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    Method of judging digital watermark information
    112.
    发明授权
    Method of judging digital watermark information 失效
    判断数字水印信息的方法

    公开(公告)号：US06959101B2

    公开(公告)日：2005-10-25

    申请号：US10733293

    申请日：2003-12-12

    Applicant: Hiroshi Yoshiura ,  Kousuke Anzai ,  Yutaka Kurosu

    Inventor： Hiroshi Yoshiura ,  Kousuke Anzai ,  Yutaka Kurosu

    IPC: G06T1/00 ,  H04N1/32 ,  G06K9/00 ,  H04L9/00

    CPC classification number: G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0061 ,  G06T2201/0202 ,  H04N1/00005 ,  H04N1/00037 ,  H04N1/32203 ,  H04N1/32208 ,  H04N21/8358 ,  H04N2201/3233 ,  H04N2201/327

    Abstract: A method and apparatus for embedding information into a target element in which information is to be embedded and a storage medium. The method and apparatus include obtaining plural sets of data values of a plurality of elements, wherein each set of data values is obtained along one direction extending through the target element, determining a strength of embedding information into the target element based on the plural sets of data values obtained, and embedding information into the target element based on the strength determined. The storage medium stores a program which enables embedding information by execution by a computer.

    Abstract translation: 一种用于将信息嵌入到要嵌入信息的目标元素和存储介质中的方法和装置。 该方法和装置包括获得多个元素的多组数据值，其中每个数据值集合沿着穿过目标元素的一个方向被获得，基于多组数据值确定将信息嵌入到目标元素中的强度 获得的数据值，以及基于确定的强度将信息嵌入到目标元素中。 存储介质存储通过计算机执行嵌入信息的程序。

    Embedding data in material
    113.
    发明申请
    Embedding data in material 失效
    将资料嵌入资料

    公开(公告)号：US20050180598A1

    公开(公告)日：2005-08-18

    申请号：US11103005

    申请日：2005-04-11

    Applicant: Jonathan Stone ,  Jason Pelly ,  Stephen Keating

    Inventor： Jonathan Stone ,  Jason Pelly ,  Stephen Keating

    IPC: G06T1/00 ,  H04N1/32 ,  H04N1/387 ,  H04N7/08 ,  H04N7/081 ,  G06K9/00

    CPC classification number: G06T1/005 ,  G06T1/0028 ,  G06T2201/0052 ,  G06T2201/0081 ,  G06T2201/0083 ,  G06T2201/0202 ,  G06T2201/0203 ,  H04N1/32154 ,  H04N1/3217 ,  H04N1/32347 ,  H04N2201/328

    Abstract: A method of embedding data in material comprises the steps of: embedding data in original material to produce data embedded material; removing the watermark from the data embedded material to produce recovered material; comparing the original and recovered material to determine the differences and locations of differences therebetween; and storing the said locations and corrections which correct the said differences. A method of removing the data embedded in the material, comprises the steps of: removing the data from the material to produce recovered material; deriving the said corrections and locations from the said store; and using the corrections to correct the recovered material at the said locations. A method of embedding data in material, preferably comprises the steps of: producing transform coefficients Ci representing a spatial frequency transform of the material, and combining the coefficients Ci with the data bits Ri to produce a modified coefficient Ci′ where Ci′=Ci+αi Ri the method further comprising determining αi for each unmodified coefficient Ci as a function F{Cn}i of a predetermined set {Cn}i of transform coefficients Cn which set excludes the coefficient Ci.

    Abstract translation: 将数据嵌入材料的方法包括以下步骤：将数据嵌入到原始材料中以产生数据嵌入材料; 从数据嵌入材料中去除水印以产生回收的材料; 比较原始和回收的材料以确定其间的差异和位置; 并存储所述位置和校正来校正所述差异。 一种去除材料中嵌入的数据的方法，包括以下步骤：从材料中去除数据以产生回收的材料; 从所述商店导出所述修正和位置; 并使用校正来校正所述位置处的回收材料。 一种将数据嵌入材料中的方法优选地包括以下步骤：产生表示材料的空间频率变换的变换系数Ci，并将系数Ci与数据位Ri组合以产生修正系数Ci'，其中< -formulae description =“In-line Formulas”end =“lead”？Ci'= Ci + alphai Ri <？in-line-formula description =“In-line Formulas”end =“tail”？>该方法还包括 将每个未修改系数Ci确定为与所设置的变换系数C n的预定集合（C n）的函数F（C n）i N i i N i N i N i N i N i N i N i N i N i N

    Electronic watermarking apparatus and method
    114.
    发明申请
    Electronic watermarking apparatus and method 审中-公开
    电子水印设备及方法

    公开(公告)号：US20050100671A1

    公开(公告)日：2005-05-12

    申请号：US10886635

    申请日：2004-07-09

    Applicant: Yoko Kawada ,  Eriko Koda ,  Akemi Nakashiro

    Inventor： Yoko Kawada ,  Eriko Koda ,  Akemi Nakashiro

    IPC: B05C11/00 ,  B05D5/00 ,  G06T1/00 ,  H04N1/387 ,  H04N7/08 ,  H04N7/081

    CPC classification number: G06T1/0085 ,  G06T1/0028 ,  G06T2201/0202

    Abstract: An information processing apparatus is used to embed electronic watermark information. An input digital motion image is displayed on a display device. Using an input device, part of the displayed digital motion image is specified as an embed area into which electronic watermark information is to be embedded. The electronic watermark information is specified by use of the input device as well. The specified embed area is followed by detecting its movement so that only the specified embed area is watermarked.

    Abstract translation: 信息处理装置用于嵌入电子水印信息。 输入数字运动图像显示在显示装置上。 使用输入设备，将所显示的数字运动图像的一部分指定为要嵌入电子水印信息的嵌入区域。 电子水印信息也通过使用输入设备来指定。 指定的嵌入区域之后是检测其移动，使得仅指定的嵌入区域被加水印。

    Digital watermarking of tonal and non-tonal components of media signals
    116.
    发明申请
    Digital watermarking of tonal and non-tonal components of media signals 有权
    媒体信号的音调和非音调分量的数字水印

    公开(公告)号：US20050025334A1

    公开(公告)日：2005-02-03

    申请号：US10869178

    申请日：2004-06-15

    Applicant: Ahmed Tewfik ,  Mitchell Swanson ,  Bin Zhu

    Inventor： Ahmed Tewfik ,  Mitchell Swanson ,  Bin Zhu

    IPC: G06T1/00 ,  G06K9/00

    CPC classification number: G06T1/0028 ,  G06T1/005 ,  G06T2201/0052 ,  G06T2201/0065 ,  G06T2201/0202 ,  G10L19/018

    Abstract: A digital watermarking method performs tonal detection on a signal (e.g., audio) to identify tonal and non-tonal components. These components are analyzed to compute appropriate weighting of a digital watermark for the tonal and non-tonal components. This tonal detection method is also used in recovering the watermark. A decoding method performs tonal detection on a watermarked signal, computes weights for tonal and non-tonal components, and recovers the embedded watermark using the weights. The same or different watermark embedding schemes may be used to embed digital watermarks in the tonal and non-tonal components. Tonal analysis is used in conjunction with frequency and temporal shaping to adapt the digital watermark to the signal in which it is embedded.

    Abstract translation: 数字水印方法对信号（例如，音频）执行色调检测以识别色调和非音调分量。 分析这些组件以计算用于色调和非音调分量的数字水印的适当加权。 这种色调检测方法也用于恢复水印。 解码方法对水印信号执行色调检测，计算色调和非色调分量的权重，并使用权重恢复嵌入的水印。 可以使用相同或不同的水印嵌入方案来将音频和非音调分量中的数字水印嵌入。 音调分析与频率和时间整形一起使用，以使数字水印适应其嵌入的信号。

    Determination of a segmentation of a digital signal for inserting watermarking signals and the associated insertion
    117.
    发明申请
    Determination of a segmentation of a digital signal for inserting watermarking signals and the associated insertion 失效
    确定用于插入水印信号和相关插入的数字信号的分段

    公开(公告)号：US20050018876A1

    公开(公告)日：2005-01-27

    申请号：US10919360

    申请日：2004-08-17

    Applicant: Eric Nguyen

    Inventor： Eric Nguyen

    IPC: G06T1/00 ,  G09C5/00 ,  H04N1/32 ,  H04N1/387 ,  H04N7/08 ,  H04N7/081 ,  G06K9/00 ,  G06K9/36

    CPC classification number: G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0052 ,  G06T2201/0061 ,  G06T2201/0065 ,  G06T2201/0202 ,  H04N1/32154 ,  H04N1/3217 ,  H04N1/32187 ,  H04N1/32277 ,  H04N2201/3233 ,  H04N2201/327

    Abstract: The invention concerns a method of determining a segmentation into distinct regions of a set of coefficients representing at least part of an image (IM) in order to insert a set of watermarking signals with a predetermined cardinal, characterised in that it includes the steps of: generating (E2) a set of acceptable segmentations, calculating (E3), for each acceptable segmentation, a probability of error on the detection of the watermarking signals inserted in said each acceptable segmentation, and selecting (E3) a segmentation in the set of acceptable segmentations, by minimising, on all the acceptable segmentations, the probability of error subject to a constraint on the cardinal of the regions of the selected segmentation, with respect to the cardinal (C) of said set of watermarking signals.

    Abstract translation: 本发明涉及一种将表示至少部分图像（IM）的一系列系数的分段确定为不同区域的方法，以便将一组具有预定基数的水印信号插入，其特征在于包括以下步骤： 生成（E2）一组可接受的分割，对于每个可接受分割，计算（E3）在所述每个可接受分割中插入的水印信号的检测上的错误概率，并且选择（E3）可接受的分组集合中的分割 通过在所有可接受的分段上，相对于所述一组水印信号的基数（C），最小化对所选择的分割的区域的基数的约束的错误概率。

    Digital watermark detecting with weighting functions
    118.
    发明授权
    Digital watermark detecting with weighting functions 有权
    具有加权函数的数字水印检测

    公开(公告)号：US06751337B2

    公开(公告)日：2004-06-15

    申请号：US10229382

    申请日：2002-08-26

    Applicant: Ahmed Tewfik ,  Mitchell D. Swanson ,  Bin Zhu

    Inventor： Ahmed Tewfik ,  Mitchell D. Swanson ,  Bin Zhu

    IPC: G06K900

    CPC classification number: G06T1/0028 ,  G06T1/005 ,  G06T2201/0052 ,  G06T2201/0065 ,  G06T2201/0202 ,  G10L19/018

    Abstract: A digital watermark detector uses weighting functions to enhance watermark detection. The weighting function applies more weight to parts of a digitally watermarked signal that are more robust to distortion. As such, the method provides for more reliable watermark detection, especially in applications where distortions, such as lossy compression or analog conversion, more accurate detection more difficult. In one version of the method, the detector projects the watermarked signal into a pseudorandom direction specified by a key, applies the weighting function, and extracts auxiliary data symbols from the projected signal by quantizing the projected signal and deriving the symbol values based on the quantization.

    Abstract translation: 数字水印检测器使用加权函数来增强水印检测。 加权函数对于对失真更加鲁棒的数字水印信号的部分应用更多的权重。 因此，该方法提供了更可靠的水印检测，特别是在诸如有损压缩或模拟转换之类的失真更准确的检测更困难的应用中。 在该方法的一个版本中，检测器将水印信号投影到由密钥指定的伪随机方向上，应用加权函数，并且通过量化投影信号并基于量化推导符号值从投影信号中提取辅助数据符号 。

    Method and arrangement for embedding a watermark in an information signal
    119.
    发明授权
    Method and arrangement for embedding a watermark in an information signal 失效
    在信息信号中嵌入水印的方法和装置

    公开(公告)号：US06707930B2

    公开(公告)日：2004-03-16

    申请号：US10003064

    申请日：2001-11-02

    Applicant: Antonius Adrianus Cornelis Maria Kalker ,  Jaap Andre Haitsma

    Inventor： Antonius Adrianus Cornelis Maria Kalker ,  Jaap Andre Haitsma

    IPC: H04K100

    CPC classification number: G06T1/0028 ,  G06T2201/0081 ,  G06T2201/0202

    Abstract: The invention relates to a method of embedding a watermark W in an information signal P, to a corresponding arrangement for embedding a watermark W in an information signal P, to an information signal with an embedded watermark, and to a storage medium 50 having stored thereon an information signal P with an embedded watermark W. The watermark is embedded in the information signal by deriving sub-patterns Wi from said watermark pattern W, wherein the energy spectrum concentration of each sub-pattern Wi has a dominent orientation. The local weight factors &lgr;(P) for said watermark sub-patterns Wi are determined based on the local energy spectrum of the information signal P in said dominent orientation. Said watermark sub-patterns Wi are locally weighted using said determined local weight factors &lgr;(P). Finally, the locally weighted watermark sub-patterns (Wi) are added to the information signal P.

    Abstract translation: 本发明涉及将信息信号P中的水印W嵌入信息信号P中嵌入水印W的对应装置的方法，以及存储在其上的存储介质50 具有嵌入水印W的信息信号P.通过从所述水印图案W导出子图案Wi，将水印嵌入在信息信号中，其中每个子图案Wi的能谱浓度具有主导取向。 基于所述主导方向上的信息信号P的局部能量谱，确定所述水印子模式Wi的局部加权因子λ（P）。 使用所述确定的局部加权因子λ（P）对所述水印子模式Wi进行局部加权。 最后，将局部加权水印子模式（Wi）加到信息信号P。

    Transforming data files into logical storage units for auxiliary data through reversible watermarks
    120.
    发明申请
    Transforming data files into logical storage units for auxiliary data through reversible watermarks 有权
    通过可逆水印将数据文件转换为辅助数据的逻辑存储单元

    公开(公告)号：US20040044894A1

    公开(公告)日：2004-03-04

    申请号：US10435612

    申请日：2003-05-08

    Inventor： Neil E. Lofgren ,  Burt W. Perry ,  John Stach

    IPC: H04L009/00

    CPC classification number: H04N1/32149 ,  G06T1/0028 ,  G06T2201/0083 ,  G06T2201/0202 ,  G06T2201/0203 ,  G10L19/018 ,  H04N1/32229 ,  H04N1/32347 ,  H04N1/32352 ,  H04N2201/3233 ,  H04N2201/327

    Abstract: A reversible watermarking program transforms a host data file into a logical storage unit for auxiliary data files by embedding the auxiliary files in the data stored in the host data file. The reversible watermark modifies host data such as an image, audio, video, or software code, to carry auxiliary data. For perceptual content such as visual or audio media, the reversible watermark can maintain a desired level of perceptual quality, effectively hiding the auxiliary data in the host data. The reversible watermark enables the original host data prior to modifications due to the embedding to be restored.

    Abstract translation: 可逆水印程序通过将辅助文件嵌入存储在主机数据文件中的数据中，将主机数据文件转换为用于辅助数据文件的逻辑存储单元。 可逆水印修改诸如图像，音频，视频或软件代码的主机数据以携带辅助数据。 对于诸如视觉或音频媒体的感知内容，可逆水印可以保持期望的感知质量水平，有效地将辅助数据隐藏在主机数据中。 由于嵌入被恢复，可逆水印在修改之前使原始主机数据成为可能。

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