CN1157677C - Invisible graphics context identifying system and fabrication method thereof - Google Patents
Invisible graphics context identifying system and fabrication method thereof Download PDFInfo
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- CN1157677C CN1157677C CNB998141313A CN99814131A CN1157677C CN 1157677 C CN1157677 C CN 1157677C CN B998141313 A CNB998141313 A CN B998141313A CN 99814131 A CN99814131 A CN 99814131A CN 1157677 C CN1157677 C CN 1157677C
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Abstract
The present invention relates to an invisible figure recognizing system and a making method thereof. The method comprises the following steps: digital processing and decomposition are carried out to secret mark figures which are respectively arranged on the surfaces of a digital recognizer and a printing piece in an invisible mode; a plurality of micro lenses assembling specific focal length are distributed on the digital recognizer; when the digital recognizer is covered on the specific position of the surface of the corresponding printing piece, the secret mark figures are visible, and can generate invisible, visible, deep and light dynamic variation which is gradually and alternatively varied and alternated. A plurality of digital recognizers can correspond to the surface of one printing piece, and different secret mark figures can be visible. The invisible figure has the advantages of visual performance, convenience and difficult imitation. The invisible figure can be used for the anti-counterfeit purposes of certificates, bills, banknotes, stamps, commodities, packages, etc.
Description
Technical field
The present invention relates to a kind of false proof measure and device of picture and text, especially relate to recognition system of a kind of invisible graph and preparation method thereof.
Background technology
In recent years, people utilize various means to resist fake products, as employing laser anti-counterfeit labeling and stereo anti-fake labeling, but because of the fake producer copies out above-mentioned anti-fake label soon, finally make antifalse effect not good.Therefore, people are seeking better fidelity anti-counterfeiting technology always.
In existing anti-counterfeiting technology, it is the particular combinations of utilizing the parallel stripes of different angles, form the invisible graph printed document, utilize the striped of different angles that the small visual difference of the formed different reflectivity of light is observed invisible graph, perhaps utilize 180 degree parallel stripes grating recognizers to cover on the printed document of invisible graph, utilize the striped of recognizer and the striped mutual relationship on the printed document, produce the difference of interference stripes, manifest former invisible graph secret mark.But this invisible graph is easy to find rule and is replicated.
Summary of the invention
The purpose of this invention is to provide a kind of invisible graphics context identifying system and invisible graph method for making thereof, utilize digital four-dimensional variable technology, in same system, can be made into the invisible graph of multiple combination, the level of concealed anti-false is increased, avoid effectively being decrypted and copying; It also can be networked with the identification and the management system compatibility of computing machine, so available computer reads also available vision interpretation.
Technical scheme of the present invention is as follows: invisible graphics context identifying system comprise printed document and with the digital recognizer of its coupling, be provided with the digital dot matrix of the very high density that the total ciphertext of invisible graph that a plurality of secret mark picture and text are handled and decomposited through number constituted on a surface of described printed document, described printed document adopts transparent or semitransparent or opaque material to make; The digital dot matrix of the very high density that the total ciphertext of invisible graph that a plurality of secret mark picture and text handle and decomposite through number constituted perhaps is set respectively on positive and negative two surfaces of described printed document, and this printed document adopts transparent or semitransparent material to make.
Described digital recognizer is provided with a kind of or subregion is provided with multiple comprehensive grating, the surface of grating is roughness or smooth shape, the small eyeglass of the particular focal length of a plurality of combinations of distribution on it, that this small eyeglass is made up of convex lens or the light hole form, also can combine by the two; Small eyeglass is arranged according to the digital dot matrix of the very high density that the invisible graph branch ciphertext that a plurality of secret mark picture and text are handled and decomposited through number is constituted.
The arrangement of the small eyeglass of described comprehensive grating can be grid type, notch cuttype, undaform or specific combined.
Digital recognizer can adopt transparent or semitransparent material, as plastics or film, also can be made into hard card or soft card, and multiple secret mark picture and text also can be set around it.
Described printed document can be certificate, documentary evidence, seal material, credit card, smart card, magnetic card, computer software, disk, CD, stamp, banknote, bill, document, birth certificate, contract, licence, customs declaration, the packing of product, chinaware surface, metal surface, glass, plastic pressure forming article, timber, synthetic material or dress material.
The invisible graph method for making of invisible graphics context identifying system is as follows: a. with a plurality of pending show one's color and the secret mark picture and text with generate coded system at random and carry out picture and text cryptographic calculation coding step-by-step processing and obtain digital graphics context, cryptographic parameter in each step setting multidimensional function, before after current finishing dealing with, entering next step processing, the current password parameter is deleted; B. decompose coded system by computing more described digital graphics context is decomposed, form the branch ciphertext of a plurality of digital recognizer functions and total ciphertext of invisible graph function; C. by the high-precision optical output device above-mentioned branch ciphertext and total ciphertext are separately positioned on the surface of digital recognizer and printed document again, make its surface form the digital dot matrix of very high density.Secret mark picture and text after a plurality of decomposition can be superposeed, make look and the mutual imbibition of picture, dot matrix overlaps each other, add that the subtle change of size, shape, direction and the spacing of fundamental point constitutes the invisible graph of multiple variable, its tolerance, contrast are very big, picture and text after synthetic can't decompose again, use scanner also can't complete copy, separation and processing, thereby reach the false proof purpose of fidelity.
The present invention has following advantage compared with the prior art:
1. recognition method is directly perceived, easy, rapid, is convenient to popularize, and can use under any environment and various light source.
2. false proof kind is many, is difficult for by imitated; Because the content and the digital recognizer of invisible graph can constitute multiple combination, different digital recognizers can manifest different corresponding picture and text with same printed document surface, the concealed anti-false level is increased, picture and text after synthetic can't decompose again, make imitated person can't decode every layer invisible graph and digital recognizer simultaneously, more effectively avoid following the tracks of and copy.
3. fidelity height, the fidelity timeliness is long, with the way of changing digital recognizer or invisible graph stage by stage, can keep fidelity for a long time, and the former part of showing one's color does not change, and can keep the image of famous-brand and high-quality goods.
4. have vision interpretation and computer and read compatible function.
Description of drawings
Consulting accompanying drawing below elaborates to the present invention:
Fig. 1 is the composition synoptic diagram of invisible graphics context identifying system;
Fig. 2 arranges synoptic diagram for the small eyeglass on the digital recognizer is grid type;
Fig. 3 arranges synoptic diagram for the small eyeglass on the digital recognizer is notch cuttype;
Fig. 4 arranges synoptic diagram for the small eyeglass on the digital recognizer is undaform;
Fig. 5 arranges synoptic diagram for the small eyeglass on the digital recognizer is the particular group mould assembly;
Fig. 6 is the synoptic diagram of light hole form for the small eyeglass on the digital recognizer;
Fig. 7 is the method for making process flow diagram of invisible graphics context identifying system.
Embodiment
As shown in Figure 1, invisible graphics context identifying system comprise printed document 1 and with the digital recognizer 2 of its coupling, on the surface of printed document 1, be provided with the digital dot matrix 3 of the very high density that a plurality of secret mark picture and text are constituted by the total ciphertext of the digital invisible graph of handling; Printed document 1 adopts transparent or semitransparent or opaque material.
When the digital recognizer 2 of correspondence covers on the surface of printed document 1, human eye is observed the picture and text of printed document 1 by small eyeglass, the secret mark picture and text manifest, with observer's the variation of visual angle in 360 ° of scopes, and latent and existing, the dark and shallow alternately state of gradual change that all is in of secret mark picture and text.When different digital recognizers 2 covers on the surface of same printed document 1, can manifest different secret mark picture and text.
When printed document 1 adopted transparent or semitransparent material, printed document 1 can all be provided with digital dot matrix 3 on positive and negative two surfaces, and method to set up can adopt two-sided concora crush or roll extrusion.This moment, printed document 1 itself can show the secret mark picture and text by the refraction and the diffraction of light, when cover is gone up corresponding digital recognizer 2 again, can show other secret mark picture and text again.
Extremely shown in Figure 6 as Fig. 2, this number recognizer 2 is provided with a kind of or subregion is provided with multiple comprehensive grating, the surface of grating is roughness or smooth shape, the small eyeglass of the particular focal length of a plurality of combinations of distribution on it, this small eyeglass is made up of convex lens, or the light hole form, also can have to combine by the two; Small eyeglass is arranged according to the digital dot matrix 3 of the very high density that the invisible graph branch ciphertext that a plurality of secret mark picture and text are handled through number is constituted; The arrangement of small eyeglass can be grid type, notch cuttype, undaform, also can be specific combined, promptly be irregular alignment, as shown in Figure 5, wherein the basic configuration of eyeglass, size dimension, arrangement limit coordinate, arrangement angle or direction, density, focal length, the concavo-convex depth all can be made respective change as required.This comprehensive grating of digital recognizer 2 is different from the cylindricality grating, includes the part digital graphics context above the digital recognizer 2.Because digital recognizer 2 all can change at the aspects such as stack of the selection of material, transparency size, refractive index height, color, forms different particular combinations, so this concealed anti-false method has very high randomness, uniqueness and regurgitation.Determine that initiatively parameter and processing and manufacturing are very easy to, passive imitated, decompose parameter, to repeat processing then extremely difficult, even surface topography is the same substantially, but because the micro-deviation of each parameter, cause focus and focal length to produce skew, when using digital recognizer 2 to observe invisible graph, can find obviously that secret mark is smudgy, the TSC distortion, picture and text SOL.
Digital recognizer profile can also can be any geometric configuration as credit card; Can be hard card, also can be soft card.Hard card is easy to carry, and is convenient to check, is applicable to the plane; Soft card is applicable to curved surface.
As shown in Figure 7, the invisible graph method for making of invisible graphics context identifying system is as follows: this system comprises printed document 1 and the digital recognizer 2 that matches, with a plurality of pending show one's color and the secret mark picture and text with generate coded system at random and carry out picture and text cryptographic calculation coding step-by-step processing and obtain digital graphics context, cryptographic parameter in each step setting multidimensional function, before after current finishing dealing with, entering next step processing, with the deletion of current password parameter, guarantee top secret; Enter computing again and decompose coded system, digital graphics context is decomposed, form the branch ciphertext of a plurality of digital recognizer functions and total ciphertext of invisible graph function; By the high-precision optical output device above-mentioned branch ciphertext and total ciphertext are separately positioned on the surface of digital recognizer 2 and printed document 1, make it form high digital dot matrix; Secret mark picture and text stack after a plurality of decomposition makes the mutual imbibition of colour, and dot matrix overlaps each other, and adds the subtle change of size, shape, direction and the spacing of fundamental point, forms the invisible graph of multiple variable.Above-mentioned minute ciphertext can be expressed as follows with the relation of total ciphertext:
Coded system M=f (a) * f (b) * ... f (n)
Set again: M (a, b ... n)=f (a, b ... n) * N (a, b ... n)
＝Ma+Mb+…Mn
＝fa(Na)+fb(Nb)+…fn(Nn)
Mn divides ciphertext for the digital recognizer after decomposing
Nn is the branch cipher-text function of N item on the printed document
fa(Na)+fb(Nb)+…fn(Nn)＝f(a、b…n)×N(a、b…n)
Be that the total cipher-text function of printed document equals printed document each minute cipher-text function sum.
The method of making invisible graph on the printed document of invisible graphics context identifying system and digital recognizer is as follows:
Setting first secret mark picture and text is A, and second secret mark picture and text is B ... n secret mark picture and text are N, and it is infinitely great that n can be tending towards.
With reference to Fig. 7, secret mark picture and text A, B and the picture and text of showing one's color are carried out the number processing, input picture and text cryptographic calculation coded system is carried out encoding process earlier, entering computing decomposition coded system again classifies digital graphics context, generate digital recognizer A ' minute ciphertext, digital recognizer B ' minute ciphertext and the total ciphertext of invisible graph, export by the high-precision optical output device, A ' minute ciphertext of digital recognizer is arranged on the digital recognizer A ', B ' minute ciphertext of digital recognizer is arranged on the digital recognizer B ', and the total ciphertext of invisible graph is arranged on the printed document.When digital recognizer A ' is covered on the lip-deep ad-hoc location of printed document, can manifest dynamic secret mark picture and text A; When digital recognizer B ' is covered on the lip-deep ad-hoc location of this printed document, can manifest dynamic secret mark picture and text B.
Can the secret mark picture and text be set simultaneously at the printed document tow sides, the secret mark picture and text can be identical, also can be inequality.
When being provided with, can adopt methods such as printing, silk-screen, printing, gold stamping, embossing, burn into photoetching, radium-shine, punching press, thermoplastic, transfer printing or injection moulding.
In order to strengthen false proof hidden degree, the secret mark picture and text can also be more than two.Corresponding digital recognizer more than two, each digital recognizer can manifest different secret mark picture and text when covering on the same printed document.
This anti-counterfeiting technology can be used for I.D., employee's card, the pass, driver's license, passport, credit card, smart card, magnetic card, computer software, disk, CD, stamp, banknote, check, bill, birth certificate, contract book, licence, customs declaration, the certificate of competency, best brand of product packing etc. and needs the false proof occasion of fidelity.
The method of making pair printed document of surface band invisible graphs and digital recognizer is as follows:
In aforementioned schemes, as shown in Figure 7, printed document itself adopts transparent or semitransparent material, and at the invisible graph that is provided with respectively on positive and negative two surfaces of printed document after a plurality of secret mark picture and text decompose; Method to set up can adopt two-sided concora crush or roll extrusion.By refraction, the diffraction of light, printed document self can manifest the secret mark picture and text, is with false proof secret mark with expression; If cover is gone up corresponding digital recognizer again, can show other secret mark picture and text.Can produce with said method and to be used for many-sided seal material, also can be used for the aspects such as peplos, bottle subsides, strip of paper used for sealing of external packing, the certificate of product.
When covering on digital recognizer on the corresponding invisible graph, the secret mark picture and text that it manifests also can appliance computer automatic mode recognition system be discerned automatically, for example: the special code identification data on the digital recognizer is deposited in the computing machine, with the printed document Direct Digital scanning of scanner (being visible light, ultraviolet light, infrared light, X-ray etc.) to the band invisible graph, to wherein effectively digital the samely state special code identification data automatically to bit comparison, meet former setting, promptly be judged to be certified products automatically, on computer screen, manifest the secret mark picture and text simultaneously.
This mode also can be that a plurality of special code identification data are discerned automatically with the printed document of band invisible graph respectively, all can manifest secret mark picture and text at different levels when every grade, and decidable is certified products, thereby realizes that classification differentiates classification control.
Any design of doing according to design of the present invention and modification and preparation method thereof all belong to protection scope of the present invention.
Claims (11)
1. invisible graphics context identifying system, comprise printed document and with the digital recognizer that described printed document is complementary, it is characterized in that:
Be provided with the digital dot matrix of the four-dimensional variable technology realization of utilization of very high density on a surface of described printed document, this number dot matrix is made of the total ciphertext of invisible graph that a plurality of secret mark picture and text are handled and decomposited through number;
The digital dot matrix of the four-dimensional variable technology realization of utilization of very high density perhaps is set respectively on positive and negative two surfaces of described printed document, and this number dot matrix is made of the total ciphertext of invisible graph that a plurality of secret mark figure code alphanumerics are handled and decomposited;
Described digital recognizer is provided with a kind of or distinguishes and is provided with multiple comprehensive grating, the surface of grating is roughness or smooth shape, the small eyeglass of the particular focal length of a plurality of combinations of distribution on it, small eyeglass is arranged according to the digital lattice array of the very high density that four-dimensional variable technology realizes, this number dot matrix is made of the invisible graph branch ciphertext that a plurality of secret mark picture and text are handled and decomposited through number;
Wherein
The relation of total ciphertext of described invisible graph and invisible graph branch ciphertext can be expressed as:
Coded system M=f (a) * f (b) * ... f (n)
Set again: M (a, b ... n)=f (a, b ... n) * N (a, b ... n)
＝Ma+Mb+…Mn
＝fa(Na)+fb(Nb)+…fn(Nn)
Mn divides ciphertext for the digital recognizer after decomposing
Nn is the branch cipher-text function of N item on the printed document
fa(Na)+fb(Nb)+…fn(Nn)＝f(a、b…n)×N(a、b…n)
Be that the total cipher-text function of printed document equals printed document each minute cipher-text function sum.
2. invisible graphics context identifying system according to claim 1 is characterized in that small eyeglass in the described digital recognizer is made up of convex lens or the light hole form, also can be combined by the two.
3. invisible graphics context identifying system according to claim 1 and 2, the arrangement that it is characterized in that the small eyeglass of described comprehensive grating can be grid type, notch cuttype, undaform or specific combined.
4. invisible graphics context identifying system according to claim 1 and 2 is characterized in that described printed document adopts transparent or semitransparent material.
5. invisible graphics context identifying system according to claim 1 and 2, it is characterized in that described digital recognizer around multiple secret mark picture and text are set.
6. invisible graphics context identifying system according to claim 1 and 2 is characterized in that described digital recognizer adopts transparent or semitransparent material.
7. invisible graphics context identifying system according to claim 6 is characterized in that described transparent or semitransparent material is plastics or film.
8. invisible graphics context identifying system according to claim 1 and 2 is characterized in that described digital recognizer makes hard card or soft card.
9. the method for making of invisible graphics context identifying system is characterized in that having the following step:
A. with a plurality of pending show one's color and the secret mark picture and text with generate coded system at random and carry out picture and text cryptographic calculation coding step-by-step processing and obtain digital graphics context, cryptographic parameter in each step setting multidimensional function, before after current finishing dealing with, entering next step processing, the current password parameter is deleted;
B. decompose coded system by computing described digital graphics context is decomposed, form the branch ciphertext of a plurality of digital recognizer functions and total ciphertext of invisible graph function;
C. by the high-precision optical output device above-mentioned branch ciphertext and total ciphertext are separately positioned on the surface of described digital recognizer and printed document, make its surface form the digital dot matrix of very high density.
10. the method for making of invisible graphics context identifying system according to claim 9, the method to set up that it is characterized in that step c adopt printing, silk-screen, printing, gold stamping, embossing, burn into photoetching, radium-shine, punching press, thermoplastic, transfer printing or injection moulding.
11. the method for making of invisible graphics context identifying system according to claim 9 is characterized in that the described method that total ciphertext is arranged on the printed document of step c adopts two-sided concora crush or roll extrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB998141313A CN1157677C (en) | 1998-12-30 | 1999-12-29 | Invisible graphics context identifying system and fabrication method thereof |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98126380.1 | 1998-12-30 | ||
| CN98126380 | 1998-12-30 | ||
| CNB998141313A CN1157677C (en) | 1998-12-30 | 1999-12-29 | Invisible graphics context identifying system and fabrication method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1359503A CN1359503A (en) | 2002-07-17 |
| CN1157677C true CN1157677C (en) | 2004-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB998141313A Expired - Fee Related CN1157677C (en) | 1998-12-30 | 1999-12-29 | Invisible graphics context identifying system and fabrication method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN1157677C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100427320C (en) * | 2006-04-21 | 2008-10-22 | 中国印钞造币总公司 | Manufacturing method of metal surface multiple latent image and antifalse product made by said method |
| CN104766265A (en) * | 2015-03-09 | 2015-07-08 | 山东科技大学 | Hierarchical access safety control device and method of paper finance record |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103862899A (en) * | 2012-12-12 | 2014-06-18 | 昆山研达电脑科技有限公司 | Manufacturing method of product with gradient shading |
| CN103761555A (en) * | 2013-04-16 | 2014-04-30 | 立德高科(北京)数码科技有限责任公司 | Image anti-counterfeiting recognition method applied to motor vehicle driving licenses |
| CN110014762B (en) * | 2019-04-17 | 2021-08-17 | 深圳市柏星龙创意包装股份有限公司 | Gold stamping film and manufacturing process thereof, decoding sheet and manufacturing process thereof, and anti-counterfeiting decoding method |
-
1999
- 1999-12-29 CN CNB998141313A patent/CN1157677C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100427320C (en) * | 2006-04-21 | 2008-10-22 | 中国印钞造币总公司 | Manufacturing method of metal surface multiple latent image and antifalse product made by said method |
| CN104766265A (en) * | 2015-03-09 | 2015-07-08 | 山东科技大学 | Hierarchical access safety control device and method of paper finance record |
| CN104766265B (en) * | 2015-03-09 | 2020-04-07 | 山东科技大学 | Hierarchical access security control equipment and method for paper financial archives |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1359503A (en) | 2002-07-17 |
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