专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08209539B2 Method for time-stamped watermarking, method and device for time stamp decoding use 有权
标题翻译：时间戳水印方法，时间戳解码使用的方法和装置
公开(公告)号：US08209539B2
公开(公告)日：2012-06-26
申请号：US11989150
申请日：2006-07-21
申请人： Séverine Baudry , Philippe Nguyen
发明人： Séverine Baudry , Philippe Nguyen
IPC分类号： H04L9/32
CPC分类号： G06T1/0085
摘要： The invention relates to a method for watermarking at least one timestamp in a set of support data, comprising the following steps for each timestamp: association with the timestamp of the value at a given time of a reference timestamp signal, that is a determinist signal varying over time in a given temporal reference and being written as s(t), wherein t is incremented according to an incrementing step equal to one predetermined time unit; and watermarking of the value in the set of support data. The invention also relates to a corresponding decoding method comprising the following steps: reading, in the set of support data, of at least one value of a phase-shifted timestamp signal, of the same form as the reference timestamp signal but having in relation to this signal an unknown phase shift φ in a given temporal reference, the previous watermarking of each timestamp consisting in a watermarking of the value at a given watermarking time of the reference timestamp signal; estimation of the phase shift φ from the at least one read value of the phase-shifted timestamp signal and from the knowledge of the reference timestamp signal; and for the at least one read value, read at a given time tr, determination of an associated timestamp h associated according to the read time tr and the estimated phase shift φ.
摘要翻译：本发明涉及一种用于在一组支持数据中对至少一个时间戳进行加水印的方法，包括针对每个时间戳的以下步骤：与参考时间戳信号的给定时间的值的时间戳相关联，即确定性信号变化在给定的时间参考中随时间推移并被写为s（t），其中t根据等于一个预定时间单位的递增步长递增; 并在该组支持数据中对该值进行水印处理。本发明还涉及一种对应的解码方法，包括以下步骤：在支持数据集中读取与基准时间戳信号相同形式的相移时间戳信号的至少一个值，但与这个信号是一个未知的相移在给定的时间参考中，每个时间戳的先前水印包括在参考时间戳信号的给定水印时间处的值的水印; 相移估计从相移时间戳信号的至少一个读取值和参考时间戳信号的知识中获取; 并且对于至少一个读取值，在给定时间tr读取，根据读取时间tr和估计的相移＆phgr相关联的关联时间戳h的确定。

2. 发明授权

US08064635B2 Method for watermarking a digital data set and device implementing said method 有权
标题翻译：用于对数字数据集进行水印处理的方法和实现所述方法的装置
公开(公告)号：US08064635B2
公开(公告)日：2011-11-22
申请号：US12086573
申请日：2006-12-11
申请人： Séverine Baudry , Corinne Naturel , Philippe Nguyen
发明人： Séverine Baudry , Corinne Naturel , Philippe Nguyen
IPC分类号： G06K9/00 , H04N11/02
CPC分类号： H04N17/004 , G06T1/0028 , G06T2201/0052 , G06T2201/0202 , H04N21/23892 , H04N21/44008 , H04N21/8358
摘要： The invention relates to a method of watermarking a data set comprising the steps of: selecting, in the data set, at least one group of two data; and modifying at least one data of the group. The data is modified such that the difference between the modified data and the other data of the group possibly modified equals a predefined watermarking parameter multiplied by an integer number, called rejection class, associated with the group and equal to the integer nearest to the ratio between the difference between the at least one data and the other data of the group before the modification divided by the watermarking parameter.
摘要翻译：本发明涉及一种对数据集进行水印处理的方法，包括以下步骤：在数据集中选择至少一组两个数据; 以及修改该组的至少一个数据。修改数据使得修改的数据与可能修改的组的其他数据之间的差异等于预定义的水印参数乘以与组相关联的称为拒绝类的整数，并且等于最接近于所述修改之前的所述组的所述至少一个数据与所述其他数据之间的差除以所述水印参数。

3. 发明申请

US20090208131A1 Method and Device for Watermarking on Stream 审中-公开
标题翻译：流上水印的方法和装置
公开(公告)号：US20090208131A1
公开(公告)日：2009-08-20
申请号：US12086373
申请日：2006-12-07
申请人： Philippe Nguyen , Séverine Baudry , Corinne Naturel
发明人： Philippe Nguyen , Séverine Baudry , Corinne Naturel
IPC分类号： G06K9/36
CPC分类号： G06T1/0057 , G06T2201/0052 , G06T2201/0065
摘要： The invention relates in particular to a stream-wise method of watermarking independent of the compression parameters used (for example type of the transform) so as to allow the reading of the watermarking inserted independently of the format of the data received. The watermarking method according to the invention consists in generating a contribution matrix in the transformation space, in projecting it into another domain and in watermarking the data in this domain on the basis of the projected matrix so as to allow a watermark reader operating in the transformed transformation space to read back the inserted watermarking in the transformation space. The contribution matrix representing the modifications induced on the coefficients in the transformation space by insertion of the watermarking cue in this same domain.
摘要翻译：本发明特别涉及独立于所使用的压缩参数（例如变换的类型）的水印的流式方法，以允许独立于所接收的数据格式插入的水印的读取。根据本发明的水印方法包括在变换空间中生成贡献矩阵，将其投影到另一个域中，并且基于投影矩阵对该域中的数据进行水印处理，以便允许水印读取器在经变换的转换空间来读取插入的水印在变换空间中。表示通过在同一域中插入水印提示而导致的对变换空间中的系数的修改的贡献矩阵。

4. 发明授权

US08228987B2 Digital watermarking method 有权
公开(公告)号：US08228987B2
公开(公告)日：2012-07-24
申请号：US12226585
申请日：2007-04-23
申请人： Séverine Baudry , Philippe Nguyen , Noémie Lechable
发明人： Séverine Baudry , Philippe Nguyen , Noémie Lechable
IPC分类号： H04N7/12 , H04N9/80
摘要： The invention relates to a method of watermarking a binary stream resulting from the encoding of a set of coefficients comprising at least one coefficient encoded by predictive coding, called predictively coded coefficient. The method comprises the steps of: a) identifying, in the binary stream, a first binary word representing the predictively coded coefficient; b) computing a modified coefficient from the predictively coded coefficient on the basis of at least one watermarking bit; c) encoding the modified coefficient into a second binary word; and d) replacing in the binary stream the first binary word with the second binary word.

5. 发明授权

US07804978B2 Method and device for reading digital watermark, computer software package and corresponding storage means 有权
标题翻译：读取数字水印的方法和设备，计算机软件包和相应的存储手段
公开(公告)号：US07804978B2
公开(公告)日：2010-09-28
申请号：US11663796
申请日：2005-10-07
申请人： Séverine Baudry , Philippe Nguyen
发明人： Séverine Baudry , Philippe Nguyen
IPC分类号： G06K9/00 , H04L9/32
CPC分类号： G06T1/005 , G06T2201/0065
摘要： The invention relates to a method of reading a watermark, of the type comprising a step of determining at least one watermarking message contained in a data set, possibly preceded by a step of determining at least one suite of parameters of a watermarking channel undergone by the data set, each suite of channel parameters comprising at least one channel parameter. The step of determining at least one watermarking message and/or the prior step of determining at least one suite of channel parameters comprises (comprise): an estimation phase, consisting in processing at least one batch of data comprising data of the data set, so as to obtain N estimated element(s), with N≧0; and a verification phase, consisting in validating or invalidating, in view of the entirety or of at least a subset of the data set, each estimated element. In the foregoing, each estimated element is an estimated watermarking message, in the case of the step of determining at least one watermarking message, and a suite of estimated-channel parameters, in the case of the prior step of determining at least one suite of channel parameters.
摘要翻译：本发明涉及一种读取水印的方法，该方法包括以下步骤：确定包含在数据集中的至少一个水印消息的步骤，可能之前是确定水印信道所经历的水印信道的至少一组参数的步骤数据集，每组通道参数包括至少一个通道参数。确定至少一个水印消息和/或确定至少一组信道参数的先前步骤的步骤包括（包括）：估计阶段，包括处理包括数据集的数据的至少一批数据，因此获得N个估计元素，N≥0; 以及验证阶段，其包括鉴于全部或至少一个数据集的子集，验证或无效，每个估计的元素。在上文中，每个估计元素是估计水印消息，在确定至少一个水印消息的步骤的情况下，以及一组估计信道参数，在先前步骤的情况下，确定至少一个通道参数。

6. 发明授权

US08270485B2 Digital watermarking method 有权
标题翻译：数字水印方法
公开(公告)号：US08270485B2
公开(公告)日：2012-09-18
申请号：US12226585
申请日：2007-04-23
申请人： Séverine Baudry , Philippe Nguyen , Noémie Lechable
发明人： Séverine Baudry , Philippe Nguyen , Noémie Lechable
IPC分类号： H04N7/12 , H04N9/80
CPC分类号： G06T1/0035 , G06T2201/0052 , G06T2201/0053
摘要： The invention relates to a method of watermarking a binary stream resulting from the encoding of a set of coefficients comprising at least one coefficient encoded by predictive coding, called predictively coded coefficient. The method comprises the steps of: a) identifying, in the binary stream, a first binary word representing the predictively coded coefficient; b) computing a modified coefficient from the predictively coded coefficient on the basis of at least one watermarking bit; c) encoding the modified coefficient into a second binary word; and d) replacing in the binary stream the first binary word with the second binary word.
摘要翻译：本发明涉及一种对包含由预测编码编码的至少一个系数的系数集合的编码产生的二进制流进行水印的方法，称为预测编码系数。该方法包括以下步骤：a）在二进制流中识别表示预测编码系数的第一二进制字; b）基于至少一个水印位从所述预测编码系数计算修正系数; c）将修改的系数编码为第二二进制字; 和d）用二进制流替换第二个二进制字与第二个二进制字。

7. 发明授权

US07085398B2 Method and system to decode image watermarks 有权
标题翻译：解码图像水印的方法和系统
公开(公告)号：US07085398B2
公开(公告)日：2006-08-01
申请号：US10338038
申请日：2003-01-08
申请人： Séverine Baudry , Philippe N'guyen
发明人： Séverine Baudry , Philippe N'guyen
IPC分类号： G06K9/00
CPC分类号： G06T1/0064 , H04N1/32144 , H04N1/32352
摘要： In a device and a method for the determining local geometrical variations that have occurred in data, the data comprise a reference pattern X. The method comprises, for example, the following steps: modeling the local geometrical variations by means of an index variable J, said variable making it possible to place the samples of the distorted data in correspondence with those of the original data, estimating the local variations by using the reference pattern X included, a model of local distortion of the data and the distorted data.
摘要翻译：在用于确定在数据中发生的局部几何变化的装置和方法中，数据包括参考图案X.该方法包括例如以下步骤：通过索引变量J对局部几何变化进行建模，所述变量使得可以将失真数据的样本与原始数据的样本相对应，通过使用包括的参考图案X估计局部变化，数据的局部失真模型和失真数据。

8. 发明授权

US09473829B2 Methods and devices for selective format-preserving data encryption 有权
标题翻译：用于选择性格式保存数据加密的方法和设备
公开(公告)号：US09473829B2
公开(公告)日：2016-10-18
申请号：US13611837
申请日：2012-09-12
申请人： Frédéric Lefebvre , Séverine Baudry , Antoine Robert , Philippe Roudot
发明人： Frédéric Lefebvre , Séverine Baudry , Antoine Robert , Philippe Roudot
IPC分类号： H04N7/167 , H04N21/845 , H04N21/2389 , H04N21/2362 , H04N21/434 , H04N21/4385
CPC分类号： H04N21/845 , H04N21/2362 , H04N21/2389 , H04N21/23895 , H04N21/4345 , H04N21/4385 , H04N21/43853
摘要： Selective data encryption of a file, in particular an H.264/MPEG-4 AVC data stream. If a first unit in the data stream is to be encrypted, it is encrypted and the encryption is put into a further unit, preferably in the data stream. A substitution unit is generated and put in the place of the first unit; if necessary, at least one header value is taken from the first unit for use in the substitution unit. A decryptor receives the encrypted data stream, extracts and decrypts the further unit and replaces the substitution unit with a regenerated first unit.
摘要翻译：文件的选择性数据加密，特别是H.264 / MPEG-4AVC数据流。如果要对数据流中的第一单元进行加密，则将其加密，并将加密放入另一个单元中，最好在数据流中。生成替代单元并置于第一单元的位置; 如果需要，从用于替代单元的第一单元获取至少一个标题值。解密器接收加密的数据流，提取并解密另外的单元，并用再生的第一单元替换替换单元。

9. 发明申请

US20130064368A1 METHODS AND DEVICES FOR SELECTIVE FORMAT-PRESERVING DATA ENCRYPTION 有权
标题翻译：选择性格式保存数据加密的方法和设备
公开(公告)号：US20130064368A1
公开(公告)日：2013-03-14
申请号：US13611837
申请日：2012-09-12
申请人： Frédéric Lefebvre , Séverine Baudry , Antoine Robert , Philippe Roudot
发明人： Frédéric Lefebvre , Séverine Baudry , Antoine Robert , Philippe Roudot
IPC分类号： H04N7/167
CPC分类号： H04N21/845 , H04N21/2362 , H04N21/2389 , H04N21/23895 , H04N21/4345 , H04N21/4385 , H04N21/43853
摘要： Selective data encryption of a file, in particular an H.264/MPEG-4 AVC data stream. If a first unit in the data stream is to be encrypted, it is encrypted and the encryption is put into a further unit, preferably in the data stream. A substitution unit is generated and put in the place of the first unit; if necessary, at least one header value is taken from the first unit for use in the substitution unit. A decryptor receives the encrypted data stream, extracts and decrypts the further unit and replaces the substitution unit with a regenerated first unit.
摘要翻译：文件的选择性数据加密，特别是H.264 / MPEG-4AVC数据流。如果要对数据流中的第一单元进行加密，则将其加密，并将加密放入另一个单元中，最好在数据流中。生成替代单元并置于第一单元的位置; 如果需要，从用于替代单元的第一单元获取至少一个标题值。解密器接收加密的数据流，提取并解密另外的单元，并用再生的第一单元替换替换单元。

10. 发明申请

US20100166251A1 Method for Watermarking a Digital Data Set and Device Implementing Said Method 有权
标题翻译：数字数据集的水印方法和实施所述方法的装置
公开(公告)号：US20100166251A1
公开(公告)日：2010-07-01
申请号：US12086573
申请日：2006-12-11
申请人： Séverine Baudry , Corinne Naturel , Philippe Nguyen
发明人： Séverine Baudry , Corinne Naturel , Philippe Nguyen
IPC分类号： G06K9/00
CPC分类号： H04N17/004 , G06T1/0028 , G06T2201/0052 , G06T2201/0202 , H04N21/23892 , H04N21/44008 , H04N21/8358
摘要： The invention relates to a method of watermarking a data set comprising the steps of: selecting, in the data set, at least one group of two data; and modifying at least one data of the group. The data is modified such that the difference between the modified data and the other data of the group possibly modified equals a predefined watermarking parameter multiplied by an integer number, called rejection class, associated with the group and equal to the integer nearest to the ratio between the difference between the at least one data and the other data of the group before the modification divided by the watermarking parameter.
摘要翻译：本发明涉及一种对数据集进行水印处理的方法，包括以下步骤：在数据集中选择至少一组两个数据; 以及修改该组的至少一个数据。修改数据使得修改的数据与可能修改的组的其他数据之间的差异等于预定义的水印参数乘以与组相关联的称为拒绝类的整数，并且等于最接近于所述修改之前的所述组的所述至少一个数据与所述其他数据之间的差除以所述水印参数。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式