KR20210063215A - Apparatus for Verifying Counterfeit and falsification by Using Latent Image and Driving Method Thereof - Google Patents

Abstract

The present invention relates to a forgery/tampering inspection device using a latent image technology and a driving method thereof. A forgery/tampering inspection device using the latent image technology according to an embodiment of the present invention may comprise: a storage unit for storing data generated using a background pattern and a forgery/tampering determination object which forms line-shaped patterns spaced apart from each other at equal intervals on a latent pattern which is latent in the background pattern; and a control unit for receiving scan data of a predetermined determination object and determining, on the basis of the (already) received scan data and the stored data, whether a line shape on the latent pattern is externally developed into a line or an image in a designated forgery/tampering condition, so as to prevent forgery or tampering. Therefore, it is possible to prevent forgery/tampering through a photocopier by varying the thickness and density of a solid line.

Description

Apparatus for Verifying Counterfeit and falsification by Using Latent Image and Driving Method Thereof

The present invention relates to a forgery verification apparatus using a latent image technology and a method of driving the apparatus, and more particularly, a latent image that causes a latent image to appear when, for example, a discriminating object that cannot be discriminated by the naked eye is copied from a high-resolution color copier. It relates to a forgery verification device using technology and a driving method of the device.

With the recent development of IT technology, as the resolution and reproducibility of computer-related devices such as scanners, printers, multifunction devices, and software improve, crimes that easily copy and use banknotes, checks, various certificates, and security documents are increasing. To solve this problem, various forgery prevention dotted dots have been developed. Conventionally, methods for preventing forgery using ultraviolet ink, infrared ink, hologram, etc. have been tried, but these methods are basically using fluorescent lamps during copying. It is possible to verify the authenticity of the document, but there is no difficulty in recognizing the contents of the original. In addition, it is inevitable to increase production costs due to raw materials, labor costs, additional processes, etc. due to additional application of holograms or inks.

Accordingly, when copying banknotes, checks, various certificates, security documents, etc., the lines and dots of the original diagram, large dots and small dots, angle conversions between dotted lines and dotted lines, and long lines with dotted lines and lines or angles are converted so that it is difficult to understand the contents of the original. Counterfeiting was prevented by creating a latent image when copying with a curved line. In the case of this prior art, a method of forming a pattern using halftone dots and figures and uniform screen density is disclosed.

In this case, since the sizes of the vanishing part and the salient part are arranged differently, the larger the size difference, the better the effect of distinguishing the vanishing part and the rising part during copying. However, if the size difference is large, it is possible to visually check the original printed matter before copying. It is easy to apply, so it is not practical.

In addition, if the size difference between the background pattern and the embossing pattern is reduced to prevent such a problem, the effect of the technique is significantly lowered due to insufficient loss and embossing effects during copying. In addition to the difference in the size of the background pattern and the rising pattern, the shape itself is different, so it is easy to check whether the technology is applied to the original before copying with the naked eye, so it has a disadvantage that the practicality of the technology is lowered

Korea Patent Publication No. 1994-0006793 (April 25, 1994) Korea Patent Publication No. 1996-0007351 (May 31, 1996) Korean Patent Publication No. 2001-0070865 (July 27, 2001) Korean Patent Publication No. 10-0405828 (2003.11.04) Korean Patent Publication No. 10-0587621 (2006.05.30) Korean Patent Publication No. 10-1770984 (2017.08.18) Korean Patent Publication No. 10-2009-0053563 (2009.05.27)

An embodiment of the present invention aims to provide a forgery verification apparatus using a latent image technology that allows a latent image to appear when a discrimination target that cannot be discriminated by the naked eye is copied from a high-resolution color copier and a method of driving the device. have.

Forgery verification apparatus using latent image technology according to an embodiment of the present invention, data generated using a forgery discrimination target that forms a line pattern at equal intervals on a background pattern and a latent pattern latent in the background pattern A storage unit for storing, and receiving scan data of an arbitrary discrimination target , and based on the received scan data and the stored data, the line shape on the latent pattern emerges as a single line or image under a specified condition for forgery and modulation It includes a control unit for preventing forgery by determining whether the

The forgery verification apparatus may further include an interface unit for receiving scan data for the determination target forming a double solid line as the line-shaped pattern.

The interface unit forms the same interval, thickness, angle and concentration of the double solid lines so that visual discrimination by color difference is impossible, but different thicknesses and concentrations of the double solid lines on the background pattern and the double solid lines on the latent image pattern It is possible to receive scan data for the determination target.

The interface unit may receive scan data for the discrimination target that further forms an additional pattern to make the latent image pattern more prominent on the double solid line of the background pattern.

The interface unit may receive scan data in which the line-shaped pattern formed on the background pattern is weakly expressed or lost than the latent image pattern under the specified condition.

The forgery verification apparatus may further determine whether the forgery or forgery is based on whether the two-dimensional pattern formed on the latent image pattern is recognized.

Forgery verification method using latent image technology according to an embodiment of the present invention, data generated using a forgery discrimination target that forms a line-shaped pattern at equal intervals on a background pattern and a latent pattern latent in the background pattern The step of storing, and the step of preventing forgery by judging whether the line shape on the latent pattern appears externally as a single line or image under the specified conditions for forgery and forgery based on the scan data of an arbitrary discrimination target and the stored data include

In the forming of the pattern, a double solid line may be formed as the line-shaped pattern.

In the forming of the pattern, the distance, thickness, angle and concentration of the double solid lines are kept the same so that visual discrimination by color difference is impossible, and the double solid line on the background pattern and the double solid line on the latent image pattern are formed. Thickness and concentration can be formed differently.

In the forming of the pattern, an additional pattern for making the latent image pattern more prominent may be further formed on the double solid line of the background pattern.

In the step of preventing forgery, the line-shaped pattern formed on the background pattern may be weakly expressed or lost than the latent image pattern under the specified condition.

In the preventing of forgery, whether or not forgery may be further determined according to whether a two-dimensional pattern formed on the background pattern and the latent image pattern is recognized.

According to an embodiment of the present invention, it may be possible to prevent forgery through a copier by varying the thickness and density of the solid line.

In addition, by keeping the line spacing, thickness, angle, and concentration the same, the latent image pattern and the background pattern cannot be identified with the naked eye. When copying from a high-resolution color copier, the solid line of the background pattern is weakly expressed or disappears, and the solid line of the latent image pattern is only one. Since it is expressed like a line of the line and can be visually identified, forgery will be impossible.

1 is a view showing a forgery verification system according to an embodiment of the present invention;
2 and 3 are diagrams for explaining a discrimination target according to an embodiment of the present invention;
4 is a block diagram illustrating a detailed structure of the copying machine of FIG. 1 as a forgery verification apparatus according to an embodiment of the present invention;
5 is a view showing a forgery verification process according to an embodiment of the present invention;
6 is a flowchart illustrating a driving process of a forgery verification device according to an embodiment of the present invention;
7 and 8 are views for explaining a discrimination target according to another embodiment of the present invention, and
9 and 10 are diagrams for explaining a discrimination target according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1 is a diagram illustrating a forgery verification system according to an embodiment of the present invention, and FIGS. 2 and 3 are diagrams for explaining a discrimination target according to an embodiment of the present invention.

1, the forgery verification service system 90 according to an embodiment of the present invention is a copy machine 100, a user terminal device 110, a communication network 120 and a part of the forgery verification service device 130 or Including all, it may further include a printer for printing a pattern according to an embodiment of the present invention.

Here, "including some or all" means that a component such as the copier 100 operates in a stand alone form, or a part or all of a component such as the forgery verification service device 130 is connected to a communication network ( 120), which means that it can be configured by being integrated into a network device (eg, a wireless switching device, etc.), and will be described as including all in order to help a sufficient understanding of the invention.

The discrimination target 97 subjected to forgery discrimination according to an embodiment of the present invention may be formed by a separate printer (or printer), etc., and may be formed in various forms. It may be formed on a document, etc., or it may be formed in the form of a separate mark and attached to a product. Therefore, it will not be particularly limited to what shape the discrimination target 97 according to the embodiment of the present invention is formed. As shown in FIGS. 1 to 3 , the discrimination target 97 displays a non-table by composing a latent image pattern and a background pattern in a linear shape, more precisely, a double solid line, and at this time, the interval, thickness, angle, and concentration of the lines are the same. The latent image pattern and background pattern cannot be identified with the naked eye. Therefore, when copying from a high-resolution color copier or the like, the solid line of the background pattern is weakly expressed or lost, and the solid line of the latent image pattern is set to appear as a single line (or image). Of course, there is an anti-counterfeiting effect through the copier 100 by varying the thickness and density of the solid lines of the latent image pattern and the background pattern. The thickness of the solid line is about 0.02 ~ 0.04mm and the interval is 0.05 ~ 0.07mm, and it has more than 200 screen tone lines and 15% or less concentration. Of course, such a state may be freely changed in the embodiment of the present invention without changing the technical idea. In addition, in the embodiment of the present invention, when checking whether or not forgery is detected using a filter recognizer (eg, mobile), latent image marks (eg, text and Data of Things (DoT)) patterns may be checked on the authentic paper.

More specifically, in the discrimination target 97 according to an embodiment of the present invention, the background pattern includes a latent image pattern, wherein the latent image pattern means a latent image, that is, an image or a pattern. The latent image pattern does not have a color difference, so it is not usually visible to the eye as in FIGS. 2(a) and 3(a), but is exposed to the outside in a specific situation where, for example, radiation is performed. In the embodiment of the present invention, as can be seen in FIGS. 2 (b) and 3 (b), double solid lines are formed at equal intervals, and as in FIG. 3 (b), DoT is on the solid line of the background pattern. It may include a pattern 300 . Since the DoT pattern is formed in addition to the double solid line, it may be referred to as an additional pattern. For example, in the embodiment of the present invention, the case of FIG. 2 may be named K-DoT, and the case of FIG. 3 may be named X-DoT. On the same principle as K-DoT, X-DoT marks the background pattern and the DoT pattern with a difference in line spacing. A non-mark can be inserted by mixing both a DoT pattern and a character. A solid line with an interval of 0.05 to 0.07 mm among the regions of the DoT pattern, which is the background pattern, is weakly expressed or disappears during copying, and thus the displayed line can be expressed as a DoT pattern. A specific filter recognizer (eg, mobile) recognizes the emerging DoT pattern to determine whether it is forged or not.

In the embodiment of the present invention, double solid lines are exemplified in FIGS. 2 and 3, but since this may be a single solid line forming an equal interval or a broken line, it is difficult to express that it has the shape or form of a line. desirable. Therefore, since the formation of the discrimination target 97 can be variously changed and formed without departing from the technical idea according to the embodiment of the present invention, it will not be particularly limited to any one shape.

The copier 100 may serve as a forgery verification device according to an embodiment of the present invention together with the printer and the user terminal device 110 . Not only can they operate independently, but they can also be operated in parallel. The copier 100 may refer to a high-resolution color copier capable of forgery or falsification of documents among commercially available products rather than a general copier. As technology develops more and more, this is the reason why it is necessary to prevent forgery or falsification of genuine products by high-performance color copiers. Of course, the copier 100 according to the embodiment of the present invention may be merely a device for verifying, ie, confirming, when the discrimination target 97 is forged or forged, rather than including a technology for verifying forgery. Nevertheless, in the verification, the internal radiation conditions of the copier 100, for example, brightness when scanning a lamp, data conversion, etc., can be an important factor in developing the latent image of the discrimination target 97. Examples will not overlook this. For example, when the performance of a color copier is gradually evolving, the embodiment of the present invention may perform operations such as changing the spacing of double solid lines or changing the thickness without departing from the technical details of the present invention. will be.

In addition, the copy machine 100 downloads the related program from the forgery verification service device 130 via the communication network 120 to perform the operation according to the embodiment of the present invention, stores it therein, and then executes the present invention through it. In the example, since the same forgery verification operation may be performed, it will not be specifically limited to the above form.

The user terminal device 110 may serve as a forgery verification device according to an embodiment of the present invention together with the copier 100, and may include a wearable device such as a smart phone or a domestic S company's Galaxy*Gear. . The user terminal device 110 may include a high-resolution camera capable of photographing. The principle of reading a document through the scanner of the copier 100 is not much different from that of photographing through the user terminal device 110 through a high-resolution camera. Accordingly, even in the case of the user terminal device 110 , it is possible to verify that there is forgery, as in the copying machine 100 . For example, in the case of the above copier 100, if the latent image pattern is exposed in the output document as in FIGS. 2 (c) and (d) or 3 (c) and (d), so that forgery is impossible, In the case of the user terminal device 110, it is possible to check whether forgery or not on the screen through a dedicated app. For example, the discrimination target 97 that does not include the background pattern and the latent image pattern as in the embodiment of the present invention is to determine that the latent image is not revealed and has been forged.

The user terminal device 110 may perform the same operation as above through a dedicated app downloaded from the outside for this forgery verification, but may request the forgery verification service device 130 to verify whether the forgery or not using the app. have. Therefore, when shooting through the user terminal device 110, as in the copier 100, the solid line of the background pattern is lost, the latent image pattern is expressed as a single line, and the photographed image is provided to the forgery verification service device 130. Forgery may be verified.

The communication network 120 includes both wired and wireless communication networks. For example, a wired/wireless Internet network may be used or interlocked as the communication network 120 . Here, the wired network includes an Internet network such as a cable network or a public telephone network (PSTN), and the wireless communication network includes CDMA, WCDMA, GSM, Evolved Packet Core (EPC), Long Term Evolution (LTE), and Wibro networks. meaning to include Of course, the communication network 120 according to the embodiment of the present invention is not limited thereto, and may be used as an access network of a next-generation mobile communication system to be implemented in the future, for example, a cloud computing network under a cloud computing environment, a 5G network, and the like. For example, when the communication network 120 is a wired communication network, the AP in the communication network 120 can access a switching center of a telephone company, etc., but in the case of a wireless communication network, it accesses the SGSN or GGSN (Gateway GPRS Support Node) operated by the communication company to process data Alternatively, data may be processed by accessing various repeaters such as BTS (Base Station Transmission), NodeB, and e-NodeB.

The communication network 120 may include an AP. The AP includes a small base station, such as a femto or pico base station, which is often installed in a building. Here, the femto or pico base station is classified according to the maximum number of copiers 100 or user terminal devices 110 that can be connected to the classification of small base stations. Of course, the AP may include a short-distance communication module for performing short-distance communication such as zig-bee and Wi-Fi with the copier 100 or the user terminal device 110 . The AP may use TCP/IP or RTSP for wireless communication. Here, short-range communication includes various standards such as Bluetooth, Zigbee, infrared, UHF, and VHF, such as RF and ultra-wideband communication (UWB), in addition to Wi-Fi, as mentioned above. Accordingly, the AP extracts the location of the data packet, designates the best communication path for the extracted location, and transmits the data packet to the next device, for example, the forgery verification service device 130 along the designated communication path. The AP can share several lines in a general network environment, and includes a router, a repeater, and a repeater.

The forgery verification service device 130 may be set and operated in various ways according to the intention of the system designer. For example, the forgery verification operation may be performed by itself in the copying machine 100 or the user terminal device 110 substantially operating as a forgery verification device. This has already been explained above. However, the forgery verification service device 130 downloads an app, generates data, or manages the generated data to provide a service according to an embodiment of the present invention, and there is a verification request from the user terminal device 110 When it is set to perform verification, the verification operation may be performed. The forgery verification service device 130 may be a management server of a service operator. It may also serve to generate and provide data related to the discrimination target 97 of FIG. 1 . It is a kind of service program.

In addition, the forgery verification service device 130 may monitor the forgery operation in the copying machine 100 or the user terminal device 110 . That is, integrated management is performed. For example, it is possible to quickly cope with the situation even when the forgery event occurs by determining where the forgery event occurred, etc. where the copier 100 is located. Furthermore, the forgery verification service device 130 may perform various operations such as generating, storing, and updating data managed through the determination target 97 of FIG. 1 by including the DB 130 .

4 is a block diagram illustrating a detailed structure of the copying machine of FIG. 1 as a forgery verification apparatus according to an embodiment of the present invention.

For convenience of explanation, referring to FIG. 4 together with the copying machine of FIG. 1, the copying machine 100 according to an embodiment of the present invention is a forgery verification device, and an interface unit (or a communication interface unit, a user interface unit, a scan unit) ( 400 ), a control unit 410 , a latent image data processing unit 420 , and some or all of the storage unit 430 .

Here, “including some or all” means that some components such as the storage unit 430 are omitted, or some components such as the latent image data processing unit 420 are added to other components such as the control unit 410 . It will be described as including all in order to help a sufficient understanding of the invention as meaning that it can be integrated and configured.

The interface unit 400 is, for example, a communication interface unit that connects to the forgery verification service device 130 via the communication network 120 to install a program according to an embodiment of the present invention or to receive reference data necessary for forgery verification, etc. operation can be performed. However, in the embodiment of the present invention, it is possible to connect a storage medium such as USB to the interface unit 400 and set it to perform the operation according to the embodiment of the present invention, so it is not particularly limited to any one form. won't

In addition, the interface unit 400 includes a user interface unit, a scanning unit, a printing unit, and the like. The scanning unit may receive data for copying or scanning a document, for example. For example, when scanning in the scan unit, a lamp is driven for each scan line to sequentially illuminate, and a corresponding document is copied or scanned through a camera provided on the upper side.

The control unit 410 may store the copied or scanned data in the form of a scanned image in the storage unit 430 or transmit it to the outside, or output a copy document through the printing unit. In this process, the control unit 410 may request data processing by providing the input data to the latent image data processing unit 420 , and may be provided with data according to a result of the request to output a document.

When the scan data provided by the control unit 410 is the scan data for the discrimination target 97 as shown in FIG. 1 , the latent image data processing unit 420 sets the background pattern and the latent image pattern formed on the discrimination target 97 to the copying machine 100 . In the process of copying, distortion, more precisely, is transferred, so the transferred data is included in the scan data. In the embodiment of the present invention, for this reason, it can be expressed as 'forgery prevention using latent image and digital forensic transition.' Therefore, the latent image data processing unit 420 reflects the transferred data as it is and outputs it to the printing unit. For example, , if the scanned data is provided as RGB pixel values, the printing unit converts the RGB pixel values into a value suitable for printing, thereby performing printing.Ink or photoreceptor is implemented by the data converted by the printing unit .

It can be seen that the latent image data processing unit 420 determines the transferred data rather than performing a special operation. When the discrimination target 97 is copied or scanned, the solid line of the background pattern is weakly expressed or lost, and the solid line of the latent image pattern is expressed as a single line, which can be regarded as acquiring the appearing data and printing it as it is.

In addition, the storage unit 430 stores various information and data processed under the control of the control unit 410 . If information means a simple control command, data may mean scanned pixel data, etc., but in the embodiment of the present invention, the concept of such terms will not be particularly limited. That is, they may be mixed.

5 is a diagram illustrating a forgery verification process according to an embodiment of the present invention.

For convenience of explanation, referring to FIG. 5 together with FIG. 1 , the object 97 to determine the authenticity according to the embodiment of the present invention is, for example, when a scan operation is performed through the copier 100 or the user terminal device 110 of FIG. 1 . , a DoT pattern may emerge due to the loss of the latent image pattern ( S510 ).

To this end, the copying machine 100 or the user terminal device 110 may recognize (or include) a specific filter, that is, extract the lost DoT pattern of the latent image pattern, and thus check the extracted latent image pattern and copy It may be possible to check whether or not (S513). Here, since the filter performs a filtering operation, for example, when the latent image data is extracted by passing the transferred data through the filter, it may be expressed.

In the case of the copier 100 to check whether a copy is made, the extracted latent image pattern is output together with the output document. The latent image may be visually identified as shown in FIGS. 2(c) and (d), and FIGS. 3(c) and (d).

6 is a flowchart illustrating a driving process of the forgery verification device of FIG. 1 .

For convenience of explanation, referring to FIG. 6 together with FIG. 1 , the forgery verification apparatus according to an embodiment of the present invention includes at least one of a copier 100 , a user terminal device 110 , a printer, and a forgery verification service device 130 . means, for example, the printing machine may form a line-shaped pattern at equal intervals on the background pattern and the latent pattern latent in the background pattern (S600).

Also, for example, the copying machine 100 may prevent forgery by allowing the line shape on the latent pattern to appear as a single line or image in a specified condition to be forged (S610).

In addition to the above, the forgery verification apparatus according to the embodiment of the present invention can perform various operations, and other detailed information has been sufficiently described above, so it will be replaced with the contents.

7 and 8 are diagrams for explaining a discrimination target according to another embodiment of the present invention.

As shown in FIGS. 7 and 8 , the discrimination target 697 according to another embodiment of the present invention is an X-DoT (eg, D-DoT) in a form to which the X-DoT technology described above with reference to FIG. 3 is applied. It is a technology that double-prints D-DoT, or two-dimensional pattern code, on the latent image). At this time, only the D-DoT pattern 701 printed above can be recognized by the recognizer (eg, mobile) in the authentic copy (700, 701)), and the D-DoT is lost during copying (eg, counterfeiting and tampering) and X-DoT latent image Only the D-DoT inserted in the . Since different DoTs can be identified in the authentic copies 700 and 701 and the copy 710, it is possible to determine whether it is a forgery or not.

As can be seen in FIG. 8 , when only D-DoT is recognized by executing an app installed in a mobile device such as a smartphone from the authentic copy, it can be determined as the authentic copy 700 and 701, and the copy 710 by copying, etc. ) is recognized as a latent DoT in X-DoT, and it can be determined whether it is forged or not.

9 and 10 are diagrams for explaining a discrimination target according to another embodiment of the present invention.

As shown in FIGS. 9 and 10 , as another form to which the X-DoT technology is applied, it is a technology in which a G-DoT is double printed on an X-DoT (a latent image in which a D-DoT pattern 801 is inserted). At this time, in the authentic copy (800, 801), only the G-DoT pattern printed above can be recognized by the recognizer (mobile), and when copying (forgery. falsification), the G-DoT is lost and only the D-DoT inserted in the X-DoT latent image is recognized. is expressed Since different DoTs can be identified in the originals 800 and 801 and the copy 810, it is possible to determine whether or not it is a forgery.

Here, in G-DoT, a two-dimensional code is printed with transparent ink, and the value of the code reflected and expressed through a flash built in the terminal is recognized and then connected to the result data. It is used to determine the presence or absence of duplication or forgery, such as authenticity authentication, and the authenticity of the original, and is used to verify the result. Visible printing, which can be visually identified provided by the existing activation platform, has the disadvantage that it can be copied through optical equipment, etc., and the currently applied technology is manufactured in an invisible form and there is no physical color difference, so Provides a form that cannot be copied.

On the other hand, even though it has been described that all components constituting the embodiment of the present invention are combined or operated as one, the present invention is not necessarily limited to this embodiment. That is, within the scope of the object of the present invention, all the constituent elements may be selectively combined and operated in one or more. In addition, all of the components may be implemented as one independent hardware, but a part or all of each component is selectively combined to perform some or all functions of the combined hardware in one or a plurality of hardware program modules It may be implemented as a computer program having Codes and code segments constituting the computer program may be easily inferred by those skilled in the art of the present invention. Such a computer program is stored in a computer-readable non-transitory computer readable media, read and executed by the computer, thereby implementing an embodiment of the present invention.

Here, the non-transitory readable recording medium refers to a medium that stores data semi-permanently and can be read by a device, not a medium that stores data for a short moment, such as a register, cache, memory, etc. . Specifically, the above-described programs may be provided by being stored in a non-transitory readable recording medium such as a CD, DVD, hard disk, Blu-ray disk, USB, memory card, ROM, and the like.

In the above, preferred embodiments of the present invention have been illustrated and described, but the present invention is not limited to the specific embodiments described above, and it is common in the technical field to which the present invention pertains without departing from the gist of the present invention as claimed in the claims. Various modifications may be made by those having the knowledge of, of course, and these modifications should not be individually understood from the technical spirit or perspective of the present invention.

100: copier 110: user terminal device
120: communication network 130: forgery verification service device
400: interface unit 410: control unit
420: latent image data processing unit 430: storage unit

Claims (12)

Storing data generated using a forgery detection target that forms a line-shaped pattern at equal intervals on a background pattern and a latent pattern latent in the background pattern; And
Preventing forgery by judging whether the line shape on the latent pattern appears externally as a single line or image in a specified condition to be forged or modulated based on the scan data of an arbitrary discrimination target and the stored data;
Forgery verification method using latent image technology including The method of claim 1,
Forming the pattern comprises:
A forgery verification method using a latent image technology to form a double solid line as the line-shaped pattern. The method of claim 2,
Forming the pattern comprises:
A latent image formed by maintaining the same spacing, thickness, angle, and concentration of the double solid lines so that visual discrimination due to color difference is impossible, but having different thicknesses and concentrations of the double solid lines on the background pattern and the double solid lines on the latent image pattern Forgery verification method using technology. The method of claim 2,
Forming the pattern comprises:
A forgery verification method using a latent image technology to further form an additional pattern to make the latent image pattern more prominent on the double solid line of the background pattern. The method of claim 1,
The step of preventing the forgery,
A forgery verification method using a latent image technology in which the line-shaped pattern formed on the background pattern is weakly expressed or lost than the latent image pattern under the specified conditions. According to claim 1,
The step of preventing the forgery,
Forgery verification method using a latent image technology for further determining whether forgery or not according to whether a two-dimensional pattern formed on the background pattern and the latent image pattern is recognized. a storage unit for storing data generated using a forgery detection target that forms a line-shaped pattern at equal intervals on a background pattern and a latent pattern latent in the background pattern; and
Receives scan data of arbitrary discrimination and prevents forgery by judging whether the line shape on the latent pattern emerges as one line or image under the specified condition to be forged based on the received scan data and the stored data control unit to;
Forgery verification device using latent image technology including The method of claim 7,
Forgery and falsification verification apparatus using a latent image technology further comprising; an interface unit for receiving the scan data for the discrimination target forming a double solid line as the line-shaped pattern. The method of claim 8,
The interface unit forms the same interval, thickness, angle and concentration of the double solid lines so that visual discrimination by color difference is impossible, but different thicknesses and concentrations of the double solid lines on the background pattern and the double solid lines on the latent image pattern A forgery verification device using a latent image technology for receiving scan data for the determination target. The method of claim 8,
The interface unit, a forgery verification device using a latent image technology for receiving scan data for the discrimination target to further form an additional pattern to make the latent image pattern more prominent on the double solid line of the background pattern. The method of claim 7,
The interface unit, a forgery verification device using a latent image technology for receiving scan data in which the line-shaped pattern formed on the background pattern is weakly expressed or lost than the latent image pattern under the specified condition. 8. The method of claim 7,
The control unit, a forgery verification device using a latent image technology to further determine whether the forgery or not according to whether the recognition of the two-dimensional pattern formed on the background pattern and the latent image pattern .

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