(公告)号：EP3357036A1

公开(公告)日：2018-08-08

申请号：EP16770720.7

申请日：2016-09-15

申请人： Thomson Licensing

发明人： THOREAU, Dominique ,  ALAIN, Martin ,  GUILLOTEL, Philippe ,  BOISSON, Guillaume

IPC分类号： G06T5/50 ,  H04N19/597 ,  H04N19/86

CPC分类号： H04N19/597 ,  G06T5/002 ,  G06T5/20 ,  G06T2207/10052 ,  H04N13/161 ,  H04N19/86

摘要： The present disclosure generally relates to a method for reducing the coding artefact of at least one pixel of a view (170) belonging to a matrix of views (17) obtained from light-field data associated with a scene,. According to present disclosure, the method is implemented by a processor and comprises for each said at least one pixel: - from said matrix of views (17), obtaining (51) at least one epipolar plane image (EPI) associated with said pixel, - applying (52) an artefact filtering on pixels of said epipolar plane image (EPI) - redistributing (53) the filtered pixels of the epipolar plane image in the matrix of views (17).

公开(公告)号：EP3147860A1

公开(公告)日：2017-03-29

申请号：EP15306505.7

申请日：2015-09-28

申请人： Thomson Licensing

发明人： THOREAU, Dominique ,  ALAIN, Martin ,  GUILLOTEL, Philippe ,  BOISSON, Guillaume

IPC分类号： G06T5/50 ,  H04N19/597 ,  H04N19/86

CPC分类号： H04N19/597 ,  G06T5/002 ,  G06T5/20 ,  G06T2207/10052 ,  H04N19/86

摘要： The present disclosure generally relates to a method for reducing the coding artefact of at least one pixel of a view (170) belonging to a matrix of views (17) obtained from light-field data associated with a scene,.
According to present disclosure, the method is implemented by a processor and comprises for each said at least one pixel:
- from said matrix of views (17), obtaining (51) at least one epipolar plane image (EPI) associated with said pixel,
- applying (52) an artefact filtering on pixels of said epipolar plane image (EPI)
- redistributing (53) the filtered pixels of the epipolar plane image in the matrix of views (17).

摘要翻译： 本发明基因的反弹涉及一种用于减少属于的从与场景相关联的光场数据获得的视图（17）的矩阵的图（170）的至少一个像素的编码假象。 。根据本发明，该方法是由一个处理器和包括用于每个所述实施至少一个像素： - 从所述的观点矩阵（17）获得，（51）的至少一个核平面图像（EPI）与所述像素相关联， - 施加（52）到人工制品上的。所述核平面图像（EPI）像素滤波 - 在视图的矩阵（17）重新分配（53）的对极面图像的滤波像素。

公开(公告)号：EP3142365A1

公开(公告)日：2017-03-15

申请号：EP15306408.4

申请日：2015-09-14

申请人： Thomson Licensing

发明人： THOREAU, Dominique ,  LE PENDU, Mikael ,  ALAIN, Martin ,  TURKAN, Mehmet

IPC分类号： H04N19/597 ,  H04N19/172 ,  H04N19/15 ,  H04N19/103 ,  H04N19/577

CPC分类号： H04N19/597 ,  H04N19/103 ,  H04N19/15 ,  H04N19/172 ,  H04N19/577

摘要： The present disclosure generally relates to a method for predicting at least one block of pixels of a view (170) belonging to a matrix of views (17) obtained from light-field data associated with a scene,
According to present disclosure, the method is implemented by a processor and comprises for at least one pixel to predict of said block of pixels:
- from said matrix of views (17), obtaining (51) at least one epipolar plane image (EPI) associated with said at least one pixel to predict,
- among a set of bidirectional prediction modes, determining (52) at least one optimal bidirectional prediction mode from a set of previous reconstructed pixels neighbouring said at least one pixel to predict in said at least one epipolar plane image,
- extrapolating (53) a prediction value of said at least one pixel to predict by using said at least one optimal bidirectional prediction mode.

摘要翻译： 本发明基因的反弹涉及一种方法，用于预测属于从与场景相关联的光场数据获得的视图的矩阵（17）的视图（170）的像素中的至少一个块，。据本发明，该方法是 由处理器实现的，并包括用于至少一个像素来预测所述像素块的： - 从与所述相关联的至少一个像素的所述视图矩阵（17）获得，（51）的至少一个核平面图像（EPI） 预测， - 一组双向预测模式中，确定的开采（52）从一组先前重建像素中的至少一个最佳双向预测模式邻近之所述至少一个像素中。所述预测的至少一个核平面图像， - 外推（53 ）上述的预测值的至少一个像素，以通过使用所述至少一个最佳双向预测模式预测。

公开(公告)号：EP3362945A1

公开(公告)日：2018-08-22

申请号：EP16782032.3

申请日：2016-10-11

申请人： Thomson Licensing

发明人： ALAIN, Martin ,  GUILLEMOT, Christine ,  THOREAU, Dominique ,  GUILLOTEL, Philippe

IPC分类号： G06K9/62 ,  G06T5/00

CPC分类号： G06K9/6223 ,  G06K9/6256 ,  G06T5/002 ,  G06T2207/20076 ,  G06T2207/20081 ,  G06T2207/20084

摘要： A method for clustering patches of a degraded version of an image is disclosed wherein the clusters are based on an error computed between a patch of the degraded version processed with an upgrade function and a patch of a full graded version of the image. In other words, the source image is used to determine clusters for the image to restore. A restoration framework based on a clustering according to the present principles is also disclosed wherein the optimal clusters are estimated from the degraded signal and aside indications obtained from the above described clustering method applied to a subset of the degraded signal for which the source signal is known.

公开(公告)号：EP3351000A1

公开(公告)日：2018-07-25

申请号：EP16769921.4

申请日：2016-09-14

申请人： Thomson Licensing

发明人： THOREAU, Dominique ,  ALAIN, Martin ,  TURKAN, Mehmet ,  GUILLOTEL, Philippe

IPC分类号： H04N19/597 ,  H04N19/172 ,  H04N19/15 ,  H04N19/103 ,  H04N19/577

CPC分类号： H04N19/103 ,  H04N19/15 ,  H04N19/172 ,  H04N19/577 ,  H04N19/597

摘要： The present disclosure generally relates to a method for predicting at least one block of pixels of a view (170) belonging to a matrix of views (17) obtained from light-field data associated with a scene, According to present disclosure, the method is implemented by a processor and comprises for at least one pixel to predict of said block of pixels: - from said matrix of views (17), obtaining (51) at least one epipolar plane image (EPI) associated with said pixel to predict, - among a set of unidirectional prediction modes, determining (52) at least one optimal unidirectional prediction mode from a set of previous reconstructed pixels neighboring said pixel to predict in said at least one epipolar plane image, - extrapolating (53) a prediction value of said pixel to predict by using said at least one optimal unidirectional prediction mode.

公开(公告)号：EP3318062A1

公开(公告)日：2018-05-09

申请号：EP16733456.4

申请日：2016-06-27

申请人： Thomson Licensing

发明人： THOREAU, Dominique ,  LE PENDU, Mikael ,  BOITARD, Ronan ,  ALAIN, Martin

IPC分类号： H04N19/11 ,  H04N19/157 ,  H04N19/176 ,  H04N19/593

CPC分类号： H04N19/11 ,  H04N19/157 ,  H04N19/176 ,  H04N19/36 ,  H04N19/593 ,  H04N19/61

摘要： A method (700) for determining a prediction of a current block of an enhancement layer dedicated to a high dynamic range coding is provided. In the method, a coding mode capable of encoding the prediction of the current block is obtained (S705). Next, a first block of prediction including neighboring pixels of the collocated block is determined (S710), and a first intermediate patch of the low dynamic range is built (S715). Then, a second block of prediction including neighboring pixels of the current block is determined (S720, and a second intermediate patch of the high dynamic range is built (S725). Then, a transfer function is determined (S730) to transform the first intermediate patch to the second intermediate patch in a transform domain, a patch is built (S735) by applying the transfer function to a transformed initial patch of the base layer in a transform domain and then applying an inverse transform to the resulting patch so as to return in a pixel domain and the prediction of the current block of the enhancement layer is obtained (S740) by extracting a block from the patch. The extracted block in the patch is collocated to the current block of the enhancement layer in the second intermediate patch.

公开(公告)号：EP3151559A1

公开(公告)日：2017-04-05

申请号：EP15306535.4

申请日：2015-09-29

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

发明人： ALAIN, Martin ,  GUILLEMOT, Christine ,  THOREAU, Dominique ,  GUILLOTEL, Philippe

IPC分类号： H04N19/117 ,  H04N19/174 ,  H04N19/463 ,  H04N19/86

CPC分类号： H04N19/117 ,  H04N19/174 ,  H04N19/463 ,  H04N19/86

摘要： A decoding method is disclosed that comprises:
- decoding (S110, S120) a plurality of picture blocks;
- clustering (S130) the plurality of decoded picture blocks into clusters;
- decoding (S140) at least one projection function for each cluster;
- applying (S150), on at least one decoded picture block, the at least one projection function associated with the cluster to which said at least one decoded picture block belongs.

摘要翻译： 的译码方法是游离缺失盘确实包括： - 解码（S110，S120）的画面块的多元性; - 聚类（S130）解码图像的块为簇的多元性; - 解码（S140），用于每个集群的至少一个突出的功能; - 施加（S150）中，至少一个解码后的图片的块上，与所述簇到哪个相关联的所述至少一个突出的功能所述至少一个解码后的图片块所属。