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21. 发明专利

JP4027542B2 Watermarking method for digital object 有权
公开(公告)号：JP4027542B2
公开(公告)日：2007-12-26
申请号：JP27570099
申请日：1999-09-29
申请人：ヒューレット・パッカード・カンパニーHewlett−Packard Company
发明人：プアヴィ・エル・ヴォラ
IPC分类号： H04N1/387 , H04N7/08 , G06T1/00 , H04N1/32 , H04N7/081 , H04N7/26
CPC分类号： H04N19/467 , G06T1/0057 , G06T2201/0052 , H04N1/32154 , H04N1/3216 , H04N1/32165 , H04N1/3217 , H04N1/32176 , H04N1/32277
摘要： Method of embedding a watermark in a digital object. The watermark is used to perform argument modulation of a transform of the object. Watermark data is used in the argument of the transform to effectively shift around values in the transform domain.

22. 发明专利

JP3537450B2 Electronic watermark method and the watermark information extraction method 失效
公开(公告)号：JP3537450B2
公开(公告)日：2004-06-14
申请号：JP50685899
申请日：1998-06-15
申请人：興和株式会社
发明人：淳児大西 , 甲子雄松井
IPC分类号： G06T1/00 , H04N1/32 , H04N1/387
CPC分类号： H04N19/63 , G06T1/0057 , G06T2201/0052 , H04N1/32154 , H04N1/3216 , H04N1/3217 , H04N1/32176 , H04N1/32187 , H04N1/32288 , H04N21/23892 , H04N21/8358 , H04N2201/3233 , H04N2201/327

23. 发明授权

US08037311B2 Digital watermark systems and methods 有权
公开(公告)号：US08037311B2
公开(公告)日：2011-10-11
申请号：US11695523
申请日：2007-04-02
申请人： Andrew Johnson , Michael Biggar
发明人： Andrew Johnson , Michael Biggar
IPC分类号： H04L9/32
CPC分类号： G06T1/0021 , G06T1/005 , G06T2201/0051 , G06T2201/0052 , G06T2201/0061 , G06T2201/0083 , H04N1/32154 , H04N1/3216 , H04N1/32165 , H04N1/32176 , H04N1/32187 , H04N19/00 , H04N21/23892 , H04N21/8358 , H04N2201/3233 , H04N2201/327
摘要： A digital watermark is added to audio or visual content. An illustrative embodiment segments the content, permutes the segments, and transforms such data into another domain. The transformed data is altered slightly to encode a watermark. The altered data can then be inverse-transformed, and inverse-permuted, to return same to substantially its original form. Related watermark decoding methods are also detailed, as are ancillary features and techniques.

24. 发明申请

US20080130944A1 Digital Watermark Systems and Methods 有权
标题翻译：数字水印系统与方法
公开(公告)号：US20080130944A1
公开(公告)日：2008-06-05
申请号：US11877486
申请日：2007-10-23
申请人： Andrew Johnson , Michael Biggar
发明人： Andrew Johnson , Michael Biggar
IPC分类号： G06K9/00 , G10L21/00 , H04N7/26
CPC分类号： G06T1/0021 , G06T1/005 , G06T2201/0051 , G06T2201/0052 , G06T2201/0061 , G06T2201/0083 , H04N1/32154 , H04N1/3216 , H04N1/32165 , H04N1/32176 , H04N1/32187 , H04N19/00 , H04N21/23892 , H04N21/8358 , H04N2201/3233 , H04N2201/327
摘要： A digital watermark is added to audio or visual content. An illustrative embodiment permutes the content, alters the permuted content to encode a watermark, and inverse-permutes the content to return same to substantially its original form. Related watermark decoding methods are also detailed, as are ancillary features and techniques
摘要翻译：数字水印被添加到音频或视觉内容。一个说明性的实施例排列内容，改变置换的内容以对水印进行编码，并反向置换内容以基本上恢复其原始形式。相关的水印解码方法也是详细的，以及辅助特征和技术

25. 发明申请

US20070230739A1 DIGITAL WATERMARK SYSTEMS AND METHODS 有权
标题翻译：数字水印系统和方法
公开(公告)号：US20070230739A1
公开(公告)日：2007-10-04
申请号：US11695523
申请日：2007-04-02
申请人： Andrew Johnson , Michael Biggar
发明人： Andrew Johnson , Michael Biggar
IPC分类号： G06K9/00
CPC分类号： G06T1/0021 , G06T1/005 , G06T2201/0051 , G06T2201/0052 , G06T2201/0061 , G06T2201/0083 , H04N1/32154 , H04N1/3216 , H04N1/32165 , H04N1/32176 , H04N1/32187 , H04N19/00 , H04N21/23892 , H04N21/8358 , H04N2201/3233 , H04N2201/327
摘要： A digital watermark is added to audio or visual content. An illustrative embodiment segments the content, permutes the segments, and transforms such data into another domain. The transformed data is altered slightly to encode a watermark. The altered data can then be inverse-transformed, and inverse-permuted, to return same to substantially its original form. Related watermark decoding methods are also detailed, as are ancillary features and techniques
摘要翻译：数字水印被添加到音频或视觉内容。说明性实施例分割内容，置换段，并将这些数据转换成另一个域。变换的数据被稍微改变以对水印进行编码。然后可以将改变的数据进行逆变换，并进行反向置换，以使其基本上恢复原始形式。相关的水印解码方法也是详细的，以及辅助特征和技术

26. 发明授权

US06728409B2 Apparatus for and method of embedding and extracting digital information and medium having program for carrying out the method recorded thereon 失效
标题翻译：用于嵌入和提取数字信息的装置和方法以及具有用于执行记录在其上的方法的程序的介质
公开(公告)号：US06728409B2
公开(公告)日：2004-04-27
申请号：US10243676
申请日：2002-09-16
申请人： Hisashi Inoue , Takashi Katsura
发明人： Hisashi Inoue , Takashi Katsura
IPC分类号： G06K946
CPC分类号： H04N19/645 , G06T1/005 , G06T2201/0051 , G06T2201/0052 , G06T2201/0061 , G06T2201/0065 , H04N1/32154 , H04N1/3216 , H04N1/32165 , H04N1/3217 , H04N1/32176 , H04N1/32187 , H04N1/32277 , H04N2201/3233 , H04N2201/327
摘要： An apparatus for embedding information in a signal includes a band dividing device, a block divider, a quantization portion, a signal replacement portion, a mean difference addition portion, a mean calculation portion, and a band synthesis portion. The band dividing device divides the signal into transform coefficients over a plurality of frequency bands. The block divider divides one frequency band into a plurality of blocks in accordance with a previously determined block size. The quantization portion calculates for each block, a mean value M of the transform coefficients in the block, and subjects the mean value M to linear quantization, using a previously determined quantization step-size Q to calculate a quantization value. The signal replacement portion replaces the quantization value for each block, on the basis of the quantization value and the value of the information to be embedded. The mean difference addition portion subjects the replaced quantization value, for each block, to inverse linear quantization using the quantization step-size Q to calculate a mean value M′, and adds a difference DM between the mean value M′ and the mean value M to all the transform coefficients in the block. The mean calculation portion calculates a mean value LM of the transform coefficients in the frequency band after the addition of the difference DM. The band synthesis portion reconstructs a signal in which the information has been embedded using the frequency band after the addition of the difference DM and the other frequency bands.
摘要翻译：用于在信号中嵌入信息的装置包括带分割装置，块分割器，量化部分，信号替换部分，平均差加法部分，平均计算部分和频带合成部分。频带划分装置将信号划分成多个频带的变换系数。块分割器根据先前确定的块大小将一个频带划分成多个块。量化部分针对每个块计算块中的变换系数的平均值M，并使用预先确定的量化步长Q对平均值M进行线性量化，以计算量化值。信号替换部分基于量化值和要嵌入的信息的值替换每个块的量化值。平均差分加法部分使用量化步长Q对每个块对替换的量化值进行逆线性量化，以计算平均值M'，并将平均值M'和平均值M 到块中的所有变换系数。平均计算部分计算差DM之后的频带中的变换系数的平均值LM。频带合成部分在添加差分DM和其他频带之后，使用频带重建信息已被嵌入的信号。

27. 发明申请

US20020009209A1 Digital information embedding/extracting apparatus and method, and medium including a program for executing the method recorded thereon 有权
标题翻译：数字信息嵌入/提取装置和方法，以及包括用于执行记录在其上的方法的程序的介质
公开(公告)号：US20020009209A1
公开(公告)日：2002-01-24
申请号：US09879136
申请日：2001-06-13
发明人： Hisashi Inoue , Takashi Katsura
IPC分类号： G06K009/00 , G06K009/36 , G06K009/46 , G06K009/38
CPC分类号： G06T1/0028 , G06T2201/0052 , G06T2201/0061 , H04N1/32154 , H04N1/3216 , H04N1/32165 , H04N1/3217 , H04N1/32176 , H04N1/32277
摘要： In an embedding apparatus, an orthogonal transform section 11 divides an original image 1 into a plurality of blocks to perform orthogonal transform every block. An information embedding section 13 embeds a pseudo-random number sequence mapped with inherent digital information in part of a transform coefficients sequence obtained by the orthogonal transform using a weight sequence. In an extracting apparatus, a correlation value calculation section 23 reads sequences of transform coefficients for respective blocks from the data including the pseudo-random number sequence embedded therein in a predetermined order, and calculates an inner product between the sequences of transform coefficients and a pseudo-random number sequence. A pseudo-random number determination section 24 determines that the pseudo-random number sequence has been embedded when the inner product is greater than a predetermine threshold value. An information generation section 25 extracts inherent digital information mapped with the determined pseudo-random number sequence. This method discourages deciphering of the digital information by a third party, suppresses deterioration in image quality by a simple apparatus/method, and improves the rate of detection of watermark data.
摘要翻译：在嵌入装置中，正交变换部11将原始图像1分割为多个块，以对每个块进行正交变换。信息嵌入部分13将利用固有数字信息映射的伪随机数序列嵌入通过使用加权序列的正交变换获得的变换系数序列的一部分。在提取装置中，相关值计算部分23按照预定顺序从包含嵌入其中的伪随机数序列的数据读取各个块的变换系数的序列，并计算变换系数序列和伪随机数序列之间的内积随机数序列。伪随机数确定部分24确定当内积大于预定阈值时伪随机数序列已被嵌入。信息生成部分25提取用确定的伪随机数序列映射的固有数字信息。该方法不利于第三方对数字信息的解密，通过简单的装置/方法抑制图像质量的劣化，提高水印数据的检测率。

28. 发明授权

US06240121B1 Apparatus and method for watermark data insertion and apparatus and method for watermark data detection 失效
标题翻译：水印数据插入装置及方法，水印数据检测装置及方法
公开(公告)号：US06240121B1
公开(公告)日：2001-05-29
申请号：US09112388
申请日：1998-07-09
申请人： Takanori Senoh
发明人： Takanori Senoh
IPC分类号： H04N708
CPC分类号： G06T1/0028 , G06T2201/0052 , G06T2201/0083 , H04N1/32154 , H04N1/3216 , H04N1/32165 , H04N1/3217 , H04N1/32176 , H04N1/32181 , H04N1/32187 , H04N21/23892 , H04N21/8358
摘要： A watermark data insertion method for inserting watermark data into an input original signal is provided. The method includes: a frequency transform step for applying a frequency transform to the original signal to form an intermediate signal; a watermark data insertion step for inserting the watermark data into a first set of frequency component of the intermediate signal; and a frequency inverse transform step for applying an inverse frequency transform to the intermediate signal, the watermark data having been inserted into the intermediate signal, thereby obtaining a signal containing the watermark data embedded therein. The watermark data insertion step includes: determining, based on pseudo random numbers, the first set of frequency components of the intermediate signal into which the watermark data is inserted; and using a second set of frequency components of the intermediate signal as a reference signal, the watermark data not being inserted into the second set of frequency components.
摘要翻译：提供了一种用于将水印数据插入到输入原始信号中的水印数据插入方法。该方法包括：频率变换步骤，用于对原始信号施加频率变换以形成中间信号; 水印数据插入步骤，用于将水印数据插入到中间信号的第一组频率分量中; 以及频率逆变换步骤，用于对中间信号应用逆频变换，将水印数据插入到中间信号中，从而获得包含嵌入其中的水印数据的信号。水印数据插入步骤包括：基于伪随机数确定插入水印数据的中间信号的第一组频率分量; 并且使用所述中间信号的第二组频率分量作为参考信号，所述水印数据不被插入到所述第二组频率分量中。

29. 发明授权

US07987370B2 Digital watermark systems and methods 有权
标题翻译：数字水印系统和方法
公开(公告)号：US07987370B2
公开(公告)日：2011-07-26
申请号：US11940017
申请日：2007-11-14
申请人： Andrew Johnson , Michael Biggar
发明人： Andrew Johnson , Michael Biggar
IPC分类号： G06F7/04 , G06F17/30 , H04N7/16 , H04N7/167 , H04L9/32 , B41K3/38 , G06K9/36
CPC分类号： G06T1/0021 , G06T1/005 , G06T2201/0051 , G06T2201/0052 , G06T2201/0061 , G06T2201/0083 , H04N1/32154 , H04N1/3216 , H04N1/32165 , H04N1/32176 , H04N1/32187 , H04N19/00 , H04N21/23892 , H04N21/8358 , H04N2201/3233 , H04N2201/327
摘要： A digital watermark is added to audio or visual content. An illustrative embodiment segments the content, permutes the segments, and transforms such data into another domain. The transformed data is altered slightly to encode a watermark. The altered data can then be inverse-transformed, and inverse-permuted, to return same to substantially its original form. Related watermark decoding methods are also detailed, as are ancillary features and techniques.
摘要翻译：数字水印被添加到音频或视觉内容。说明性实施例分割内容，排列片段，并将这些数据转换成另一个域。变换的数据被稍微改变以对水印进行编码。然后可以将改变的数据进行逆变换，并进行反向置换，以使其基本上恢复原始形式。相关的水印解码方法也是详细的，以及辅助特征和技术。

30. 发明申请

US20070014428A1 Method and system for digital watermarking of multimedia signals 失效
标题翻译：多媒体信号数字水印方法与系统
公开(公告)号：US20070014428A1
公开(公告)日：2007-01-18
申请号：US11180334
申请日：2005-07-12
申请人： Roumen Kountchev , Vladimir Todorov , Roumiana Kountcheva , Mariofanna Milanova , Charles Ford
发明人： Roumen Kountchev , Vladimir Todorov , Roumiana Kountcheva , Mariofanna Milanova , Charles Ford
IPC分类号： G06K9/00
CPC分类号： G06T1/0028 , G06T1/0071 , G06T2201/0052 , G06T2201/0083 , G06T2201/0202 , H04N1/32176 , H04N1/32187 , H04N2201/3233 , H04N2201/327
摘要： Disclosed is a method and system for digital watermarking of multimedia signals. The input multimedia signal is represented using an inverse difference pyramid decomposition. Spectrum coefficients may be calculated for each level of the pyramid using a new kind of complex Hadamard transform, the matrix of which is distinguished from the known ones by the fact that only one-fourth of its coefficients are complex numbers. The phases of a previously selected part of the low-frequency coefficients are modified with the watermark data, limiting the angles of the phase changes in a gap of several degrees only. After an inverse complex Hadamard Transform, the values of the coefficients from all pyramid levels are summed up and the result is the watermarked signal. The watermark can contain multiple independent levels for each level of the pyramid.
摘要翻译：公开了一种用于多媒体信号的数字水印技术的方法和系统。输入多媒体信号使用逆差分金字塔分解来表示。可以使用新型复杂Hadamard变换来计算每个级别的金字塔的频谱系数，其中该矩阵的矩阵通过仅有四分之一的系数是复数的事实与已知的相似。先前选择的部分低频系数的相位用水印数据进行修改，仅限于几度的间隙中的相位变化的角度。在逆复合Hadamard变换之后，将来自所有金字塔级的系数的值相加，并且结果是加水印的信号。水印可以包含金字塔各级的多个独立级别。

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