公开(公告)号：WO2011018764A2

公开(公告)日：2011-02-17

申请号：PCT/IB2010/053638

申请日：2010-08-11

Applicant: KBA-NotaSys SA ,  GLOCK, Stefan ,  GILLICH, Eugen ,  SCHAEDE, Johannes, Georg ,  LOHWEG, Volker

Inventor： GLOCK, Stefan ,  GILLICH, Eugen ,  SCHAEDE, Johannes, Georg ,  LOHWEG, Volker

CPC classification number: G07D7/20 ,  G07D7/003 ,  G07D7/2016

Abstract: There is described a method for checking the authenticity of security documents, in particular banknotes, wherein authentic security documents comprise security features (41-49; 30; 10; 51, 52) printed, applied or otherwise provided on the security documents, which security features comprise characteristic visual features intrinsic to the processes used for producing the security documents. The method comprises the step of digitally processing a sample image of at least one region of interest (R. o. I.) of the surface of a candidate document to be authenticated, which region of interest encompasses at least part of the security features, the digital processing including performing a decomposition of the sample image by means of wavelet transform (WT) of the sample image. Such decomposition of the sample image is based on a wavelet packet transform (WPT) of the sample image, preferably a so-called two-dimensional shift invariant WPT (2D-SIWPT)

Abstract translation: 描述了一种用于检查安全文件，特别是纸币的真实性的方法，其中真实的安全文件包括印刷，应用或以其他方式印刷的安全特征（41-49; 30; 10; 51,52） 提供在安全文档上，哪些安全特征包括用于生成安全文档的过程固有的特征视觉特征。 该方法包括数字处理待认证的候选文档的表面的至少一个感兴趣区域（R.o.I）的样本图像的步骤，该感兴趣区域包含至少部分安全特征， 数字处理包括通过样本图像的小波变换（WT）执行样本图像的分解。 样本图像的这种分解基于样本图像的小波包变换（WPT），优选所谓的二维平移不变WPT（2D-SIWPT）

公开(公告)号：EP2465098A2

公开(公告)日：2012-06-20

申请号：EP10757478.2

申请日：2010-08-11

Applicant: KBA-NotaSys SA

Inventor： GLOCK, Stefan ,  GILLICH, Eugen ,  SCHAEDE, Johannes, Georg ,  LOHWEG, Volker

IPC: G07D7/20 ,  G07D7/00 ,  G06F17/14

CPC classification number: G07D7/20 ,  G07D7/003 ,  G07D7/2016

Abstract: There is described a method for checking the authenticity of security documents, in particular banknotes, wherein authentic security documents comprise security features (41-49; 30; 10; 51, 52) printed, applied or otherwise provided on the security documents, which security features comprise characteristic visual features intrinsic to the processes used for producing the security documents. The method comprises the step of digitally processing a sample image of at least one region of interest (R.o.I.) of the surface of a candidate document to be authenticated, which region of interest encompasses at least part of the security features, the digital processing including performing a decomposition of the sample image by means of wavelet transform (WT) of the sample image. Such decomposition of the sample image is based on a wavelet packet transform (WPT) of the sample image, preferably a so-called two-dimensional shift invariant WPT (2D-SIWPT).

公开(公告)号：EP2465098B1

公开(公告)日：2014-11-05

申请号：EP10757478.2

申请日：2010-08-11

Applicant: KBA-NotaSys SA

Inventor： GLOCK, Stefan ,  GILLICH, Eugen ,  SCHAEDE, Johannes, Georg ,  LOHWEG, Volker

IPC: G07D7/20 ,  G07D7/00 ,  G06F17/14

CPC classification number: G07D7/20 ,  G07D7/003 ,  G07D7/2016

Abstract: There is described a method for checking the authenticity of security documents, in particular banknotes, wherein authentic security documents comprise security features (41-49; 30; 10; 51, 52) printed, applied or otherwise provided on the security documents, which security features comprise characteristic visual features intrinsic to the processes used for producing the security documents. The method comprises the step of digitally processing a sample image of at least one region of interest (R.o.I.) of the surface of a candidate document to be authenticated, which region of interest encompasses at least part of the security features, the digital processing including performing a decomposition of the sample image by means of wavelet transform (WT) of the sample image. Such decomposition of the sample image is based on a wavelet packet transform (WPT) of the sample image, preferably a so-called two-dimensional shift invariant WPT (2D-SIWPT).

Abstract translation: 描述了一种用于检查安全文件，特别是纸币的真实性的方法，其中真实的安全文件包括在安全文件上打印，应用或以其他方式提供的安全性文件的安全特征（41-49; 30; 10; 51,52） 特征包括用于生成安全文档的过程所固有的特征视觉特征。 该方法包括以下步骤：数字处理要认证的候选文档的表面的至少一个感兴趣区域（RoI）的样本图像，感兴趣的区域包括安全特征的至少一部分，数字处理包括执行 通过样本图像的小波变换（WT）对样本图像进行分解。 样本图像的这种分解基于样本图像的小波包变换（WPT），优选地是所谓的二维移位不变量WPT（2D-SIWPT）。