EP0987669B1 - Verfahren zur Authentifizierung von Kunstwerken und Vorrichtung zur Durchführung des Verfahrens - Google Patents

Verfahren zur Authentifizierung von Kunstwerken und Vorrichtung zur Durchführung des Verfahrens Download PDF

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Publication number
EP0987669B1
EP0987669B1 EP99402177A EP99402177A EP0987669B1 EP 0987669 B1 EP0987669 B1 EP 0987669B1 EP 99402177 A EP99402177 A EP 99402177A EP 99402177 A EP99402177 A EP 99402177A EP 0987669 B1 EP0987669 B1 EP 0987669B1
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EP
European Patent Office
Prior art keywords
work
works according
authenticating
contact
optical unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP99402177A
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English (en)
French (fr)
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EP0987669A1 (de
Inventor
Simon Ormerod
Gilles Leroux
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Entrust Corp
Original Assignee
Datacard Corp
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Filing date
Publication date
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Publication of EP0987669A1 publication Critical patent/EP0987669A1/de
Application granted granted Critical
Publication of EP0987669B1 publication Critical patent/EP0987669B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps

Definitions

  • the present invention relates to an authentication method valuables such as works of art and a special device designed for the implementation of this method.
  • a device which is fixed on an object to be authenticated, and which is provided with an integrated circuit with a microprocessor and memories.
  • the device also includes contacts for the binder to recording means allowing to record confidential information about the object in the memories of the device.
  • the method according to the invention aims to overcome the disadvantages of the prior art by proposing a method that allows anyone to recognize or authenticate an object or work or to certify originally.
  • the device specially designed for the implementation of this process allows to extract a lot of information from the table or the analyzed object. This information can be used to identify the name of the author of the table, when it is unknown, or to authenticate a table when the information concerning him has already been previously recorded using this device. This process applies both to oil paintings as watercolors or objects.
  • a first object of the invention is to extract a certain number table information allowing the identification of the table, and to provide a means of storing this information which will then be fixed on the board.
  • the step of fixing the module to contactless chip on the artwork consists of inserting the chip module without contact in the frame surrounding the work and / or on the canvas.
  • the scanner consists of a camera linear high resolution color.
  • the lighting device can emit visible waves and invisible waves and, in particular, X-radiation
  • the module comprises a support of determined material having a first housing for receiving the contactless chip, so that when the module is attached to the artwork, the chip is covered by the support.
  • the support comprises a second housing (22) for receiving a wax seal authenticating the module.
  • the material constituting the support is a polymerizable resin, ensuring the connection of the chip with the board.
  • the data extracted from the work by scanning consist of different classes of data, the classes that can consist of a class containing a matrix defining the color of all pixels forming the work of a class containing information on the size of the work of a class containing information on the speed of movement of the brush, the signature and the gesture of the artist.
  • a multiplicative factor is associated with each class of data, classes including information about the color and the size of the work are assigned a multiplicative factor less than the multiplicative factor associated with other classes.
  • Another object of the invention is to provide a device designed for the implementation of this process of authentication of works Art.
  • this device comprises a set optical, a table support tray, a means of moving the optical assembly in two perpendicular directions in a plane parallel to that of the work.
  • the angular position of the optical assembly is adjustable, the optical assembly comprising a device lighting and a scanner connected to an on-board computer.
  • the optical assembly is installed on a U-shaped or L-shaped beam, the beam and / or the work being animated by a relative motion so that the optical assembly sweeps the entire surface of the work, the movement being controlled by the on-board computer and powered by a motor.
  • the work is set on a plateau of support, the sliding support tray in a first pair of slides, the first pair of slides sliding in a second pair of slides so that, by relative displacement of the pairs of slides relative to each other, the optical assembly mounted fixed on the beam can sweep the whole surface of the work.
  • the optical assembly slides in a first slide of the beam parallel to the support plate, the sliding beam in at least a second slide of a base, of so that the optical assembly sweeps the entire surface of the work.
  • the scanner consists of a camera linear high resolution color.
  • the lighting device can emit visible and invisible waves and in particular X-rays.
  • a third object of the invention is to provide a chip module without contact which contains in its memory at least one of the information the color of the pixels forming the work, the size of the the work, the speed of movement of the brush, the signature and the gestures of the artist, the contactless smart module being fixed to the work.
  • the module includes a support having a first housing for receiving the contactless chip, so that when the module is fixed on the work, the chip is covered by the support, the material constituting the support being a polymerizable resin connecting the chip to the board.
  • the method according to the invention consists in extracting information of an array using an optical assembly, to compress and store this information in a contactless smart module that will then be fixed on the back of the painting.
  • the optical assembly is composed of a lighting device (44, 144) and a scanner (45, 145) controlled by an on-board computer.
  • a way angular adjustment allows the user to modify in a very specifies the direction of the optical assembly.
  • the lighting device (44, 144) can emit waves in the visible and in the invisible.
  • the user can scan a table under different wavelengths and thus obtain information about, for example, the age of the painting, the type of ink or the composition of the paint used.
  • an X-ray allows to visualize a model covered by a second coat of paint although this model imperceptible to the naked eye.
  • the scanner (45, 145) consists of a high linear camera resolution, for example, 5000 dots per inch, comprising three color bars.
  • the depth of field of this camera is automatically set by the on-board computer.
  • a table can be scanned from different angles by making several passes. So, the different images obtained will be superimposed on the pixel-mead, way to get rid of shadows and get a picture in three dimensions of the table.
  • Implemented data processing software in the on-board computer is responsible for processing the data obtained by the different stages of scanning.
  • these data are assigned to different classes of data.
  • a class of data can contain, for example, information on the speed of movement of the brush, signature or gesture of the artist.
  • Each class is affected a multiplicative factor.
  • the authentication method according to the present invention not only allows to analyze the colors of the painting but also the gestures of the artist. The colors of a painting are with time. Moreover, it is easier for a forger to reproduce a color than to reproduce the painter's gestures. That's why, from advantageously, the classes containing information on the colors and image size are multiplied by a multiplicative factor lower than other classes.
  • the data obtained by scanning the table are then compressed by a file compression program installed on the onboard computer, then stored in a contactless smart module (2) of sufficient capacity.
  • the contactless smart module (2) is then attached to the back of the work (1).
  • FIGS. 1A and 1B show a contactless smart module (2) inserted on the frame (3) of the work (1) according to two different modes of production.
  • the module (2) comprises a support (202) comprising a first housing (221) for receiving a contactless chip (201) and optionally a second housing (222) for receiving, by for example, a wax seal (203) certifying the authenticity of the module.
  • the material used for producing the support (201) of the module (2) is, for for example, a polymerizable resin. The use of the resin helps to fix the module (2) to the fabric (4) and / or the frame (3) so that the chip (201) without contact, for example, is placed against the canvas (4).
  • the antenna (204) of the chip (201) without contact is either inserted or embedded in the support (202).
  • the antenna is either inserted into the fabric of the fabric ( Figure 1B), according to a first embodiment and in this case the conductors of the antenna (204) must be slipped in the frame, or it may, according to a second embodiment, be glued to the back of the fabric (Fig. 1A). So known, the transmission of information received or coming out of the chip (201) without contact is made, either by a transmission device by electromagnetic induction, either by a radio transmission device frequencies or any other device requiring an antenna (204).
  • the invention also relates to a specially designed device for the implementation of the authentication process of works of art.
  • the table moves with respect to the optical device which is fixed.
  • the device (9) is consisting of a parallelepipedic base (10) on which two pairs of slides (21, 22, 23, 24) are arranged perpendicularly. Each pair of slides is composed of two parallel slides between them.
  • the two slides of the first pair of slides (21, 22) are each disposed along two parallel sides (11, 12) of the base (10).
  • the slides (23, 24) of the second pair of slides are mounted sliding in the first pair of slides (21, 22).
  • a tray of support (31) is slidably mounted in the second pair of rails (23, 24). Sliding in the second pair of slides (23, 24), the tray of support moves in the transverse direction of the base (10).
  • the support plate (31) indicates the direction of movement of the support in the second slides (23, 24). Moreover, when the second set of slides (23, 24) slides in the first set of slides (21, 22), the support plate (31) moves in the longitudinal direction (L) of the base (10). Thus, the support plate (31) can scan the entire surface of the base (10). A motor (not shown) simultaneously actuates the movement of the support plate (31) on the second pair of slides (23, 24) and the movement of the first pair of slides (21, 22) on the second pair of slides (23, 24). An on-board computer (not shown) allows to control with great precision the movements of the support plate on the base (10). In addition, the support plate (31) comprises four fasteners (32) which make it possible to fix the table to be analyzed.
  • An L-shaped bracket (40) overhangs the base (10). She is fixed in the center of one of the sides (14) perpendicular to the sides on which the first pair of slide (21, 22) is fixed.
  • the stem (40) is formed of two branches. One (42) of the two branches is parallel to the slides (23, 24) and has a minimum length equal to half the length of the base (10).
  • An optical assembly, represented in FIG. 2B, formed of a scanner (45) and a lighting device (44) is disposed on the surface (43) branch (42) facing the base (10).
  • the scanner (45) is consisting of a high resolution color linear camera. The device lighting can scan a range of wavelengths from visible to the invisible.
  • the angular position of the optical assembly (44, 45) is adjustable.
  • the optical assembly (44, 45) is connected to the onboard computer in which data processing software delivered by the linear camera and a data compression program are implemented. In addition, the angular position of this optical assembly is adjustable.
  • the optical assembly is movable relative to the table which is fixed.
  • the table to be analyzed is fixed by fixing means (132) on the upper plate (131) of a parallelepiped base (130).
  • Two slides (121, 122) are fixed on two parallel sides (111, 112) of the base (130).
  • a beam shaped U (140) is slidably mounted in the slides (121, 122).
  • the surface (142) of the beam, facing the top plate (131) of the base (130), comprises a slide (123) on which slides a set optical (144, 145).
  • the movement of the beam (140) in the slides (121, 122) and the movement of the optical assembly (144) are controlled by an on-board computer and powered by a motor.
  • the position angle of the optical assembly (144, 145) is adjustable with a large precision.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Image Input (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Making Paper Articles (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • General Factory Administration (AREA)
  • Machine Tool Sensing Apparatuses (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Claims (17)

  1. Verfahren zum Authentifizieren von Werken,
    dadurch gekennzeichnet, dass es enthält:
    zumindest einen Schritt des Scannens des Werks (1),
    einen Schritt des Verarbeitens der durch das Scannen des Werks (1) erhaltenen Daten,
    einen Schritt des Komprimierens der Daten,
    einen Schritt des Speicherns der Daten in dem Speicher eines kontaktfreien Halbleiterchipmoduls (2),
    einen Schritt des Befestigens des kontaktfreien Chipmoduls (2) an dem Werk (1).
  2. Verfahren zum Authentifizieren von Werken nach Anspruch 1, dadurch gekennzeichnet, dass der Schritt des Befestigens des kontaktfreien Chipmoduls (2) an dem Werk (1) in dem Einsetzen des kontaktfreien Chipmoduls (2) in den Rahmen (3) besteht, der das Werk (1) umgibt.
  3. Verfahren zum Authentifizieren von Werken nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Beleuchtungsvorrichtung (44, 144) sichtbare Wellen und unsichtbare Wellen abstrahlen kann.
  4. Verfahren zum Authentifizieren von Werken nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Beleuchtungsvorrichtung (44, 144) Röntgenstrahlen abstrahlen kann.
  5. Verfahren zum Authentifizieren von Werken nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Modul (2) einen Träger (202) aus einem bestimmten Material enthält, der eine erste Aufnahme (221) aufweist, die zum Aufnehmen des kontaktfreien Chips (201) bestimmt ist, so dass der Chip (201) von dem Träger (202) bedeckt ist, wenn das Modul (2) an dem Werk befestigt ist.
  6. Verfahren zum Authentifizieren von Werken nach Anspruch 5, dadurch gekennzeichnet, dass der Träger (202) eine zweite Aufnahme (222) aufweist, die zum Aufnehmen eines Wachssiegels (203) bestimmt ist, das das Modul (2) authentifiziert.
  7. Verfahren zum Authentifizieren von Werken nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass
       die durch Scannen aus dem Werk (1) gewonnenen Daten aus verschiedenen Klassen von Daten zusammengesetzt sind, wobei die Klassen zusammengesetzt sein können aus:
    einer Klasse, die eine Matrix enthält, die die Farben aller das Werk bildenden Pixel definiert,
    einer Klasse, die Informationen über die Größe des Werks enthält,
    einer Klasse, die Informationen über die Geschwindigkeit der Bewegung des Pinsels, die Signatur und die Gestik des Künstlers enthält.
  8. Verfahren zum Authentifizieren von Werken nach Anspruch 7,
    dadurch gekennzeichnet, dass
       ein Multiplikationsfaktor mit jeder Klasse von Daten verknüpft ist,
       wobei den Klassen, die Informationen über die Farbe und die Größe des Werks enthalten, ein kleinerer Multiplikationsfaktor zugewiesen ist als der Multiplikationsfaktor, der anderen Klassen zugewiesen ist.
  9. Vorrichtung, die speziell zum Durchführen des Verfahrens zum Authentifizieren von Werken konzipiert ist, dadurch gekennzeichnet, dass sie enthält:
    eine optische Baugruppe (44, 45, 144, 145),
    eine Stützplatte (31) für das Bild,
    eine Vorrichtung zum Bewegen der optischen Baugruppe in zwei zueinander senkrechten Richtungen in einer Ebene parallel zu der des Werks,
       wobei die optische Baugruppe (44, 144, 45, 145) an einem U- oder L-förmigen Träger (40, 140) angebracht ist,
       der Träger (40, 140) und/oder das Werk mit einer Relativbewegung bewegt wird, so dass die optische Baugruppe (44, 144, 45, 145) die gesamte Oberfläche des Werks scannt,
       wobei die Bewegung von dem Bordrechner gesteuert und von einem Motor angetrieben wird.
  10. Vorrichtung nach Anspruch 9, die speziell zum Durchführen des Verfahrens zum Authentifizieren von Werken konzipiert ist,
    dadurch gekennzeichnet, dass
       die Winkelstellung der optischen Baugruppe (44, 144, 45, 145) einstellbar ist,
       wobei die optische Baugruppe eine Beleuchtungsvorrichtung (44, 144) und einen Scanner (45, 145) enthält, die mit einem Bordrechner verbunden sind.
  11. Vorrichtung nach Anspruch 10, die speziell zum Durchführen des Verfahrens zum Authentifizieren von Werken konzipiert ist,
    dadurch gekennzeichnet, dass
       das Werk auf einer Stützplatte (31) befestigt ist,
       wobei die Stützplatte (31) in einem ersten Paar von Gleitführungen (23, 24) gleitet,
       das erste Paar von Gleitführungen (23, 24) so in einem zweiten Paar von Gleitführungen (21, 22) gleitet, dass durch Relativbewegung der Paare von Gleitführungen zueinander die fest an dem Träger (40) angebrachte optische Baugruppe (44, 45) die gesamte Oberfläche des Werks scannen kann.
  12. Vorrichtung nach Anspruch 10, die speziell zum Durchführen des Verfahrens zum Authentifizieren von Werken konzipiert ist,
    dadurch gekennzeichnet, dass
       die optische Baugruppe (144, 145) in einer ersten Gleitführung (123) des Trägers (140) parallel zu der Stützplatte (131) gleitet,
       wobei der Träger (140) in zumindest einer zweiten Gleitführung (112, 121) eines Sockels (130) gleitet, so dass die optische Baugruppe (144, 145) die gesamte Oberfläche des Werks scannt.
  13. Vorrichtung nach einem der Ansprüche 10 bis 12, die speziell zum Durchführen des Verfahrens zum Authentifizieren von Werken konzipiert ist, dadurch gekennzeichnet, dass der Scanner (45, 145) von einer Farbzeilenkamera mit hoher Auflösung gebildet ist.
  14. Vorrichtung nach einem der Ansprüche 10 bis 13, die speziell zum Durchführen des Verfahrens zum Authentifizieren von Werken konzipiert ist, dadurch gekennzeichnet, dass die Beleuchtungsvorrichtung (44, 144) sichtbare Wellen und unsichtbare Wellen abstrahlen kann.
  15. Vorrichtung nach einem der Ansprüche 10 bis 14, die speziell zum Durchführen des Verfahrens zum Authentifizieren von Werken konzipiert ist, dadurch gekennzeichnet, dass die Beleuchtungsvorrichtung (44, 144) Röntgenstrahlen abstrahlen kann.
  16. Kontaktfreies Chipmodul, das in dem Verfahren nach Anspruch 1 verwendet wird, dadurch gekennzeichnet, dass
       es in seinem Speicher zusätzlich zu einer Information, die die Farbe der das Werk bildenden Pixel betrifft, zumindest eine der folgenden Information enthält, die die Größe des Werks, die Geschwindigkeit der Pinselbewegung, die Signatur und die Gestik des Künstlers betreffen,
       wobei das kontaktfreie Chipmodul (2) an dem Werk (1) befestigt ist.
  17. Kontaktfreies Chipmodul, das in dem Verfahren nach Anspruch 1 oder 16 verwendet wird, dadurch gekennzeichnet, dass
       es einen Träger (202) enthält, der eine erste Aufnahme (221) aufweist, die zum Aufnehmen des kontaktfreien Chips (201) bestimmt ist, so dass der Chip (201) von dem Träger (202) bedeckt ist, wenn das Modul (2) an dem Werk befestigt ist,
       wobei das den Träger bildende Material ein polymerisierbares Harz ist, das die Verbindung des Chips (201) mit dem Bild sicherstellt.
EP99402177A 1998-09-15 1999-09-03 Verfahren zur Authentifizierung von Kunstwerken und Vorrichtung zur Durchführung des Verfahrens Expired - Lifetime EP0987669B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9811478 1998-09-15
FR9811478A FR2783333B1 (fr) 1998-09-15 1998-09-15 Procede d'authentification d'oeuvres et dispositif specialement concu pour la mise en oeuvre de ce procede

Publications (2)

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EP0987669A1 EP0987669A1 (de) 2000-03-22
EP0987669B1 true EP0987669B1 (de) 2005-01-05

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EP99402177A Expired - Lifetime EP0987669B1 (de) 1998-09-15 1999-09-03 Verfahren zur Authentifizierung von Kunstwerken und Vorrichtung zur Durchführung des Verfahrens

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EP (1) EP0987669B1 (de)
JP (1) JP2000111494A (de)
AT (1) ATE286611T1 (de)
DE (1) DE69923043D1 (de)
FR (1) FR2783333B1 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10028241A1 (de) * 2000-06-07 2001-12-13 Bundesdruckerei Gmbh Dokumentenprüfgerät
FR2811122B1 (fr) * 2000-06-28 2005-05-20 Bernard Sala Dispositif de marquage de toiles et 'toile a puce' ainsi obtenue
FR2823851B1 (fr) * 2001-04-19 2003-09-05 Jean Albert Despres Procede de verification de l'authenticite d'un objet tel qu'un tableau de peintre
US11341459B2 (en) * 2017-05-16 2022-05-24 Artentika (Pty) Ltd Digital data minutiae processing for the analysis of cultural artefacts
CN108956652B (zh) * 2018-04-04 2023-12-12 中国南方电网有限责任公司超高压输电公司曲靖局 一种电动耐张线夹和接续管压接质量探查装置
KR102377647B1 (ko) * 2020-12-01 2022-03-25 한국생산기술연구원 미술품 데이터 획득용 복합 스캔장치

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4754487A (en) * 1986-05-27 1988-06-28 Image Recall Systems, Inc. Picture storage and retrieval system for various limited storage mediums
EP0256196A1 (de) * 1986-08-13 1988-02-24 Artika International (Hong-Kong) Limited Verfahren zur Identifikation eines bestimmten Objektes und zu seiner späteren Wiedererkennung
FR2611945B1 (fr) * 1987-03-06 1991-07-12 Medina Jean Bertrand Dispositif et procede pour l'enregistrement, la conservation et la consultation limitee d'informations confidentielles relatives a un objet, et jeton pour la mise en oeuvre du procede
NL9001368A (nl) * 1990-06-15 1992-01-02 Tel Developments B V Beveiliging van voorwerpen of dokumenten.

Also Published As

Publication number Publication date
FR2783333A1 (fr) 2000-03-17
EP0987669A1 (de) 2000-03-22
ATE286611T1 (de) 2005-01-15
DE69923043D1 (de) 2005-02-10
JP2000111494A (ja) 2000-04-21
FR2783333B1 (fr) 2001-11-23

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