CN102955930B - Anti-counterfeiting method and system using physical characteristics of substance to identify - Google Patents
Anti-counterfeiting method and system using physical characteristics of substance to identify Download PDFInfo
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- CN102955930B CN102955930B CN201110239817.0A CN201110239817A CN102955930B CN 102955930 B CN102955930 B CN 102955930B CN 201110239817 A CN201110239817 A CN 201110239817A CN 102955930 B CN102955930 B CN 102955930B
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/20—Testing patterns thereon
- G07D7/202—Testing patterns thereon using pattern matching
- G07D7/2033—Matching unique patterns, i.e. patterns that are unique to each individual paper
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/60—Type of objects
- G06V20/69—Microscopic objects, e.g. biological cells or cellular parts
- G06V20/698—Matching; Classification
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/80—Recognising image objects characterised by unique random patterns
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Abstract
The invention discloses an anti-counterfeiting method and an anti-counterfeiting system which are identified by utilizing the physical characteristics of a substance, wherein the substance is permeable to light; the method comprises the following steps: the method comprises the steps of predetermining the position for collecting physical characteristics on a substance to be identified, placing the substance to be identified between a light source and an optical system and an optical sensor for collecting images, and obtaining the physical characteristic images optically collected after transmission; processing the physical characteristic image, extracting physical characteristic data, and recording the physical characteristic data in a characteristic database or recording the physical characteristic data on a substance in a two-dimensional code mode; and carrying out pattern recognition with physical characteristic data recorded and stored in a characteristic database or a two-dimensional code, and judging whether the physical characteristic data is consistent or not so as to judge the authenticity of the substance. The anti-counterfeiting method and the anti-counterfeiting system which utilize the physical characteristics of the substance per se to identify can realize the image acquisition of the physical characteristics of the substance at low cost through transmission on the light-permeable substance, and realize the anti-counterfeiting identification of the authenticity of the substance after the corresponding mode identification.
Description
Technical Field
The invention relates to a physical anti-counterfeiting method and a physical anti-counterfeiting system for a substance, in particular to a method and a system for realizing anti-counterfeiting by using the physical characteristics of the substance.
Background
In the prior art, paper anti-counterfeiting or bill anti-counterfeiting is mainly achieved by adding specially controlled raw materials or special paper and strictly controlling the raw materials or related technologies, for example, fluorescent fibers are added in the paper to achieve the uniqueness of physical characteristics.
However, when the paper is additionally controlled by using a certain physical characteristic raw material or technology to realize the anti-counterfeiting of the paper, if fluorescent fibers are added, a processing process with higher requirements is needed, the requirements on the production cost and the technical level are high, the systematization requirement for realizing the anti-counterfeiting of the paper is complex, an additional adding process needs to be added to the traditional papermaking process, the process is too complex, and meanwhile, the cost of the paper is increased, and the dimension of various fibers shown in fig. 1 is in a micron order. In technical terms, in fact, since one party can produce the relevant materials, counterfeiters are likely to produce the same, with advances in technology, the uniqueness of a process is nearly impossible, and counterfeiters can obtain the relevant physical characteristic materials and techniques in other ways.
Therefore, aiming at the technical defects, the inventor adopts a mode of optically acquiring the fiber texture of the paper to realize mode identification and anti-counterfeiting, the characteristic information is naturally formed in the papermaking process, and simultaneously adopts a transmission light source to acquire the characteristic images, the characteristic images reflect the three-dimensional information of the paper, and the image information obtained by the transmission paper can effectively resist the attack of the texture of the printing paper. Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
The invention aims to provide an anti-counterfeiting method and an anti-counterfeiting system which are identified by utilizing physical characteristics of substances, and aims to search a technical means suitable for low-cost realization aiming at the technology of anti-counterfeiting by adopting the physical characteristics of the substances without additionally adding other anti-counterfeiting structures so as to realize the anti-counterfeiting identification of the substances such as paper and the like.
The technical scheme of the invention is as follows:
an anti-counterfeiting method using physical characteristics of a substance, wherein the substance is light-permeable; the method comprises the following steps:
A. the method comprises the steps of predetermining the position for collecting physical characteristics on a substance to be identified, placing the substance to be identified between a light source and an optical system and an optical sensor for collecting images, and obtaining the physical characteristic images optically collected after transmission;
B. carrying out image processing on the physical characteristic image, extracting physical characteristic data and recording the physical characteristic data to a characteristic database;
C. when the authenticity of the substance is identified, acquiring a physical characteristic image at the same position by adopting the same multiple through the optical system in the step A, and carrying out the same image data processing to extract the physical characteristic data in the image;
D. and carrying out pattern recognition with the physical characteristic data recorded and stored in the characteristic database, and judging whether the physical characteristic data is consistent or not so as to judge the authenticity of the substance.
The anti-counterfeiting method, wherein the physical features comprise texture, density, height and/or color.
The anti-counterfeiting method comprises the step of preparing a material, wherein the material is paper, a plastic film, a plastic card or a cloth.
In the anti-counterfeiting method, when the physical characteristic image is obtained in the step a, the optical system obtains the physical characteristic image by adopting a mode of magnifying a preset multiple, reducing the preset multiple or keeping the same size as a real object.
In the anti-counterfeiting method, when the physical characteristic image is acquired in the step a, the optical system adopts an indefinite magnification factor and records the magnification factor in the physical characteristic data.
In the anti-counterfeiting method, the physical characteristic data is recorded in the two-dimensional code in the step B and printed on the surface of the substance to be identified, and the data in the two-dimensional code is read in the step D to judge, compare and identify.
In the anti-counterfeiting method, the physical characteristic data is encrypted and recorded in the two-dimensional code.
An anti-counterfeiting system identified by physical characteristics of a substance, wherein the substance is light-permeable; and comprises the following steps:
a characteristic database for storing physical characteristic data in advance;
the substance to be identified is placed between the optical system and the light source; the optical system is used for positioning a substance to be detected, adjusting the substance transmission image at the position clearly, and acquiring the physical characteristic image by the optical sensor;
an image processing module for processing the physical characteristic image into physical characteristic data;
and the pattern recognition module is used for comparing whether the corresponding physical characteristic data stored in the characteristic database is consistent with the physical characteristic data generated by the image processing module or not and judging the authenticity of the substance to be detected.
The anti-counterfeiting system, wherein the physical features comprise texture, density, height and/or color; the substance is paper, plastic film, plastic card or cloth.
The anti-counterfeiting system is characterized in that a two-dimensional code for recording the physical characteristic data is further printed on the surface of the substance.
The anti-counterfeiting method and the anti-counterfeiting system which are identified by utilizing the physical characteristics of the substances provided by the invention can realize the image acquisition of the physical characteristics of the substances at low cost through transmission on the light-permeable substances, and realize the anti-counterfeiting identification of the authenticity of the substances after the corresponding mode identification.
Drawings
FIG. 1 is a schematic representation of a prior art fiber parameter metrology table.
FIG. 2 is a schematic flow chart of the anti-counterfeiting method using physical characteristics of the substance per se for identification according to the present invention.
FIG. 3 is a schematic structural diagram of an optical system in the anti-counterfeiting method using physical characteristics of a substance per se according to the present invention.
FIG. 4 is an enlarged schematic view of the paper of the anti-counterfeit method and system using physical characteristics of the material itself for identification according to the present invention.
FIG. 5 is a schematic structural diagram of an anti-counterfeiting system identified by physical characteristics of a substance according to the present invention.
Detailed Description
The following describes in detail preferred embodiments of the present invention.
The invention relates to an anti-counterfeiting method and an anti-counterfeiting system which are identified by using physical characteristics of a substance, and aims to uniquely identify the authenticity of a label by using the unique characteristics of the physical characteristics of the label made of a light-transmitting substance through a transmission optical system.
The method and the system of the invention utilize the physical characteristics of the substance, such as the texture, the density, the height and/or the color, and the like, do not need additional anti-counterfeiting materials, and carry out digital processing after identifying the physical characteristic image to form the physical characteristic data so as to realize the function of the anti-counterfeiting label. The anti-counterfeiting mode can not be cloned by methods such as fluorescent ink printing and the like, and the realization cost can be sufficiently low. The digital processing is well known to those skilled in the art, for example, after obtaining the fiber texture image, the distribution information of the fibers, the orientation, the curvature, the length, etc. of the fibers can be obtained, and these information can be extracted as the characteristic data of the image. Because the distribution of the fibers is a completely random process and is the intention of 'god', no paper with the same fiber distribution exists. For another example, if one or more of the feature information such as density, height, color, etc. is to be identified in combination, a unique identification result can be obtained, and the processed physical feature data is unique.
In the case of paper, the paper contains a large amount of plant fibers, which are randomly arranged during the production process and are difficult to be manually imitated in batches. Even with ink printing, there is not enough resolution to clone the physical features under magnification; even if there is enough printing resolution, the fiber form can be printed in limited area, because the invention adopts the transmission light, the collected image is the integration of the fiber form information of the forged paper and the printed counterfeit information, the simply printed counterfeit information is impossible to be the same as the original physical characteristic data and information of the true paper. If the texture features in a certain area can be determined on the paper in advance and the features are digitalized, the digitalized features can be used for authenticity identification.
Fig. 4 shows a physical characteristic image of the paper in the case of optical magnification. As can be seen from the physical characteristic image, the texture of the fibers is relatively clear and disordered. After the fiber image is processed by image processing and pattern recognition methods, the fiber image characteristics can be extracted and digitalized for the subsequent authenticity recognition. The processing is a common processing procedure, for example, after obtaining a fiber image, distribution information of the fiber, a trend, a curvature, a length and the like of the fiber can be obtained, and the information can be used as characteristic data of the image. Of course, many classical statistical methods such as gray level co-occurrence matrix, Hu invariant pitch, etc. or classical algorithms using image local feature description can also be used: SIFT, SURF, etc., which are commonly known in the art and will not be described herein.
The anti-counterfeiting method using the physical characteristics of the substance per se for identification mainly aims at the light-permeable substance and adopts a transmission optical acquisition mode, as shown in figures 2 and 3, the anti-counterfeiting method comprises the following steps:
firstly, predetermining the position of physical characteristic collection and a preset magnification factor which is enough to identify the physical characteristic of a substance to be identified on the substance to be identified, placing the substance to be identified between a light source and an optical system and an optical sensor for collecting an image, and acquiring the optically collected physical characteristic image after transmission; the predetermined magnification is not necessarily enlargement, and may be reduction or may be left as it is, and imaging is performed without enlargement or reduction. The acquisition of the physical characteristic image can be carried out without amplification, and the reason is that when a transmission mode is adopted, the physical characteristic image formed by light transmission is clearer, the clear physical characteristic image can be obtained without certain amplification times, compared with the image acquisition adopting a reflection irradiation mode, the cost requirement for realizing the method is very low, the requirements on an optical system and an optical sensor are greatly reduced, and the clear physical characteristic image can be formed only by improving the illuminance of a light source.
Then, carrying out digital processing on the acquired physical characteristic image, extracting physical characteristic data in the acquired physical characteristic image, and recording the physical characteristic data in a characteristic database; when the authenticity of the substance is identified, the substance is amplified by the same magnification factor through the transmission type optical system, a physical characteristic image is obtained at the same position, and the digital processing is carried out by the same characteristic extraction method, so as to obtain the physical characteristic data to be identified.
And carrying out pattern recognition comparison on the physical characteristic data to be identified and physical characteristic data prestored in a characteristic database, if consistency judgment can be obtained, judging that the substance is true, and if not, judging that the substance is false. Therefore, the anti-counterfeiting identification can be carried out on important substances such as bills, cards and even cloth, for example, collectibles, the identification does not depend on the special treatment of anti-counterfeiting technology and technology, only the identification equipment is improved, the uniqueness and the anti-counterfeiting property of identification by utilizing physical characteristics are realized, the equipment cost is practical and low in cost, and the anti-counterfeiting effect of the realized physical characteristic image is excellent.
In the anti-counterfeiting method and the anti-counterfeiting system which are identified by utilizing the physical characteristics of the substances, the substances can adopt any transparent physical carrier, such as paper, cloth, plastic films or plastic cards and other transparent or semitransparent objects, and particularly have practical significance for identifying the physical characteristics of the collected objects. The physical features in the physical feature image typically include fiber texture, density, and/or frequency, among others.
In the anti-counterfeiting method using physical characteristic recognition of the substance, a more preferable embodiment is that in the optical sensor and the optical system, a fixed magnification factor (including a reduction factor) is not adopted when the physical characteristic image is acquired, but an unfixed magnification factor is adopted, that is, the physical characteristic image is acquired according to a change factor in a factor range capable of recognizing the physical characteristic data, and the factor is recorded at the same time, so that the obtained physical characteristic data needs to be recorded with the magnification factor. Therefore, the same multiple is adopted for image acquisition and identification during identification, and the mode increases the difficulty of imitation.
In order to prevent the false proof identification when the network is not available from being carried out, the false proof method of the invention also provides an alternative false proof identification scheme when no network is available, namely, physical characteristic data after digital processing is recorded into a two-dimensional code, and the two-dimensional code is printed on the surface of a substance to be identified; in the pattern recognition, the data in the two-dimensional code is read for recognition and comparison, and naturally, in order to increase the anti-counterfeiting performance of the data, the data recorded in the two-dimensional code can be encrypted firstly. In this way, when the two-dimensional code is not networked, the authenticity of the article can be judged directly through the recording and pattern recognition of the two-dimensional code. The two-dimensional code can be understood as a database in which individual data are recorded.
The anti-counterfeiting system identified by the physical characteristics of the substance per se is provided with the following components aiming at the light-permeable anti-counterfeiting substance to be identified, as shown in figures 2 and 5: and the characteristic database is accessed into the Internet and stores physical characteristic data in advance, a plurality of characteristic extraction and identification processes of printing equipment are preset, and the identified physical characteristic data are stored in the characteristic database. Each feature extraction and printing device is provided with an optical system, an optical sensor and a light source, the substance to be identified is placed between the optical system and the light source, the optical system is used for adjusting and sharpening the transmitted image, the image can be adjusted according to a preset magnification, and the physical feature image is amplified and obtained through a preset position and the preset magnification which is enough to identify the physical feature of the substance; the optical sensor acquires the physical characteristic image with the preset magnification; an image processing module, configured to process the physical feature image into physical feature data, where the processing process is known in the prior art and is not described herein again; and the pattern recognition module is used for comparing the stored data in the characteristic database with the physical characteristic data generated by the image processing module and judging the authenticity of the substance to be detected, and if the consistency is obtained, the judgment is true, otherwise, the judgment is false.
The same optical system, optical sensor and light source are also provided in the authentication apparatus for authentication so as to perform the same image acquisition action and image processing procedure. The pattern recognition mode of the pattern recognition module can be, but is not limited to, a classical statistical method or a local feature description method (SIFT or SURF), or an SVM classifier, etc. These pattern recognition algorithms are too many classified in the prior art, and are not described in detail.
The verification equipment for identifying the authenticity can acquire data to be verified from the characteristic database in a connection mode and compare the data to be verified; the physical characteristic data to be compared can also be acquired from the two-dimensional code printed on the material surface in an off-line mode.
The anti-counterfeiting by using the texture characteristics of the substance (paper) per se has great benefits: firstly, other anti-counterfeiting materials are not used, so that the production cost can be reduced. Secondly, the use of the fiber characteristics of the paper also makes the counterfeiting cost of counterfeiters extremely high, and counterfeiters can imitate the hand feeling and the thickness of the paper, but are difficult to imitate the arrangement texture of the paper fibers. Moreover, because no other anti-counterfeiting materials are added, the possibility of counterfeiting by a counterfeiting material producer can be reduced.
In the anti-counterfeiting method and the anti-counterfeiting system which utilize the physical characteristics of the substance, a certain physical characteristic image can be formed after the preset position of a substance carrier or a label is amplified to the preset amplification factor (or reduced or the same factor).
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (5)
1. An anti-counterfeiting method using physical characteristics of a substance, wherein the substance is light-permeable; the method comprises the following steps:
A. the method comprises the steps of predetermining the position for collecting physical characteristics on a substance to be identified, placing the substance to be identified between a light source and an optical system and an optical sensor for collecting images, and obtaining the physical characteristic images optically collected after transmission;
B. performing image processing on the physical characteristic image, extracting physical characteristic data, and recording the physical characteristic data into a characteristic database or a two-dimensional code;
C. when the authenticity of the substance is identified, acquiring a physical characteristic image at the same position by adopting the same multiple through the optical system in the step A, and carrying out the same image data processing to extract the physical characteristic data in the image;
D. performing pattern recognition with physical characteristic data recorded and stored in a characteristic database or a two-dimensional code, and judging whether the physical characteristic data is consistent or not so as to judge the authenticity of the substance; the physical features include texture, density, height, and/or color; the substance is paper, a plastic film, a plastic card or a cloth sheet;
when the physical characteristic image is obtained in the step A, the optical system obtains the transmitted optical acquired physical characteristic image by adopting a mode of amplifying a preset multiple, reducing the preset multiple or keeping the multiple with the same size as a real object, and records the optical acquired physical characteristic image in the physical characteristic data;
in the optical system, an unfixed magnification factor or reduction factor is adopted when the physical characteristic image is obtained, and the factor is recorded in the physical characteristic data; the same multiple is adopted for image acquisition and identification during identification;
the physical characteristic image is used for reflecting the three-dimensional information of the substance to be identified.
2. The anti-counterfeiting method according to claim 1, wherein the physical characteristic data is further recorded in a two-dimensional code and printed on the surface of the substance to be identified in step B, and judgment comparison and identification are performed by reading the data in the two-dimensional code in step D.
3. The anti-counterfeiting method according to claim 2, wherein the physical characteristic data is further encrypted and then recorded in the two-dimensional code.
4. An anti-counterfeiting system identified by physical characteristics of a substance is characterized in that the substance is light-permeable; and comprises the following steps:
a feature database storing physical feature data in advance;
an optical system and an optical sensor, and a light source, the position of collecting the physical characteristic is predetermined on the material to be identified, the material to be identified is placed between the optical system and the light source; the optical system is used for positioning a substance to be detected, adjusting the substance transmission image at the position clearly, and acquiring the physical characteristic image by the optical sensor;
an image processing module for processing the physical characteristic image into physical characteristic data; the pattern recognition module is used for comparing whether the corresponding physical characteristic data stored in the characteristic database is consistent with the physical characteristic data generated by the image processing module or not and judging the authenticity of the substance to be detected;
the physical features include texture, density, height, and/or color; the substance is paper, a plastic film, a plastic card or a cloth sheet;
the optical system is a transmission type optical system, and when the physical characteristic image is obtained, the physical characteristic image which is obtained after transmission and is acquired by adopting a mode of amplifying a preset multiple, reducing the preset multiple or keeping the same size as a real object is obtained and recorded in the physical characteristic data;
the physical characteristic image is used for reflecting the three-dimensional information of the substance to be identified;
in the optical system, an unfixed magnification factor or reduction factor is adopted when the physical characteristic image is obtained, and the factor is recorded in the physical characteristic data; the same multiple is also adopted for image acquisition and identification during identification.
5. The anti-counterfeiting system according to claim 4, wherein a two-dimensional code recording the physical characteristic data is further printed on the surface of the substance.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110239817.0A CN102955930B (en) | 2011-08-21 | 2011-08-21 | Anti-counterfeiting method and system using physical characteristics of substance to identify |
| PCT/CN2011/082140 WO2012083769A1 (en) | 2010-12-24 | 2011-11-14 | Method and system for anti-counterfeiting through physical characteristics of substance |
| US13/924,946 US9269161B2 (en) | 2010-12-24 | 2013-06-24 | Anti-counterfeiting test method, device and system based on textures |
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| CN201110239817.0A CN102955930B (en) | 2011-08-21 | 2011-08-21 | Anti-counterfeiting method and system using physical characteristics of substance to identify |
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| CN107545440A (en) * | 2016-06-26 | 2018-01-05 | 李朝宗 | A kind of high-fidelity anti-counterfeiting technology of cigarette |
| CN107545435A (en) * | 2016-06-26 | 2018-01-05 | 李朝宗 | A kind of mobile phone of red drink heavily material directly discriminates anti-counterfeiting technology |
| CN107545439A (en) * | 2016-06-26 | 2018-01-05 | 李朝宗 | A kind of high-fidelity anti-counterfeiting technology of watermelon |
| CN107545437A (en) * | 2016-06-26 | 2018-01-05 | 李朝宗 | A kind of anti-false technology of the high-fidelity of flow goods |
| CN107545438A (en) * | 2016-06-26 | 2018-01-05 | 李朝宗 | A kind of high-fidelity anti-counterfeiting technology of brand packaging for foodstuff |
| CN106652764A (en) * | 2016-10-10 | 2017-05-10 | 宋育锋 | Double-layer anti-counterfeit label |
| CN106815731A (en) * | 2016-12-27 | 2017-06-09 | 华中科技大学 | A kind of label anti-counterfeit system and method based on SURF Image Feature Matchings |
| CN110012048B (en) * | 2018-11-22 | 2021-11-12 | 创新先进技术有限公司 | Information identification code generation method and device, electronic equipment and computer storage medium |
| CN111766254A (en) * | 2019-04-01 | 2020-10-13 | 深圳兆日科技股份有限公司 | Paper detection method and device and computer readable storage medium |
| CN111767762A (en) * | 2019-04-01 | 2020-10-13 | 深圳兆日科技股份有限公司 | Mobile terminal, method and system for controlling light emitter, and readable storage medium |
| CN113870479B (en) * | 2021-08-31 | 2023-06-13 | 中钞印制技术研究院有限公司 | Anti-counterfeit paper authentication method and device, electronic equipment and readable storage medium |
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