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1. WO2017198648 - A METHOD TO AUTHENTICATE A SUBSTRATE USING SPECKLE PATTERNS AND A DEVICE TO PERFORM THE METHOD

Veröffentlichungsnummer WO/2017/198648
Veröffentlichungsdatum 23.11.2017
Internationales Aktenzeichen PCT/EP2017/061694
Internationales Anmeldedatum 16.05.2017
IPC
G06K 9/00 2006.01
GPhysik
06Datenverarbeitung; Rechnen oder Zählen
KErkennen von Daten; Darstellen von Daten; Aufzeichnungsträger; Handhabung von Aufzeichnungsträgern
9Verfahren oder Anordnungen zum Lesen oder Erkennen gedruckter oder geschriebener Zeichen oder zum Erkennen von Mustern, z.B. Fingerabdrücken
CPC
G06K 9/00577
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
00577Recognising objects characterised by unique random properties, i.e. objects having a physically unclonable function [PUF], e.g. authenticating objects based on their unclonable texture
G06K 9/2018
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
20Image acquisition
2018Identifying/ignoring parts by sensing at different wavelengths
G06K 9/52
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
36Image preprocessing, i.e. processing the image information without deciding about the identity of the image
46Extraction of features or characteristics of the image
52by deriving mathematical or geometrical properties from the whole image
G06K 9/6289
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
62Methods or arrangements for recognition using electronic means
6288Fusion techniques, i.e. combining data from various sources, e.g. sensor fusion
6289of input or preprocessed data
G07D 7/121
GPHYSICS
07CHECKING-DEVICES
DHANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
7Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
06using wave or particle radiation
12Visible light, infra-red or ultraviolet radiation
121Apparatus characterised by sensor details
G07D 7/2033
GPHYSICS
07CHECKING-DEVICES
DHANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
7Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
20Testing patterns thereon
202using pattern matching
2033Matching unique patterns, i.e. patterns that are unique to each individual paper
Anmelder
  • COLOP Digital GmbH [AT]/[AT]
Erfinder
  • BERGQVIST, Johan
Vertreter
  • GROTH & CO KB
Prioritätsdaten
00638/1618.05.2016CH (Priorität zurückgenommen 15.11.2018)
Veröffentlichungssprache Englisch (EN)
Anmeldesprache Englisch (EN)
Designierte Staaten
Titel
(DE) A METHOD TO AUTHENTICATE A SUBSTRATE USING SPECKLE PATTERNS AND A DEVICE TO PERFORM THE METHOD
(EN) A METHOD TO AUTHENTICATE A SUBSTRATE USING SPECKLE PATTERNS AND A DEVICE TO PERFORM THE METHOD
(FR) PROCÉDÉ POUR AUTHENTIFIER UN SUBSTRAT EN UTILISANT DES TAVELURES ET DISPOSITIF POUR METTRE EN ŒUVRE LE PROCÉDÉ
Zusammenfassung
(DE)
15/15 PADN-004-P-WO Abstract Method to authenticate a substrate based on unique microstructure inherent to a region of interest of a substrate surface of the substrate, comprising the steps: (a) emitting photons from a light source onto the region of interest; (b) emitting ultrasound waves from a ultrasound source onto the region of interest; (c) 5 capturing at least one image of the region of interest in one or both of the following two ways: (i) capturing a light image in the presence of ultrasound to obtain at least one captured image of the region of interest, or (ii) capturing an ultrasound echo image in the presence of IR or near IR light to obtain at least one captured image of the region of interest; and (d) comparing the at least one 10 captured image with at least one reference in order to determine authenticity of the substrate. FIGURE 2
(EN)
Method to authenticate a substrate based on unique microstructure inherent to a region of interest of a substrate surface of the substrate, comprising the steps: (a) emitting photons from a light source onto the region of interest; (b) emitting ultrasound waves from a ultrasound source onto the region of interest; (c) capturing at least one image of the region of interest in one or both of the following two ways: (i) capturing a light image in the presence of ultrasound to obtain at least one captured image of the region of interest, or (ii) capturing an ultrasound echo image in the presence of IR or near IR light to obtain at least one captured image of the region of interest; and (d) comparing the at least one captured image with at least one reference in order to determine authenticity of the substrate.
(FR)
L'invention concerne un procédé pour authentifier un substrat en se basant sur une microstructure unique inhérente à une région d'intérêt de la surface d'un substrat, comprenant les étapes suivantes : (a) émission de photons depuis une source lumineuse sur la région d'intérêt; (b) émission d'ondes ultrasonores depuis une source d'ultrasons sur la région d'intérêt; (c) capture d'au moins une image de la région d'intérêt de l'une ou des deux manières suivantes : (i) capture d'une image lumineuse en présence d'ultrasons pour obtenir au moins une image capturée de la région d'intérêt, ou (ii) capture d'une image d'écho ultrasonore en présence de lumière IR ou proche IR pour obtenir au moins une image capturée de la région d'intérêt; et (d) comparaison de l'au moins une image capturée avec au moins une référence afin de déterminer l'authenticité du substrat.
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