公开(公告)号：US20160364826A1

公开(公告)日：2016-12-15

申请号：US15145565

申请日：2016-05-03

Applicant: Deluxe Media Inc.

Inventor： Ruopeng Wang ,  Joel BIGLEY

IPC: G06T1/00 ,  H04N1/32 ,  H04N21/8358

CPC classification number: G06T1/0078 ,  G06T1/0071 ,  G06T2201/0051 ,  G06T2201/0063 ,  H04N1/32245 ,  H04N1/32267 ,  H04N1/32288 ,  H04N1/3232 ,  H04N21/8358

Abstract: A digital watermarking system and method are disclosed. In one respect, the disclosed digital watermarking includes generating an extracted signal by applying a watermark extractor to an original image, generating a mixed signal by mixing the first signal with a periodic watermark signal using a local weighing factor for the periodic watermark signal that attenuates a strength of the watermark signal in proportion to a pixel luminance level, and replacing the extracted signal in the original image with the mixed signal to generate a marked image, wherein the watermark signal is extractable from the marked image using the watermark extractor.

Abstract translation: 公开了一种数字水印系统和方法。 在一方面，所公开的数字水印包括通过对原始图像应用水印提取器来生成提取的信号，通过使用周期性水印信号的局部加权因子混合第一信号和周期性水印信号来产生混合信号， 水印信号的强度与像素亮度级成比例，并且用混合信号替换原始图像中的提取信号以生成标记图像，其中水印信号可使用水印提取器从标记图像中提取。

公开(公告)号：US20160239934A1

公开(公告)日：2016-08-18

申请号：US14623925

申请日：2015-02-17

Applicant: SYS-TECH SOLUTIONS, INC.

Inventor： Michael L. Soborski

IPC: G06T1/00

CPC classification number: G06T1/0042 ,  G06F21/44 ,  G06K7/10 ,  G06T1/0028 ,  G06T2201/0063 ,  G06T2201/0201

Abstract: The present disclosure is generally directed to a method and computing device for determining whether a mark is genuine. According to various embodiments, a computing device (or logic circuitry thereof) uses unintentionally-produced artifacts within a genuine mark to define an identifiable electronic signature, and extracts certain location identifiers corresponding to certain measured features of the signature in order to enhance the ease and speed with which numerous genuine signatures can be searched and compared with signatures of candidate marks.

Abstract translation: 本公开通常涉及用于确定标记是否是真实的方法和计算装置。 根据各种实施例，计算设备（或其逻辑电路）使用真实标记内的无意产生的伪影来定义可识别的电子签名，并且提取与特征的某些测量特征相对应的某些位置标识符，以便增强容易度 可以搜索许多真实签名并与候选标记的签名进行比较的速度。

公开(公告)号：US20150195421A1

公开(公告)日：2015-07-09

申请号：US14412853

申请日：2013-07-01

Applicant: Viaccess

Inventor： Laurent Clisson

IPC: H04N1/32 ,  G06T11/60 ,  G06T1/00 ,  G06F21/10

CPC classification number: H04N1/32144 ,  G06F17/2217 ,  G06F21/10 ,  G06F2221/0737 ,  G06F2221/074 ,  G06F2221/0746 ,  G06F2221/0748 ,  G06T1/0071 ,  G06T11/60 ,  G06T2201/0062 ,  G06T2201/0063 ,  G06T2201/0064 ,  H04N1/32272 ,  H04N1/32304 ,  H04N2201/3239 ,  H04N2201/327

Abstract: A method for water-marking digital books with parameters involves developing, for each parameter, a new typeface on the basis of a pre-existing typeface, by creating at least one new code/glyph pair. The method also includes developing a new coded text on the basis of the pre-existing coded text by replacing, in the pre-existing coded text, at least one code or group of codes from the pre-existing typeface. The method further includes allowing display of a character or a combination of characters from the digital book by the code or the group of codes from the new typeface allowing display of the graphically identical character or combination of characters on any screen. The code or this group of codes from the new typeface having at least the code from the new code/glyph pair, providing the new coded text and the new typeface as a water-marked digital book.

Abstract translation: 水印数字书籍的方法涉及到通过创建至少一个新的代码/字形对，为每个参数开发基于预先存在的字体的新字体。 该方法还包括在预先存在的编码文本的基础上开发新的编码文本，通过在预先存在的编码文本中替换来自预先存在的字体的至少一个代码或代码组。 该方法还包括允许通过来自新字体的代码或代码组从数字书籍显示字符或字符组合，允许在任何屏幕上显示图形相同的字符或字符组合。 来自新字体的代码或这组代码至少具有来自新代码/字形对的代码，提供新的编码文本和新的字体作为水印数字书。

公开(公告)号：US09009482B2

公开(公告)日：2015-04-14

申请号：US14038621

申请日：2013-09-26

Applicant: Verance Corporation

Inventor： Joseph M. Winograd

IPC: H04L29/06 ,  G06T1/00

CPC classification number: G06F21/16 ,  G06F2221/0737 ,  G06T1/0021 ,  G06T1/005 ,  G06T1/0085 ,  G06T2201/0063 ,  H04L9/08

Abstract: Methods, systems, and apparatus are disclosed which enable flexible insertion of forensic watermarks into a digital content signal using a common customization function. The common customization function flexibly employs a range of different marking techniques that are applicable to a wide range of forensic marking schemes. These customization functions are also applicable to pre-processing and post-processing operations that may be necessary for enhancing the security and transparency of the embedded marks, as well as improving the computational efficiency of the marking process. The common customization function supports a well-defined set of operations specific to the task of forensic mark customization that can be carried out with a modest and preferably bounded effort on a wide range of devices. This is accomplished through the use of a generic transformation technique for use as a “customization” step for producing versions of content forensically marked with any of a multiplicity of mark messages.

Abstract translation: 公开了使用公共定制功能将法医水印灵活地插入到数字内容信号中的方法，系统和装置。 通用定制功能灵活采用一系列不同的标记技术，适用于广泛的法医标记方案。 这些定制功能也适用于增强嵌入式标记的安全性和透明度所必需的预处理和后处理操作，以及提高标记过程的计算效率。 通用定制功能支持特定于法医标记定制任务的明确定义的一组操作，可以在广泛的设备上以适度且优选的限制性努力来执行。 这是通过使用通用转换技术来实现的，作为用于产生用多个标记消息中的任何一个标记的内容的版本的“定制”步骤。

公开(公告)号：US20140233730A1

公开(公告)日：2014-08-21

申请号：US14258237

申请日：2014-04-22

Applicant: Mr. Scott A. Moskowitz

Inventor： Scott A. Moskowitz

IPC: H04L9/14

CPC classification number: H04L9/14 ,  G06T1/0028 ,  G06T1/005 ,  G06T1/0057 ,  G06T1/0064 ,  G06T2201/0051 ,  G06T2201/0052 ,  G06T2201/0053 ,  G06T2201/0061 ,  G06T2201/0063 ,  G06T2201/0065 ,  G06T2201/0083 ,  H04L9/0819 ,  H04L2209/04 ,  H04L2209/043 ,  H04L2209/046 ,  H04N1/3216 ,  H04N1/32187 ,  H04N1/32309 ,  H04N2201/3233 ,  H04N2201/324

Abstract: Multiple transform utilization and applications for secure digital watermarking. In one embodiment of the present invention, digital blocks in digital information to be protected are transformed into the frequency domain using a fast Fourier transform. A plurality of frequencies and associated amplitudes are identified for each of the transformed digital blocks and a subset of the identified amplitudes is selected for each of the digital blocks using a primary mask from a key. Message information is selected from a message using a transformation table generated with a convolution mask. The chosen message information is encoded into each of the transformed digital blocks by altering the selected amplitudes based on the selected message information.

Abstract translation: 多变换利用和安全数字水印应用。 在本发明的一个实施例中，要保护的数字信息中的数字块使用快速傅立叶变换被变换到频域。 为每个变换的数字块识别多个频率和相关联的幅度，并且使用来自密钥的主掩模为每个数字块选择所识别的幅度的子集。 从使用卷积掩码生成的变换表的消息中选择消息信息。 所选择的消息信息通过基于所选择的消息信息改变所选择的幅度而被编码到每个变换的数字块中。

公开(公告)号：US08582900B2

公开(公告)日：2013-11-12

申请号：US13296976

申请日：2011-11-15

Applicant: Shohei Nakagata ,  Kensuke Kuraki ,  Jun Takahashi ,  Taizo Anan

Inventor： Shohei Nakagata ,  Kensuke Kuraki ,  Jun Takahashi ,  Taizo Anan

IPC: G06K9/36

CPC classification number: H04L9/3226 ,  G06T1/0085 ,  G06T2201/0051 ,  G06T2201/0063 ,  G10L19/018 ,  H04L2209/608 ,  H04N1/32149 ,  H04N2201/3236 ,  H04N2201/324 ,  H04N2201/3284

Abstract: An digital watermark embedding device including an interface unit configured to acquire content in a digital form and digital watermark information, the device includes, a codeword generating unit configured to generate a base codeword including a bit sequence including the digital watermark information; a shifting unit configured to generate a plurality of correcting codewords differing from one another by permutating an arrangement in the bit sequence included in the base codeword depending on a plurality of shift amounts, the plurality of shift amounts differing from one digital watermark information to another, under a predetermined permutation rule; and a watermark superimposing unit configured to embed the plurality of correcting codewords in the content.

Abstract translation: 一种数字水印嵌入装置，包括被配置为以数字形式获取内容的接口单元和数字水印信息，所述装置包括：码字生成单元，被配置为生成包括包含所述数字水印信息的比特序列的基本码字; 移位单元，被配置为通过根据多个移位量排列包括在基本码字中的比特序列中的布置来生成彼此不同的多个校正码字，所述多个移位量与一个数字水印信息不同， 在预定的排列规则下; 以及水印叠加单元，被配置为将所述多个校正码字嵌入在所述内容中。

公开(公告)号：US08135168B2

公开(公告)日：2012-03-13

申请号：US12521083

申请日：2008-01-13

Applicant: Zeev Geyzel ,  Leonid Dorrendorf

Inventor： Zeev Geyzel ,  Leonid Dorrendorf

IPC: G06K9/00

CPC classification number: G06T1/005 ,  G06T2201/0051 ,  G06T2201/0063 ,  G06T2201/0065 ,  G06T2201/0081

Abstract: A method and system for embedding data in video frames is described, the method comprising receiving marking information, representing the marking information as a 2-coordinate vector, denoted ω, where the 2-coordinates are denoted, respectively, α, β, such that ω=(α, β), providing a video frame to be marked, the video frame including a plurality of pixels, each pixel of the plurality of pixels being represented as p, where p=(x, y), x and y including coordinates of pixel p, the plurality of pixels being represented as a triad of color elements, denoted, respectively, as R, G, and B, and marking the video frame by transforming each pixel among the plurality of pixels as follows R′(p)=R(p)+R>, G′(p)=G(p)+G>, and B′(p)=B(p)+B>, where R> represents a dot product operation on p and ωR, G> represents a dot product operation on p and ωG, and B> represents a dot product operation on p and ωB.

Abstract translation: 描述了一种用于在视频帧中嵌入数据的方法和系统，所述方法包括接收表示标记信息的标记信息，所述标记信息表示为表示为ω的2坐标矢量，其中分别表示2坐标，α， 提供要被标记的视频帧，所述视频帧包括多个像素，所述多个像素中的每个像素表示为p，其中p =（x，y），x和 y包括像素p的坐标，多个像素被表示为色彩元素的三元组，分别表示为R，G和B，并且通过变换多个像素中的每个像素来标记视频帧如下R' （p）= R（p）+ R>，G'（p）= G（p）+ G>和B'（p）= B（p）+ B>，其中R> p和ωR，G>表示对p和ωG的点乘积运算，B>表示对p和ωB的点乘积运算。

公开(公告)号：US07953975B2

公开(公告)日：2011-05-31

申请号：US11850068

申请日：2007-09-05

Applicant: Heung Kyu Lee ,  In Koo Kang ,  Sung Hyuk Park ,  Eun Mee Lee

Inventor： Heung Kyu Lee ,  In Koo Kang ,  Sung Hyuk Park ,  Eun Mee Lee

IPC: H04L9/32

CPC classification number: G06T1/005 ,  G06F21/10 ,  G06F2221/0737 ,  G06T1/0028 ,  G06T2201/0063

Abstract: Disclosed herein is a method of generating anti-collusion fingerprint codes using a (na, n2a−2, na−1, n, 0, 1) GD-PBIBD. The fingerprint codes are generated using computer equipment that executes a program for executing a program for generating the fingerprint codes. The method includes step 1 of receiving an arbitrary prime number n and an arbitrary integer a larger than 3, step 2 of generating an n×n index matrix, step 3 of generating n n×n type_i matrixes, step 4 of generating an n2×n2 matrix using the n×n index matrix and the n×n type_i matrixes, step 5 of generating an na×n2a−2 matrix, and step 6 of extracting one arbitrary column from the na×n2a−2 matrix.

Abstract translation: 本文公开了使用（na，n2a-2，na-1，n，0,1）GD-PBIBD产生反串联指纹码的方法。 使用执行用于执行用于生成指纹码的程序的程序的计算机设备来生成指纹码。 该方法包括：步骤1，接收任意素数n和大于3的任意整数，生成n×n索引矩阵的步骤2，产生nn×n个类型矩阵的步骤3，生成n2×n2的步骤4 使用n×n索引矩阵和n×n type_i矩阵的矩阵，生成na×n2a-2矩阵的步骤5，以及从na×n2a-2矩阵提取一个任意列的步骤6。

公开(公告)号：US07817817B2

公开(公告)日：2010-10-19

申请号：US11221727

申请日：2005-09-09

Applicant: Min Wu ,  Hongmei Gou

Inventor： Min Wu ,  Hongmei Gou

IPC: G06K9/00

CPC classification number: G06T1/005 ,  G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0063 ,  G06T2201/0065

Abstract: A method of concealing data in images imperceptibly alters curves therein, such as through adding a value representing the data to be hidden to each of a number of B-spline control points representing the original curve. The altered control points characterize the imperceptibly altered curve, which replaces the original curve in the image. The altered control points may be later extracted from the image and compared with the original control points to determine the hidden value. Prudent selection of the values altering the control points as well as an iterative alignment-minimization algorithm in the detection process provides protection against numerous techniques for preventing the hidden values from being recovered.

Abstract translation: 隐藏图像中的数据的方法不可察觉地改变其中的曲线，例如通过向表示原始曲线的多个B样条控制点中的每一个添加表示要隐藏的数据的值。 改变的控制点表征了不可察觉地改变的曲线，这取代了图像中的原始曲线。 可以稍后从图像中提取改变的控制点，并与原始控制点进行比较以确定隐藏值。 改变控制点的值的谨慎选择以及检测过程中的迭代对齐最小化算法提供了针对许多防止隐藏值被恢复的技术的保护。

公开(公告)号：US07613320B2

公开(公告)日：2009-11-03

申请号：US12246234

申请日：2008-10-06

Applicant: Hirofumi Muratani

Inventor： Hirofumi Muratani

IPC: G06K9/00

CPC classification number: H04H20/31 ,  G06T1/005 ,  G06T1/0071 ,  G06T2201/0063 ,  H04N1/32149 ,  H04N7/1675 ,  H04N21/8358 ,  H04N2201/3205 ,  H04N2201/3236

Abstract: A digital watermark embedding apparatus comprises below units. A first generation unit generates a plurality of symbol sequences each of which includes a plurality of symbols including ranks, each of the ranks being uniquely numbered among each of the symbol sequences, each of the symbol sequences uniquely corresponding to each of a plurality of identification information items to be embedded as digital watermark information into each of copies of digital contents. A second generation generates a plurality of to-be-embedded codes corresponding to each of the symbols in each of the symbol sequences. An embedding unit embeds the to-be-embedded codes in each of the copies.

Abstract translation: 数字水印嵌入装置包括下面的单元。 第一代单元产生多个符号序列，每个符号序列包括多个符号，包括等级，每个符号序列中的每一个都是唯一编号的，每个符号序列唯一地对应于多个识别信息 要作为数字水印信息嵌入数字内容的每个副本的项目。 第二代产生对应于每个符号序列中的每个符号的多个待嵌入代码。 嵌入单元将每个副本中的嵌入代码嵌入。