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1. 发明公开

EP3343924A1 METHOD AND APPARATUS FOR ENCODING AND DECODING MOTION INFORMATION 审中-公开
公开(公告)号：EP3343924A1
公开(公告)日：2018-07-04
申请号：EP17305001.4
申请日：2017-01-03
申请人： Thomson Licensing
发明人： Robert, Antoine , Leleannec, Fabrice , Galpin, Franck
IPC分类号： H04N19/52 , H04N19/159 , H04N19/176
CPC分类号： H04N19/52 , H04N19/159 , H04N19/176 , H04N19/523 , H04N19/577
摘要： A Frame Rate Up-Conversion (FRUC) derivation process, based on frame rate up-conversion techniques, is developed in the reference software JEM (Joint Exploration Model) by the Joint Video Exploration Team (JVET). In one embodiment, a modified FRUC derivation process improves the performances of the current FRUC tool is provided. For example, some candidates of a bi-predictive pair may be discarded initially, which would save signification processing time. The discarding decision may depend on various criteria such as, e.g., a ratio between matching costs of a bi-predictive pair from two reference picture lists, a difference between the matching costs of a bi-predictive pair normalized by their respective template areas.

2. 发明公开

EP2960854A1 Method and device for determining a set of modifiable elements in a group of pictures 审中-公开
标题翻译：用于确定图像组中的一组修改的元素的方法和设备
公开(公告)号：EP2960854A1
公开(公告)日：2015-12-30
申请号：EP14306037.4
申请日：2014-06-27
申请人： Thomson Licensing
发明人： Robert, Antoine , Doerr, Gwenaël
IPC分类号： G06T1/00 , H04N21/8358 , H04N19/467 , H04N19/593 , H04N19/51
CPC分类号： G06T1/005 , G06K9/46 , G06K2009/4666 , G06T1/0028 , G06T2201/0053 , H04N19/44 , H04N19/467 , H04N19/51 , H04N19/593 , H04N21/23418 , H04N21/44008 , H04N21/8358
摘要： A method for determining a set of modifiable elements in a group of pictures of a coded bit-stream representative of an audio video content is disclosed. The method comprises determining (S12) a set of a candidate modifiable element comprising a modified value of the coded bit-stream and a spatial propagation map associated with the modified value ; determining (S14) a heat map comprising, for each pixel of a frame, an information representative of the usage of said pixel for temporal prediction during the decoding of said coded bit-stream ; obtaining (S16) a modifiable element among candidate modifiable elements of the coded bit-stream according to the heat map and the spatial propagation map of the modifiable element.
摘要翻译：一种用于确定性采矿方法的一组的基团编码的代表音频视频内容的位流的图像中修改的元件中的游离缺失盘。该方法包括确定开采（S12）包括所述经译码的位流和与所述修改的值相关联的空间传播地图的修改值的一组候选修改元件的; 确定性开采（S14）的热图。所述编码比特流的解码过程中，其包括，对于帧的每个像素，以代表所述像素用于时间预测的使用的信息; 获取（S16）的编码比特流gemäß到热图和修改的元素的空间传播地图的候选者可修改的元素之间的一个可修改的元件。

3. 发明公开

EP2611065A3 Method for selectively scrambling bit-streams 审中-公开
标题翻译：用于选择性地加扰比特流的方法
公开(公告)号：EP2611065A3
公开(公告)日：2013-07-31
申请号：EP12197596.5
申请日：2012-12-17
申请人： Thomson Licensing
发明人： Robert, Antoine , Lefebvre, Frédéric , Chupeau, Bertrand
IPC分类号： H04L9/18 , H04N7/167 , H04N21/2347 , H04N21/4405 , H04N21/235
CPC分类号： H04N7/167 , H04L9/065 , H04L2209/608 , H04N21/23476 , H04N21/2353 , H04N21/44055
摘要： The invention relates to a method for selectively scrambling a coded bit-stream, the method comprising a step of determining at least one modifiable part in the coded bit-stream, wherein the compliance, regarding a coding standard, of a modified coded bit-stream comprising an alternative modifiable part is not affected; a step of selecting at least one modifiable part, wherein the rendering of a compliant modified coded bit-stream comprising selected alternative modifiable part is perceptually affected compared to the rendering of the coded bit-stream; a step of substitution, for each of the at least one selected modifiable part, of original modifiable part in the coded bit-stream by alternative modifiable part resulting in a compliant selectively scrambled bit-stream. The invention also relates to associated method for descrambling.
摘要翻译：本发明涉及一种用于选择性地加扰编码比特流的方法，该方法包括确定编码比特流中的至少一个可修改部分的步骤，其中关于编码标准遵从修改的编码比特流包括替代的可修改部分不受影响; 选择至少一个可修改部分的步骤，其中与所述编码比特流的呈现相比，包括所选择的可选择可修改部分的依从性修改的编码比特流的呈现受到感知影响; 对于所述至少一个所选可修改部分中的每一个，通过替代可修改部分来替换所述编码比特流中的原始可修改部分，从而导致符合选择性加扰的比特流。本发明还涉及用于解扰的相关方法。

4. 发明公开

EP2442563A1 Method for guaranteing watermark embedding by using bit stream corruption 审中-公开
标题翻译： Verfahren zurGewährleistungder Wasserzeicheneinbettung mittels Bitstromkorruption
公开(公告)号：EP2442563A1
公开(公告)日：2012-04-18
申请号：EP10306129.7
申请日：2010-10-15
申请人： Thomson Licensing
发明人： Robert, Antoine , Doerr, Gwenael , Durand, Alain
IPC分类号： H04N7/167
CPC分类号： G06T1/0021 , H04N21/234345 , H04N21/23476 , H04N21/440245 , H04N21/44055 , H04N21/8358
摘要： The invention relates to a method for preventing the bypassing of watermark embedding in a bit-stream (C o ) representative of audio/video data. The method is remarkable in that it comprises a step of corrupting (E100) the bit-stream wherein original blocks in the bit-stream are replaced by corrupted blocks producing a bit-stream (C c ) whose perceptual quality is degraded; and a step of simultaneously watermarking and repairing (E101) the corrupted bit-stream wherein corrupted blocks are replaced either by watermarked blocks or original blocks producing a repaired and watermarked bit-stream (C w ) whose perceptual quality is recovered.
The invention also relates to a device for watermarking and repairing (400) a corrupted bit-stream and to a device for preparing (500) a corrupted bit-stream, wherein the original bit-stream is representative of audio/video data.
摘要翻译：本发明涉及一种防止在表示音频/视频数据的比特流（C o）中绕过水印嵌入的方法。该方法是显着的，其包括破坏（E100）比特流的步骤，其中比特流中的原始块被损坏的块替换，产生感知质量下降的比特流（C c）以及同步水印和修复（E101）损坏的比特流的步骤，其中损坏的块被水印块或原始块替换，产生其感知质量被恢复的修复和加水印的比特流（C w）。本发明还涉及一种用于水印和修复（400）损坏比特流的设备和用于准备（500）损坏比特流的设备，其中原始比特流表示音频/视频数据。

5. 发明公开

EP2960855A1 METHOD AND DEVICE FOR DETERMINING A SET OF MODIFIABLE ELEMENTS IN A GROUP OF PICTURES 有权转让
标题翻译：方法和设备，用来确定修改的元素的设置图像的GROUP
公开(公告)号：EP2960855A1
公开(公告)日：2015-12-30
申请号：EP15171044.9
申请日：2015-06-08
申请人： Thomson Licensing
发明人： Doerr, Gwenaël , Robert, Antoine
IPC分类号： G06T1/00 , H04N21/8358 , H04N19/467 , H04N19/593 , H04N19/51
摘要： A method for determining a set of modifiable elements in a group of pictures of a coded bit-stream representative of an audio video content is disclosed. The method comprises determining (S12) a set of a candidate modifiable elements wherein a candidate modifiable element comprises a modified value of the coded bit-stream and a spatial propagation map associated with the modified value, a spatial propagation map (SP6) comprising pixels whose decoding is impacted when the modified value is placed in the coded bit stream ; determining (S14) a heat map for each reference frame, the heat map comprising, for each pixel of the reference frame, an information representative of the usage of said pixel for temporal prediction during the decoding of said part of the coded bit-stream coding a group of pictures; obtaining (S16) a set of modifiable elements among candidate modifiable elements, a modifiable element having a spatial propagation map that does not overlap with corresponding heat map.
摘要翻译：一种用于确定性采矿方法的一组的基团编码的代表音频视频内容的位流的图像中修改的元件中的游离缺失盘。该方法包括确定开采（S12）一组候选修改元件worin候选修改元件包括所述编码比特流的修改值，并与修改后的值，空间传播地图（SP6）相关联的空间传播地图的包括像素谁的解码被冲击当改性值编码比特流中被放置; 确定性开采（S14）的热图针对每个基准帧，热图中的编码比特流的编码的所述部分进行解码期间包括，对于所述参考帧来代表所述像素用于时间预测的使用的信息的各像素一组图像; 获取（S16）的一组候选修改的元素之间的修改的元件，具有空间传播地图可修改的元件也不会与相应的热地图重叠。

6. 发明公开

EP2843964A1 Method for watermarking a content 失效转让
标题翻译：一种用于一个水印的内容的方法
公开(公告)号：EP2843964A1
公开(公告)日：2015-03-04
申请号：EP14182169.4
申请日：2014-08-25
申请人： Thomson Licensing
发明人： Robert, Antoine , Doerr, Gwenael , Alvarez Gomez, Omar
IPC分类号： H04N21/845 , H04N21/8358 , H04N21/2343 , H04N21/254 , H04N21/2389
CPC分类号： G06F21/16 , G06T1/0021 , H04N1/32144 , H04N21/23439 , H04N21/23892 , H04N21/2541 , H04N21/8358 , H04N21/8456
摘要： The invention relates to a method for watermarking a content, wherein the content is available in different versions on a server for at least a client and wherein the different versions of the content are subdivided into temporally aligned chunks. The method comprises obtaining, for each version of the content, candidate locations for watermarking; determining a watermark payload bit insertion rate according to a minimum path, wherein the minimum path comprises, for all sets of temporally aligned chunks, the chunks with the smallest number of candidate locations; and generating watermark embedding metadata for each version of the content such that the watermark payload bit insertion rate is the same. The invention further relate to devices for implementing the method.

7. 发明公开

EP3343925A1 METHOD AND APPARATUS FOR ENCODING AND DECODING MOTION INFORMATION 审中-公开
公开(公告)号：EP3343925A1
公开(公告)日：2018-07-04
申请号：EP17305002.2
申请日：2017-01-03
申请人： Thomson Licensing
发明人： Robert, Antoine , Poirier, Tangi , Urban, Fabrice
IPC分类号： H04N19/52 , H04N19/105 , H04N19/176 , H04N19/139 , H04N19/523
CPC分类号： H04N19/52 , H04N19/105 , H04N19/139 , H04N19/176 , H04N19/523
摘要： A Frame Rate Up-Conversion (FRUC) derivation process, based on frame rate up-conversion techniques, is developed in the reference software JEM (Joint Exploration Model) by the Joint Video Exploration Team (JVET). In one embodiment, a modified FRUC derivation process improves the performance of the current FRUC tool is provided. For example, an initial list of motion vector candidates defined in the FRUC derivation process may be reordered, and/or one or more of the ordered motion vector candidates in the defined list may be removed to improve the efficiency of the process. The reordering and/or the removal may be based on, e.g., one or more of previously determined motion vector candidates of one or more previously decoded blocks. In addition, the adaptive reordering mode may be signaled by the encoder to the decoder as part of the modified FRUC derivation process.

8. 发明公开

EP2961180A1 Content creation method, content registration method, devices and corresponding programs 审中-公开
标题翻译： Inhaltserzeugungsverfahren，Inhaltsregistrierungsverfahren，Vorrichtungen und entsprechende Program
公开(公告)号：EP2961180A1
公开(公告)日：2015-12-30
申请号：EP14305974.9
申请日：2014-06-23
申请人： Thomson Licensing
发明人： Chupeau, Bertrand , Robert, Antoine , Lefebvre, Frédéric
IPC分类号： H04N21/4627 , H04N21/83 , G06F17/30
CPC分类号： H04N21/8358 , G06F17/30784 , G06T1/0042 , H04N21/83 , H04N21/8352
摘要： The invention relates to a method for creating one distribution content (DC) from one original master content (OMC) where the method comprises first obtaining a set of fingerprint for the original master content and then creating the distribution content (DC), with saving, in a database, a set of transformation (STF) of the original master content. Then, when a copy content has to be registered, the invention proposes a method for registering the content to the distribution content where a distortion model is obtained by comparing the set of fingerprint of the original master content with a set of fingerprint of the copy content. The set of transformation (STF) is then combined with the distortion model (DTM) for registering the copy content.
摘要翻译：本发明涉及一种用于从一个原始主内容（OMC）创建一个分发内容（DC）的方法，其中该方法包括首先获得用于原始主内容的一组指纹，然后创建分发内容（DC）在数据库中，一组转换（STF）的原始主内容。然后，当必须注册复制内容时，本发明提出了一种通过将原始主内容的指纹集与复制内容的一组指纹进行比较而将内容注册到分发内容的方法，其中获得失真模型。然后将变换集合（STF）与用于注册复制内容的失真模型（DTM）组合。

9. 发明公开

EP2605536A1 Device for generating watermark metadata, associated device for embedding watermark 审中-公开
标题翻译：一种用于生成嵌入水印的水印元数据相关联装置设备
公开(公告)号：EP2605536A1
公开(公告)日：2013-06-19
申请号：EP11306649.2
申请日：2011-12-13
申请人： Thomson Licensing
发明人： Doerr, Gwenael , Robert, Antoine
IPC分类号： H04N21/8358 , H04N21/235 , H04N21/2389 , H04N21/2383
CPC分类号： G06T1/0021 , H04N21/235 , H04N21/2383 , H04N21/23892 , H04N21/8358
摘要： The invention relates to a device for generating metadata associated with a content intended to be watermarked with an identifier comprised in a watermark embedder, wherein the identifier is unknown from the device. The device comprises means for generating metadata comprising (i) instructions for deriving payload bits from said identifier, (ii) instructions for embedding each payload bit in said content; and means for transmitting metadata to a watermark embedder, wherein metadata dynamically drive the watermark embedder.
摘要翻译：本发明涉及一种用于产生具有用于与在一个水印嵌入器包括标识符向待加水印，内容关联的元数据的装置worin所述标识符是从所述设备是未知的。该装置包括用于产生元数据包括（i）的指令，用于从所述识别符导出有效负载位，（ii）用于在有效载荷中嵌入每个比特指示所述内容; 以及用于发送元数据，以一个水印嵌入器，元数据worin动态驱动的水印嵌入器。

10. 发明公开

EP2544142A1 Method for watermark detection using reference blocks comparison 审中-公开
标题翻译： Verfahren zur Wasserzeichendetektion mithilfe des Vergleichs vonReferenzblöcken
公开(公告)号：EP2544142A1
公开(公告)日：2013-01-09
申请号：EP11305881.2
申请日：2011-07-08
申请人： Thomson Licensing
发明人： Baudry, Severine , Robert, Antoine , Lefebvre, Frederic
IPC分类号： G06T1/00 , H04N7/26
CPC分类号： G06T1/005 , G06T2201/0051 , G06T2201/0053 , G06T2201/0061 , G06T2201/0065 , G06T2201/0083
摘要： The invention relates to a method for decoding a watermark embedded in a video comprising blocks of samples representative of the video comprising the steps of determining in the video a location of a watermarked block; determining a location for each reference block among a plurality of reference blocks wherein a reference block is associated to a watermark value among a plurality of watermark values; comparing the watermarked block with each reference block; and identifying watermark value for the watermarked block from the results of the plurality of comparison. The method is remarkable in that each reference block is equally located in the video, for instance the pirated video, so that the plurality of comparisons between the watermarked block and each reference block is performed among the same video.
摘要翻译：本发明涉及一种用于对嵌入视频中的水印进行解码的方法，该方法包括表示视频的样本块，包括以下步骤：在视频中确定水印块的位置; 确定多个参考块中的每个参考块的位置，其中参考块与多个水印值中的水印值相关联; 将水印块与每个参考块进行比较; 以及从多个比较的结果中识别水印块的水印值。该方法是显着的，因为每个参考块同样位于视频中，例如盗版视频，使得在相同视频之间执行加水印块和每个参考块之间的多个比较。

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