JP2000111494A - Authentication process for work of art, and device specially designed for implementation of this process - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a method for enabling anyone to recognize or authenticate an object work of art for verifying the origin by mounting a module with a non-contact-type semiconductor chip to the work of art, processing data that is obtained by scanning the work of art, and compressing the data and storing it in the memory of the module. SOLUTION: Two sets of slides 21/22 and 23/24 are arranged on a base 10 of a parallel hexahedron so that they are vertical each other. The slides 21/22 are set along end parts 11 and 12 of the base 10 and the slides 23/24 slide on them. Further, a support tray 31 is mounted so that the slides 23/24 may slide. As a result, when the slides 23/24 slide on the slides 21/22, the support tray 31 moves in the longitudinal direction of the base 10 and the support tray 31 can scan the entire surface of the base 10. A light assembly comprising a scanner 45 and a lighting device 44 is provided at an arm 42 of a beam 40 that is erected while covering the base 10, and the output data of a high- resolution color camera being provided at the scanner 45 is processed by the light assembly and is sent to an on-board computer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a method for authenticating a valuable object such as a work of art, and to a device specially constructed for implementing the method.

[0002]

BACKGROUND OF THE INVENTION There is no known prior art method that can prove the origin of a painting or art object. The only way to recognize a landlord's painting is to ask the artist and an art expert who is familiar with the artist's work. Methods of analyzing the pigments used to form the color of the painting can be used to date the painting.

[0003]

The above analysis method is time consuming and very expensive.

[0004] The purpose of the method according to the invention is to
It is to overcome the disadvantages of the prior art by proposing a method by which an object or a work of art can be recognized or authenticated or whose source can be proven. Devices specially configured to implement this method can derive large amounts of information from the picture or object being analyzed.
If you do not know the author of the painting, you can use this information to identify the author's name. Alternatively, the device can be used to help authenticate a painting when the information about the painting has already been recorded. This method is equally applicable to oil paintings and watercolors or objects.

A first object of the present invention is to provide a means for extracting a certain amount of information from a picture, identifying the picture, and storing information which is later fixed to the picture.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method for authenticating a work of art comprising a lighting device and a scanner connected to an on-board computer having data processing software, the method comprising: Scanning at least one step, processing data obtained by scanning the artwork, compressing the data, and storing the data in a memory of a module having a contactless semiconductor chip. And attaching the module having the contactless chip to the work of art.

In accordance with one aspect of the invention, the step of securing the module having the contactless chip to the artwork includes the step of securing the module having the contactless chip in a frame surrounding the artwork and / or on a canvas. Consisting of inserting

According to another feature, the scanner comprises a one-dimensional high-resolution color camera.

According to another feature, the lighting device is capable of emitting visible and invisible light, and in particular is capable of emitting X-rays.

According to another feature, a module includes a support made of a defined material having a first housing configured to include a contactless chip, wherein the module is secured to a work of art. Sometimes, the contactless chip is covered with a support.

[0011] According to another feature, the support comprises a second stamp configured to include a wax stamp for authenticating the module.
Is provided.

According to another particular feature, the material forming the support is a polymerizable resin which bonds between the chip and the picture.

According to another characteristic, the data derived from the artwork by scanning consists of various classes of data, the classes indicating the colors of all the pixels forming part of the artwork. It can be composed of a class including a matrix, a class including information regarding the size of a work of art, a class including information regarding a moving speed of a brush, and a signature and a style of an author.

According to another feature, the multiplication factor is associated with each class of data, and the class containing information on the color and size of the artwork has a smaller multiplication factor than the multiplication factor associated with the other class. , Assigned.

Another object of the present invention is to provide a device specially configured to implement this method for authenticating a work of art.

This object is achieved by the device comprising a light assembly, a painting support tray and means for moving the light assembly along two perpendicular directions in a plane parallel to the plane of the artwork. Achieved.

According to one feature of the invention, the angular position of the light assembly is adjustable, the light assembly comprising a lighting device and a scanner connected to an on-board computer.

According to another feature, the light assembly is mounted on a U-shaped or L-shaped beam. The relative movement moves the beam and / or the artwork so that the light assembly scans the entire surface of the artwork, the movement being controlled by an on-board computer and actuated by a motor.

According to another feature, the artwork is fixed to a support tray. The support tray slides on a first set of slides, the first set of slides slides on a second set of parallel slides, and the light assembly secured to the beam moves the set of slides relative to each other. Allows the entire surface of the artwork to be scanned.

According to another feature, the light assembly slides on a first slide of the beam parallel to the support tray, and the beam is at least one on the base such that the light assembly scans the entire surface of the artwork. Slide the second slide.

According to another feature, the scanner comprises a one-dimensional high-resolution color camera.

According to another feature, the lighting device is capable of emitting visible and invisible waves, especially X-rays.

A third object of the present invention is to provide a color of pixels forming a work of art, a size of the work of art, a moving speed of a paintbrush,
A module having a contactless chip is provided, wherein the module includes at least one of an information item with an author's signature and style in a memory, wherein the module having the contactless chip is fixed to a work of art.

[0024] For this purpose, the module with the contactless chip comprises a support having a first housing in which the contactless chip is placed, and when the module is fixed to a work of art, the contactless chip is provided. Is covered by a support, which is achieved by the fact that the material forming the support is a polymerizable resin that bonds between the chip and the picture.

Other features and advantages of the present invention will become more apparent from the following description when read in conjunction with the accompanying drawings.

[0026]

DETAILED DESCRIPTION OF THE INVENTION A method according to the present invention uses an optical assembly to extract information from a painting, compress the information, and place the information in a module having a contactless chip that is later secured to the back of the painting. Storing information.

The light assembly comprises a lighting device (44, 144) controlled by an on-board computer and a scanner (45, 145). Angle adjustment means are provided which allow the user to very precisely correct the orientation of the light assembly.

The lighting devices (44, 144) can emit light in the visible and invisible ranges. The user can scan the painting at different wavelengths, resulting in information on, for example, paint age, ink type or paint composition used. In addition, the double-coated model of paint is invisible to the naked eye, but the model can be viewed using X-rays.

The scanner (45, 145) comprises a one-dimensional high-resolution camera, for example a one-dimensional high-resolution camera with 5000 dots per inch and three color bars. The on-board computer automatically adjusts the focal length of the camera. By making several passes, the painting can be scanned at different angles. Therefore, in order to remove shadows and obtain a three-dimensional image of the painting, the various images obtained are superimposed on an individual pixel basis. Data processing software installed on the on-board computer processes the data obtained during the various scanning steps.

According to one particular embodiment of the invention,
These data are assigned to different classes of data. For example, the class of data may include information about the speed of movement of the brush, the signature or style of the author. A multiplication factor is assigned to each class. The authentication method according to the invention can be used first for analyzing the color of a painting and also for analyzing the style of the author. The colors of the painting fade over time. Furthermore, it is easier for a forger to duplicate colors than to duplicate a painter's style. This is why it is advantageous to assign a lower multiplication factor to classes containing information on color and image size as compared to other classes.

The data obtained by scanning the picture is compressed by a file compression program installed on the on-board computer and stored in a module having a contactless chip (2) with sufficient capacity. Then, the module having the contactless chip (2) is fixed to the back of the artwork (1).

FIGS. 1A and 1B show a module with a contactless chip (2) mounted near a frame (3) of a work of art (1), using two different embodiments. A contactless chip (201) and possibly, for example,
Wax stamp (20
A second housing (222) configured to include 3)
And a first housing (22) configured to include
Module (2) comprises a support (202) having 1). As a material for forming the support (201) of the module (2), for example, a polymerizable resin can be used. For example, using the resin, the contactless type chip (201) is placed on the canvas (4) so as to be in contact with the canvas (4).
And / or the module (2) can be fixed to the frame (3). The antenna (204) of the contactless chip (201) can be inserted or embedded in the support (202). The antenna is inserted according to a first embodiment into the weave of the canvas (FIG. 1B) and
In this case, the conductor (204) of the antenna must be slid into the weave. Alternatively, according to the second embodiment, the antenna can be bonded to the back of the canvas (FIG. 1A). The information received from the contactless chip (201) or the output from the contactless chip (201) is known by an inductive or radio frequency transmission device or any other device requiring an antenna (204). Is transmitted in the following manner.

[0033] The invention also relates to an apparatus specially configured for implementing a method for authenticating a work of art.

According to the apparatus of the first embodiment shown in FIG. 2A, the picture is moved with respect to the fixed optical device.

In this embodiment of the invention, the device (9)
Consists of a base (10) in the form of a parallelepiped in which two sets of slides (21, 22, 23, 24) are arranged perpendicular to one another. Each set of slides consists of two slides parallel to each other. Two slides of the first set of slides (21, 22) are connected to the base (10).
Along two parallel ends (11, 12).
The slides (23, 24) are set such that the slides (23, 24) of the second set of slides slide on the slides (21, 22) of the first set. Attach the support tray (31) so that it slides on the second set of slides (23, 24). By sliding on the second set of slides (23, 24), the support tray is moved transversely of the base (10). The arrow (T) shown in FIG. 2A indicates the direction in which the support tray displaces the second set of slides (23, 24). Further, as the second set of slides (23, 24) slides on the first set of slides (21, 22), the support tray (31) moves in the longitudinal direction (L) of the base. Thus, the support tray (31) can scan the entire surface of the base (10). The motor (not shown) controls the movement of the support tray (31) on the second set of slides (23, 24) and the movement of the second set of slides (23, 2).
4) Activate the movement of the upper first slide (21, 22) simultaneously. An on-board computer (not shown) controls the displacement of the support tray on the base (10) with high precision. In addition, the support tray (31) is provided with four fasteners (32) for fixing the picture to be analyzed.

The L-shaped beam (40) is connected to the base (1).
Standing over 0). The beam is fixed in the center of one of the ends (14) perpendicular to the end to which the first set of slides (21, 22) is fixed. Beam (40)
Consists of two arms. One of the two arms (4
2) is parallel to the slides (21, 22) and its length is at least equal to half the length of the base (10). The light assembly shown in FIG. 2B formed from the scanner (45) and the illuminator (44) is placed on the surface (43) of the arm (42) facing the base (10). The scanner (45) comprises a one-dimensional high-resolution color camera. The illuminator (44) can scan a wavelength range that varies from visible to invisible. The angular position of the light assembly (44, 45) can be adjusted. Further, the optical assemblies (44, 45) are connected to an on-board computer on which data processing software for processing data output from the one-dimensional camera and data compression software are installed.

According to a second embodiment of the invention shown in FIG. 3, a light assembly (1
44, 145) can be moved.

In this embodiment of the present invention, the parallelepiped base (13) is attached by the attaching means (132).
On the upper tray (131) of 0) the picture to be analyzed is fixed. The two parallel ends (1
11 and 112) are fixed to the two slides (121 and 122). The U-shaped beam (140) slides (12
1, 122) to slide. Base (13
The beam surface (142) facing the upper tray (131) of 0) comprises a slide (123) on which the light assembly (144, 145) can slide. The movement of the beam (140) on the slides (121, 122);
The movement of the light assembly (144) is controlled by an on-board computer and is activated by a motor.
Further, the angular position of the light assembly (144, 145) can be adjusted with high accuracy.

[0039] Other variations that can be modified by those skilled in the art are also within the spirit of the invention.

[Brief description of the drawings]

FIG. 1A shows a module with a contactless tip mounted near a picture frame, according to a second embodiment.

FIG. 1B illustrates a module having a contactless tip mounted near a picture frame, according to a first embodiment.

FIG. 2A shows a schematic perspective view of an apparatus specifically configured for implementing the method according to the invention.

FIG. 2B shows the underside of an optical assembly of an apparatus specially configured for implementing the method according to the invention.

FIG. 3 shows a schematic perspective view of a device according to another variant specially configured for implementing the method according to the invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Art work 2,201 Non-contact type chip 3 Frame 4 Canvas 10,130 Base 21,22 First set of slides 23,24 Second set of slides 31 Support tray 40 Beam 42 Arm 44,144 Illumination device 45, 145 Scanner 202 Support 204 Antenna 221 First housing 222 Second housing

Claims (18)

[Claims] 1. A method for authenticating a work of art, comprising: at least one step of scanning a work of art; processing data obtained by scanning the work of art; and compressing the data. Storing the data in a memory of a module having a contactless semiconductor chip; and attaching the module having the contactless chip to a work of art. 2. The art of claim 1, wherein the step of securing the module with the contactless chip to the artwork comprises inserting the module with the contactless chip into a frame surrounding the artwork. A method for authenticating goods. 3. The method for authenticating a work of art according to claim 1, wherein the lighting device is capable of emitting visible light and invisible light. 4. The method for authenticating a work of art according to claim 1, wherein the lighting device is capable of emitting X-rays. 5. A module comprising a support made of a defined material having a first housing configured to contain a contactless chip, wherein the module is secured to a work of art without contact. The method for authenticating a work of art according to claim 1, wherein the mold tip is covered with a support. 6. The method for authenticating a work of art according to claim 5, wherein the support comprises a second housing configured to include a wax stamp for authenticating the module. 7. The data derived from the artwork by scanning comprises data of various classes, a class comprising a matrix indicating the colors of all pixels forming part of the artwork. The method for authenticating a work of art according to claim 1, comprising a class containing information on the size of the work, a class containing information on the speed of movement of the brush, and the signature and style of the author. 8. The multiplication factor associated with each class of data, wherein the class containing information about the color and size of the artwork is assigned a smaller multiplication factor than the multiplication factor associated with the other class. 7. A method for authenticating a work of art according to 7. 9. The art of claim 1, comprising a light assembly, a painting support tray, and means for moving the light assembly along two perpendicular directions in a plane parallel to the plane of the artwork. An apparatus specially configured to implement a method for authenticating an article. 10. The apparatus according to claim 9, wherein the angular position of the light assembly is adjustable, the light assembly comprising a lighting device and a scanner connected to the on-board computer. 11. The light assembly is mounted on a U-shaped or L-shaped beam, and the beam and / or the artwork is moved by relative movement such that the light assembly scans the entire surface of the artwork. The apparatus of claim 9 controlled by an on-board computer and operated by a motor. 12. The work of art is secured to a support tray, wherein the support tray slides on a first set of slides, the first set of slides slides on a second set of slides, and the slide sets are relative to each other. 12. The apparatus according to claim 11, wherein the movement allows the light assembly fixed to the beam to scan the entire surface of the artwork. 13. The light assembly slides on a first slide in a beam parallel to the support tray and the beam is moved over at least one second slide on a base such that the light assembly scans the entire surface of the artwork. The device according to claim 11, which slides. 14. The apparatus according to claim 10, wherein the scanner comprises a one-dimensional high-resolution color camera. 15. The device according to claim 10, wherein the lighting device is capable of emitting visible and invisible waves. 16. The device according to claim 10, wherein the lighting device is capable of emitting X-rays. 17. A memory including at least one of information of a color of a pixel forming a work of art, a size of the work of art, a moving speed of a paintbrush, a signature and a style of an author in a memory, and fixed to the work of art. A module having the contactless chip according to claim 1. 18. A contactless chip, comprising: a support having a first housing in which the contactless chip is placed, wherein the contactless chip is covered with the support when the module is fixed to the work of art.
The module having a contactless chip according to claim 17, wherein the material forming the support is a polymerizable resin that bonds between the contactless chip and the picture.