Forensic marking using a common customization function
    71.
    发明授权
    Forensic marking using a common customization function 有权
    使用通用定制功能的取证标记

    公开(公告)号:US08020004B2

    公开(公告)日:2011-09-13

    申请号:US11479958

    申请日:2006-06-30

    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。

    METHOD FOR PROTECTING DIGITAL CONTENT AGAINST MINORITY COLLUSION ATTACKS
    72.
    发明申请
    METHOD FOR PROTECTING DIGITAL CONTENT AGAINST MINORITY COLLUSION ATTACKS 有权
    保护少数民族冲突的数字内容的方法

    公开(公告)号:US20110182466A1

    公开(公告)日:2011-07-28

    申请号:US12998185

    申请日:2008-09-26

    Abstract: A method and system of detecting colluders conducting a collusion attack including a minority-type collusion attack on a digital product includes the generation of codewords used as watermarks in the digital product. The inner code of the codewords is generated using permutations of rows in a Hadamard matrix and concatenating them together. A typical outer code of the codeword is the Reed Solomon code. An adaptive detector is able to accurately detect one of three or more colluders of a minority-type attack. Prior art schemes using an error correcting code-based watermarking mechanism with an inner code fail to detect colluders with a minority-type collusion attack which includes three colluders.

    Abstract translation: 在数字产品上进行包括少数型串谋攻击的共谋攻击检测共谋者的方法和系统包括在数字产品中生成用作水印的码字。 使用Hadamard矩阵中的行排列来生成码字的内部代码,并将它们连接在一起。 码字的典型外码是里德所罗门码。 一个自适应检测器能够准确地检测少数型攻击的三个或更多个共谋者中的一个。 使用具有内部代码的基于纠错码的水印机制的现有技术方案不能检测包含三个共谋者的少数型串谋攻击的共谋者。

    PARALLEL DISTRIBUTION AND FINGERPRINTING OF DIGITAL CONTENT
    74.
    发明申请
    PARALLEL DISTRIBUTION AND FINGERPRINTING OF DIGITAL CONTENT 审中-公开
    并行分配和指纹数字内容

    公开(公告)号:US20090276619A1

    公开(公告)日:2009-11-05

    申请号:US12494185

    申请日:2009-06-29

    CPC classification number: G06T1/005 G06T2201/0063 H04N1/32144

    Abstract: Distributing information, including the steps of watermarking the digital content, distributing the digital content using a multi-source system, and partially fingerprinting digital content at each stage of moving information from a point of origin to the viewer. “Adaptation” of the digital content to the recipient includes maintaining the digital content in encrypted form at each such intermediate device, including decrypting the digital content with a key unique to both the device and the specific movie, selecting a portion of the watermark locations into which to embed information, embedding fingerprinting information into those locations sufficient to identify the recipient, and encrypting the fingerprinted digital content with a new such key.

    Abstract translation: 分发信息,包括对数字内容进行水印处理,使用多源系统分发数字内容的步骤,以及在从起点到观众的移动信息的每个阶段部分地指纹化数字内容。 数字内容对接收者的“适应”包括在每个这样的中间设备处以加密形式维护数字内容,包括用设备和特定电影所独有的密钥对数字内容进行解密,将一部分水印位置选择为 其嵌入信息,将指纹信息嵌入到足以识别接收者的位置,以及用新的这样的密钥加密指纹数字内容。

    Parallel distribution and fingerprinting of digital content
    75.
    发明授权
    Parallel distribution and fingerprinting of digital content 失效
    数字内容的并行分布和指纹识别

    公开(公告)号:US07568105B2

    公开(公告)日:2009-07-28

    申请号:US11523758

    申请日:2006-09-18

    CPC classification number: G06T1/005 G06T2201/0063 H04N1/32144

    Abstract: Distributing information, including the steps of watermarking the digital content, distributing the digital content using a multi-source system, and partially fingerprinting digital content at each stage of moving information from a point of origin to the viewer. “Adaptation” of the digital content to the recipient includes maintaining the digital content in encrypted form at each such intermediate device, including decrypting the digital content with a key unique to both the device and the specific movie, selecting a portion of the watermark locations into which to embed information, embedding fingerprinting information into those locations sufficient to identify the recipient, and encrypting the fingerprinted digital content with a new such key.

    Abstract translation: 分发信息,包括对数字内容进行水印处理,使用多源系统分发数字内容的步骤,以及在从起点到观众的移动信息的每个阶段部分地指纹化数字内容。 数字内容对接收者的“适应”包括在每个这样的中间设备处以加密形式维护数字内容,包括用设备和特定电影所独有的密钥对数字内容进行解密,将一部分水印位置选择为 其嵌入信息,将指纹信息嵌入到足以识别接收者的位置,以及用新的这样的密钥加密指纹数字内容。

    System and Method for Tracing Tardos Fingerprint Codes
    76.
    发明申请
    System and Method for Tracing Tardos Fingerprint Codes 有权
    跟踪Tardos指纹码的系统和方法

    公开(公告)号:US20090049560A1

    公开(公告)日:2009-02-19

    申请号:US12131074

    申请日:2008-05-31

    Abstract: A system and method is provided for identifying the source of an unauthorized copy of content. The method includes embedding a unique user fingerprint code to into each of a plurality of authorized copies of content and identifying an unknown fingerprint code in an unauthorized copy of the content. Each member of the unknown fingerprint code is compared to each corresponding member in each of the user fingerprint codes. A score is assigned to each of the user fingerprint codes based on the comparison and users associated with scores exceeding a threshold are identified as a source of the unauthorized copy.

    Abstract translation: 提供了一种系统和方法,用于识别未经授权的内容副本的来源。 该方法包括将唯一用户指纹码嵌入到内容的多个授权副本中的每一个中,并且在未经授权的内容副本中识别未知指纹码。 将未知指纹码的每个成员与每个用户指纹码中的每个相应成员进行比较。 基于比较将得分分配给每个用户指纹码,并将与超过阈值的分数相关联的用户识别为未经授权复制的来源。

    Efficient Secure Forensic Watermarking
    77.
    发明申请
    Efficient Secure Forensic Watermarking 审中-公开
    有效的安全取证水印

    公开(公告)号:US20080301456A1

    公开(公告)日:2008-12-04

    申请号:US12097522

    申请日:2006-12-15

    Abstract: The invention relates to a watermark generation method for generating watermarks to be embedded in digital media, where said watermark is generated by combining at least two watermark patterns from a set of watermark patterns. The set of watermark patterns are divided into at least two subsets of watermark patterns, and the subsets are hierarchically related and the watermark patterns in said watermark are directly related watermark patterns. Directly related means that the watermark patterns are related like parent and child in a hierarchical structure e.g. a tree structure. Further, the invention relates to an apparatus adapted to generate watermarks to be embedded in media.

    Abstract translation: 本发明涉及一种水印生成方法,用于产生要嵌入在数字媒体中的水印,其中通过从一组水印图案中组合至少两个水印图案来生成所述水印。 所述水印图案集合被划分为至少两个水印图案子集,并且所述子集是分层相关的,并且所述水印中的水印图案是直接相关的水印图案。 直接相关意味着水印图案与分层结构中的父和子相关联,例如 树结构。 此外,本发明涉及适于产生要嵌入媒体的水印的装置。

    Spread spectrum modulation system and method for embedding digital information into digital or analog media
    78.
    发明授权
    Spread spectrum modulation system and method for embedding digital information into digital or analog media 有权
    扩频调制系统和数字信息嵌入数字或模拟媒体的方法

    公开(公告)号:US07382820B2

    公开(公告)日:2008-06-03

    申请号:US10865690

    申请日:2004-06-10

    Abstract: A system and method for embedding information into digital media and later detecting the embedded information using a unique spread spectrum modulation technique. In general, the present invention removes interference caused by an original signal from the detection process thereby eliminating a major source of detection error. The interference caused by the original signal is removed by using the encoder knowledge about the original signal and modulating the energy of the embedded mark to compensate for the original signal interference. The present invention also includes a novel redundant bit representation technique causes a resulting average over a large sample to tend to zero, thereby reducing the vulnerability of the present invention to malicious collusion attacks.

    Abstract translation: 一种用于将信息嵌入数字媒体并随后使用独特的扩频调制技术检测嵌入信息的系统和方法。 通常,本发明从检测处理中去除由原始信号引起的干扰,从而消除了主要的检测误差。 通过使用关于原始信号的编码器知识和调制嵌入标记的能量来补偿原始信号干扰来消除由原始信号引起的干扰。 本发明还包括一种新颖的冗余比特表示技术使得大样本上的平均结果趋于零,从而将本发明的脆弱性降低到恶意串通攻击。

    Identification information embedding apparatus and identification information analysis apparatus
    79.
    发明授权
    Identification information embedding apparatus and identification information analysis apparatus 失效
    识别信息嵌入装置和识别信息分析装置

    公开(公告)号:US07346777B2

    公开(公告)日:2008-03-18

    申请号:US10351477

    申请日:2003-01-27

    Abstract: An identification information apparatus detects first and second boundary position information representing boundary positions on a high-order bit side and a low-order bit side of codes formed of components, extracts a colluder group matching with a set of the first and second boundary position information among colluder groups including combinations of an arbitrary number of identification information which is not more than a predetermined maximum number, and detects identification information which is common to a plurality of the colluder groups.

    Abstract translation: 识别信息装置检测表示由分量形成的码的高位位和低位侧的边界位置的第一和第二边界位置信息,提取与第一和第二边界位置信息的集合相匹配的共谋者组 包括不超过预定最大数目的任意数量的识别信息的组合的共谋者组中,并检测多个共谋者组共同的识别信息。

    METHOD OF GENERATING ANTI-COLLUSION FINGERPRINT CODES USING
    80.
    发明申请
    METHOD OF GENERATING ANTI-COLLUSION FINGERPRINT CODES USING 有权
    使用抗生素指纹编码的方法

    公开(公告)号:US20080056497A1

    公开(公告)日:2008-03-06

    申请号:US11850068

    申请日:2007-09-05

    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: 本文公开了一种使用(n,a,b,...,n),n-1,...,n,n, ,0,1)GD-PBIBD。 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nxn索引矩阵的步骤2,生成n n×n个类型矩阵的步骤3,产生n < 使用nxn索引矩阵和nxn类型_矩阵,使用步骤5生成n×n×2×2矩阵, ,以及从n a> n> 2a-2 矩阵提取一个任意列的步骤6。

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