KR102163121B1 - Apparatus for Verifying Counterfeit and falsification by Using Latent Image and Driving Method Thereof - Google Patents

Abstract

The present invention relates to a counterfeit and falsification verification device using a latent image technology and to a driving method of the device. According to an embodiment of the present invention, the counterfeit and falsification verification device using a latent image technology comprises: a storage unit which stores data generated using a background pattern and a counterfeit and falsification detection target which forms a line-shaped pattern at equal intervals on a latent pattern latent in the background pattern; and a control unit which prevents the counterfeit and falsification by determining whether a line shape on the latent pattern appears to the outside as one line or image under a specified counterfeit and falsification condition based on scan data previously received by receiving the scan data of an arbitrary determination target and the stored data.

Description

Falsification verification device using latent image technology and its driving method {Apparatus for Verifying Counterfeit and falsification by Using Latent Image and Driving Method Thereof}

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

With the recent development of IT technology, crimes using by easily copying bank notes, checks, various certificates, and security documents are increasing as the resolution and reproducibility of computer-related devices such as scanners, printers, multifunction devices, and software are improved. In order to solve this problem, various forgery prevention halftone dots have been developed, and conventionally, a method of preventing forgery and alteration using ultraviolet ink, infrared ink, or hologram has been attempted, but these methods are basically used using fluorescent lamps during copying. It is possible to confirm the authenticity of the product, 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, and additional processes due to additional application of holograms or ink.

Therefore, when copying banknotes, checks, various certificates, security documents, etc., to make it difficult to grasp the contents of the original, the lines and dots of the original diagram, the large and small dots, the angle conversion of the dotted line and the dotted line, the dotted line and the line or the angle are converted. Counterfeiting was prevented by revealing the latent image when copying in a curved line. In the case of such a prior art, a method of forming a pattern using halftone dots and figures and uniformizing the screen density is disclosed.

In this case, because the size of the missing part and the outstanding part are arranged differently, the larger the size difference, the better the effect of distinguishing the disappeared part and the outstanding part during copying. However, if the size difference is large, it is possible to visually check the original print before copying. Applicability is poor because it is easy to understand

In addition, in order to prevent such a problem, if the difference in size between the background pattern and the emergence pattern is small, the effect of the technology is significantly lowered due to insufficient effect of disappearance and appearance during copying. In addition, since the shape itself is different in addition to the difference in size between the background pattern and the manifest pattern, it is also possible to easily check whether the technology is applied or not in the original print before copying, thereby reducing the practicality of the technology.

Korean Patent Publication No. 1994-0006793 (1994.04.25) Korean Patent Publication No. 1996-0007351 (1996.05.31) Korean Patent Publication No. 2001-0070865 (2001.07.27) Korean Registered Patent Publication No. 10-0405828 (2003.11.04) Korean Registered Patent Publication No. 10-0587621 (2006.05.30) Korean Registered Patent Publication No. 10-1770984 (2017.08.18) Korean Patent Publication No. 10-2009-0053563 (2009.05.27)

An embodiment of the present invention is to provide a forgery and alteration verification device using a latent image technology and a driving method of the device that allows a latent image to appear when a discrimination object in which color difference is not discriminated by the naked eye is copied from a high-resolution color copier. have.

The forgery and alteration verification apparatus using the latent image technology according to an embodiment of the present invention includes data generated by using a forgery determination object forming a line-shaped pattern at equal intervals on a background pattern and a latent pattern latent in the background pattern. Based on the received scan data and the stored data by receiving the scan data of the storage unit to store and the random discrimination target, the line shape of the latent pattern appears to the outside as a single line or image under a designated condition that is forged or altered. It includes a control unit that determines whether or not to prevent forgery.

The forgery and alteration verification apparatus may further include an interface unit configured to receive scan data for the determination object forming a double solid line as the line-shaped pattern.

The interface unit has the same spacing, thickness, angle, and density of the double solid line so that it is impossible to visually discriminate by color difference, but the thickness and density of the double solid line on the background pattern and the double solid line on the latent image pattern are formed differently. Scan data for the object to be determined may be received.

The interface unit may receive scan data for the object to be determined further forming an additional pattern to further reveal the latent image pattern on a double solid line of the background pattern.

The interface unit may receive scan data in which the linear pattern formed on the background pattern is weaker than the latent image pattern under the specified condition or is lost.

The forgery and alteration verification device may further determine whether or not the two-dimensional pattern formed on the latent image pattern is recognized.

In the forgery verification method using the latent image technology according to an embodiment of the present invention, data generated by using a forgery determination object forming a line-shaped pattern at equal intervals on a background pattern and a latent pattern latent in the background pattern Storing, and preventing forgery by determining whether the shape of the line on the latent pattern appears to the outside as a single line or image under a designated condition that is forged or altered based on the scanned data of the object to be determined and the stored data. do.

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 density of the double solid lines are kept the same so that visual discrimination by color difference is not possible, but the double solid line on the background pattern and the double solid line on the latent image pattern are The thickness and concentration can be formed differently.

In the forming of the pattern, an additional pattern may be further formed so that the latent image pattern is further exposed on the double solid line of the background pattern.

In the step of preventing forgery and alteration, the line-shaped pattern formed on the background pattern may be weaker than the latent image pattern or disappear under the specified condition.

The step of preventing forgery and alteration may further determine whether or not the background pattern and the two-dimensional pattern formed on the latent image pattern are recognized.

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

In addition, by maintaining the same spacing, thickness, angle, and density of the lines, the latent image pattern and the background pattern cannot be identified with the naked eye, and when copied from a high-resolution color copier, the solid line of the background pattern is weakly expressed or lost, and the solid line of the latent image pattern is one. As it is expressed like a line of and appears to be visually discriminated, forgery or alteration will be impossible.

1 is a view showing a forgery and alteration verification system according to an embodiment of the present invention;
2 and 3 are diagrams for explaining a determination object according to an embodiment of the present invention;
Figure 4 is a block diagram illustrating a detailed structure of the copier of Figure 1 as a forgery verification device according to an embodiment of the present invention;
5 is a diagram 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 determination object according to another embodiment of the present invention, and
9 and 10 are diagrams for explaining a determination object according to another embodiment of the present invention.

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

1 is a diagram showing a forgery verification system according to an exemplary embodiment of the present invention, and FIGS. 2 and 3 are diagrams for explaining a determination object according to an exemplary embodiment of the present invention.

As shown in FIG. 1, the forgery and alteration verification service system 90 according to the embodiment of the present invention includes a copy machine 100, a user terminal device 110, a communication network 120, and a part of the forgery and alteration verification service device 130, or It includes all, and may further include a printer for printing a pattern according to an embodiment of the present invention.

Here, "including some or all" means that components such as the copy machine 100 operate in a stand alone form, or some or all of the components such as the forgery and alteration verification service device 130 are a communication network ( 120), which can be integrated and configured in 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 determination object 97 subjected to forgery determination according to an embodiment of the present invention may be formed by a separate printer (or printer) or the like, and may be formed in various forms. It may be formed in a document or the like, but may be formed in a separate mark form and attached to the product. Therefore, there will be no particular limitation on the shape of the discrimination object 97 according to the embodiment of the present invention. As shown in Figs. 1 to 3, the discrimination target 97 displays a secret by configuring the latent image pattern and the background pattern in a line shape, more precisely, a double solid line, and at this time, the interval, thickness, angle and concentration of the lines are the same. So that the latent image pattern and background pattern are not visible to the naked eye. Therefore, when copying from a high-resolution color copier, the solid line of the background pattern is weakly expressed or disappeared, and the solid line of the latent image pattern is set to be expressed as a single line (or image). Of course, there is an effect of preventing counterfeiting 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, the interval is 0.05 ~ 0.07mm, and it has a screen tone player of 200 or more and a concentration of 15% or less. Of course, in the embodiment of the present invention, such a state may be changed as much as possible without changing the technical idea. In addition, according to an embodiment of the present invention, when checking for counterfeiting using a filter recognizer (eg, mobile), a latent image secret table (eg, characters and Data of Things (DoT)) patterns can be identified on the authentic paper.

More specifically, in the discrimination object 97 according to an embodiment of the present invention, the background pattern includes a latent image pattern, where the latent image pattern means a latent image, that is, an image or pattern. Since there is no color difference, the latent image pattern is not normally visible to the eye as shown in FIGS. 2A and 3A, but takes a form that is exposed to the outside in a specific situation in which, for example, copying occurs. In an embodiment of the present invention, as shown in Figs. 2(b) and 3(b), double solid lines are formed at equal intervals, and as shown in Fig. 3(b), the solid lines of the background pattern have DoT. It may also include a pattern 300. Since the DoT pattern is additionally formed on 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 referred to as K-DoT, and the case of FIG. 3 may be referred to as X-DoT. X-DoT uses the same principle as K-DoT and displays a secret table between the background pattern and the DoT pattern with the difference in line spacing. The secret table can be inserted by mixing two types of DoT patterns and characters. Among the areas of the DoT pattern, which is a background pattern, a solid line with a spacing of 0.05 ~ 0.07mm is weakly expressed or disappeared upon copying, and thus the emerged line can be expressed as a DoT pattern. A specific filter recognizer (eg, mobile) recognizes the displayed DoT pattern to determine whether it is forged or not.

In the embodiment of the present invention, a double solid line is illustrated in Figs. 2 and 3, but since this may be a single solid line at equal intervals or a broken line, it is expressed as having a shape or shape of a line. desirable. Therefore, since the formation of the object to be determined 97 may be variously changed and formed without departing from the technical idea according to the embodiment of the present invention, it will not be specifically limited to any one form.

The copier 100 may serve as a forgery verification device according to an embodiment of the present invention together with a printer and a user terminal device 110. As well as independent movements, it may be possible to operate in parallel. The copier 100 may refer to a high-resolution color copier capable of forgery or alteration of documents among products on the market rather than a general copier. As the technology develops more and more, it can be said that this is the reason why it is necessary to prevent forgery or alteration of genuine products by high-performance color copiers. Of course, the copier 100 according to an embodiment of the present invention may be merely a device that verifies, that is, confirms, when the object 97 is forged, rather than including a technology for verifying forgery and alteration. Nevertheless, in the verification, the internal copy condition of the copier 100 is, for example, brightness, data conversion, etc. when scanning a lamp can be an important factor in expressing a latent image of the object to be identified 97. In the embodiment, this will not be overlooked. For example, when the performance of a color copier is increasingly evolving, the embodiments of the present invention may perform operations such as changing the spacing of the double solid lines or changing the thickness without departing from the technical matters of the present invention. will be.

In addition, the copier 100 downloads a related program from the forgery and alteration verification service device 130 via the communication network 120 in order to perform the operation according to the embodiment of the present invention, stores it therein, and implements 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, together with the copy machine 100, may serve as a forgery verification device according to an embodiment of the present invention, and may include a smartphone or a wearable device such as 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 taken through the user terminal device 110 through a high-resolution camera. Therefore, in the case of the user terminal device 110, as in the copier 100, it is possible to verify that there is forgery or alteration. For example, in the case of the copier 100 above, if the latent image pattern is exposed on 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 the screen has been forged or altered through a dedicated app. For example, the discrimination object 97 that does not include the background pattern and the latent image pattern as in the embodiment of the present invention is determined to be forged and altered because the latent image is not revealed.

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

The communication network 120 includes all wired and wireless communication networks. For example, as the communication network 120, a wired or wireless Internet network may be used or interlocked. 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. It is meant 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 for a next-generation mobile communication system to be implemented in the future, for example, a cloud computing network or a 5G network under a cloud computing environment. For example, when the communication network 120 is a wired communication network, the AP in the communication network 120 can access the switching center of the telephone office, but in the case of a wireless communication network, it accesses SGSN or GGSN (Gateway GPRS Support Node) operated by the communication company to process data. Alternatively, data can 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 that is frequently installed in a building. Here, the femto or pico base station is classified according to the maximum number of units that can be connected to the copier 100 or the user terminal device 110 according to the classification of the small base station. Of course, the AP may include a short-range communication module for performing short-range communication such as the copy machine 100 or the user terminal device 110 with Zig-bee and Wi-Fi. The AP can use TCP/IP or RTSP for wireless communication. Here, short-range communication includes various standards such as RF and ultra wideband communication (UWB) such as Bluetooth, ZigBee, infrared, UHF and VHF 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 transfers the data packet to the next device, for example, the forgery verification service device 130 along the designated communication path. APs can share multiple lines in a general network environment, and include routers, repeaters, and repeaters.

The forgery and alteration verification service apparatus 130 may be set and operated in various ways according to the intention of the system designer. For example, the forgery and alteration verification operation may be performed by itself in the copier 100 or the user terminal device 110 that substantially operates as a forgery verification device. This has already been explained above. However, the forgery and alteration verification service device 130 downloads an app, generates data, or manages the generated data in order to provide a service according to an embodiment of the present invention, and there is a request for verification from the user terminal device 110. When it is set to perform verification, the verification operation can be performed. The forgery verification service device 130 may be a management server of a service operator. It may also play a role of generating and providing data related to the determination object 97 of FIG. 1. It is to provide a kind of service program.

In addition, the forgery and alteration verification service device 130 may monitor the forgery and alteration operation of the copier 100 or the user terminal device 110. In other words, it performs integrated management. For example, it is possible to quickly cope with the situation even in the event of a forgery or forgery event by determining where the copier 100 is located. Further, the forgery and alteration verification service apparatus 130 may perform various operations such as generating, storing, and updating data managed through the determination object 97 of FIG. 1 by including the DB 130.

4 is a block diagram illustrating a detailed structure of the copier 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 copier of FIG. 1, the copier 100 according to an embodiment of the present invention is a forgery and alteration verification device, and includes an interface unit (or a communication interface unit, a user interface unit, a scanning unit) ( 400), a control unit 410, a latent image data processing unit 420, and a part 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 included in 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 to mean something that can be integrated and configured.

The interface unit 400, for example, as a communication interface unit, 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 receive reference data necessary for forgery verification, etc. Can perform the operation of. However, in the embodiment of the present invention, it is possible to connect a storage medium such as USB to the interface unit 400 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, and a printing unit. Data for copying or scanning a document may be received through the scanning unit. For example, when scanning in the scanning unit, the lamp is driven for each scan line and sequentially illuminated, and the document is copied or scanned through a camera provided on the upper side.

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

When the scan data provided by the control unit 410 is the scan data for the determination object 97 as shown in FIG. 1, the latent image data processing unit 420 includes a background pattern and a latent image pattern formed on the determination object 97 in the copier 100 Distortion in the copying process, more precisely, is transferred, so that the transferred data is included in the scan data. In the embodiment of the present invention, for this reason, it can be expressed as “prevention of forgery and alteration using latent image and digital forensic transfer.” Therefore, the latent image data processing unit 420 reflects the transferred data as it is and outputs it to the printing unit. , If the scanned data is provided as a pixel value of RGB, the printing unit may convert the pixel value of RGB to a value suitable for printing and perform printing through the converted data in the printing unit to implement ink or photoreceptor. .

It can be seen that the latent image data processing unit 420 determines the transferred data rather than performing a special operation. When copying or scanning the identification object 97, the solid line of the background pattern is weakly expressed or disappeared, and the solid line of the latent image pattern is expressed as a single line, and the displayed data is acquired and printed as it is.

In addition, the storage unit 430 stores various types of information and data processed under the control of the controller 410. If the information refers to a simple control command, the data may refer to scanned pixel data or the like, but in an embodiment of the present invention, the concept of such terms will not be particularly limited. That is, they can be used interchangeably.

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

For convenience of explanation, referring to FIG. 5 together with FIG. 1, when a scan operation is performed, for example, through the copy machine 100 or the user terminal device 110 of FIG. 1, the identification object 97 of the original according to the embodiment of the present invention , DoT pattern may be revealed by the loss of the latent image pattern (S510).

To this end, the copying machine 100 or the user terminal device 110 can recognize (or include) a specific filter, in other words, can extract the missing DoT pattern of the latent image pattern, and thus confirm the extracted latent image pattern and make a 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 can be expressed.

In the case of the copier 100 to check whether a copy is present, the extracted latent image pattern is also output to the output document. The latent image may be visually discriminated as in (c) and (d) of FIG. 2 and (c) and (d) of FIG. 3.

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

Referring to FIG. 6 together with FIG. 1 for convenience of explanation, the forgery and alteration 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. For example, the printing machine may form a line-shaped pattern with equal intervals on the background pattern and the latent pattern latent in the background pattern (S600).

In addition, for example, the copier 100 may prevent forgery and alteration by allowing the line shape of a latent pattern to appear as a single line or image to the outside under a designated condition to be forged or altered (S610).

In addition to the above, the forgery and alteration verification apparatus according to an embodiment of the present invention can perform various operations, and other details have been sufficiently described above, and thus the contents will be substituted.

7 and 8 are views for explaining a determination object according to another embodiment of the present invention.

7 and 8, the determination object 697 according to another embodiment of the present invention is X-DoT (e.g., D-DoT) in a form to which the X-DoT technology described in FIG. 3 is applied. It is a technology that double-prints a D-DoT, that is, a two-dimensional pattern code, on a latent image with a pattern inserted. At this time, in the original (700, 701)), only the D-DoT pattern 701 printed above can be recognized by the recognizer (e.g., mobile), and when copying (e.g., forgery and alteration), the D-DoT is lost and the X-DoT latent image Only the D-DoT inserted in is expressed. Different DoTs can be identified in the original (700, 701) and the copy (710), so that it is possible to determine whether or not forged.

As can be seen in FIG. 8, when only D-DoT is recognized by executing an app installed on a mobile such as a smartphone from the original, it can be determined as the original (700, 701), and a copy (710) by copying or the like ) Is the latent image DoT in the X-DoT and can be determined whether it is forged.

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

9 and 10, in another form to which the X-DoT technology is applied, a G-DoT is double-printed on an X-DoT (a latent image in which the D-DoT pattern 801 is inserted). At this time, in the original (800, 801), only the G-DoT pattern printed above can be recognized by the recognizer (mobile), and when copying (forgery, alteration), the G-DoT is lost, and only the D-DoT inserted in the latent X-DoT image. Manifested. Different DoTs can be identified in the original (800, 801) and the copy (810), so that it is possible to determine whether or not forged.

Here, the G-DoT prints the 2D code with transparent ink, recognizes the value of the code reflected and expressed through the flash embedded in the terminal, and connects the result data. This is used to determine the presence or absence of duplication or forgery, such as genuine product authentication, and the authenticity of the original, and is used to verify the result. Visible printing provided by the existing genuine product certification platform has the disadvantage that it can be reproduced through optical equipment, and the current applied technology is manufactured in an invisible form, and there is no physical color difference, so it is possible to use optical equipment. It provides a form that cannot be reproduced.

On the other hand, even if all the constituent elements constituting an embodiment of the present invention are described as being combined into one or operating in combination, the present invention is not necessarily limited to this embodiment. That is, within the scope of the object of the present invention, all of the constituent elements may be selectively combined and operated in one or more. In addition, although all the components may be implemented as one independent hardware, a program module that performs some or all functions combined in one or more hardware by selectively combining some or all of the components. 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 non-transitory computer readable media that can be read by a computer and is read and executed by a computer, thereby implementing an embodiment of the present invention.

Here, the non-transitory readable recording medium is not a medium that stores data for a short moment, such as a register, cache, memory, etc., but a medium that stores data semi-permanently and can be read by a device. . 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, or 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 is generally used in the technical field to which the present invention pertains without departing from the gist of the present invention claimed in the claims. Various modifications are possible by those skilled in the art of course, and these modifications should not be individually understood from the technical idea 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 determination object forming a line pattern at equal intervals on a background pattern and a latent image pattern latent in the background pattern; And
Preventing forgery by determining whether the shape of the line on the latent image pattern appears to the outside as a single line or image under a designated condition that is forged or altered based on the scan data of an object to be determined and the stored data.
Receiving the scan data from a user terminal device that executes an app and photographs the object to be determined by a high-resolution camera; And
The step of transmitting whether there is forgery or alteration to the user terminal device; further comprising,
The step of forming the pattern,
A double solid line is formed as the line-shaped pattern, and a line-shaped pattern is not included between the single double solid line forming the equal interval and the adjacent double solid line,
It is formed by maintaining the same distance, thickness, angle, and density of the double solid line so that it is impossible to discriminate with the naked eye by color difference, but the thickness and density of the double solid line on the background pattern and the double solid line on the latent pattern are formed differently,
The step of forming the pattern,
The background pattern and the latent image pattern are connected to each other on a single double solid line, and the thickness of the double solid line of the latent image pattern is formed to be thinner than the thickness of the double solid line of the background pattern,
The step of preventing the forgery and alteration,
A forgery and alteration verification method using a latent image technology in which, when latent image data is extracted by passing the scan data through a filter, it is determined that the extracted latent image data is exposed as the line or image. delete delete The method of claim 1,
The step of forming the pattern,
A forgery and alteration verification method using a latent image technique for further forming an additional pattern to further reveal the latent image pattern on a double solid line of the background pattern. The method of claim 1,
The step of preventing the forgery and alteration,
A forgery and alteration verification method using a latent image technique in which the linear pattern formed on the background pattern is weaker than the latent image pattern or disappears under the specified condition. The method of claim 1,
The step of preventing the forgery and alteration,
A forgery and alteration verification method using a latent image technology for further determining whether or not the background pattern and the two-dimensional pattern formed on the latent image pattern are recognized. A storage unit for storing data generated using a forgery determination object forming a line-shaped pattern at equal intervals on a background pattern and a latent image pattern latent in the background pattern; And
Receiving the scan data of the object to be discriminated, based on the received scan data and the stored data, it is determined whether the line shape on the latent image pattern appears to the outside as a single line or image under a designated condition to be forged and altered to prevent forgery Including;
Receives scan data for the determination object forming a double solid line as the line-shaped pattern from a user terminal device that executes the app and photographs the determination object by a high-resolution camera, and determines whether there is forgery or alteration to the user terminal device. It further includes; an interface unit for transmitting,
The interface unit,
As the line-shaped pattern, a double solid line is formed, and a line-shaped pattern is not included between one double solid line forming the equal interval and the adjacent double solid line, and the gap between the double solid line so that visual discrimination by color difference is impossible. , Thickness, angle, and concentration are kept the same, but the thickness and density of the double solid line on the background pattern and the double solid line on the latent image pattern are formed differently, and the background pattern and the latent image pattern are formed on one double solid line. It is formed by connecting, and receives the scan data for the object to be determined, the thickness of the double solid line of the latent image pattern is formed thinner than the thickness of the double solid line of the background pattern,
The control unit,
A forgery and modulation verification device using a latent image technology that determines that the extracted latent image data is exposed to the outside as the line or image when the received scan data is passed through a filter to extract the latent image data. delete delete The method of claim 7,
A forgery and modulation verification apparatus using a latent image technology for receiving scan data for the object to be determined further forming an additional pattern for further exposing the latent image pattern on the double solid line of the interface unit and the background pattern. The method of claim 7,
The interface unit is a forgery verification device using a latent image technology for receiving scan data in which the linear pattern formed on the background pattern is weaker than the latent image pattern under the specified condition. The method of claim 7,
The control unit further determines whether or not the background pattern and the two-dimensional pattern formed on the latent image pattern are recognized, using a latent image technology.

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