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公开(公告)号：US09153005B2
公开(公告)日：2015-10-06
申请号：US14006863
申请日：2012-03-23
申请人： Fabio Tremolada , Marc M. Pic , Mathieu Hoarau
发明人： Fabio Tremolada , Marc M. Pic , Mathieu Hoarau
CPC分类号： G06T1/0021 , G06K9/00442 , G06K9/76 , G07D7/0006 , G07D7/003 , G07D7/124 , G07D7/20
摘要： The method of automatically authenticating a document having a label-forming portion comprises the following steps: a) printing an authentic label having optically-variable elements; b) photographing the authentic label to create a first reference image; c) calculating and storing a reference digital fingerprint of the label; d) photographing a label for verification successively in first lighting conditions and in second lighting conditions that are essentially different from the first lighting conditions in order to create first and second verification images, by using a camera having a communications unit, a memory unit, and a calculation unit; e) verifying the optically-variable nature of said elements from the first and second verification images and calculating a verification digital fingerprint for the label that is to be verified; and f) comparing the verification digital fingerprint with the corresponding reference digital fingerprint, calculating the distance between these two digital fingerprints, and comparing the distance with a predetermined threshold.
摘要翻译： 自动认证具有标签形成部分的文件的方法包括以下步骤：a）打印具有光学可变元素的真实标签; b）拍摄真实标签以创建第一参考图像; c）计算和存储标签的参考数字指纹; d）在第一照明条件和与第一照明条件基本上不同的第二照明条件下连续地拍摄标签以进行验证，以便通过使用具有通信单元，存储单元以及存储单元的照相机来创建第一和第二验证图像 计算单位 e）从第一和第二验证图像验证所述元件的光学可变性质，并计算要验证的标签的验证数字指纹; 以及f）将验证数字指纹与对应的参考数字指纹进行比较，计算这两个数字指纹之间的距离，并将距离与预定阈值进行比较。
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公开(公告)号：US20140055824A1
公开(公告)日：2014-02-27
申请号：US14006863
申请日：2012-03-23
申请人： Fabio Tremolada , Marc M. Pic , Mathieu Hoarau
发明人： Fabio Tremolada , Marc M. Pic , Mathieu Hoarau
CPC分类号： G06T1/0021 , G06K9/00442 , G06K9/76 , G07D7/0006 , G07D7/003 , G07D7/124 , G07D7/20
摘要： The method of automatically authenticating a document having a label-forming portion comprises the following steps: a) printing an authentic label having optically-variable elements; b) photographing the authentic label to create a first reference image; c) calculating and storing a reference digital fingerprint of the label; d) photographing a label for verification successively in first lighting conditions and in second lighting conditions that are essentially different from the first lighting conditions in order to create first and second verification images, by using a camera having a communications unit, a memory unit, and a calculation unit; e) verifying the optically-variable nature of said elements from the first and second verification images and calculating a verification digital fingerprint for the label that is to be verified; and f) comparing the verification digital fingerprint with the corresponding reference digital fingerprint, calculating the distance between these two digital fingerprints, and comparing the distance with a predetermined threshold.
摘要翻译： 自动认证具有标签形成部分的文件的方法包括以下步骤：a）打印具有光学可变元素的真实标签; b）拍摄真实标签以创建第一参考图像; c）计算和存储标签的参考数字指纹; d）在第一照明条件和与第一照明条件基本上不同的第二照明条件下连续地拍摄标签以进行验证，以便通过使用具有通信单元，存储单元和相机的照相机来创建第一和第二验证图像 计算单位 e）从第一和第二验证图像验证所述元件的光学可变性质，并计算要验证的标签的验证数字指纹; 以及f）将验证数字指纹与对应的参考数字指纹进行比较，计算这两个数字指纹之间的距离，并将距离与预定阈值进行比较。
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