CN102890787B - A kind of constructive method of two-dimensional bar code - Google Patents

Abstract

The present invention relates to a kind of constructive method of two-dimensional bar code in field of information processing, it is characterised in that：Low precision printer or ink-jet printer can be used, while on printed medium or commodity by the form or endowed Laser marker of printing, and do not destroy printing image and commodity it is attractive in appearance, while again have security feature.Using 2D bar code technology proposed by the present invention, can be by the printing content of tax reciept, with including word, pattern, the form of shading enters row information embedment, can do not destroy tax reciept nominal value it is attractive in appearance in the case of, realize the information embedment and the automatic reading of tax reciept of tax reciept content, and containment tax evasion phenomenon appearance.Can also realize the anti-copying of tax reciept simultaneously, and tax reciept genuine/counterfeit discriminating so that, thoroughly solve bill and forge, distort, the problems such as commodity are faked socially is spread, promote the harmonious development of society.

Description

A kind of constructive method of two-dimensional bar code

Technical field

The invention belongs to field of information processing, especially a kind of constructive method of two-dimensional bar code.

Background technology

With the fast development of China's economy, the applicating and exploitation of barcode technology is false proof by tax reciept, and commodity counterfeit prevention etc. is each The concern in bar field.

Bar code is that the postgraduate for managing subject by the Ha Fu universities in the U.S. invents earliest, and conception originally is；Customer is led to Cross inventory and select commodity required for oneself, delivery of cargo window will be taken with the card got with punched-card machine corresponding to the commodity Mouthful, so that it may obtain required commodity.Shop can be by this card amendment quantity in stock, or is used as the application that expense is asked for customer It is single.It is but too cheap without being popularized because of labour at that time as so advanced logistics means.Nowadays in the whole world On the commodity displayed in each supermarket, shop, bar code is ubiquitous.See that bar code is accounted for because of the lines of each record information on surface According to very big area, therefore recognition is easier, in fact just as the area that occupies of this bar code is larger, not only influences commodity That packs is attractive in appearance, and being additionally, since needs more special optical system, therefore is also that recognizer cost is difficult the root reduced.

Into the later stage of the eighties, due to jewel, semiconductor, the particular/special requirement of medicine and machinery industry is, it is necessary in print Realize that the information of more Large Copacity is described on brush media, the particularly application of bar code brings huge receipts to enterprise Benefit, people concentrate sight the research and development for having pointed to two-dimensional bar code.At this moment a series of motion of two-dimensional bar codes is fallen over each other to come out of steamer.Just It is still to have the pass of entitled " generation method of message code and message code " (JP 2011-134211) to Japan in 2011 It is disclosed in the patent of two-dimensional bar code.But two-dimensional bar code conventional at present is not broken through technically compared with bar code The progress of property.Still tightly with the square representative information " 1 " of black, and with the square representative information " 0 " of white, it is still desirable to specially Printing space, it is impossible to be embedded to information using image is printed.Particularly, two-dimensional bar code brings damage to printing the attractive in appearance of image Evil, this be make us always puzzled main cause.It is exactly on remote read, due to needing to focus, therefore also one It is straight to there is reading speed slowly, the problem of precision is low.

In the later stage nineties, people start to consider to play sound on printed matter, it is desirable to have bigger information to describe ability Code exploitation.Whole strength have been concentrated to propose with entitled " code printing equipment and its by applicable in Japanese Olympus Code print media " (Patent 8-208196) is a large amount of patent applications of representative.The motion is proposed with the larger point in four summits As datum mark, the connection of several two-dimensional bar code modules can be carried out, therefore voice data can directly be remembered with this bar code State.But this two-dimensional bar code, except the size of each dot matrix is less than ordinary two dimensional bar code, and two-dimensional bar code can be carried out Module connection is outer, little with the difference of ordinary two dimensional bar code.This code was once expected to have very big economic benefit with answering With prospect, but eventually because needing to carry out the scanning of larger area during recognition, its operational extreme difference could not be realized finally original Expected value and come to an end.

Since 2000, the technology of two-dimensional bar code occurs in that the progress advanced by leaps and bounds.For a dot matrix, by common The information of the single bit of bar code is described, and the information for having developed into many bits is described.By needing to occupy the common of independent space Two-dimensional bar code, which has been developed into, need not occupy separate space, directly be embedded to information in printing image.Sweden in this area Saturating (Anoto) companies of A Nu have applied for patent (the special table 2003- of entitled " being applied to optical reading symbolism paper " 511761), the patent proposes a dot matrix is placed on four positions of imaginary centres, four information can be represented, this is The blank that many bit informations are described.But, the patent is only limited in imaginary centres this narrow scopes, and only Only consider the coordinate value of the two-dimensional space of description paper delivery medium, and the description of code information can not be realized.In opening for this patent Dagger-axe Reed (Grid) company for giving Japan has also been proposed entitled " data inputting method based on dot pattern " (W2004/ 084125).The patent is proposed on four summits of a given small rectangle, four benchmark dot matrix is laid, with this four On the basis of the imaginary centres that benchmark dot matrix is formed, an information dot matrix is placed on eight positions of imaginary centres, can table Show eight information.This company thought at that time be using this four summits invention core, therefore by the name of company top Point (Grid) this word, however, the motion is limited to the imaginary centres that are formed by four apex reference points battle array, this is narrow In the range of.An information dot matrix will describe inadequate science in efficiency, also corresponding to four apex reference point battle arrays in information in fact It is to say that four apex reference points battle array might not have and there is meaning.

Half-tone screen code patent is topic with the half-tone screen code control method of a large amount of record datas " can on paper " in the meantime (CN1598873), except for printing net-point, in the case where not changing the gray scale system of site, by the difference for changing site Shape, diverse location, different directions, centralization and decentralization etc. can describe many bit informations.The patent, is to be buried on printed medium Enter information and provide comprehensively theoretical and method.The information that A Nutou (Anoto) company of such as above-mentioned Sweden is proposed is described Phenomenon, can essentially be construed to provide same color, the dot matrix of formed objects is arranged in one according to same intervals Shading, in the case where not changing the size of dot matrix, by the position for changing dot matrix, so that it may describe many bit informations.Using point The diverse location of battle array describes why information obtains such concern, just as it can realize maximum by minimum dot matrix Information record, therefore so shading with information is simultaneously it is also contemplated that screen characteristic, it is tied after with printing picture registration Really, minimum can be accomplished to the influence for printing image, that is to say, that such dot matrix way is suitable for the information for printing image Embedment.

The theoretical foundation of half-tone screen code is exactly, by using screen characteristic, to realize in printing image after embedment information, no Influence the effect of picture quality.But, in the printing of low precision, such as printing of below 200dpi precision, each dot matrix is The size not visible more than the naked eyes that Ruili criterion is calculated, in this case, it is impossible to by screen characteristic, how to realize attractive in appearance Information embedment effectHow while information is embedded to, antifalse effect can be realized againThis will be that present patent application to be solved The problem of.

The content of the invention

It is an object of the invention to the deficiency of the presence of the constructive method for above-mentioned traditional two-dimensional bar code, propose using low The printer print image of precision, or when burning till image with Laser marker, can be embedded in printed medium or directly on commodity While bulk information, but do not destroy printing image or commodity it is attractive in appearance, while again have security feature.

The present invention solves its technical problem and takes following technical scheme to realize：

The present invention proposes a kind of constructive method of two-dimensional bar code, it is characterised in that：

(1) two-dimensional bar code is, in the case where keeping the principle of the original shape of word as far as possible, information to be embedded in literary glyph 's；Information is embedded in the form of constituting lace pattern；In the form of shading；With information record module or information record module Combination record information including at least one form constitute；

(2) the information description module for constituting two-dimensional bar code is by recording many bits including the different directional spredings with dot matrix The combination of a dot matrix in the full combination of the Quick Response Code of information；Pass through the two of many bit informations of the different graphic recording of information dot matrix Tie up the combination of a dot matrix during code is combined entirely；Combined entirely with the Quick Response Code of the scattered recorded information of dot matrix by the concentration of dot matrix In a dot matrix combination；Result according to different positions and phase-modulation records complete group of the Quick Response Code of many bit informations The combination of a dot matrix in conjunction；Pass through the Quick Response Code of many bit informations of phase modulation recording of the different physics of information dot matrix The combination of a dot matrix in full combination；Dot matrix is distributed the combination of a dot matrix during relatively uniform Quick Response Code is combined entirely；Generation The combination of a dot matrix in the maximum full combination of the minimum Quick Response Code of i.e. similar degree of intersymbol Hamming distances；Code distribution area The combination of a dot matrix in the full combination of maximized Quick Response Code；The combination of one dot matrix of the minimum of code distribution area exists Interior geometric distribution, or at least one of the distribution form of physics describe information.

The invention also provides a kind of recognition methods of two-dimensional bar code, it is characterised in that：

(1) have infrared ray, it is seen that the light source of at least two spectral characteristics including light, ultraviolet as lighting source, And corresponding imaging sensor is facing to the two-dimensional bar code being printed on print media, implement to read the behaviour of two-dimensional bar code Make；

(2) what is read imaging sensor is with readable dot matrix, and another in the case of a certain spectrum Just there is the dot matrix for the property distinguished, they are presented orthogonality each other in the case of kind of spectrum, or semi-orthogonal two-dimensional bar code Image, carries out the binary conversion treatment of image；Calculate the position of each dot matrix；

(3) by two-dimensional bar code can record information each information dot matrix information record rule, including according to application The combination of the dot matrix of the Quick Response Code that needs entirely in combination, geometric distribution, at least one of the distribution of physics information The code value that the rule of description is identified.

Moreover, two-dimensional bar code dot matrix be by being formed containing carbon printing ink in the case of, can pass through on the surface of two-dimensional bar code Printing, affixes one's seal, and a kind of form including laser irradiation marking overlaps another including carbon-free ink, R, G, B color spaces Color can not be converted directly into the image that a kind of ink including C, M, Y, the color of K color spaces is formed.

Moreover, above-mentioned including carbon-free ink, R, G, the color of B color spaces can not be converted directly into C, M, Y, K face The image that a kind of ink including the color of the colour space is formed can be calculated if under the image conditions of latticed form by encrypting Method, with being combined for two-dimensional bar code.

Moreover, described geometric dot matrix distribution refers to, the dot matrix distribution of two-dimensional bar code is constituted, is by its information dot matrix The presence or absence of, the difference of the position of information dot matrix, the difference in the direction of information dot matrix, the difference of the shape of information dot matrix, information point The two-dimensional strip that the geometric characteristic of at least one form including the difference of the quantity of battle array, the result of dot matrix combination is formed Code.

Moreover, the dot matrix distribution of described physics refers to：The distribution of the information dot matrix of two-dimensional bar code is constituted, is by information The difference of the modulation system of dot matrix, the difference of the result of the phase-modulation of information dot matrix, the difference of the direction of propagation of information dot matrix, Including the difference of the Mechanics Vector of information dot matrix, the difference of the frequency of information dot matrix distribution, the physics of at least one form Characteristic formation two-dimensional bar code.

Moreover, the view data of two-dimensional bar code is the vector data format by including character library form, image data format, Ink jet numbering machine or digital printer private data format are sent in ink jet numbering machine, Laser marker, digital printer.

Moreover, the image of two-dimensional bar code is formed by including the direct print form of computer, computer master making form is empty Intend print form, cover printing form, character library form directly generates printed data and is installed to ink jet numbering machine, digital printer, swash What at least one of the equipment of light imprinter form was realized.

Moreover, two-dimensional bar code is to pass through for the information embedment method of image, include the replacement means of image bit map, image What any one means including the means of overall gray level difference, the means of shading were realized.

Advantages and positive effects of the present invention are：

The present invention proposes a kind of constructive method of two-dimensional bar code, and the printer of low precision can be used in this method, in printing While printing image, by various patterns, word embedment bulk information makes printing image attractive in appearance, while can also make embedment Information will not be replicated, and realize false proof effect.

Brief description of the drawings

Fig. 1 is the flow chart that machine beats tax reciept system；

Fig. 2 is a kind of flow chart of the recognition methods of two-dimensional bar code；

Fig. 3 is the schematic diagram that many bit informations are recorded by the different directional spredings of information dot matrix；

Fig. 4 is the schematic diagram by many bit informations of the different graphic recording of information dot matrix；

Fig. 5 is the schematic diagram by concentrating the information that site and scattered site are constituted to describe module；

Fig. 6 is the schematic diagram that many bit informations are recorded according to the result of different positions and phase-modulation；

Fig. 7 is the schematic diagram of many bit informations of phase modulation recording by the different physics of information dot matrix；

Fig. 8 is the schematic diagram that many bit informations are recorded by diverse location distribution and phase-modulation result；

Fig. 9 is the dot matrix distribution schematic diagram that module is described by the combination configuration information of dot matrix；

Figure 10 is the dot matrix distribution schematic diagram that another combination configuration information by dot matrix describes module；

Figure 11 is to realize false proof schematic diagram using RGB and the CMYK color that can not be converted；

Figure 12 is the addition camouflage color dot matrix in two-dimensional bar code, the schematic diagram of camouflage color mark；

Figure 13 is the schematic diagram of the bill for having two-dimensional bar code with 600dpi press printings；

Figure 14 is the schematic diagram of the bill for having two-dimensional bar code with 200dpi press printings；

Figure 15 is the schematic diagram that camouflage color dot matrix is inserted in the space of two-dimensional bar code dot matrix；

Figure 16 is that ordinary two dimensional bar code can also add the schematic diagram of camouflage color dot matrix；

Figure 17 is the schematic diagram of the composition of the two-dimensional bar code in the case of two kinds of different spectrum；

Figure 18 is the schematic diagram for all representing bill customized information with two-dimensional bar code；

Figure 19 is etc. that the information of quantity dot matrix distribution describes the schematic diagram of principle；

Figure 20 be using etc. quantity dot matrix constitute information describe module schematic diagram；

Figure 21 is the form of expression schematic diagram of the bitmap of coloured image；

Figure 22 is the schematic diagram of the two-dimensional bar code constituted with written form；

Figure 23 is the application schematic diagram of the two-dimensional bar code in the form of word；

Figure 24 is with the application schematic diagram of the two-dimensional bar code of lace pattern form；

Figure 25 is with the application schematic diagram of the two-dimensional bar code of shading form；

Figure 26 is the endowed schematic diagram that two-dimensional bar code is realized using Laser marker；

Figure 27 is the schematic diagram for being embedded to information in normal image with two-dimensional bar code；

Figure 28 is the schematic diagram that two-dimensional bar code has encryption property；

Figure 29 is the schematic diagram regardless of cloth on reference position by benchmark dot matrix；

Figure 30 is the schematic diagram that the information for hiding reference dot matrix describes module.

Figure 31 is a kind of schematic diagram of the method for laser beam marking.

In figure：

301 be a site

302 be an information dot matrix in site

303 be another information dot matrix in site

501 be the information dot matrix of AM screens

502 be the information dot matrix of FM screens

601 be a site

602 be the information dot matrix in site

701 be a site

702 be an information dot matrix in site

800 be the dot pattern of a two-dimensional bar code

801-804 is information dot matrix

805-809 is positioning datum dot matrix

900 be to combine the two-dimensional bar code realized by dot matrix

901 represent the dot matrix of information " 1 "

902 represent the dot matrix of information " 0 "

903 represent positioning datum dot matrix

1001 represent perpendicular positioning dot matrix

1002 represent the interval of perpendicular positioning dot matrix

1003 represent horizontal location dot matrix

1004 represent the interval of horizontal location dot matrix

1005 represent information dot matrix

1201 be the sample ticket for the bill anti-counterfeit realized using two-dimensional bar code

1202 be two-dimensional bar code

1203 be camouflage color dot matrix

1204 be that camouflage color is marked

1501 be a site of two-dimensional bar code

1502 be an information dot matrix of two-dimensional bar code

1503 be a camouflage color dot matrix of two-dimensional bar code

1601 be the two-dimensional bar code with camouflage color dot matrix

1602 be the point for representing information " 1 "

1603 be camouflage color point

1701 be information record dot matrix

Dot matrix on the basis of 1702

2001 represent perpendicular positioning dot matrix

2002 represent the interval of perpendicular positioning dot matrix

2003 represent horizontal location dot matrix

2004 represent the interval of horizontal location dot matrix

2005 represent 2*2 cell

2006 represent an information dot matrix in 2*2 cell

2201 be the information description module of 7*9 dot matrix

2202 be also the information description module of 7*9 dot matrix

2203 be the information description module of 7*17 dot matrix

2204 be the information description module of 7*7 dot matrix

2205 be the information description module of 9*11 dot matrix

2206 be the information description module of 9*7 dot matrix

2207 be the information description module of 9*7 dot matrix

2208 be the information description module of 5*7 dot matrix

2209 be the information description module of 7*7 dot matrix

2210 be the information description module of 11*7 dot matrix

2211 be the information description module of 9*7 dot matrix

2212 be the information description module of 11*9 dot matrix

2901 be benchmark dot matrix of the actual distribution on vertical reference position

2902 be the benchmark dot matrix not being distributed on reference position

2903 be the directional reference dot matrix that information describes module

2904 be benchmark dot matrix of the actual distribution on horizontal reference position

2905 be the benchmark dot matrix not being distributed on reference position

2906 be information dot matrix

3001,3004 and 3007 be that information describes the overall coordinate basis dot matrix of module

3002,3003,3006 and 3008 be the benchmark dot matrix occurred in hiding form

3009,3010,3011,3012 be information dot matrix

Embodiment

The embodiment of the present invention is further described below in conjunction with accompanying drawing, but embodiment of the present invention is illustrative , rather than it is limited.

Below in present embodiment is introduced, described dot matrix is the least unit for constituting two-dimensional bar code, is by several Printing points aggregation is formed, and printing points are the least units that can be printed by printing equipment,.

The definition of heretofore described two-dimensional bar code：It is that can describe information and the calculating with certain decorating feature Machine encoding of graphs.

Information describes the definition of module：It is the part that the information of two-dimensional bar code is described, a general two-dimensional bar code is Describe what module was constituted by several information.When two-dimensional bar code, which comprises only an information, describes module, two-dimensional bar code is equal to Information describes module.

The definition of information dot matrix：Dot matrix for describing information.

Position the definition of dot matrix：Demarcate the direction of the position of information dot matrix, the order of information dot matrix, and two-dimensional bar code Dot matrix.

The definition of the full combination of dot matrix：In the region that a given information is described, horizontal n segmentation can be carried out, with Vertical m segmentation, so as to constitute n*m cell, if the size of cell size for needed for the information dot matrix of a bit, then The full set for being combined as the full combination that K is arranged in n*m cell of dot matrix,

Here,

K₁₁, k₁₂..., k_1n

K=k₂₁, k₂₂..., k_2n

……

K_n1, k_n2..., k_nm

The definition of the combination of dot matrix：According to fixed purpose, one of combination in the full composite set of dot matrix Small set.

The definition of capacity of decomposition：The recognizable lattice dimensions of the minimum of two-dimensional bar code.

Embodiments of the present invention are described in detail below.

The generating process of the two-dimensional bar code of the present invention is introduced so that machine beats tax reciept system as an example first, Fig. 1 is that machine beats tax reciept system The flow chart of system.As shown in the figure：For the printing of two-dimensional bar code, and laser beam marking in existing system, can be realized, select here With the method for emulation printing, i.e., an emulation print routine with the printing function of two-dimensional bar code is installed in terminal, as Operationally, the driver of emulation printing may be selected when needing printing tax reciept in user to independent tax reciept print system.In selection Emulate after print driver, two-dimensional bar code emulates the program of printing portion, bill images, two are read from emulation print driver The program for tieing up the reading data division of bar code reads the data of ticket contents, the embedment message part of two-dimensional bar code from hard disk Program is according to such as character and graphic specified in advance, pattern, lace or burelage etc., the tax that a upper program is read Ticket data is transformed into each information description module that may make up two-dimensional bar code, while each information description module is respectively filled in into institute In such as character and graphic specified, pattern, lace or burelage, then the example that will be embedded with specified by tax reciept content information Such as character and graphic, pattern, lace or burelage are arranged on the position specified by tax reciept image, are beaten finally by emulation Tax reciept image with two-dimensional bar code is sent to printer and printed by the program of print part.

Here, the information description module for constituting two-dimensional bar code is in including geometric distribution, or the distribution of physics At least one form describes information.

The printing of tax reciept be by laser printing, ink jet printing, stylus printing, thermal transfer, it is any including thermal printing What a kind of printing form was realized.

In the authentication for commodity, two-dimensional bar code can be directly marked on commodity with laser, carrying out tax In ticket printing, it can will represent that the two-dimensional bar code of the variable information of tax reciept is printed with lithographic press.Carrying out cigarette bag anti-counterfeit printing In, the two-dimensional bar code for representing false proof variable information can be printed with intaglio press., can be by antifalsification label printing is carried out Represent the two-dimensional bar code resin plate or adagio press printing of the variable information of label anti-counterfeit.

If the color that the printer of above-mentioned tax reciept is printed is in the case of containing carbon printing ink, can be on the surface of two-dimensional bar code One, lid is similar with the color, but the color of carbon-free ink or R, G, B color space can not be converted directly into C, M, The seal of the ink of the color of Y, K color space, even if the tax reciept can be made by the formed image of high-precision scanning, two-dimensional strip The color and seal color of code will all turn into a kind of color or can not faithfully turn into original color, therefore with preventing duplication Antiforge function.

It can also use not carbon containing by printing process in tax reciept printing, on the position for the two-dimensional bar code that will be printed Ink or the color of R, G, B color space can not be converted directly into C, M, Y, the ink of the color of K color spaces is printed out Some patterns or camouflage color dot matrix.

Here, described geometric dot matrix distribution refers to：The dot matrix distribution of two-dimensional bar code is constituted, is by its information dot matrix The presence or absence of, the difference of the position of information dot matrix, the difference in the direction of information dot matrix, the difference of the shape of information dot matrix, information point The difference of the quantity of battle array, requires that the set for being distributed binary array carries out the dot matrix group that dot matrix combination is filtered out according to user The two-dimensional bar code that the geometric characteristic of at least one form including the result of conjunction is formed.

And the dot matrix distribution of described physics refers to：The dot matrix distribution of two-dimensional bar code is constituted, is by information dot matrix The difference of modulation system, the difference of the result of the phase-modulation of information dot matrix, the difference of the direction of propagation of information dot matrix, information point Including the difference of the Mechanics Vector of battle array, the difference of the frequency of information point distribution, the characteristic shape of the physics of at least one form Into two-dimensional bar code.

On common high-speed digital printing machine, the method for realizing high speed printing is that two-dimensional bar code is made to the form of character library , it is encased in the composing system of code-spraying printer, the composing system of code-spraying printer is handled according to the form of word, will All variable information numbers and two-dimensional bar code corresponding with variable information number, generate printed data, and printed data is straight Connect and be installed into high-speed digital printing machine, so that, realize high speed code-spraying printing.

Another method of high speed code-spraying printing is realized, is exactly, by all variable information numbers and and variable information The printing image of digital corresponding two-dimensional bar code, printing position, the information such as printed dimensions is fabricated to by program, or tool software The printed data of the document forms such as PDF, TIFF, PS, EPS, JPEG or BMP, or it is fabricated to the print of other printing machine vendors dictates The printed data of brush image file format, printed data is installed directly into high-speed digital printing machine, can also be realized and be sprayed at a high speed Code printing.

That is, when realizing the printing of two-dimensional bar code by high speed ink jet numbering machine or digital printer, two-dimensional bar code Data are by including character library form, vector data format, image data format, ink jet numbering machine or digital printer exclusive data lattice Formula is sent in ink jet numbering machine or digital printer.

Two-dimensional bar code can be entered by the two-dimensional bar code of character library form in the composing system of code-spraying printer or printer The printing of row variable information, can also install one virtually by way of virtual printer, on the driver of printer The driver of printer, code-spraying printer or printer are connected by the driver of this virtual printer by program, from A printing image is achieved with the driver of code-spraying printer or printer, in this printing image, according to user The two-dimensional barcode image related to variable information is sticked on the position specified, then, then code-spraying printer or printing is sent to Machine is implemented printing or printed, and repeats above-mentioned operating process, finally achieves that the printing to whole variable information or printing.

The printing of variable information can also print the method for (Overly Print), i.e., the position specified in user using covering Put, the overall printing image that the image of the two-dimensional bar code related to variable information is sticked, be placed on covering printing work( In internal memory specified by the code-spraying printer or printer of energy, code-spraying printer or printer are automatically by this printing image and ticket According to product packaging or label printing image carry out covering printing, repeat above-mentioned operating process, finally achieve that to entirely may be used Become the printing or printing of information.

The printing of variable information can also be using the method directly printed, i.e., by program in same bill, product packaging Or label printing image variable information printing position, often add a variable information data, and with variable information phase On the picture position of the two-dimensional bar code of pass, the view data for often sticking a two-dimensional bar code related to variable information is just sent to spray Code printing machine or printer, implements printing or prints, until whole variable information printing or be completed for printing.

In a word, the printing of variable information data and two-dimensional bar code is by including the direct print form of computer, calculating Mechanism version form, virtual printing form covers printing form, and character library form directly generates printed data and is installed to ink jet numbering machine Or at least one of the form in digital printer form is realized.

Fig. 2 is a kind of flow chart of the recognition methods of two-dimensional bar code.

As shown in Figure 2：A kind of recognition methods of two-dimensional bar code is made up of five steps.

First, in the step of reading two-dimensional barcode image, by including scanner, CCD, CMOS, cell phone cameras mirror Any one imaging sensor including head reads the image of two-dimensional bar code.

Here, including scanner, any one imaging sensor including CCD, CMOS, cell phone cameras camera lens is being read It is towards two-dimensional barcode image during two-dimensional barcode image.

Secondly, in the step of image procossing, the gray level image of the two-dimensional bar code read in previous step is transformed into Bianry image, is carrying out Thinning process, is finding out each lattice position of two-dimensional bar code.

In the step of code division, the information in each pattern is described into module and is partitioned into, to recognize its code value.

In the step of cognizance code value, by can direct geometric or physics the distribution of record information information The rule for describing module identifies the code value of two-dimensional bar code.

Finally, in the step of exporting the code value of two-dimensional bar code, the code value of display or output two-dimensional bar code.

Identifier is when recognizing two-dimensional bar code, typically using infrared illumination, what infrared imaging sensor was identified, It is main to consider what two-dimensional bar code was printed using carbon containing ink or ink powder or transparent infrared ray absorbing ink etc., utilize this A little print materials have the characteristic to infrared ray absorbing, and C, M, Y color are to the characteristic of infrared transmitting, it is thus possible to by two dimension Bar code is imbedded in coloured image.When using thermal printer printing, be free of in the image printed out due to thermal printer Carbon, therefore can not be identified with infrared ray identifier, therefore can be identified using the image recognizer of visible ray.

Fig. 3 is the schematic diagram that many bit informations are recorded by the different directional spredings of dot matrix.Site 301 is by information point The two-dimensional bar code of the composition of battle array 302 and 303, different information are represented according to the different directions that information dot matrix 302 and 303 is constituted.

In figure 3, figure a can represent information 0, and figure b can represent information 1, and figure c can represent information 2, figure D can represent information 3.Two-dimensional bar code a, b, c, d obviously can be regarded as by different directions and different Electromagnetic Wave Propagations Direction, different Mechanics Vector result realizes many bit information records of computer.

The lattice arrangement that information shown in Fig. 3 describes module can regard a combined result during dot matrix is combined entirely as, That is the combination of dot matrix.

Fig. 4 is the schematic diagram by the different many bit informations of graphic recording computer.In Fig. 4, figure a can be represented Information 0, figure b can represent information 1, and figure c can represent information 2, and figure d can represent information 3.

The lattice arrangement that information shown in Fig. 4 describes module can also regard a combination knot during dot matrix is combined entirely as Really, i.e. the combination of dot matrix.

Fig. 5 is the schematic diagram by concentrating the information that site and scattered site are constituted to describe module.As shown in figure 5, by one All printing points in individual site constitute concentration site a and at least one scattered site composition that a dot matrix is constituted Spaced point b constitute can be embedded to information fine roots example.Concentrating site a to be set as the value of information " 1 ", disperse site b It is set as the value of information " 0 ".On the contrary, can be concentrating site a to be set as the value of information " 0 ", scattered site b is set as the value of information " 1 ".

In addition, in order to constitute standard dot pattern, as shown in figure 5, the high H of point 501 for concentrating site a₅₀It is used as two prints The diameter value of brush point (the minimum printable size of printer), the width W for the point 501 for concentrating site a₅₀It is used as a printing points Diameter value.Scattered site b point 502 functions only as the effect of shading gray scale homogenization, identification is not used in, scattered site The height H of point 502₅₁With width W₅₁All as the diameter value of a printing points.The height of site is H₅₂, width is W₅₂。

As shown in figure 5, concentrating site a to regard amplitude modulation mode i.e. (AM) screen as scattered site b can be regarded by tune Frequency mode is (FM) screen.I.e. can be according to the different dot patterns of modulation system come record information.

In addition, because high-frequency number site, institute can be regarded as concentrating site a to regard low frequency number site, scattered site b as With it may be said that concentrating site a and scattered site b to be the composition record information according to different frequency number.

And then, concentrate the gray value of site a each site big, the gray value of scattered site b each site is small, so Alternatively concentrate site a and scattered site b be for a point different gray values come record information.

In other words, concentrate the size of site a point big, the size of scattered site b each point is small, it is possible to say concentration Site a and scattered site b is come record information according to dot pattern of different sizes.

On above content, there can also be many meanss of interpretation.But if identical with above dot pattern, Belong within the scope of the present invention.

Fig. 6 is according to the result of different positions and phase-modulation to realize that many bit informations of computer are remembered by information dot matrix The schematic diagram of record.As shown in Figure 6：Figure (a) can represent information 0, and figure (b) can represent information 1, and figure (c) can be with table Show that information 2 and figure (d) can represent information 3, figure (e) and figure f can represent positioning datum information.

In addition, Fig. 7 is the dot matrix 701 of the given information description module shown in Fig. 6, by information dot matrix 702 not (a, b, c) and (d) the four kinds of out of phase modulation (PM) constituted with the point transmitting signal of the phase-modulation (PM) of physics Result schematic diagram.

Fig. 6 and the derivation of the mathematical modeling of the dot pattern being made up of phase-modulation shown in Fig. 7 are as follows.

If the function for the dot pattern being made up of the square lattice for being spaced T is ζ (x, y), then after ζ (x, y) is standardized Result it is as follows：

Here, it is for the signal response function of the dot pattern of phase-modulation：

η (x-i × T, y-j × T)=η (m × T, n × T)

M-th of the level being standardized, and vertical n-th of dot pattern point centre coordinate value for (m × T, n × T), the displacement function of the relative centre coordinate (m × T, n × T) of each point of dot pattern is [ε (m, n), δ (m, n)] in addition, that , the set D of dot pattern is as follows：

η (m × T, n × T)=η { ε (m, n) × T, δ (m, n) × T }+

η { [1- ε (m, n)] × T, [1- δ (m, n)] × T }+...+

η { [∞-ε (m, n)] × T, [∞-δ (m, n)] × T }+

η { [1+ ε (m, n)] × T, [1+ δ (m, n)] × T }+...+

η { [∞+ε (m, n)] × T, [∞+δ (m, n)] × T }

I.e.

{ [m × T+ ε (m, n) × T], [n × T+ δ (m, n) × T] } ∈ D

Thus, the phase-shifted after signal response function η { [i+ ε (m, n)] × T, [j+ δ (m, n)] × T } is brought in input into Measure ζ_{M-i, n-j}Output signal be：

Here, control ε (m, n) and (m, n), so that it may realize the phase-modulation for transmitting signal { ζ m, n }.

The lattice arrangement that information shown in Fig. 6 describes module still can regard a combination knot during dot matrix is combined entirely as Really, i.e. the combination of dot matrix.

Fig. 8 is the signal that a diverse location distribution and phase-modulation result by information dot matrix records many bit informations Figure.As shown in Figure 8：800 be that information describes module image.801,802,803 and 804 be information dot matrix, each point according to The bit information of numerical value 0 to 3, i.e., 2 can be represented shown in Fig. 6, four points can just represent the bit letter of numerical value 0 to 255, i.e., 8 Breath.Each point also may indicate that the bit information of numerical value 0 to 7, i.e., 3, and four points can just represent numerical value 0 to 4096, i.e., 12 Individual bit information.805,806 be horizontal direction positioning datum dot matrix, is mainly used in as information dot matrix 801-804 in level side To positioning datum, or phase-modulation horizontal direction initial value, 808,809 be vertical direction positioning datum dot matrix, main to use In as information dot matrix 801-804 vertical direction positioning datum, or phase-modulation vertical direction initial value.

Information shown in Fig. 8 describes the information recording method of module, can also regard as and be determined by information dot matrix relative level Diverse location for dot matrix, and perpendicular positioning dot matrix is distributed to record many bit informations.Information shown in Fig. 8 describes module Lattice arrangement can regard a combined result during dot matrix is combined entirely, the i.e. combination of dot matrix as.

It can be not only 1*1 dot matrix that information, which describes module character library lattice arrangement, and 1*2 dot matrix, 3*3 dot matrix can also be 3* 4, or 4*4 dot matrix, or 4*5, or 5*5 dot matrix, or 5*6 dot matrix, or 6*6 dot matrix, or n*n dot matrix, as long as it is proposed by the present invention Geometric or physics lattice arrangement, the character library being made is belonged within the interest field of the present invention.

Fig. 9 is the dot matrix distribution schematic diagram that module is described by the combination configuration information of dot matrix.As shown in Figure 9：Realize two Tie up bar code another means, be common two-dimensional bar code dot matrix distribution set in find out one group have include printing screen The code distribution of characteristic, or dot matrix distribution are relatively uniform, or the maximum i.e. similar degree minimum of Hamming distances between code, or It is the combined result of other purposes, or according to the recognition feature of fixed focal length, the lattice dimensions of code is reduced, constitutes one two Tie up bar code.

Fig. 9 describes the example of dot matrix module for the information of 20*20 dot matrix, and 900 describe point for the information of 20*20 dot matrix in figure Battle array module, has and a little 901 represents information dot matrix " 1 ", does not put 902 expression information " 0 ", and the dot matrix 903 of surrounding represents positioning datum point Battle array.As shown in figure 9, in the set of the dot matrix distribution of common two-dimensional bar code, according to printing net screen characteristics, finding out distribution more equal It is even, a kind of combination distribution that dot matrix is separated from each other, such as in each group of 6*6 dot matrix of common two-dimensional bar code, by each group The two-dimensional bar code shown in 3*3 dot matrix pie graph 9 being separated from each other, the information of each 3*3 point one byte of matrix representation, can see Go out, compared with ordinary two dimensional bar code, each dot matrix is separated from each other, dot matrix is distributed than more uniform, although with above-mentioned two-dimensional bar code phase Than, there are some irregular distributions, but be due to bigger than the information content that above- mentioned information describes module record, therefore, there is certain Practical significance.

In addition, the need for being directed to ordinary two dimensional bar code according to application, such as increasing the Hamming distances between code, generation is reduced The similar degree of intersymbol, improves code distributing homogeneity, the maximization of code distribution area, minimum of code distribution area etc. Deng, it is possible to achieve various dot matrix combinations, various code forms are formed, meanwhile, various point can be generated The character library of battle array pattern, these all belong within the scope of the present invention.

Figure 10 is the dot matrix distribution schematic diagram that another combination configuration information by dot matrix describes module.Such as Figure 10 institutes Show：1001 represent perpendicular positioning dot matrix, and 1002 represent the interval of perpendicular positioning dot matrix, and 1003 represent horizontal location dot matrix, 1004 The interval of horizontal location dot matrix is represented, 1005 represent information dot matrix.

It is approximate with ordinary two dimensional bar code, here with all cells in region shared by two-dimensional bar code, i.e., with decomposable asymmetric choice net The dot matrix region of ability describes the information of a bit, and information " 1 " can use bianry image with information " 0 " in each cell B＆W is represented, can also be represented with the difference of the overall gray value of coloured image, it is also possible to which different color represents, Can also will be smaller to image contributions in the bitmap of coloured image, obvious low level is distributed immediately, according to Figure 10 rule And the information content enters line replacement, in a word, information " 1 " and information " 0 " in each cell are as long as ensureing the bar of capacity of decomposition Under part, realize that information is described by difference.

Figure 11 is that the color region that can not be converted with CMYK color space using RGB color realizes showing for anti-counterfeit printing It is intended to.Color space used in general scanner is RGB forms, and color space used in common printing presses is CMYK Form.As shown in figure 11：If color is selected in RGB/CMYK color region, the image gone out printed by it can be swept Retouch instrument faithfully to replicate and print out, i.e., the color region is reproducible region.It is as shown in figure 11 again：If selecting RGB color The image gone out printed by region or CMYK color region can not faithfully be replicated by scanner.It can be realized using such principle The effect of anti-counterfeit printing.For example, the color of two-dimensional bar code selects K editions, it can be printed above two-dimensional bar code with the colour cells of CMY tri- Into image, and for example the colour cells of fruit CMY tri- into color of image it is deeper, actual have the composition of black, but is due to the colors of CMY tri- Carbon is not contained in the color of image of composition, is transmission to infrared ray, therefore do not influence the recognition of the two-dimensional bar code of K editions.But, If above-mentioned image is replicated by scanner, it is printed go out image, originally the colour cells of CMY tri- into the composition with black figure As color, it will be reflected in K versions, be clashed with the original two-dimensional bar code in K versions in point version, therefore can not be correct The two-dimensional bar code in K versions is read, so as to reach false proof effect.

Figure 12 is the addition camouflage color dot matrix in two-dimensional bar code, the schematic diagram of camouflage color mark.As shown in figure 12：1201 be bill Image, 1202 be two-dimensional bar code, and 1203 be camouflage color dot matrix, and 1204 be that camouflage color is marked.The ink of the two-dimensional bar code use property distinguished, A kind of print material in ink powder, ink is printed, and here, the ink for the property distinguished refers to；Using readability print material in printing matchmaker Implement printing on body, its image after printing under the illumination of institute's standing wave length and corresponding imaging sensor, can pass through figure As sensor is read.Camouflage color dot matrix and camouflage color mark a kind of print material in the ink using the non-property distinguished, ink powder, ink to carry out Printing, here, the ink of the non-property distinguished refers to；Implement printing on print media using the non-readable material that prints, after it prints Image, under the illumination of institute's standing wave length and corresponding imaging sensor, can not be read by imaging sensor.For example： When being distinguished using infrared illumination, and infrared imaging sensor, on this condition, common C, M, each color of Y By blank sheet of paper it is reflective after be all presented transparent, therefore no matter the random color synthesized by these three colors, infrared ray sensor read The image arrived is white image, and therefore, common C, M, each color of Y belongs to the non-property distinguished for infrared ray sensor Print material.And K editions colors are due to carbon containing, therefore, when being distinguished using infrared illumination, and infrared imaging sensor, The characteristic to infrared ray absorbing is presented in K colors under the conditions of this, and the image read in infrared ray sensor is black image, because This, with the image of K color printings, can clearly distinguish out, fixed to mean under infrared ray sensor as the property distinguished Ink.

Camouflage color dot matrix, is mainly used in confusing machine, prevents optical pickup device from reading two-dimensional bar code.Camouflage color dot matrix Size is as similar with two-dimensional bar code as possible, and arrangement, can be similar to the lattice arrangement of two-dimensional bar code it is contemplated that various, Can also be different.It can be neat arrangement, random arrangement can also be made.The angle of dot matrix distribution, can be with two dimension The distribution angle of bar code is consistent, can also be different.In a word, as long as method that illegal person can not be manually can be made by two-dimensional bar code Dot matrix pluck out can.

Bill images, camouflage color dot matrix, camouflage color mark is because be non-personalized data, therefore can be reinstated with bill images one Common offset press, relief printing plate or intaglio press are printed, and two-dimensional bar code is printed with high speed ink jet numbering machine.Certainly, need not When customized information prints, two-dimensional bar code also can use common offset press, and relief printing plate or intaglio press are printed.Camouflage color dot matrix Can be a lot, and overlapped with two-dimensional bar code dot matrix, in the space that two-dimensional bar code dot matrix can also be arranged in.

Camouflage color mark is primarily used to confuse human eye, human eye is not readily apparent two-dimensional bar code, therefore, it can import vision mould Type, can be that hanging point single color printing is not into a pattern or with lattice arrangement into a pattern, surface can be dull Color or camouflage color shape pattern, can also be made up of several patterns.

Two-dimensional bar code can be individually present, and can also collectively constitute a two-dimensional bar code with camouflage color dot matrix or camouflage color mark, That is, camouflage color dot matrix or camouflage color mark can turn into a part of two-dimensional bar code.

Figure 13 is the schematic diagram of the bill for having two-dimensional bar code with 600dpi press printings.In 600dpi printing precision Under, the two-dimensional bar code printed out, the size of each index point is 0.042mm or so, and according to Ruili criterion, human eye can see that Size be below 0.1mm, as shown in the figure：It is being printed on SCURITY marks with invoice number identical information two-dimensional bar code not Easily visually identified, along with two-dimensional bar code be printed on by the colour cells of CMY tri- into black component SCURITY mark On, as described above, being not easy to copy two-dimensional bar code using very high-precision scanner.Therefore it can play in one yard of a mark On the basis of again with not reproducible antifalse effect.

Figure 14 is the schematic diagram of the bill for having two-dimensional bar code with 200dpi press printings.In 200dpi printing precision Under, the two-dimensional bar code printed out, the size of each index point is at least 0.13mm or so, can be seen according to Ruili criterion human eye The size seen is below 0.1mm, as shown in the figure：The two-dimensional bar code with invoice number identical information printed on SCURITY marks Although can may be seen indistinctly, due to two-dimensional bar code be printed on by the colour cells of CMY tri- into have black component SCURITY indicates, as described above, i.e. using duplicator or very high-precision scanner still can not copy two-dimensional strip completely Code.It can equally play on the basis of one yard of a mark and with not reproducible antifalse effect.

Bill identification information is printed with bill, installation two-dimensional bar code identifier on invoice machinery is made in machine, so that it may constitute Machine beats the bill identification system of invoice machinery, can take precautions against the true phenomenon that must be reaped staggering profits of beating of illegal person's false tickets and occur.

Figure 15 is the schematic diagram that camouflage color dot matrix is inserted in the space of two-dimensional bar code dot matrix.As shown in figure 15：1501 be letter Breath describes an information recording unit of module, and 1502 be the information lattice point that information describes module, and 1503 be camouflage color dot matrix A point.As introducing as described above, information describes the ink printing of the information dot matrix use property distinguished of module, camouflage color point Battle array is printed using the ink of the non-property distinguished, thus while adding camouflage color dot matrix, recognizer still can be known with accurate Not.But, if with common scanner, the information dot matrix and camouflage color dot matrix of invisible-bar-number are all read as a kind of color , scanner can not tell any dot matrix, if carrying out manpower intervention, and method manually scratches picture, and which is not known yet For information describe module information dot matrix, which be camouflage color dot matrix, this just serve prevent by high accuracy scanning scratch as The purpose that method is forged.

Figure 16 is that ordinary two dimensional bar code can also add the schematic diagram of camouflage color dot matrix.As shown in figure 16：1601 be common two Bar code is tieed up, 1602 be an information flag of common two-dimensional bar code, and 1603 be that with the addition of camouflage color in common two-dimensional bar code Dot matrix, here, camouflage color dot matrix are added into the space of two-dimensional barcode information mark.With above-mentioned, common two-dimensional bar code An information flag use property distinguished ink printing, camouflage color dot matrix using the non-property distinguished ink print, though therefore Camouflage color dot matrix is so added, recognizer still can be with the generation of accurate identification two-dimensional bar code under ultrared lighting condition Code value.But, if with common scanner, the information flag of two-dimensional bar code and camouflage color dot matrix are all read as a kind of color Arrive, scanner can not tell any dot matrix, if carrying out manpower intervention, method manually scratches picture, and which is not known yet The individual information flag for two-dimensional bar code, which is camouflage color dot matrix, equally may also function as the purpose for preventing forging.But, two Dimension bar code is not information embedment code eventually, moreover, the information characteristics spot size of two-dimensional bar code is very big, is difficult to hide, this may It is its inadequate natural endowment.Along with the read write line that in the market can be bought does not support the knowledge of the two-dimensional bar code of addition camouflage color dot matrix Read, therefore be subject to certain restrictions in popularization.

Figure 17 is the composition and the schematic diagram of read method of the two-dimensional bar code in the case of two kinds of different spectrum.Such as Figure 17 institutes Show：In a two-dimensional bar code, it can be made up of information record dot matrix 1701 and benchmark dot matrix 1702, information record dot matrix can be set 1701 in the case of a certain spectrum be with the property distinguished, due to benchmark dot matrix 1702 be in the case of another spectrum with The property distinguished, they present orthogonality, i.e. information record dot matrix 1701 in the case of a certain spectrum be with the property distinguished, and Having in the case of another spectrum can not the property distinguished.Similarly, 1702 in the case of another spectrum be with the property distinguished, and Having in the case of former spectrum can not the property distinguished.Semi-orthogonal can be also presented in they, i.e., information record dot matrix 1701 with Between benchmark dot matrix 1702, there is a side to meet above-mentioned orthogonality.Such a consideration is primarily used to prevent illegal person from utilizing certain The optical image sensor cracking code of one spectrum, because being in one image when printing two parts of two-dimensional bar code What point version went out, thus position relationship between information record dot matrix 1701 and benchmark dot matrix 1702 be will not be because being divided into two version quilts Destruction, and illegal person when forging can only the image of the spectrum different to two respectively be read out, information will necessarily be destroyed Record the position relationship between dot matrix 1701 and benchmark dot matrix 1702.

For the information record dot matrix of above-mentioned two-dimensional bar code, benchmark dot matrix and camouflage color dot matrix use AES, by it Position, order and numerical value be encrypted, obtain the printing image of a random distribution.Similarly, will using decipherment algorithm Their position, order and numerical value are decrypted, and obtain the printing image of original two-dimensional bar code.The purpose of this processing, Pass through artificially stingy picture also for illegal person is prevented and replicate two-dimensional bar code.

Figure 18 is the schematic diagram for all representing bill customized information with two-dimensional bar code.As shown in figure 18：Purchasing unit, Description of Goods, quantity, price, the amount of tax to be paid, the information such as sales unit, in password area, is entered row information with two-dimensional bar code completely and is embedded to.By Then printed using impact printer, although printing precision is very low, still can obtain information content, arrange attractive in appearance Relatively good effect.

Figure 19 is etc. that the information of quantity dot matrix distribution describes the schematic diagram of principle.This is also to constitute letter by the combination of dot matrix Breath describes the example of the dot matrix distribution of module, while be also the geometric distribution that many bit informations are described by diverse location, It is also the distribution for the physics that many bit informations are described by phase-modulation.

As shown in figure 19：2 bits can be described by a dot matrix using four dot matrix regions with decomposable asymmetric choice net ability Information, although the information than Figure 10 describes few one times of the description information content of module, because no matter the value of information is how many, information is described The quantity of module dot matrix is constant, therefore seen on the whole that the random distribution of code is smaller, can obtain the density of information description The effect mutually compatible with the aesthetic property of code.For example in figure (a) can represent information " 0 ", and (b) can represent information " 1 ", (c) Information " 2 " can be represented, (d) can represent information " 3 ".

Figure 20 be using etc. quantity dot matrix constitute information describe module schematic diagram.As shown in figure 20：2001 represent vertical Dot matrix is positioned, 2002 represent the interval of perpendicular positioning dot matrix, and 2003 represent horizontal location dot matrix, and 2004 represent horizontal location dot matrix Interval, 2005 represent 2*2 cell, and 2006 represent an information dot matrix in 2*2 cell.Each information dot matrix is in institute Four diverse locations in fixed 2*2 cell, represent different information respectively.

Figure 21 is the form of expression schematic diagram of the bitmap of coloured image.As shown in figure 21：Any one represents 256 gray scales Image be to be represented by the code of 8 bits, may make up the image of each bit, higher bit position, it can be seen that original image Profile, digit is lower, and image is fuzzyyer, and random distribution is more presented in image.That is the lower influence to original image of digit is more It is small, using this characteristic, above-mentioned two-dimensional bar code can be replaced with a minimum bitmap, or with several minimum bitmaps Replace, then print out, so that it may obtain a printing image for being embedded with information.Here it is possible in R, G, a kind of B color In be embedded to information, also can in two or three of color simultaneously be embedded to information.

Figure 22 is the schematic diagram of the two-dimensional bar code constituted with written form.As shown in figure 22：There are 12 in word " according to " Information describes module, and 2201 be the information description module of 7*9 dot matrix, and 2202 be also the information description module of 7*9 dot matrix, and 2203 are The information of 7*17 dot matrix describes module, and 2204 be the information description module of 7*7 dot matrix, and 2205 be the information description mould of 9*11 dot matrix Group, 2206 be the information description module of 9*7 dot matrix, and 2207 be the information description module of 9*7 dot matrix, and 2208 be the letter of 5*7 dot matrix Breath describes module, and 2209 be the information description module of 7*7 dot matrix, and 2210 be the information description module of 11*7 dot matrix, and 2211 be 9*7 The information of dot matrix describes module, and 2212 be the information description module of 11*9 dot matrix.

Here, during the principle of information embedment, word outline will keep the original shape of word to have broken string as far as possible Phenomenon, it is as far as possible smooth, the span for there are two points is run into the case of the curve close to 45 degree, a point should be mended.Close to straight line Shi Buyong mends point, and word should try one's best smooth and beautiful appearance in a word.The interval of benchmark dot matrix " 1 " and other dot matrix is greater than 1 grid, base The interval of battle array " 0 " and other dot matrix is greater than 2 grids on schedule, and the interval of information dot matrix and other dot matrix is greater than 2 grids.

Each group information, which is described around module, will certain interval, to enter line program segmentation.It is embedded in the literature Information information content it is as big as possible, you can the gross area that the information of placement describes module is as big as possible.

Figure 23 is the application schematic diagram of the two-dimensional bar code in the form of word.As shown in figure 23：In using stylus printer tax reciept, Tax reciept printing content can enter with " paying tax in accordance with the law " four words row information embedment, can both solve due to stylus printer tax reciept use it is general Tax reciept printing content, all can be embedded in two-dimensional bar code by the problem of logical two-dimensional bar code influence nominal value is attractive in appearance again.

Figure 24 is with the application schematic diagram of the two-dimensional bar code of lace pattern form.As shown in figure 24：Using stylus printer tax reciept In, the content of tax reciept printing can enter row information embedment with the form of lace, can both solve because stylus printer tax reciept is used commonly Tax reciept printing content, all can be embedded in two-dimensional bar code by the problem of two-dimensional bar code influence nominal value is attractive in appearance again.

Figure 25 is with the application schematic diagram of the two-dimensional bar code of shading form.As shown in figure 25：In using stylus printer tax reciept, tax The content of ticket printing can enter row information embedment with the form of full version shading, you can solve because stylus printer tax reciept is using common two The problem of bar code influence nominal value is attractive in appearance is tieed up, tax reciept printing content can be all embedded in again in two-dimensional bar code.

Figure 26 is the endowed schematic diagram that two-dimensional bar code is realized using Laser marker.As shown in figure 26：Use laser beam marking Machine directly can carry out authentication for commodity on a production line, can accomplish commodity and the unification of packaging, merchandise control and business Product are false proof, the unification of commodity inspection.

Figure 27 is the schematic diagram for being embedded to information in normal image with two-dimensional bar code.As shown in figure 27：Using human eye to figure As the recognition capability of gray scale is than relatively low visual characteristic, using the overall gray difference of image, i.e., according to the dot matrix of two-dimensional bar code The gray value of state change image, or the difference of the gradation of image only on the bitmap of image low level will i.e. on the bitmap of low level Two-dimensional bar code replaces bitmap images, and information is embedded in image.Here, remember as the information that information is embedded in normal image State the dot matrix distribution of module, can be such as Figure 10, Figure 20, the distribution of any one dot matrix combination as Fig. 9 or Geometric distribution or the distribution of physics as such as Fig. 3, Fig. 4, Fig. 5, Fig. 8.

Figure 28 is the schematic diagram that two-dimensional bar code has encryption property.As shown in figure 28：If P (t) is a random function, point Battle array combines produced dot matrix：

d₁₁, d₁₂..., d_1f

D=d₂₁, d₂₂..., d_2f

……

d_g1, d_g2..., d_gf

Random alignment position function of the battle array that sets up an office again in two-dimensional space be：ζ [p (x), p (y)], then dot matrix combination is produced Raw each dot matrix d_ijPosition be：ζ_ij[p(x_ij), p (y_ij)]。

If Figure 28 (a), which is dot matrix, combines produced dot matrix d_ijRandom alignment ζ in two-dimensional space_ij[p(x_ij), p (y_ij)], according to Fig. 6, the information of the dot matrix shown in Fig. 8 describes principle, the dot matrix d produced by dot matrix combination_ijIn ζ_ij[p(x_ij), p (y_ij)] on position, although the data of one group of determination can be represented, still, due to without reference to benchmark, therefore can not be can recognize that This group of data, only as Figure 28 (b), add one group of benchmark dot matrix, now, so that it may the point produced by dot matrix is combined Battle array d_ijOne group of data of represented determination are identified.

Unlimited division can be carried out in X-coordinate axle, with Y-coordinate axle especially as the two-dimensional space of electronic image, Therefore the characteristic being distributed using above-mentioned dot matrix, it is possible to achieve than the much safe data encryption of current conventional encryption algorithm Effect.

If further, same actual electronic image is combined, can also accomplish both obtain the encryption of high security, together When can realize again data hidden greater security encryption.

In the application as anti-counterfeit field, it is desirable to which the rule for the information that the dot matrix distribution of two-dimensional bar code can be described has Can not cracking, general two-dimensional bar code, the lattice block (Symb0l) of black is information " 1 ", and white dot matrix is information soon " 0 ", benchmark dot matrix is also exposed to surface in addition, therefore is easy to read genuine commodity mark by the recognizer illegally made Know, to reach the purpose disrupted the market.Using Figure 28 principle, can play prevents illegal person's malice from reading two-dimensional bar code data Effect.

To reach above-mentioned purpose, many bits can will be recorded by diverse location distribution and phase-modulation result shown in Fig. 8 The information of information describes module and carries out following improvement.

Figure 29 is the schematic diagram regardless of cloth on reference position by benchmark dot matrix.As shown in figure 29：2901 be actual The benchmark dot matrix on vertical reference position is distributed in, 2902 is are not distributed in the benchmark dot matrix on reference position, in identification letter When breath describes the code value of module, be extrapolated by 2901 lattice positions and 2902 lattice positions 2902 actual lattice site Put, 2903 be the directional reference dot matrix that information describes module, and 2904 be benchmark dot matrix of the actual distribution on horizontal reference position, 2905 is are not distributed in the benchmark dot matrix on reference position, are by 2904 when identification information describes the code value of module Lattice position extrapolates 2905 actual lattice position with 2905 lattice positions, and 2906 be information dot matrix, according to reference position Put and the position of information dot matrix 2906 can calculate the code value that information describes module.

Figure 30 is the schematic diagram that the information for hiding reference dot matrix describes module.As shown in figure 30：3001,3004 with 3007 3 dot matrix configuration informations describe the overall coordinate basis of module, and reference point 3002,3003,3006 and 3008 is all Occur to hide form, when identification information describes the code value of module, be made up of 3001,3004 and 3,007 three dot matrix Information describes the overall coordinate basis of module to calculate reference point, according to reference point and information dot matrix 3009, 3010,3011,3012 distributing position can calculate code value.

Figure 31 is a kind of schematic diagram of the method for laser beam marking.Result in view of laser beam marking is generally not by heat Amount, which is burnt, breaks a certain position, but by the cavitation effect produced by local high energy, makes object local evaporation, therefore directly pass through The result of laser beam marking, the position marked is not carbon containing, in order to solve this problem, the method that can use Figure 31.As schemed Shown in 31：In the body surface marked, one light source to recognizer of method formation for first passing through printing or coating etc. absorbs Coating 3103, on 3103 coating, then pass through the method formation one of printing or coating etc. the light source of recognizer reflected Coating, so, under the irradiation of laser beam, 3102 coatings are partially stripped, and expose 3103 coatings, so, by laser light Beam irradiates the image of formed two-dimensional bar code, just turns into the image absorbed to the light source of recognizer, therefore can directly carry out The identification of code value.

Above is a kind of constructive method of two-dimensional bar code proposed by the present invention, in a particular application, because length is limited only Simply list for information description module dot matrix in some simply examples, practical application, the form of code, camouflage color is marked, The composition of two-dimensional bar code in the case of camouflage color dot matrix, and different spectrum there is also Protean processing with read method Skill, processing mode etc., these are all the concrete application problems under the guiding theory of the present invention, belong to the power of the present invention Within the scope of profit.

Claims (13)

1. a kind of constructive method of two-dimensional bar code, it is characterised in that：

(1) two-dimensional bar code is, in the case where keeping the principle of the original shape of word as far as possible, information to be embedded in literary glyph；With Constitute the form embedment information of lace pattern；In the form of shading；With the combination of information record module or information record module What at least one form including record information was constituted；

(2) the information description module for constituting two-dimensional bar code is by recording many bit informations including the different directional spredings with dot matrix Quick Response Code full combination in a dot matrix combination；Pass through the Quick Response Code of many bit informations of the different graphic recording of information dot matrix The combination of a dot matrix in full combination；In the concentration of dot matrix and the Quick Response Code of the scattered recorded information of dot matrix are combined entirely The combination of one dot matrix；Result according to different positions and phase-modulation is recorded in the full combination of Quick Response Code of many bit informations A dot matrix combination；Pass through complete group of the Quick Response Code of many bit informations of phase modulation recording of the different physics of information dot matrix The combination of a dot matrix in conjunction；Dot matrix is distributed the combination of a dot matrix during relatively uniform Quick Response Code is combined entirely；Between code The combination of a dot matrix in the maximum full combination of the minimum Quick Response Code of i.e. similar degree of Hamming distances；The maximum of code distribution area The combination of a dot matrix in the full combination of the Quick Response Code of change；Including the combination of one dot matrix of the minimum of code distribution area Geometric distribution, or at least one of the distribution form of physics describe information.

2. a kind of recognition methods of two-dimensional bar code, it is characterised in that：

(1) have infrared ray, it is seen that the light source of at least two spectral characteristics including light, ultraviolet as lighting source, and Corresponding imaging sensor is implemented to read the operation of two-dimensional bar code facing to the two-dimensional bar code being printed on print media；

(2) what is read imaging sensor is with readable dot matrix, and in another light in the case of a certain spectrum Just there is the dot matrix for the property distinguished, they are presented orthogonality each other in the case of spectrum, or the two-dimensional bar code of semi-orthogonal image, The binary conversion treatment of image is carried out, the position of each dot matrix is calculated；

(3) by two-dimensional bar code can record information each information dot matrix information record rule, including according to applying needs The dot matrix complete in combination of Quick Response Code combination, the geometric distribution formed, at least one of the distribution of physics The code value that the rule that information is described is identified.

3. a kind of constructive method of two-dimensional bar code according to claim 1, it is characterised in that：Two-dimensional bar code dot matrix is to pass through In the case of being formed containing carbon printing ink, it can be affixed one's seal on the surface of two-dimensional bar code by printing, a kind of form including laser beam marking Coincidence is another including carbon-free ink, and R, G, the color of B color spaces can not be converted directly into C, M, Y, K color spaces The image that a kind of ink including color is formed.

4. a kind of constructive method of two-dimensional bar code according to claim 3, it is characterised in that：It is above-mentioned including carbon-free oil Ink, R, G, a kind of ink that the colors of B color spaces can not be converted directly into including C, M, Y, the color of K color spaces is formed Image if under the image conditions of latticed form, can be by AES, with being combined for two-dimensional bar code.

5. a kind of constructive method of two-dimensional bar code according to claim 1, it is characterised in that：Described geometric dot matrix Distribution refers to, constitutes the dot matrix distribution of two-dimensional bar code, is by the presence or absence of its information dot matrix, the difference of the position of information dot matrix, letter The difference in the direction of dot matrix is ceased, the difference of the shape of information dot matrix, the difference of the quantity of information dot matrix, the result of dot matrix combination exists The two-dimensional bar code that the geometric characteristic of interior at least one form is formed.

6. a kind of constructive method of two-dimensional bar code according to claim 1, it is characterised in that：The dot matrix of described physics Distribution refers to：The distribution of the information dot matrix of two-dimensional bar code is constituted, is the difference of the modulation system by information dot matrix, information dot matrix The difference of the result of phase-modulation, the difference of the direction of propagation of information dot matrix, the difference of the Mechanics Vector of information dot matrix, information point Including the difference of the frequency of battle array distribution, the two-dimensional bar code of the characteristic formation of the physics of at least one form.

7. a kind of constructive method of two-dimensional bar code according to claim 1, it is characterised in that：The view data of two-dimensional bar code It is by being sent including character library form, vector data format, image data format, ink jet numbering machine or digital printer private data format Enter to ink jet numbering machine, Laser marker, in digital printer.

8. a kind of constructive method of two-dimensional bar code according to claim 1, it is characterised in that：The image of two-dimensional bar code is formed It is by the way that including the direct print form of computer, computer master making form, virtual printing form covers printing form, character library shape Formula, directly generates printed data and is installed to ink jet numbering machine, digital printer, at least one of equipment of Laser marker form Realize.

9. a kind of constructive method of two-dimensional bar code according to claim 1, it is characterised in that：Two-dimensional bar code be directed to image Information embedment method be to pass through, include the replacement means of image bit map, the means of image overall gray level difference, the means of shading What any one means inside were realized.

10. a kind of recognition methods of two-dimensional bar code according to claim 2, it is characterised in that：Two-dimensional bar code dot matrix is logical Cross in the case of being formed containing carbon printing ink, can be affixed one's seal on the surface of two-dimensional bar code by printing, a kind of shape including laser beam marking Formula coincidence is another including carbon-free ink, and R, G, the color of B color spaces can not be converted directly into C, M, Y, K color spaces Color including a kind of image that is formed of ink.

11. a kind of recognition methods of two-dimensional bar code according to claim 10, it is characterised in that：It is above-mentioned including carbon-free Ink, R, G, the color of B color spaces can not be converted directly into a kind of ink institute shape including C, M, Y, the color of K color spaces Into image if under the image conditions of latticed form, can be by AES, with being combined for two-dimensional bar code.

12. a kind of recognition methods of two-dimensional bar code according to claim 2, it is characterised in that：Described geometric point Battle array distribution refers to that the dot matrix distribution of the two-dimensional bar code of composition, is that the position of information dot matrix is not by the presence or absence of its information dot matrix Together, the difference in the direction of information dot matrix, the difference of the shape of information dot matrix, the difference of the quantity of information dot matrix, dot matrix combination As a result the two-dimensional bar code that the geometric characteristic of at least one form including is formed.

13. a kind of recognition methods of two-dimensional bar code according to claim 2, it is characterised in that：The point of described physics Battle array distribution refers to：The distribution of the information dot matrix of two-dimensional bar code is constituted, is the difference of the modulation system by information dot matrix, information dot matrix Phase-modulation result difference, the difference of the direction of propagation of information dot matrix, the difference of the Mechanics Vector of information dot matrix, information Including the difference of the frequency of dot matrix distribution, the two-dimensional bar code of the characteristic formation of the physics of at least one form.