Kba-Notasys Sa

Koenig & Bauer-Aktiengesellschaft

Eugen Gillich

Volker Lohweg

Johannes Georg Schaede

Helene Dörksen

Harald Willeke

Thomas Türke

Johannes Georg Scheade

Denis Petker

Baris Gün SÜRMELI

Uwe Mönks

Jan-Friedrich Ehlenbröker

Jan Leif Hoffmann

Stefan Glock

Jürg Hofmann

Roland Hildebrand

Harald Heinrich Willeke

Jurg Hofmann

Helene Dorksen

Examples include authenticating a banknote having at least one printed area on a substrate thereof. An optoelectronic capturing device captures the at least one printed area on respective substrates of each of a plurality of copies of the same type of banknote to be authenticated and provides raw image data to a processor unit for visualizing the respective captured printed areas as an image on a display device connected to the processor unit. The processor unit partitions the respective image into a plurality of regions of interest (ROIs) and selectively provides different features for authentication of the certain type of banknote from the raw image data of each of the ROIs. Different selected features each form different classification models and authentication of a banknote to be presently authenticated is carried out using a plurality of classification models.

Method for authenticating a banknote having at least one printed area on the substrate thereof

In some examples, a smartphone or tablet includes a device able to generate a digital identifier of a copy that includes at least one print image. The device includes at least one optoelectronic detection device that detects the at least one print image and creates a representation that includes a multiplicity of pixels. The device further includes a unit that evaluates brightness intensities of the pixels, that segments the representation into multiple fields that each are composed of pixels of the representation, and that provides each of these fields with a piece of position information. The unit also ascertains, in each of these fields of adjoining pixels, a difference in their respective brightness intensities, and displays the differences as a frequency distribution. A display device further displays the digital identifier of the respective copy of the relevant printed product in the form of a graphical and/or alphanumerical display.

Smartphone or tablet comprising a device for generating a digital identifier of a copy, including at least one print image of a printed product produced in a production system, and method for using this device

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: &#x2014;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; &#x2014;carrying out a Wavelet selection amongst a pool of Wavelet types based on the categorization map; and &#x2014;performing the Wavelet transform of the sample image on the basis of the selected Wavelet.

Authentication of security documents and mobile device to carry out the authentication

There is described a method for touchless counting of substantially planar substrates, especially banknotes, which are stacked in the form of stacks of substrates, said method comprising the following steps: taking at least one sample image of a portion of a side of a stack of substrates, which sample image contains contrast information representing substrate edges that extend along substantially a first direction in the sample image; processing the contrast information representing the substrate edges within the sample image (), which processing includes subjecting at least one area of interest () within the sample image () to anisotropic diffusion to produce a processed image containing a substantially coherent set of continuous lines representing the substrate edges; and counting the number of substrate edges in said processed image.

Method and system for touchless counting of stacked substrates, especially bundled banknotes

There is described a method for checking the authenticity of security documents, in particular banknotes, wherein authentic security documents comprise security features (-) 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).

Authentication of security documents, in particular banknotes

There is described a method for checking the authenticity of security documents, in particular banknotes, wherein authentic security documents comprise security features 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 steps of (i) acquiring a sample image of at least one region of interest of the surface of a candidate document to be authenticated, which region of interest encompasses at least part of the security features, (ii) digitally processing the sample image by performing a decomposition of the sample image into at least one scale sub-space containing high resolution details of the sample image and extracting classifying features from the scale sub-space, and (iii) deriving an authenticity rating of the candidate document based on the extracted classifying features.

Authentication of security documents, in particular of banknotes

Growing community of inventors

Bielefeld, Germany

Eugen Gillich