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    PROCEDE D'AUTHENTIFICATION UNITAIRE D'UN OBJET MATERIEL COMBINANT CRYPTOGRAPHIE VISUELLE ET SIGNATURE MATIERE
    2.
    发明公开
    PROCEDE D'AUTHENTIFICATION UNITAIRE D'UN OBJET MATERIEL COMBINANT CRYPTOGRAPHIE VISUELLE ET SIGNATURE MATIERE 审中-公开
    方法来与视觉密码和材料SIGNATURE硬件点的统一身份认证平台

    公开(公告)号：EP2705506A1

    公开(公告)日：2014-03-12

    申请号：EP12725079.3

    申请日：2012-04-30

    申请人： Signoptic Technologies

    发明人： BOUTANT, Yann ,  FOURNEL, Thierry

    IPC分类号： G07F7/08 ,  G06T1/00

    CPC分类号： G06Q20/389 ,  G06T1/0028 ,  G09C5/00 ,  H04N2201/3236

    摘要： The invention relates to a method of unitary authentication of a hardware object comprising a phase of constructing an authenticator system comprising at least: a step of selecting a message image, a step of selecting a support image, a step of transforming the message and support images so as to generate at least two shared images according to a method of transformation implementing at least one random sequence, the message image not being accessible in each shared image taken individually, a step of recording at least one shared image. According to the invention, in the phase of constructing an authenticator each random sequence, termed a material signature, is extracted or generated from at least one structural characteristic of a region at least of the hardware object and able to be generated on demand and identically on the basis of the hardware object.

    Fingerprinting a data object with multiple watermarks
    7.
    发明公开
    Fingerprinting a data object with multiple watermarks 审中-公开
    Fingerabdruckerzeugung eines Datenobjekts mit mehrfachen Wasserzeichen

    公开(公告)号：EP2204979A1

    公开(公告)日：2010-07-07

    申请号：EP08173051.7

    申请日：2008-12-30

    申请人： Irdeto Access B.V.

    发明人： Boyd, Joseph ,  Marcotte, Peter

    IPC分类号： H04N1/32 ,  G06T1/00 ,  H04N7/24 ,  H04N7/58

    CPC分类号： H04N21/435 ,  G06T1/0021 ,  H04N1/32149 ,  H04N1/32304 ,  H04N1/32352 ,  H04N21/23439 ,  H04N21/235 ,  H04N21/2365 ,  H04N21/4347 ,  H04N21/812 ,  H04N21/8358 ,  H04N2201/3236 ,  H04N2201/3239

    摘要： The invention provides a method and a system for fingerprinting a data object at a server system and a method and a system for extracting the fingerprint from the data object at a client system. Sections of a data object are watermarked with known watermark data to create a first and a second variant of the data object, whereby the section boundaries are optionally saved as metadata. Using the metadata the first and second variant are combined by taking sections from the variants to create a fingerprinted data object. From the fingerprinted data object the watermark data can be extracted again.

    摘要翻译： 本发明提供了一种用于在服务器系统处指纹化数据对象的方法和系统，以及用于在客户端系统从数据对象提取指纹的方法和系统。 数据对象的部分用已知的水印数据进行水印以创建数据对象的第一和第二变体，由此可选地将部分边界保存为元数据。 使用元数据，通过从变体获取部分来创建指纹数据对象来组合第一和第二变体。 从指纹数据对象可以再次提取水印数据。

    DATA HIDING TECHNIQUE
    8.
    发明公开
    DATA HIDING TECHNIQUE 审中-公开
    隐藏数据

    公开(公告)号：EP2018766A2

    公开(公告)日：2009-01-28

    申请号：EP07809050.3

    申请日：2007-05-08

    申请人： Thomson Licensing

    发明人： ZOU, Dekun ,  TIAN, Jun ,  ZHAI, Jiefu ,  BLOOM, Jeffrey Adam ,  LLACH, Joan

    IPC分类号： H04N1/32 ,  G06T5/00

    CPC分类号： H04N1/32251 ,  H04N1/32309 ,  H04N2201/3205 ,  H04N2201/3214 ,  H04N2201/3215 ,  H04N2201/323 ,  H04N2201/3236 ,  H04N2201/3239

    摘要： Information available at a decoder is embedded into image content after decoding by first representing that information by at least one film grain pattern and then blending that at least one film grain pattern with the decoded image content. Such image content is typically in the form of a movie and examples of the information to be embedded include identification of the specific decoding device, the user of the decoding device, the time and date of decoding, the model number of the device, the versions of software running on the device, the status of the device or connections to the device, the contents of device registers or memory locations within the device, among many other possible data. When an unauthorized copy of image content is discovered, the copied image content undergoes a comparison to the decoded image content to generate difference data. Thereafter, the difference data undergoes comparison with a database of film grain patterns to recover the embedded data.

    Image processing apparatus and method
    9.
    发明公开
    Image processing apparatus and method 审中-公开
    Bildverarbeitungsvorrichtung und -verfahren

    公开(公告)号：EP1930840A2

    公开(公告)日：2008-06-11

    申请号：EP07111742.8

    申请日：2007-07-04

    申请人： CANON KABUSHIKI KAISHA

    发明人： Kunori, Shiro ,  Kobashi, Kazufumi

    IPC分类号： G06K9/00 ,  H04N1/21 ,  G06Q10/00 ,  G07D7/00

    CPC分类号： G06K9/00 ,  G06K9/00577 ,  G07D7/2033 ,  H04N1/00411 ,  H04N1/0048 ,  H04N1/32101 ,  H04N2201/3235 ,  H04N2201/3236

    摘要： The invention provides an image processing apparatus and a method therefor capable of registering a paper fingerprint at a position that considers a matching accuracy and security. The image forming apparatus executes: a paper fingerprint acquisition step of reading a paper fingerprint (S1101-S1104); a paper fingerprint registration determination step of determining whether paper fingerprint information acquired in the paper fingerprint information acquisition step is suitable as a paper fingerprint for paper (51105-51107) ; and a paper fingerprint registration step of registering a paper fingerprint detected in the paper fingerprint registration determination step as a paper fingerprint for the paper (s803).

    摘要翻译： 本发明提供一种图像处理装置及其方法，其能够在考虑到匹配精度和安全性的位置处登记纸指纹。 图像形成装置执行读取纸指纹的纸指纹获取步骤（S1101-S1104）。 纸指纹登记确定步骤，确定在纸指纹信息获取步骤中获取的纸指纹信息是否适合作为纸的纸指纹（51105-51107）; 以及纸张指纹登记步骤，将在纸张指纹登记确定步骤中检测到的纸指纹登记为纸张的纸指纹（s803）。

    SIGN AUTHENTICATION SYSTEM AND SIGN AUTHENTICATION METHOD
    10.
    发明公开
    SIGN AUTHENTICATION SYSTEM AND SIGN AUTHENTICATION METHOD 审中-公开
    济宁认证机构

    公开(公告)号：EP1919184A1

    公开(公告)日：2008-05-07

    申请号：EP06781564.7

    申请日：2006-07-25

    申请人： Ito, Yoichiro

    发明人： SATOU, Syozo

    IPC分类号： H04N1/387 ,  G06F15/00

    CPC分类号： H04N1/32106 ,  G03G21/04 ,  G06K9/00577 ,  H04N1/32133 ,  H04N2201/3236 ,  H04N2201/3257 ,  H04N2201/3269 ,  H04N2201/3281

    摘要： To provide a sign authentication system and method for authenticating the originality of an object having a sign such as a seal or a signature or a pattern which can be deemed as a sign, making counterfeit very difficult even if the mechanism of authentication is revealed, obviating the need for being additionally provided with a special device such as an IC chip used for authenticating the originality. A sign authentication system provides reading a sign such as a personal seal impression as color information for each mesh division, extracting feature points from the color information and storing them, and creating a code for authentication from the feature points. The sign is made with an ink containing color material particles smaller than the mesh division. The feature points on the basis of variation of color information caused are extracted when the mesh division is shifted.

    摘要翻译： 为了提供一种用于认证具有诸如密封或签名或可被认为是标志的图案的符号的对象的原创性的签名认证系统和方法，即使发现认证机制，假冒也非常困难，消除 需要另外提供诸如用于认证原创性的IC芯片的特殊装置。 签名认证系统提供读取诸如个人印章印象的标志作为每个网格划分的颜色信息，从颜色信息中提取特征点并存储它们，以及从特征点创建用于认证的代码。 标志用含有小于网格划分的彩色材料颗粒的油墨制成。 当网格分割移位时，提取基于引起的颜色信息的变化的特征点。