Watermark holograms
    3.
    发明授权
    Watermark holograms 有权
    水印全息图

    公开(公告)号:US06782115B2

    公开(公告)日:2004-08-24

    申请号:US10282908

    申请日:2002-10-28

    IPC分类号: G06K900

    摘要: Methods for integrating digital watermarks into holograms, watermarked hologram structures, and related applications. One method creates a watermark image, and then embeds the watermark image into a holographic structure. The holographic structure is created using computer generated holography to create a digital representation of the holographic structure. This digital representation is recorded on a physical substrate using optical techniques or microlithography. As an alterative, a watermark signal is embedded in a physical holographic structure by embedding the signal into an image that is optically merged with the holographic structure as it is optically recorded, or by embedding the signal into an image or physical model from which the holographic structure is formed. Another approach the creates a halftone watermarked image, and forms the halftone watermarked image in the hologram by creating hologram dots corresponding to the dots in the halftone watermarked image.

    摘要翻译: 将数字水印整合成全息图,水印全息图结构和相关应用的方法。 一种方法创建水印图像,然后将水印图像嵌入全息结构中。 使用计算机生成的全息术创建全息结构以创建全息结构的数字表示。 使用光学技术或微光刻将该数字表示记录在物理基板上。 作为替代,水印信号嵌入在物理全息结构中,通过将信号嵌入到与光学记录的全息结构光学合并的图像中,或者通过将信号嵌入图像或物理模型中,将全息图 结构形成。 另一种方法是产生半色调水印图像,并通过产生对应于半色调水印图像中的点的全息图点在全息图中形成半色调水印图像。

    Authentication of Objects Using Steganography
    6.
    发明申请
    Authentication of Objects Using Steganography 有权
    使用隐写术验证对象

    公开(公告)号:US20080170746A1

    公开(公告)日:2008-07-17

    申请号:US11925510

    申请日:2007-10-26

    IPC分类号: G06K9/00

    CPC分类号: G06T1/0064 G06T2201/0052

    摘要: Steganographic methods for encoding auxiliary data into a host signal are used to authenticate physical and electronic objects. One claim recites an object comprising: a first graphic provided on an object surface, and a storage device carried by the object. The storage device includes a second graphic stored therein. The first and second graphics are related graphics, and the second graphic includes first steganographic encoding including a plural-bit payload. Of course, other combinations are provided as well.

    摘要翻译: 用于将辅助数据编码为主机信号的隐写方法用于认证物理和电子对象。 一个权利要求描述了一个对象,包括:提供在物体表面上的第一图形,以及由对象承载的存储装置。 存储装置包括存储在其中的第二图形。 第一和第二图形是相关图形,第二图形包括包括多位有效载荷的第一隐写编码。 当然,也提供其他组合。

    Authentication of identification documents using digital watermarks
    7.
    发明授权
    Authentication of identification documents using digital watermarks 有权
    使用数字水印认证身份证件

    公开(公告)号:US07305104B2

    公开(公告)日:2007-12-04

    申请号:US10992614

    申请日:2004-11-17

    IPC分类号: H04K1/00

    CPC分类号: G06T1/0064 G06T2201/0052

    摘要: Digital watermark methods for encoding auxiliary data into a host signal are used to authenticate physical and electronic objects. In one implementation, an identification document includes electronic circuitry. The electronic circuitry includes an image of an authorized bearer of the identification document. The image includes first digital watermarking having a plural-bit identifier. In some cases, the identification document includes a printed image of the authorized bearer of the identification document. The printed image includes second digital watermarking therein. The first digital watermarking and the second digital watermarking can be cross-correlated for authentication of the identification document.

    摘要翻译: 用于将辅助数据编码为主机信号的数字水印方法用于认证物理和电子对象。 在一个实现中,识别文档包括电子电路。 电子电路包括识别文件的授权承载的图像。 图像包括具有多位标识符的第一数字水印。 在某些情况下,识别文件包括识别文件的授权承载的打印图像。 打印的图像包括其中的第二数字水印。 第一数字水印和第二数字水印可以被互相关联用于识别文档的认证。

    Steganographic encoding methods and apparatus
    8.
    发明授权
    Steganographic encoding methods and apparatus 有权
    隐写编码方法和装置

    公开(公告)号:US07970166B2

    公开(公告)日:2011-06-28

    申请号:US12406802

    申请日:2009-03-18

    IPC分类号: H04K1/00

    CPC分类号: G06T1/0064 G06T2201/0052

    摘要: The presently claimed invention relates generally to steganographic encoding. One claim recites a method including: obtaining data representing a first graphic; utilizing a multi-purpose computer processor configured for steganographically data hiding to hide a signal in the data representing the first graphic; obtaining a copy of the first graphic including a steganographically hidden signal therein; storing the copy of the first graphic in electronic memory or integrated circuitry. A steganographically hidden signal in the data representing the first graphic and the steganographically hidden signal in the copy of the first graphic are related. Of course, other combinations are provided as well.

    摘要翻译: 本发明涉及隐身编码。 一个权利要求描述了一种方法,包括:获得表示第一图形的数据; 利用被配置为隐写数据隐藏以隐藏表示第一图形的数据中的信号的多用途计算机处理器; 获取第一图形的副本,其中包括隐写隐藏信号; 将第一图形的副本存储在电子存储器或集成电路中。 在第一图形的拷贝中代表第一图形和隐写隐藏信号的数据中的隐写隐藏信号是相关的。 当然,也提供其他组合。

    Authentication of objects using steganography
    9.
    发明授权
    Authentication of objects using steganography 有权
    使用隐写术验证对象

    公开(公告)号:US07508955B2

    公开(公告)日:2009-03-24

    申请号:US11925510

    申请日:2007-10-26

    IPC分类号: H04K1/00

    CPC分类号: G06T1/0064 G06T2201/0052

    摘要: Steganographic methods for encoding auxiliary data into a host signal are used to authenticate physical and electronic objects. One claim recites an object comprising: a first graphic provided on an object surface, and a storage device carried by the object. The storage device includes a second graphic stored therein. The first and second graphics are related graphics, and the second graphic includes first steganographic encoding including a plural-bit payload. Of course, other combinations are provided as well.

    摘要翻译: 用于将辅助数据编码为主机信号的隐写方法用于认证物理和电子对象。 一个权利要求描述了一个对象,包括:提供在物体表面上的第一图形,以及由对象承载的存储装置。 存储装置包括存储在其中的第二图形。 第一和第二图形是相关图形,第二图形包括包括多位有效载荷的第一隐写编码。 当然,也提供其他组合。

    Methods utilizing steganography
    10.
    发明授权
    Methods utilizing steganography 有权
    使用隐写术的方法

    公开(公告)号:US08290202B2

    公开(公告)日:2012-10-16

    申请号:US11622373

    申请日:2007-01-11

    IPC分类号: G06K9/00

    摘要: The present invention relates generally to steganography, digital watermarking and data hiding. In one embodiment a method is provided including: processing data representing content; analyzing the data to determine whether a plural-bit identifier is steganographically encoded therein, the plural-bit identifier encoded in the data through modifications to the data, the modifications steganographically hiding the presence of the plural-bit identifier; and upon detection of the plural-bit identifier, redundantly carrying out an action while attempting to conceal the action from one or more users of the content. Of course, other embodiments are described and claimed as well.

    摘要翻译: 本发明一般涉及隐写术,数字水印和数据隐藏。 在一个实施例中,提供了一种方法,包括:处理表示内容的数据; 分析数据以确定是否对其中的多位标识符进行隐写编码,通过对数据的修改而编码在数据中的多位标识符,所述修改隐写地隐藏多位标识符的存在; 并且在检测到多位标识符时,在尝试隐藏来自内容的一个或多个用户的动作时,冗余地执行动作。 当然,也描述和要求保护其他实施例。