公开(公告)号：AU2014210743B2

公开(公告)日：2017-03-09

申请号：AU2014210743

申请日：2014-02-04

Applicant: KBA NOTASYS SA

Inventor： LOHWEG VOLKER ,  HOFFMANN JAN LEIF ,  DORKSEN HELENE ,  HILDEBRAND ROLAND ,  GILLICH EUGEN ,  HOFMANN JURG ,  SCHAEDE JOHANNES GEORG

IPC: G07D7/00 ,  G07D7/20

Abstract: A method of authenticating security documents and a mobile device, especially a smartphone, programmed to carry out the method, based on an analysis of features which are produced by intaglio printing, which analysis involves a decomposition of sample images of a candidate document to be authenticated based on Wavelets, each sample image being digitally processed by performing a Wavelet transform of the sample image in order to derive a set of classification features. The method is based on an adaptive approach, which includes the following steps : - prior to carrying out the Wavelet transform, defining a categorization map containing local information about different intaglio line structures that are found on the security documents; - carrying out a Wavelet selection amongst a pool of Wavelet types based on the categorization map; and - performing the Wavelet transform of the sample image on the basis of the selected Wavelet.

公开(公告)号：MX2015010112A

公开(公告)日：2015-12-09

申请号：MX2015010112

申请日：2014-02-04

Applicant: KBA NOTASYS SA

Inventor： SCHAEDE JOHANNES GEORG ,  LOHWEG VOLKER ,  HOFFMANN JAN LEIF ,  DÖRKSEN HELENE ,  HILDEBRAND ROLAND ,  GILLICH EUGEN ,  HOFMANN JÜRG

IPC: G07D7/00 ,  G07D7/20

Abstract: Se describe un método de autenticación de los documentos de seguridad y un dispositivo móvil, especialmente un teléfono inteligente, programado para llevar a cabo el método, con base en un análisis de las características que se producen por calcografía, cuyo análisis implica una descomposición de las imágenes de muestra de un documento candidato que se autenticará con base en las ondículas, cada imagen se procesa digitalmente mediante la realización de una transformada de ondícula de la imagen de muestra con el fin de obtener un conjunto de características de clasificación. El método se basa en un enfoque adaptativo, que incluye las siguientes etapas: - antes de realizar la transformada de ondícula, definir un mapa de categorización que contiene la información local acerca de las diferentes estructuras de línea de calcografía que se encuentran en los documentos de seguridad; - llevar a cabo una selección de ondícula entre un grupo de tipos ondícula con base en el mapa de categorización; y - realizar la transformada de ondícula de la imagen de muestra con base en la ondícula seleccionada.

公开(公告)号：CA2899868C

公开(公告)日：2019-12-31

申请号：CA2899868

申请日：2014-02-04

Applicant: KBA NOTASYS SA

Inventor： LOHWEG VOLKER ,  HOFFMANN JAN LEIF ,  DORKSEN HELENE ,  HILDEBRAND ROLAND ,  GILLICH EUGEN ,  HOFMANN JURG ,  SCHAEDE JOHANNES GEORG

IPC: G07D7/20

Abstract: A method of authenticating security documents and a mobile device, especially a smartphone, programmed to carry out the method, based on an analysis of features which are produced by intaglio printing, which analysis involves a decomposition of sample images of a candidate document to be authenticated based on Wavelets, each sample image being digitally processed by performing a Wavelet transform of the sample image in order to derive a set of classification features. The method is based on an adaptive approach, which includes the following steps : - prior to carrying out the Wavelet transform, defining a categorization map containing local information about different intaglio line structures that are found on the security documents; - carrying out a Wavelet selection amongst a pool of Wavelet types based on the categorization map; and - performing the Wavelet transform of the sample image on the basis of the selected Wavelet.

公开(公告)号：AU2014210743A1

公开(公告)日：2015-07-30

申请号：AU2014210743

申请日：2014-02-04

Applicant: KBA NOTASYS SA

Inventor： LOHWEG VOLKER ,  HOFFMANN JAN LEIF ,  DORKSEN HELENE ,  HILDEBRAND ROLAND ,  GILLICH EUGEN ,  HOFMANN JURG ,  SCHAEDE JOHANNES GEORG

IPC: G07D7/00 ,  G07D7/20

Abstract: A method of authenticating security documents and a mobile device, especially a smartphone, programmed to carry out the method, based on an analysis of features which are produced by intaglio printing, which analysis involves a decomposition of sample images of a candidate document to be authenticated based on Wavelets, each sample image being digitally processed by performing a Wavelet transform of the sample image in order to derive a set of classification features. The method is based on an adaptive approach, which includes the following steps : - prior to carrying out the Wavelet transform, defining a categorization map containing local information about different intaglio line structures that are found on the security documents; - carrying out a Wavelet selection amongst a pool of Wavelet types based on the categorization map; and - performing the Wavelet transform of the sample image on the basis of the selected Wavelet.

公开(公告)号：PL2951791T3

公开(公告)日：2019-10-31

申请号：PL14706112

申请日：2014-02-04

Applicant: KBA NOTASYS SA

Inventor： LOHWEG VOLKER ,  HOFFMANN JAN LEIF ,  DÖRKSEN HELENE ,  HILDEBRAND ROLAND ,  GILLICH EUGEN ,  HOFMANN JÜRG ,  SCHAEDE JOHANNES GEORG

IPC: G07D7/00 ,  G07D7/20

公开(公告)号：NZ710433A

公开(公告)日：2018-03-23

申请号：NZ71043314

申请日：2014-02-04

Applicant: KBA NOTASYS SA

Inventor： LOHWEG VOLKER ,  HOFFMANN JAN LEIF ,  DÖRKSEN HELENE ,  HILDEBRAND ROLAND ,  GILLICH EUGEN ,  HOFMANN JÜRG ,  SCHAEDE JOHANNES GEORG

IPC: G07D7/00 ,  B42D25/337 ,  B42D25/342 ,  G06K9/36 ,  G06K9/46 ,  G06T7/168 ,  G07D7/20

Abstract: A method of authenticating security documents and a mobile device, especially a smartphone, programmed to carry out the method, based on an analysis of features which are produced by intaglio printing, which analysis involves a decomposition of sample images of a candidate document to be authenticated based on Wavelets, each sample image being digitally processed by performing a Wavelet transform of the sample image in order to derive a set of classification features. The method is based on an adaptive approach, which includes the following steps : - prior to carrying out the Wavelet transform, defining a categorization map containing local information about different intaglio line structures that are found on the security documents; - carrying out a Wavelet selection amongst a pool of Wavelet types based on the categorization map; and - performing the Wavelet transform of the sample image on the basis of the selected Wavelet.

公开(公告)号：PH12015501668B1

公开(公告)日：2015-10-19

申请号：PH12015501668

申请日：2015-07-27

Applicant: KBA NOTASYS SA

Inventor： LOHWEG VOLKER ,  HOFFMANN JAN LEIF ,  D™RKSEN HELENE ,  HILDEBRAND ROLAND ,  GILLICH EUGEN ,  HOFMANN JRG ,  SCHAEDE JOHANNES GEORG

IPC: G07D7/00 ,  G07D7/20

Abstract: Maintaining confidence in security documents, especially banknotes, is and remains a major concern for the central banks in order to maintain the stability of the economy around the world. In this application there is described an image; processing and pattern recognition approach which is based on the Sound-of-IntaglioT principle for the usage in smart devices such as smartphones. Today, in many world regions smartphones are in use. These devices become more and more computing units, equipped with resource-limited, but effective CPUs, cameras with illumination, and flexible operating systems. Hence, it is obvious to apply smartphones for banknote authentication, especially for visually impaired persons. The approach shows that those devices are capable of processing data under the constraints of image quality and processing power. Strictly a mobile device as such is not an industrial product for harsh environments, but it is possible to use mobile devices for banknote authentication. The concept is based on a new strategy for constructing adaptive Wavelets for the analysis of different print patterns on a banknote. Furthermore, a banknote specific feature vector is generated which describes an authentic banknote effectively under various illumination conditions. A multi-stage Linear-discriminant-analysis classifier generates stable and reliable output.

公开(公告)号：CA2899868A1

公开(公告)日：2014-08-07

申请号：CA2899868

申请日：2014-02-04

Applicant: KBA NOTASYS SA

Inventor： LOHWEG VOLKER ,  HOFFMANN JAN LEIF ,  DORKSEN HELENE ,  HILDEBRAND ROLAND ,  GILLICH EUGEN ,  HOFMANN JURG ,  SCHAEDE JOHANNES GEORG

IPC: G07D7/00 ,  G07D7/20

Abstract: A method of authenticating security documents and a mobile device, especially a smartphone, programmed to carry out the method, based on an analysis of features which are produced by intaglio printing, which analysis involves a decomposition of sample images of a candidate document to be authenticated based on Wavelets, each sample image being digitally processed by performing a Wavelet transform of the sample image in order to derive a set of classification features. The method is based on an adaptive approach, which includes the following steps : - prior to carrying out the Wavelet transform, defining a categorization map containing local information about different intaglio line structures that are found on the security documents; - carrying out a Wavelet selection amongst a pool of Wavelet types based on the categorization map; and - performing the Wavelet transform of the sample image on the basis of the selected Wavelet.

公开(公告)号：SG11201505645TA

公开(公告)日：2015-08-28

申请号：SG11201505645T

申请日：2014-02-04

Applicant: KBA NOTASYS SA

Inventor： LOHWEG VOLKER ,  HOFFMANN JAN LEIF ,  DÖRKSEN HELENE ,  HILDEBRAND ROLAND ,  GILLICH EUGEN ,  HOFMANN JÜRG ,  SCHAEDE JOHANNES GEORG

IPC: G07D7/00 ,  G07D7/20

Abstract: A method of authenticating security documents and a mobile device, especially a smartphone, programmed to carry out the method, based on an analysis of features which are produced by intaglio printing, which analysis involves a decomposition of sample images of a candidate document to be authenticated based on Wavelets, each sample image being digitally processed by performing a Wavelet transform of the sample image in order to derive a set of classification features. The method is based on an adaptive approach, which includes the following steps: —prior to carrying out the Wavelet transform, defining a categorization map containing local information about different intaglio line structures that are found on the security documents; —carrying out a Wavelet selection amongst a pool of Wavelet types based on the categorization map; and —performing the Wavelet transform of the sample image on the basis of the selected Wavelet.