WO2018068520A1

WO2018068520A1 - Anti-counterfeiting marker recognition method

Info

Publication number: WO2018068520A1
Application number: PCT/CN2017/087654
Authority: WO
Inventors: 季长平
Original assignee: 无锡新光印标识科技有限公司
Priority date: 2016-10-12
Filing date: 2017-06-09
Publication date: 2018-04-19
Also published as: CN106650865A; CN106650865B

Abstract

An anti-counterfeiting marker recognition method, comprising the following steps: a) selecting an anti-counterfeiting information bearer having a random texture structure as a printing area for code identifier or image and text identifier on a substrate (S1); b) generating in the printing area a code identifier or image and text identifier having randomly serrated edges (S2); c) obtaining the overlapping points of the random texture structure and randomly serrated edges as anti-counterfeiting characteristic backup information (S3). By obtaining the overlapping points of the random texture structure and randomly serrated edges as the anti-counterfeiting characteristic backup information, the clarity requirements for random texture structures is lowered, thereby making it easier to form more personalized random textures, substantially simplifying the complexity of ensuing recognition processing, and enhancing the recognition accuracy. As the texture structure and the serrated edges are randomly generated, the overlapping points of the two are more random, thereby making counterfeiting substantially more difficult and effectively preventing stolen anti-counterfeiting data from being used for counterfeiting. The process is simple and easy to be disseminated.

Description

Anti-counterfeiting mark recognition method

[0001] The present invention relates to an anti-counterfeiting method, and more particularly to an anti-counterfeiting mark identifying method.

Background technique

[0002] Texture anti-counterfeiting is an anti-counterfeiting technology in which the marking mark inherent in the packaging material itself is an anti-counterfeit identification mark.

The markings in nature are always different. Textures such as fingerprints, wood grain, stone grain, zebra pattern, ice pattern, and cracked ground are random, unique, and impossible to have two identical. Using this principle, anti-counterfeit labels are made from clear-textured packaging materials, and the marking marks of each label material are photographed, numbered, documented, and stored in the anti-counterfeiting database.

[0003] In addition, the diffusion lines of the printed code or the printed image are randomly curved micro-curves, which are random, unique, and non-reproducible. Therefore, the anti-counterfeiting identification is performed by using a diffused pattern (commonly known as a burr) or a concave diffusing pattern (commonly known as a slit) which is convex on the edge of the ink such as a code/text, and the sawtooth side 1 in FIG. 1 has a simple process, and the anti-counterfeiting data is difficult. The advantages of fraud.

technical problem

[0004] However, whether it is a natural texture structure or a random sawtooth pattern formed by printing, the actual anti-counterfeiting application has the following disadvantages: 1. The texture features may not be clear enough and lack personalization; 2. The coding/text diffusion pattern itself It is easy to produce deformation and fading, which ultimately increases the difficulty of recognition. 3. The judgment of texture similarity is complicated, and it is difficult to ensure high recognition.

Problem solution

Technical solution

[0005] The technical problem to be solved by the present invention is to provide a method for identifying an anti-counterfeit mark, which can not only reduce the requirement for the definition of random texture structure, but also facilitate the formation of a more personalized random texture, and greatly simplify the complexity of subsequent recognition processing. Degree, greatly improve the identification accuracy, so as to effectively prevent theft of anti-counterfeiting data for fraud, and the process is simple, easy to implement and promote.

[0006] The technical solution adopted by the present invention to solve the above technical problem is to provide a method for identifying an anti-counterfeit mark, comprising the following steps: a) selecting an anti-counterfeit information carrier having a random texture structure as a coding mark on a substrate a printed area of the identification or graphic identification; b) forming a coded logo or a graphic identifier having a random sawtooth edge in the printing area; C) acquiring an intersection of the random texture structure and the random sawtooth edge as the anti-counterfeiting feature filing information. In the above method for identifying the security mark, the surface of the substrate in the step a) is provided with fibers, and the fibers are applied to the surface of the substrate through the adhesive layer to form an anti-counterfeit information carrier having a random texture structure.

The above method for identifying an anti-counterfeit mark, wherein the step b) pre-printing a diffusing agent coating in the printing area, and then using inkjet printing on the diffusing agent coating to form a coded mark or graphic mark having a random sawtooth edge .

The anti-counterfeit mark identification method described above, wherein in the step b), when the jagged edge of the coded mark or the graphic mark is highly diffused to 0.03 mm, the moisture-absorbing and quick-drying agent is sprayed by the coded mark or the graphic mark in the printing area. The jagged edge on the coded logo or graphic logo is shaped.

[0010] The above-mentioned anti-counterfeit mark identification method, wherein the step c) records the number of stored overlap points and position information, and the anti-counterfeit identification 吋 first compares the coded identifier or the graphic identifier, and if the inconsistency is directly feedback, the identification conclusion is Counterfeit product; if the coded logo or the graphic identifier match, the number and position information of the overlap point are continuously compared.

[0011] The above-mentioned anti-counterfeit mark recognition method, wherein the step c) selects the number of overlapping points in the local area and the position information for recording and storage.

[0012] The above-mentioned anti-counterfeit mark identification method, wherein the step b) further comprises randomly drawing a blank line in the selected local area to cut the undried coded logo or graphic logo after printing to form a sawtooth edge, and simultaneously cutting the anti-counterfeiting The random texture structure on the information carrier forms a breakpoint, records the intersection of the random sawtooth edge formed at the cut and the random texture structure, and the breakpoint on the random texture structure adjacent to the overlap point, and records each The distance between the overlap point and the break point.

[0013] The above-mentioned anti-counterfeit mark identification method, wherein the anti-counterfeit identification 吋 first compares the coded identifier or the graphic identifier, and if the inconsistency directly feedbacks the identification conclusion as a counterfeit product; if the encoded identifier or the graphic identifier is consistent, then compares The logarithm of the overlap point and the breakpoint and whether the distance between each pair of overlap points and the breakpoint matches.

[0014] The above-mentioned anti-counterfeit mark recognition method, wherein the step c) selects at least one random sawtooth edge at the overlap point to take a magnified photograph, obtain a partial zigzag feature photo of the coded logo or the graphic identifier, and The partial sawtooth feature photo is stored as the anti-counterfeiting feature filing information.

[0015] The above-mentioned anti-counterfeit mark identification method, wherein the step c) records the number of stored overlap points and position information, and the anti-counterfeit identification 吋 first compares the coded mark or the graphic mark, and if the inconsistency is directly feedback, the identification result is Counterfeit product; if the coded identifier or the graphic identifier is consistent, continue to compare the number of overlapping points and position information. If the inconsistent feedback identification result is a counterfeit product, at least one corresponding to the encoded identifier or the graphic identifier is finally matched. Whether the features of the random sawtooth edge photo at the overlap point match.

[0016] The above-mentioned anti-counterfeit mark identification method, wherein the step c) adopts a mobile phone to capture a coded mark or a graphic mark on the substrate, obtains a physical scene photo with a partial sawtooth feature, and then uploads the physical scene photo to the computer. The anti-counterfeiting network query system performs authentication; if the coded identifier or the graphic identifier matches, the feedback preliminary identification conclusion is true, and the link of the final identification conclusion is returned to the user's mobile phone; before the link of the final identification conclusion is clicked by the user In a period of time, the computer anti-counterfeiting network query system compares the physical scene photos with the pre-recorded stored partial sawtooth feature photos, selects at least one random jagged edge at the overlapping point for similarity comparison, and waits for the user Click on the link to get the final conclusion.

Advantageous effects of the invention

Beneficial effect

[0017] Compared with the prior art, the present invention has the following beneficial effects: The anti-counterfeiting mark recognition method provided by the present invention can obtain the anti-counterfeiting feature filing information by acquiring the random texture structure and the random zigzag edge overlapping point, which can reduce the random texture structure. The requirement of sharpness is easy to manufacture to form a more personalized random texture, and greatly simplifies the complexity of subsequent recognition processing and improves the recognition accuracy. Since the texture structure and the jagged edges are randomly generated, the overlapping points of the two have greater randomness, which greatly increases the difficulty of forgery, thereby effectively preventing the stolen anti-counterfeiting data from being used for fraud, and the process is simple and easy. Implement promotion.

Brief description of the drawing

DRAWINGS

1 is a schematic diagram of a conventional two-dimensional code structure using a diffusion pattern;

2 is a schematic structural diagram of a two-dimensional code of the present invention;

3 is a schematic diagram of an anti-counterfeiting identification process of the present invention. detailed description

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

2 is a schematic diagram of a two-dimensional code structure of the present invention; and FIG. 3 is a schematic diagram of an anti-counterfeiting identification process of the present invention.

[0023] Referring to FIG. 2 and FIG. 3, the substrate 2 is printed with a two-dimensional code, and the random texture structure on the substrate 2 is fiber.

3, the two-dimensional code is covered on the fiber 3, and the sawtooth edge 1 and the fiber 3 of the two-dimensional code are partially overlapped. The method for identifying the security mark provided by the present invention comprises the following steps:

[0024] Step S1: selecting an anti-counterfeit information carrier having a random texture structure as a printing area on the substrate with a coded logo or a graphic identifier;

[0025] Step S2: forming a coded identifier or a graphic identifier having a random sawtooth edge in the printing area;

[0026] Step S3: Obtain an intersection point of the random texture structure and the random sawtooth edge as the anti-counterfeiting feature filing information; for example, record and store the number of overlapping points and position information, and the anti-counterfeiting identification first compares the coded identifier or the graphic identifier. If the inconsistency direct feedback identification conclusion is a counterfeit product; if the coded identifier or the graphic identifier match is consistent, the number and position information of the overlapping points are continuously compared.

[0027] The invention can directly adopt the inherent texture structure of the natural material as the anti-counterfeit information carrier, such as wood blocks, stones, plant stems and leaves, shells, etc. with clear texture, natural spots, or specially added in the production of substrates. A plastic, glass, ceramic or composite that produces clear, random structural textures of pigments, sundries, irregularly shaped particles or bubbles. Since the present invention does not require direct comparison of the natural texture structure, the general natural texture structure can substantially satisfy the requirements of the present invention. Preferably, the surface of the substrate in the step S1 is provided with fibers which are applied to the surface of the substrate through the adhesive layer to form an anti-counterfeit information carrier having a random texture structure.

[0028] The anti-counterfeiting mark recognition method provided by the present invention generally ensures that the random sawtooth edge formed by the printing cymbal can substantially form a clear overlapping point with the random texture structure. Preferably, the step S2 pre-prints a diffusing agent coating in the printing area, and then uses inkjet printing on the diffusing agent coating to form a coded logo or graphic logo having random sawtooth edges, and of course, letterpress printing may also be employed. Other ink printing methods such as gravure, screen printing or xerography. In order to better form the sawtooth edge, a slow-drying ink is preferred, and when the coded mark or the graphic mark has a height spread of 0.03 mm 吋, the coded mark is sprayed by spraying the moisture-sensitive quick-drying agent to the coded mark or the graphic mark in the printing area. Or the serrated edge on the graphic identifier is shaped, the quick-drying agent is hard a fatty acid glyceride, oleic acid glyceride or other glyceride, the spray quality of the quick-drying agent is 3 to 5 times the mass of the diffusing agent coating, thereby realizing a sufficient coating of the fast drying agent to the diffusing agent and the pigment. Improve the drying speed, ensure that the serrated side is quickly formed, not easy to deform, and greatly reduce the difficulty of subsequent recognition comparison.

[0029] The coded identifier used in the present invention may be a serial number, a one-dimensional barcode, a two-dimensional code, a production date, a product batch number, an anti-counterfeit digital, a promotional integral code, a redemption code, a cargo-proof code, or a product source code. For two-dimensional codes, the number of overlapping points in the overall printing area may be very large. In order to facilitate subsequent storage processing and comparison, the step S3 may select the number and location information of the overlapping points in the local area for recording and storage; for example, selecting the two-dimensional code marking area or the middle cutout as the local selected area.

[0030] In order not to affect the overall clarity of the coded logo or the logo, the present invention may select to randomly draw a blank line in the selected local area to cut the undried coded logo or graphic logo after printing to form a jagged edge.随机 cutting the random texture structure on the anti-counterfeiting information carrier to form a breakpoint, recording an intersection of the random sawtooth edge formed at the cut and the random texture structure, and a breakpoint on the random texture structure adjacent to the overlap point, and Record the distance between each pair of overlap points and breakpoints. Anti-counterfeiting identification, first compare the coded logo or graphic identifier. If the inconsistency is directly feedback, the identification result is a counterfeit product; if the coded identifier or the graphic identifier is consistent, then compare the logarithm of the overlap point and the breakpoint and each Whether the distance between a pair of overlapping points and the breakpoint matches. It is identified by logarithm to further increase the difficulty of anti-counterfeiting; peer records record the distance between each pair of two points instead of position information, which is easy to store and greatly reduce the difficulty of comparison.

[0031] In order to further improve the difficulty of forgery, the present invention may further select at least one random sawtooth edge at the overlapping point to take a magnified photograph, obtain a partial sawtooth feature photo of the coded logo or graphic identifier, and store the partial sawtooth feature photo as a security feature. Feature filing information. For the partial sawtooth feature photo, it is preferable to use a macro zoom shooting mode with an object distance of less than 3 90 mm, and the shooting magnification is 8 to 80 times, so that the stripe edge of 0.01 mm to 0.3 mm can be seen from the photograph taken. The overlap point it forms. After recording the number of overlapping points, location information, and partial zigzag feature photos, the anti-counterfeiting identification first compares the coded identifier or the graphic identifier. If the inconsistency is directly feedback, the identification result is a counterfeit product; if the coded identifier or the graphic identifier ratio For consistency, the number and position information of the overlapping points are continuously compared. If the inconsistent feedback identification result is a counterfeit product, the characteristics of the random sawtooth edge photo at the at least one overlapping point corresponding to the coded identifier or the graphic identifier are finally obtained. Whether it matches.

[0032] Taking an existing smart phone as an example, an anti-counterfeit identification file is used to capture a coded logo or graphic on a substrate by using a mobile phone. Identifying, obtaining a physical scene photo with local sawtooth features, and then uploading the physical scene photo to the computer anti-counterfeiting network query system for identification; if the coded logo or graphic identifier matches, the initial evaluation conclusion is true, and the final identification will be The link of the conclusion is returned to the user's mobile phone; in the period before the link of the final authentication conclusion is clicked by the user, the computer anti-counterfeiting network query system compares the physical scene photo with the pre-recorded stored partial sawtooth feature photo, at least Select a random sawtooth edge at the intersection to perform a similarity comparison and wait for the user to click on the link to get the final conclusion. For example, one or more overlapping points in the partial sawtooth feature photograph are randomly selected. If the height difference of the random sawtooth edges at the same overlapping point is less than the preset threshold, it is determined that the two are similar.

[0033] The anti-counterfeit mark identification method provided by the present invention, the coded mark or the graphic mark together with the anti-counterfeiting feature filing information thereon are uniformly stored, respectively identified, the process is simple, and easy to implement and popularize; the random texture structure and the random zigzag edge overlap are adopted. Point as the anti-counterfeiting feature filing information greatly simplifies the complexity of subsequent recognition processing and improves the identification accuracy. Since the texture structure and the jagged edges are randomly generated, the overlapping points of the two have greater randomness, which greatly increases the difficulty of forgery, thereby effectively preventing the stolen anti-counterfeiting data from being used for fraud.

While the invention has been described above in terms of the preferred embodiments, the invention is not intended to be limited thereto, and the invention may be modified and improved without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the claims.

Claims

Claim

[Attagurment 1] A method for identifying an anti-counterfeit mark, comprising the steps of:

a) using an anti-counterfeit information carrier with a random texture structure as a printing area on the substrate with a coded logo or graphic logo;

b) forming a coded logo or a graphic identifier having a random sawtooth edge in the printing area; c) acquiring an intersection of a random texture structure and a random sawtooth edge as an anti-counterfeiting feature filing information

[Claim 2] The micro-pattern anti-counterfeiting method according to claim 1, wherein the surface of the substrate in the step a) is provided with fibers, and the fibers are applied to the surface of the substrate through the adhesive layer. An anti-counterfeit information carrier having a random texture structure is formed.

[Claim 3] The anti-counterfeit mark identifying method according to claim 1, wherein the step b) pre-printing a diffusing agent coating in the printing area, and then using inkjet printing on the diffusing agent coating A coded logo or graphic identifier having a random sawtooth edge is formed.

[Claim 4] The anti-counterfeit mark recognition method according to claim 3, wherein in the step b), when the coded mark or the graphic mark is highly diffused, the jagged edge reaches 0.03 mm, and passes through the printing area. The coded logo or graphic logo sprays the moisture wicking agent to shape the serrated edge on the coded logo or graphic logo.

[Claim 5] The anti-counterfeiting mark identification method according to claim 1, wherein the step c) records the number of stored overlapping points and position information, and the anti-counterfeiting identification first compares the coded mark or the graphic mark. If, inconsistent, the direct feedback identification conclusion is a counterfeit product; if the coded identifier or the graphic identifier is consistent, the number and position information of the overlapping points are continuously compared.

[Claim 6] The anti-counterfeit mark recognition method according to claim 1, wherein the step c) selects the number of overlapping points and position information in the local area for recording and storage.

The method for identifying an anti-counterfeit mark according to claim 6, wherein the step b) further comprises: randomly drawing a blank line in the selected local area to perform a coded identifier or a graphic identifier that is not dried after printing. Cutting to form a serrated edge, forming a breakpoint on the random texture structure on the anti-counterfeit information carrier, recording an intersection of the random sawtooth edge formed at the cut and the random texture structure, and a random texture structure adjacent to the overlap point Breakpoints on, and record each pair The distance between the overlap and the breakpoint.

[Attachment 8] The method for identifying an anti-counterfeit mark according to claim 7, wherein the anti-counterfeiting identification first compares the coded identifier or the graphic identifier, and if the inconsistency directly reports the identification result as a counterfeit product; The graphic identifiers are aligned, then the logarithm of the overlap and breakpoints and the distance between each pair of overlaps and breakpoints are compared.

[Claim 9] The anti-counterfeit mark recognition method according to claim 1, wherein the step c) selects at least one random sawtooth edge at the overlap point to take a magnified photograph, and obtain the coded logo or the graphic identifier. The partial sawtooth feature photograph, and the partial sawtooth feature photograph is stored as the anti-counterfeiting feature filing information.

The method for identifying an anti-counterfeit mark according to claim 9, wherein the step c) records the number of stored overlapping points and position information, and the anti-counterfeiting identification first compares the encoded identifier or the graphic identifier. If the inconsistency direct feedback identification conclusion is a counterfeit product; if the coding identifier or the graphic identifier comparison is consistent, continue to compare the number of overlapping points and position information, and if the inconsistent feedback identification conclusion is a counterfeit product, finally compare the encoding Whether the features of the random sawtooth edge photo at the at least one overlap point corresponding to the logo or the graphic identifier match.

[Claim 11] The anti-counterfeit mark recognition method according to claim 10, wherein the step c) is to capture a coded logo or a graphic logo on the substrate by using a mobile phone, and obtain a physical scene photograph having a partial sawtooth feature. Then upload the physical scene photos to the computer anti-counterfeiting network query system for identification; if the coded logo or the graphic logo matches, the feedback preliminary identification conclusion is true, and the link of the final identification conclusion is returned to the user's mobile phone; The link of the conclusion is clicked by the user in the previous period. The computer anti-counterfeiting network query system compares the physical scene photo with the pre-recorded stored partial sawtooth feature photo, and selects at least one random jagged edge at the overlapping point. Perform similarity comparisons and wait for the user to click on the link to get the final conclusion.