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。

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.

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。

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。

公开(公告)号：US20090217052A1

公开(公告)日：2009-08-27

申请号：US11989150

申请日：2006-07-21

申请人： Severine Baudry ,  Philippe Nguyen

发明人： Severine Baudry ,  Philippe Nguyen

IPC分类号： H04L9/00 ,  G06F21/24

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 这个信号是给定时间参考中的未知相移phi，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; 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估计相移phi; 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和估计的相位移位phi确定相关联的时间戳h。

公开(公告)号：US20090175335A1

公开(公告)日：2009-07-09

申请号：US12226585

申请日：2007-04-23

申请人： Severine Baudry ,  Philippe Nguyen ,  Noemie Lechable

发明人： Severine Baudry ,  Philippe Nguyen ,  Noemie Lechable

IPC分类号： H04N7/12

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。

公开(公告)号：US20090123020A1

公开(公告)日：2009-05-14

申请号：US11663796

申请日：2005-10-07

申请人： Severine BAUDRY ,  Philippe NGUYEN

发明人： Severine BAUDRY ,  Philippe NGUYEN

IPC分类号： G06K9/00

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，其中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。

公开(公告)号：US20080118102A1

公开(公告)日：2008-05-22

申请号：US11978785

申请日：2007-10-30

申请人： Severine Baudry ,  Corinne Naturel ,  Philippe Nguyen

发明人： Severine Baudry ,  Corinne Naturel ,  Philippe Nguyen

IPC分类号： G06K9/36 ,  G06F17/30 ,  H04L27/00

CPC分类号： G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0061 ,  G06T2201/0202

摘要： The invention relates to a digital data set watermarking method including the following steps: a. Generating, from at least one part of the digital data set, a first set of M n-uplets representative of the digital data set where n and M are integers, M≧1 and n≧1, b. Determining, in a predefined batch of K n-uplets, a set of M n-uplets, called second set, closest in the sense of predefined metrics to the first set where K is an integer and K≧M, and c. Modifying at least one data item of the digital data set in such a way that the first set generated according to step a) from the modified data set is equal to the second set.

摘要翻译： 本发明涉及一种数字数据集水印方法，包括以下步骤：a。 b）从数字数据集的至少一部分生成表示数字数据集的第一组M n表示，其中n和M是整数，M> = 1且n> = 1。 在预定批次的K n-uplet中确定一组称为第二集合的M n up up，在预定义度量的意义上与第一组最接近，其中K是整数，K> = M，以及c。 以使得根据步骤a）生成的第一组与修改后的数据集相等的方式修改数字数据集的至少一个数据项。

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。

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。