CN102381065B - A kind of invisible two dimensional barcode character library realizes the method for variable information printing - Google Patents
A kind of invisible two dimensional barcode character library realizes the method for variable information printing Download PDFInfo
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Abstract
The present invention relates to a kind of printing process using invisible two dimensional barcode character library to realize variable information in field of information processing, its object is to be suitable for high speed code-spraying printer or printer is made directly the demand of invisible two dimensional barcode printing, propose as the information that can directly record can be printed out at high speed, there is printing net screen characteristics, the invisible two dimensional barcode that geometric or physics is distributed, the composing system of high speed code-spraying printer or printer is passed through with the form of character library, variable information direct compilation is become the printed data of code-spraying printer or printer, printed data to be mounted directly to realize in high-speed press high speed printing. effect of the invention is that the information integral that can realize tax reciept or label, and a mark one yard can be accomplished, without network authentication when, directly certification on tax reciept or label, investment can be reduced, improve authentication efficiency, particularly when network suffers large-scale damage, still can normal maintenance work.
Description
Technical field
The invention belongs to field of information processing, especially a kind of invisible two dimensional barcode character library realizes the method for variable information printing.
Background technology
Along with the progress of computerized information science, computer library generation technique also development therewith. In recent years, along with material flows automation, and the needs of the false proof required variable information printing of tax reciept, the form of bar code character library is carried out print publishing, it is possible to resolve the problem of the high speed batch processing of printer. Round the problem that bar code high speed printing brings, the researcher of CANON proposes " bar code checks system and print drive " (JP 2010-134521). The method proposes the bar code after by printing and compares with the bar code image in character library, thus the printing quality of bar code can be checked.
For the bar code printing occurred with character library form, in order to improve the printing quality of bar code, the researcher of CANON also been proposed " bar code printing and print routine " (JP 2009-193428). This patent, mainly for the printing equipment not having bar code to compensate function, realizes high-precision bar code printing by carrying out the bar code graphics in character library automatically compensating.
Character library about lattice codebook generates, the researcher in Europe is the patent of " printing process of code image model " (Patent 2009-533277) in Japanese publication, the method is to print lattice codebook on general digital-code printer, lattice codebook is generated character library, constitutes the character library of the image model of code. The image word of code is indicated, the printing of lattice codebook can be realized by the printing process of common language.
This invention of relevant bar code printing in the patent 1 of technology disclosed above and patent 2, can't resolve bar code can carry out, by common photocopier, the problem that replicates, and bar code is difficulty with antifalse effect.It addition, bar code needs to take bigger space, for print content tax reciept closely, often there is no bigger space arrangement bar code.
This invention of printing of relevant lattice codebook in the patent 3 of technology disclosed above, the position of the dot matrix that the lattice codebook proposed due to this invention is based in code, and the code value formed with the relation of space datum mark on this position, owing to defined space reference point is non-existent, it is originally and is only used as coordinate points print information on dimensional printed chart picture, recognizer slides on dimensional printed chart picture, and the feature being known by the coordinate figure on the neighbouring position of coordinate can identify coordinate information value exactly. but, the lattice codebook of this imaginary actual and non-existent space reference point, if making the independent character library that code value is mutually different, in actual applications, these character libraries need random combination, lattice arrangement between character library can not like that mutually keep certain numerical relation to coordinate information, such as, when being just absent from dot matrix by horizontal direction (vertical direction) direction of space reference point, (horizontal direction) just all of dot matrix is again only on a direction of space reference point in the vertical direction, because the scope of dot matrix distribution is typically only at about 0.1mm, this makes identification device None-identified go out dot matrix is beyond space reference point. it addition, with the displacement dot matrix based on space reference point without directional information, it is impossible to carry out 360 degree of rotations. further, this motion 3 dot matrix are formed 128 letters and or numeral, then constituted various information by these numerals, there is the problem that information record efficiency is low. it addition, this motion does not account for the code being made up of word character library, due to character arranging can not in good order, owing to this code is imaginary space reference point, it is therefore possible to the phenomenon of misrecognized occurs. further, by the code arrangement of multiple this written forms together, being difficult to split the border of each character code when identifying, this is also the congenital defect of this code. sum it up, the lattice codebook of the form of this imaginary space reference point can only denotation coordination value information, it is impossible to directly represent a concrete code value. for being printed on the identical code on paper, the code value that the reading position difference of reading device reads is also just different. therefore the barcode technology that such as above-mentioned patent 1 and patent 2 are proposed can not be replaced, a concrete code information can not be described either directly through printing, that is the code of this form does not possess the character that can directly note down information, this can not realize a ticket one yard to tax reciept is false proof, and label printing can not be realized a mark one yard by this.
Summary of the invention
It is an object of the invention to directly print invisible two dimensional barcode for solution high speed code-spraying printer or printer, propose to print, by passing through, the information that directly records, there is printing net screen characteristics, geometric or physical distribution invisible two dimensional barcode generates the form of character library, composing system by high speed code-spraying printer or printer, variable information direct compilation is become the printed data of code-spraying printer or printer, it is achieved high speed printing.
This invention address that it technical problem is that takes techniques below scheme to realize:
A kind of invisible two dimensional barcode character library realizes the method for variable information printing, it is characterised in that:
(1) while printing variable information code value, on the printing position specified, computer graphical code that is a kind of relevant to variable information code value, that show is printed by invisible two dimensional barcode form.
(2) the computer graphical code that above-mentioned invisible two dimensional barcode form shows is with character library form, pictorial form, and the one form of which of vector form shows.
(3) the above-mentioned invisible two dimensional barcode showed with character library form is for can directly record information, has a printing net screen characteristics, the dot matrix distribution of geometric or physical distribution.
The described invisible two dimensional barcode that can directly record information refers to: in the composition of the dot pattern of composition invisible two dimensional barcode, existing information dot matrix has again positioning datum dot matrix.
The described invisible two dimensional barcode with printing net screen characteristics refers to: the dot pattern constituting invisible two dimensional barcode is with identical size, the dot matrix that the site form being separated from each other is constituted; Midpoint, site should be less than being equal to dot matrix that the form of distance between points constitutes interior according to the scope that the difference of the value of information configures, the invisible two dimensional barcode that at least one latticed form in above-mentioned form is constituted.
The invisible two dimensional barcode of the dot matrix distribution of described geometric distribution refers to: constitute the dot matrix distribution of the information point diverse location of invisible two dimensional barcode, the dot matrix distribution of information point different directions, the difform dot matrix distribution of information point, the different size of dot matrix distribution of information point, the dot matrix distribution of information point varying number, the dot matrix of the various combination of information point is distributed in the invisible two dimensional barcode of the recordable information formed according to geometric characteristic of interior at least one form.
The dot matrix distribution invisible two dimensional barcode of described physical distribution refers to: constitute the dot matrix distribution of out of phase modulation (PM) result of the information point of invisible two dimensional barcode, the dot matrix distribution of different modulating mode, the dot matrix distribution of the different directions of propagation, the dot matrix distribution of different Mechanics Vectors, the dot matrix of different frequency is distributed in interior, the invisible two dimensional barcode of the recordable information formed according to physical characteristic of at least one form.
A kind of recognition methods of invisible two dimensional barcode character library variable information dimensional printed chart picture, it is characterised in that:
(1) read by imageing sensor and can directly record information with what the form of character library showed, there is printing net screen characteristics, the image of the invisible two dimensional barcode of the dot matrix distribution of geometric or physical distribution.
(2) by can directly record information with what the form of character library show, having a printing net screen characteristics, the rule of the image construction of the invisible two dimensional barcode that geometric or physical distribution dot matrix is distributed identifies the code value of invisible two dimensional barcode.
(3) code value of display or output invisible two-dimensional bar code.
The described invisible two dimensional barcode that can directly record information refers to: in the composition of the dot pattern of composition invisible two dimensional barcode, existing information dot matrix has again positioning datum dot matrix.
The described invisible two dimensional barcode with printing net screen characteristics refers to: the dot pattern constituting invisible two dimensional barcode is with identical size, the dot matrix that the site form being separated from each other is constituted; Midpoint, site should be less than being equal to dot matrix that the form of distance between points constitutes interior according to the scope that the difference of the value of information configures, the invisible two dimensional barcode that at least one latticed form in above-mentioned form is constituted.
The invisible two dimensional barcode of the dot matrix distribution of described geometric distribution refers to: constitute the dot matrix distribution of the information point diverse location of invisible two dimensional barcode, the dot matrix distribution of information point different directions, the difform dot matrix distribution of information point, the different size of dot matrix distribution of information point, the dot matrix distribution of information point varying number, the dot matrix of the various combination of information point is distributed in the invisible two dimensional barcode of the recordable information formed according to geometric characteristic of interior at least one form.
The invisible two dimensional barcode of the dot matrix distribution of described physical distribution refers to: constitute the dot matrix distribution of out of phase modulation (PM) result of the information point of invisible two dimensional barcode, the dot matrix distribution of different modulating mode, the dot matrix distribution of the different directions of propagation, the dot matrix distribution of different Mechanics Vectors, the dot matrix of different frequency is distributed in interior, the invisible two dimensional barcode of the recordable information formed according to physical characteristic of at least one form.
And, in the composition of the dot pattern of composition invisible two dimensional barcode, existing information dot matrix has again positioning datum dot matrix.
And, each invisible two dimensional barcode character library has again the form means of the invisible two dimensional barcode character library of independence while may make up assembly form.
And, the composition of the invisible two dimensional barcode that the feature constituting the positioning datum dot matrix in the dot pattern of invisible two dimensional barcode can be the form of dot matrix can also be the word mixed with dot pattern is benchmark.
And, the printing of variable information and the invisible two dimensional barcode relevant to variable information is the hands section taking to generate printed data with type-setting mode; The hands section of virtual printing; Cover at least one means in the means printed or directly print.
And, the information point of invisible two dimensional barcode and positioning datum point can print with the ink of same spectral characteristic or powdered ink, it is also possible to print with the ink of different spectral characteristics or powdered ink.
And, during invisible two dimensional barcode identification, reader can take the illumination of same spectral characteristic, the hands section that the information point of invisible two dimensional barcode and positioning datum point read simultaneously; Different spectral characteristic, lighting system alternately, the means that the information point of invisible two dimensional barcode and positioning datum point read respectively can also be taked.
And, invisible two dimensional barcode character library lattice arrangement for comprising 1 × 1 dot matrix, 1 × 2 dot matrix, the composition of the lattice matrix of at least one form in CM plural number dot matrix.
Advantages of the present invention and have the benefit effect that the printing process of a kind of variable information adopting invisible two dimensional barcode character library that the present invention proposes, can pass through common high speed barcode scanning machine and the invisible two dimensional barcode relevant to variable information be printed on tax reciept or label while printing variable information code. The information integral of tax reciept or label can be realized, and a mark one yard can be accomplished, without network authentication when, directly certification on tax reciept or label, investment can be reduced and improve authentication efficiency, particularly when network suffers large-scale damage, still can normal maintenance work.
Accompanying drawing explanation
Fig. 1 is the flow chart of the variable information printing data generating method of a kind of invisible two dimensional barcode character library;
Fig. 2 is the flow chart of the recognition methods of the variable information dimensional printed chart picture of a kind of invisible two dimensional barcode character library;
Fig. 3 is the schematic diagram of the many bit informations of different directions logger computer by information point;
Fig. 4 is the schematic diagram by the different many bit informations of graphic recording computer;
Fig. 5 is by the schematic diagram of the invisible two dimensional barcode concentrating site to constitute with dispersion site;
Fig. 6 is the schematic diagram being realized computer many bit informations record by information point according to different positions;
The schematic diagram of the result of Fig. 7 out of phase modulation (PM);
Fig. 8 is the schematic diagram of the character library that an invisible two dimensional barcode is constituted;
Fig. 9 is the schematic diagram of the complete invisible two dimensional barcode being spliced into by invisible two dimensional barcode character library;
Figure 10 is interpolation information dot matrix in common language character library, constitutes the schematic diagram of digitized character library;
Figure 11 is with the schematic diagram duplicating the character library forbidding that code constitutes;
The organigram of the evaluator nib that Figure 12 adopts when being identify invisible two dimensional barcode.
Figure 13 is the schematic diagram utilizing the characteristic that RGB color and CMYK color space can not convert to realize anti-counterfeit printing;
Figure 14 is the schematic diagram with the tax reciept having invisible two dimensional barcode of 600dpi press printing;
Figure 15 is the schematic diagram with the tax reciept having invisible two dimensional barcode of 200dpi press printing;
Figure 16 is the schematic diagram that the combination by dot matrix realizes having the two-dimensional bar code of printing net screen characteristics.
In figure:
301 is a site
302 is the information point in site
303 is the information point in site
501 is the information point of AM screen
502 is the information point of FM screen
601 is a site
602 is the information point in site
701 is a site
702 is the point in site
800 is the dot pattern of a character library
801-804 is information dot matrix
805-809 is positioning datum dot matrix
100 is a character library
101 is the image of common language
102 is the distribution of information point
110 is that dot pattern is forbidden in the duplicating of a character library form
111 forbid lattice arrangement for duplicating
121 is cmos image sensor chip
122 is infrared LEDs illuminating lamp
123 is image imaging lens
124 consider light camera lens for infrared ray
125 is infrared illumination light guide plate
126 is interim nib
127 dustproof glass
128 is lens barrel
160 is the dot pattern of the invisible-bar-number character library of 20 × 20 dot matrix
161 is information point " 1 "
162 is information point " 0 "
163 is positioning datum dot matrix
Detailed description of the invention
Below in conjunction with accompanying drawing, the embodiment of the present invention is further described, but embodiment of the present invention is illustrative, rather than determinate.
Fig. 1 is the flow chart of the variable information printing data generating method of a kind of invisible two dimensional barcode character library.
As is shown in fig. 1: the variable information printing data generating method of invisible two dimensional barcode character library is made up of five steps.
First, reading and include tax reciept, Commercial goods labels is at the interior dimensional printed chart picture that will print variable information. Here, being not limited only to tax reciept, the dimensional printed chart picture of Commercial goods labels, every all dimensional printed chart pictures needing printing variable information may comprise interior.
Secondly, in the step reading variable information code, reading customer-furnished variable information code data, these data are generally 12 decimal datas, the main number representing tax reciept, the attribute of commodity, build date, manufacturing location, permitting sale place, and the specific information of user etc., variable information can also be encrypted by computer.
Next, in invisible two dimensional barcode shift step, numerical value according to variable information, from the invisible two dimensional barcode character library being previously installed at operating system, read the invisible two dimensional barcode of the geometric of the information that can directly record that the corresponding form with character library shows or physical distribution.
Here, described geometric invisible two dimensional barcode refers to: constitute the distribution of the diverse location of the information point of invisible two dimensional barcode, the distribution of the different directions of information point, the difform distribution of information point, the different size of distribution of information point, the distribution of information point varying number, the combination of information dot matrix is distributed in the invisible two dimensional barcode of the recordable information formed according to geometric characteristic of interior at least one form.
And described physical invisible two dimensional barcode refers to: constitute the distribution of out of phase modulation (PM) result of the information point of invisible two dimensional barcode, the distribution of different modulating mode, the distribution of the different directions of propagation, different Mechanics Vectors, the dot matrix of different frequency is distributed in interior, the invisible two dimensional barcode of the recordable information formed according to physical characteristic of at least one form.
In the next step, the invisible two dimensional barcode of the geometric of the information that can directly record showed with the form of character library or physical distribution is aligned on determined printing position, a printed data generated along with above-mentioned variable information.
Finally, it is judged that whether the process of all of variable information code is fully completed;Otherwise return second step; It is that the generation of the variable information printed data of invisible two dimensional barcode character library completes. Owing to invisible-bar-number is to occur with the form of character library, code-spraying printer or printer can process according to the form of word, therefore will be installed in code-spraying printer or printer above by the whole printed data after 4 step process, so that it may realize the printing of invisible-bar-number at a high speed.
Invisible two dimensional barcode can carry out the printing of variable information in the composing system of code-spraying printer or printer by the invisible-bar-number of character library form, can also by the mode of virtual printer, on the driver of printer, the driver of one virtual printer is installed, the driver of this virtual printer is connected by program code-spraying printer or printer, a dimensional printed chart picture it is achieved with from the driver of code-spraying printer or printer, in this dimensional printed chart picture, according on the position that user specifies, the invisible-bar-number image relevant to variable information is sticked, then, it is sent to code-spraying printer again or printer is implemented printing or prints, repeat above-mentioned operating process, finally achieve that the printing to whole variable information or printing.
The printing of variable information can also adopt the method covering printing (OverlyPrint), namely on the position that user specifies, the overall printing image that the invisible-bar-number image relevant to variable information is sticked, it is placed on and has in the internal memory specified by code-spraying printer or printer covering printing functionality, code-spraying printer or printer are automatically by this dimensional printed chart picture and tax reciept, product packaging or label dimensional printed chart picture carry out covering printing, repeat above-mentioned operating process, finally achieve that the printing to whole variable information or printing.
The printing of variable information can also adopt the method directly printed, namely by program at same tax reciept, the variable information printing position of the dimensional printed chart picture of product packaging or label, often add variable information data, and on the invisible-bar-number picture position relevant to variable information, often stick the view data of an invisible-bar-number relevant to variable information and be just sent to code-spraying printer or printer, implement printing or print, until the printing of whole variable information or be completed for printing.
Fig. 2 is the flow chart of the recognition methods of the variable information dimensional printed chart picture of a kind of invisible two dimensional barcode character library.
As shown in Figure 2: the recognition methods of the variable information dimensional printed chart picture of a kind of invisible two dimensional barcode character library is made up of three steps.
First, in the step reading invisible two dimensional barcode image, by including scanner, CCD, CMOS reads the image of the invisible two dimensional barcode of the geometric of the information that can directly record that shows with the form of character library or physical distribution at interior any one imageing sensor.
Secondly, in the step identifying invisible two dimensional barcode code value, identified the code value of invisible two dimensional barcode by the rule of the geometric of the information that can directly record that shows with the form of character library or the invisible two dimensional barcode of physical distribution.
Here, the described geometric invisible two dimensional barcode carrying out pattern recognition refers to: constitute the distribution of the diverse location of the information point of invisible two dimensional barcode, the distribution of the different directions of information point, the difform distribution of information point, the different size of distribution of information point, the invisible two dimensional barcode of the recordable information formed according to geometric characteristic being distributed in interior at least one form of the varying number of information point.
And the described physical invisible two dimensional barcode carrying out pattern recognition refers to: constitute the distribution of out of phase modulation (PM) result of the information point of invisible two dimensional barcode, the distribution of different modulating mode, the distribution of the different directions of propagation, different Mechanics Vectors, the dot matrix of different frequency is distributed in interior, the invisible two dimensional barcode of the recordable information formed according to physical characteristic of at least one form.
The above-mentioned computer graphical code showed with invisible two dimensional barcode form is the form with character library, and pictorial form, the one form of which of vector form shows.
Finally, in the step of display or output invisible two-dimensional strip code value, the code value of display or output invisible two-dimensional bar code. Whether user is consistent with the data on tax reciept or antifalsification label by the data after observation invisible-bar-number evaluator identification, thus just can differentiate whether this tax reciept or antifalsification label are real.
Evaluator is when identifying invisible two dimensional barcode, it is generally adopted infrared illumination, infrared imaging sensor is identified, the main ink considering invisible-bar-number adopts carbon containing or what powdered ink or transparent infrared ray absorbing ink etc. printed, these printed materials are utilized to have the characteristic to infrared ray absorbing, and the characteristic that infrared ray is projected by CMY color, it is thus possible to invisible-bar-number is imbedded in coloured image. When adopting thermal printer printing, due to not carbon containing in the image that thermal printer prints out, therefore can not be identified with infrared ray evaluator, the image recognizer of visible ray therefore can be adopted to be identified. In order to carry out the application of higher levels of false proof invisible-bar-number, it is also possible to take the ink of different spectrum or powdered ink to print respectively from positioning datum point the information point of invisible-bar-number. When identifying, take the alternately illumination of different spectrum, information point and positioning datum point are extracted out carry out overall identification respectively.
The invisible two dimensional barcode of the different many bit informations of directional spreding logger computer by dot matrix that the form with character library that the present invention proposes occurs is as shown in Figure 3: the invisible two dimensional barcode that site 301 is made up of information point 302 and 303, represents difference information according to the different directions that information point 302 and 303 is constituted.
In figure 3, figure a can represent that information 0, figure b can represent that information 1, figure c can represent information 2, and figure d can represent information 3. Invisible two dimensional barcode a, b, c, d obviously can regard as by different directions and different electromagnetic wave propagation directions, and different Mechanics Vector results realizes computer many bit informations record.
Fig. 4 is the schematic diagram by the different many bit informations of graphic recording computer. In the diagram, figure a can represent that information 0, figure b can represent that information 1, figure c can represent information 2, and figure d can represent information 3.
Fig. 5 is by the schematic diagram of the invisible two dimensional barcode concentrating site to constitute with dispersion site. As it is shown in figure 5, what constituted by all of printing points one dot matrix of composition in a site concentrates site a and has at least the spaced point b of a scattered site composition to constitute the example of the fine roots that can imbed information. Concentrating site a to be set as the value of information " 1 ", dispersion site b is set as the value of information " 0 ". On the contrary, it is possible to concentrating site a to be set as the value of information " 0 ", dispersion site b is set as the value of information " 1 ".
It addition, in order to constitute standard dot pattern, as shown in Figure 5: the high H of point 501 concentrating site a50As the diameter value of two printing points (the minimum printable size of printer), the width W of the point 501 concentrating site a50Diameter value as a printing points. The point 502 of dispersion site b functions only as the effect of shading gray scale homogenization, is not used in identification, the height H of the point 502 of dispersion site51With width W51All as the diameter value of a printing points. The height of site is H52, width is W52。
As shown in Figure 5, it is possible to concentrating site a to regard amplitude modulation mode i.e. (AM) screen as, it is (FM) screen that dispersion site b is regarded as mode of frequency regulation.Namely information can be recorded according to the different dot pattern of modulation system.
It addition, because can concentrating site a regard low frequency number site as, dispersion site b regards altofrequency number site as, it is possible to says and concentrates site a and disperse site b to become member record information according to different frequency number.
And then, the gray value concentrating each site of site a is big, and the gray value of each site of dispersion site b is little, thus alternatively concentrate site a and dispersion site b be the different gray values for a point record information.
In other words, the size concentrating the point of site a is big, and the size of each point of dispersion site b is little, it is possible to says and concentrates site a and dispersion site b to record information according to the dot pattern varied in size.
About above content, it is also possible to there is a lot of meanss of interpretation. If but identical with above dot pattern, belong within the scope of the present invention.
Fig. 6 is the schematic diagram being realized computer many bit informations record by information point according to the result of different positions and phase-modulation. As shown in Figure 6: figure (a) can represent information 0, figure (b) can represent information 1, figure (c) can represent that information 2 and figure (d) can represent that information 3, figure (e) and figure (f) can represent positioning datum information.
Additionally, Fig. 7 is the given invisible two dimensional barcode site 701 shown in Fig. 6, the tetra-kinds of outs of phase of a, b, c and d consisted of the some transmitting signal of the physical phase-modulation of the difference of information point 702 (PM) modulate the schematic diagram of the result of (PM).
The derivation of the mathematical model of the dot pattern being made up of phase-modulation shown in Fig. 6 and Fig. 7 is as follows.
If the function of the dot pattern being made up of the square lattice of interval T be ζ (x, y), then ζ (x, the result after y) being standardized is as follows:
Here, the signal response function for the dot pattern of phase-modulation is:
η (x-i × T, y-j × T)=η (m × T, n × T)
The level m being standardized, and the centre coordinate value of the point of vertical n-th dot pattern is (m × T, n × T), additionally the displacement function of each relative centre coordinate (m × T, n × T) of dot pattern be [ε (and m, n), δ (m, n)], then, 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}
Namely
[m × T+ ε (m, n) × T], [and n × T+ δ (m, n) × T] } ∈ D
Thus, input by signal response function η [i+ ε (m, n)] × T, [j+ δ (m, n)] × T} bring into after phase-shifted amount ζM-i, n-jOutput signal be:
Here, control ε (m, n) and δ (m, n), so that it may realize for the transmitting signal { phase-modulation of ζ m, n}.
Fig. 8 is the schematic diagram of the character library that an invisible two dimensional barcode is constituted. As shown in Figure 8: the 800 character library images constituted for invisible two dimensional barcode. 801,802,803 and 804 is information point, and each point can represent numerical value 0 to 3 shown in Fig. 6, i.e. 2 bit informations, four points just can represent numerical value 0 to 255, i.e. 8 bit informations. Each point also may indicate that numerical value 0 to 7, i.e. 3 bit informations, four points just can represent numerical value 0 to 4096, i.e. 12 bit informations.805,806 is horizontal direction positioning datum dot matrix, it is mainly used in as information point 801-804 positioning datum in the horizontal direction, or the horizontal direction initial value of phase-modulation, 808,809 is vertical direction positioning datum dot matrix, is mainly used in as information point 801-804 positioning datum in the vertical direction, or the vertical direction initial value of phase-modulation. 805 and 806, or 808 and 809 dot matrix also can represent simultaneously character library arrangement time positional information. Invisible two dimensional barcode character library lattice arrangement is possible not only to be 1 × 1 dot matrix, 1 × 2 dot matrix, 3 × 3 dot matrix, it is also possible to 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 the geometric or physical lattice arrangement that the present invention proposes, the character library being made broadly falls within the interest field of the present invention.
Fig. 9 is the schematic diagram of the complete invisible two dimensional barcode being spliced into by invisible two dimensional barcode character library. As it is shown in figure 9, a complete invisible two dimensional barcode with 9 byte information above can be spliced into by the invisible two dimensional barcode character library shown in 3 × 3 Fig. 8. Considering when carrying out the splicing of a plurality of invisible two dimensional barcode character library, the position arrangement of each character library is not necessarily very accurate, therefore, is equipped with positioning datum dot matrix in each invisible two dimensional barcode character library of Fig. 8. Certainly, when the positioning precision of character library is significantly high, it is also contemplated that the form of unified positioning datum dot matrix, namely a line string positioning datum dot matrix is only set in the whole invisible two dimensional barcode being made up of invisible two dimensional barcode character library. By the complete invisible two dimensional barcode that invisible two dimensional barcode character library is spliced into, only can be formed complete invisible two dimensional barcode by an invisible two dimensional barcode character library, complete invisible two dimensional barcode can also be formed by a plurality of invisible two dimensional barcode character libraries, as long as the geometric or physical lattice arrangement that the present invention proposes, the complete invisible two dimensional barcode formed broadly falls within the interest field of the present invention.
Figure 10 is interpolation information dot matrix in common language character library, constitutes the schematic diagram of digitized character library. As shown in Figure 10: 100 is character library, 101 is a common language image, and 102 is information point. Information point 102 is with character features for the benchmark configuration by different positions, bit information more than one can be represented, such as (a) can represent information " 0 ", b () can represent information " 1 ", c () can represent information " 2 ", d () can represent information " 3 ", e () can represent information " 4 ", f () can represent information " 5 ", g () can represent information " 6 ", (h) can represent information " 7 ".
Information point 102 can also regard the configuration of the different angles that the straight line connected into the center of word is formed as, represents bit information more than. Information point 102 can also regard the description realizing many bit informations at literal phase-modulation as. Here the number of information dot matrix also can adopt 2 according to the requirement of quantity of information, or more dot matrix. Information dot matrix also can according to the requirement of quantity of information, it is possible to the diverse location number of configuration can also is that 12 positions, 16 positions or more position. Information dot matrix can also be placed in a road of word, represents by white.
Common language character library is added information dot matrix, constitutes the main application of digitized character library, be consider the tracking of information for document files, safety management.Can also be used for the copyright certification etc. of character library.
Feature and the novelty of the present invention are in that: only need little dot matrix to achieve that the information embedment of relatively large information capacity, and the appearance effects of character library is only small.
Figure 11 is with the schematic diagram duplicating the character library forbidding that code constitutes. As shown in figure 11: 110 is forbidden, by duplicating, the character library that dot matrix forms, and 111 forbid dot pattern for duplicating. Here, duplicate and forbid that the dot pattern of code can be graphic form, it is possible to be pictorial form, it is possible to be sign format, it is possible to be written form, it is possible to be digital form, it is also possible to be bar code form, it is also possible to be the form etc. of half-tone screen code.
The novelty of the present invention and progressive are in that: when making the classified papers not allowing to duplicate, as long as just can be carried out by the mode identical with word input realizing duplicating the function forbidden. Forbid that the quantity of code can be decided in its sole discretion by user according to the needs of user it addition, add to duplicate.
The organigram of the evaluator nib that Figure 12 adopts when being identify invisible two dimensional barcode. Identify that nib is by CCD image sensor or CMOS chip 121, and sensor lens 123 is set before sensor 121, and infrared ray filter glass 124 is set before sensor lens 123, and arrange dust-proof eyeglass 127 before infrared filter 124. Each eyeglass above-mentioned is all mounted on lens barrel 128, and the infrared illumination of nib is to be tight contacted between infrared illumination light guide plate 125 by the illumination part of infrared LEDs illuminating lamp 122, infrared illumination light guide plate 125 realize the illumination to imaging surface.
Here, infrared ray filter glass 124 can not wanted, it is possible to by the form of plated film on sensor lens 123 or dust-proof eyeglass 127, it is achieved the requirement to infrared transmitting. Dust-proof eyeglass 127 is accepted or rejected also dependent on needs.
Figure 13 is the schematic diagram utilizing the color region that RGB color and CMYK color space can not convert to realize anti-counterfeit printing. The color space that general scanner uses is RGB form, and the color space that printer uses is CMYK form. As shown in figure 13: if color selecting is in the color region of RGB/CMYK, the image gone out printed by it can be replicated faithfully by scanner and print out, and namely this color region is reproducible region. Again as shown in figure 13: if selecting the image gone out printed by RGB color region or CMYK color region can not be replicated faithfully by scanner. Utilize such principle can realize the effect of anti-counterfeit printing. Such as, the color selecting K version of invisible-bar-number, can print with the image of the trichroism composition of CMY on invisible-bar-number, and for example the color of image of the fruit trichroism composition of CMY is deeper, the actual composition with black, but owing to the color of image of the trichroism composition of CMY does not contain charcoal, being transmission to infrared ray, therefore not affecting the recognition of the invisible-bar-number of K version. But, if above-mentioned image is replicated by scanner, printed by the image that goes out, the originally color of image of the composition with black of the trichroism composition of CMY, will be reflected in K version when point version, clashing with the original invisible-bar-number in K version, therefore can not correctly reading the invisible-bar-number in K version, thus reaching false proof effect.
Figure 14 is the schematic diagram with the tax reciept having invisible two dimensional barcode of 600dpi press printing. Under the printing precision of 600dpi, the invisible two dimensional barcode printed out, each index point is of a size of about 0.042mm, according to Ruili criterion, human eye can see that and is of a size of below 0.1mm, as shown in the figure: on SCURITY mark, the invisible two dimensional barcode with invoice number identical information of printing is not easily identified by naked eyes, adding invisible two dimensional barcode is be printed on by the trichroism SCURITY mark with black component formed of CMY, as it has been described above, namely use the scanner of significantly high precision to be not easy to copy invisible two dimensional barcode.Therefore can play, on a basis marking a yard, there is again not reproducible antifalse effect.
Figure 15 is the schematic diagram with the tax reciept having invisible two dimensional barcode of 200dpi press printing. Under the printing precision of 200dpi, the invisible two dimensional barcode printed out, the size of each index point is at least as about 0.13mm, can see that according to Ruili criterion human eye and be of a size of below 0.1mm, as shown in the figure: although the invisible two dimensional barcode with invoice number identical information of printing can be may be seen indistinctly on SCURITY mark, but, owing to invisible two dimensional barcode is to be printed on by the trichroism SCURITY mark with black component formed of CMY, as it has been described above, namely use photocopier or very high-precision scanner still can not copy invisible two dimensional barcode completely. Can play equally, on a basis marking a yard, there is again not reproducible antifalse effect.
Figure 16 is the schematic diagram that the combination by dot matrix realizes having the two-dimensional bar code of printing net screen characteristics. Realize another means of invisible-bar-number, it is in the set that the dot matrix of common two-dimensional bar code is distributed, find out one group of code distribution with printing net screen characteristics, recognition feature according to fixed focal length, reduces the dot matrix of code and characteristic point again, constitutes an invisible two dimensional barcode.
Figure 16 is the example of the invisible-bar-number of 20 × 20 dot matrix, and in figure, 160 is the dot pattern of the invisible-bar-number character library of 20 × 20 dot matrix, has a little 161 expression information point " 1 ", no point 162 expression information " 0 ", and dot matrix 163 around represents positioning datum dot matrix. as shown in figure 16, in the set that the dot matrix of common two-dimensional bar code is distributed, according to printing net screen characteristics, find out distribution uniform, 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, the invisible two dimensional barcode shown in Figure 16 is constituted by each group of 3 × 3 dot matrix being separated from each other, the information of point one byte of matrix representation of each 3 × 3, can be seen that, compare with ordinary two dimensional bar code, each dot matrix is separated from each other, dot matrix distribution ratio is more uniform, although comparing with above-mentioned invisible two dimensional barcode, there are some irregular distributions, but due to bigger than the quantity of information that above-mentioned invisible two dimensional barcode is noted down, therefore, there is certain Practical significance.
Additionally, for ordinary two dimensional bar code according to the needs applied, for instance increase the Hamming distances between code, reduce the similar degree between code, improve code distributing homogeneity, the maximization of code distribution area, minimizing etc. of code distribution area, it is possible to achieve various dot matrix combine, form various code form, simultaneously, it is possible to generate the character library of various dot pattern, these all belong within the scope of the present invention.
Claims (11)
1. the method realizing variable information printing by invisible two dimensional barcode character library, it is characterised in that:
(1) while printing variable information code value, on the printing position specified, computer graphical code that is a kind of relevant to variable information code value, that show is printed by invisible two dimensional barcode form;
(2) the computer graphical code that above-mentioned invisible two dimensional barcode form shows is the form with character library, pictorial form, and the one form of which of vector form shows;
(3) the above-mentioned invisible two dimensional barcode showed with character library form is for can directly record information, has a printing net screen characteristics, the dot matrix distribution of geometric or physical distribution;
The described invisible two dimensional barcode that can directly record information refers to: in the composition of the dot pattern of composition invisible two dimensional barcode, existing information dot matrix has again positioning datum dot matrix;
The described invisible two dimensional barcode with printing net screen characteristics refers to: the dot pattern constituting invisible two dimensional barcode is with identical size, the dot matrix that the site form being separated from each other is constituted; Midpoint, site should be less than being equal to dot matrix that the form of distance between points constitutes interior according to the scope that the difference of the value of information configures, the invisible two dimensional barcode that at least one latticed form in above-mentioned form is constituted;
The invisible two dimensional barcode of the dot matrix distribution of described geometric distribution refers to: constitute the dot matrix distribution of the information point diverse location of invisible two dimensional barcode, the dot matrix distribution of information point different directions, the difform dot matrix distribution of information point, the different size of dot matrix distribution of information point, the dot matrix distribution of information point varying number, the dot matrix of the various combination of information point is distributed in the invisible two dimensional barcode of the recordable information formed according to geometric characteristic of interior at least one form;
The dot matrix distribution invisible two dimensional barcode of described physical distribution refers to: constitute the dot matrix distribution of out of phase modulation (PM) result of the information point of invisible two dimensional barcode, the dot matrix distribution of different modulating mode, the dot matrix distribution of the different directions of propagation, the dot matrix distribution of different Mechanics Vectors, the dot matrix of different frequency is distributed in interior, the invisible two dimensional barcode of the recordable information formed according to physical characteristic of at least one form.
2. the recognition methods of the variable information dimensional printed chart picture of an invisible two dimensional barcode character library, it is characterised in that:
(1) use imageing sensor to read and can directly record information with what the form of character library show, there is printing net screen characteristics, the image of the invisible two dimensional barcode that geometric or physical distribution dot matrix is distributed;
(2) by can directly record information with what the form of character library show, having a printing net screen characteristics, the rule of the image construction of the invisible two dimensional barcode that geometric or physical distribution dot matrix is distributed identifies the code value of invisible two dimensional barcode;
(3) code value of display or output invisible two-dimensional bar code;
The described invisible two dimensional barcode that can directly record information refers to: in the composition of the dot pattern of composition invisible two dimensional barcode, existing information dot matrix has again positioning datum dot matrix;
The described invisible two dimensional barcode with printing net screen characteristics refers to: the dot pattern constituting invisible two dimensional barcode is with identical size, the dot matrix that the site form being separated from each other is constituted; Midpoint, site should be less than being equal to dot matrix that the form of distance between points constitutes interior according to the scope that the difference of the value of information configures, the invisible two dimensional barcode that at least one latticed form in above-mentioned form is constituted;
The invisible two dimensional barcode of the dot matrix distribution of described geometric distribution refers to: constitute the dot matrix distribution of the information point diverse location of invisible two dimensional barcode, the dot matrix distribution of information point different directions, the difform dot matrix distribution of information point, the different size of dot matrix distribution of information point, the dot matrix distribution of information point varying number, the dot matrix of the various combination of information point is distributed in the invisible two dimensional barcode of the recordable information formed according to geometric characteristic of interior at least one form;
The invisible two dimensional barcode of the dot matrix distribution of described physical distribution refers to: constitute the dot matrix distribution of out of phase modulation (PM) result of the information point of invisible two dimensional barcode, the dot matrix distribution of different modulating mode, the dot matrix distribution of the different directions of propagation, the dot matrix distribution of different Mechanics Vectors, the dot matrix of different frequency is distributed in interior, the invisible two dimensional barcode of the recordable information formed according to physical characteristic of at least one form.
3. the method that a kind of invisible two dimensional barcode character library according to claim 1 realizes variable information printing, it is characterised in that: described invisible two dimensional barcode character library refers to: each invisible two dimensional barcode character library has again the form means of the invisible two dimensional barcode character library of independence while may make up assembly form.
4. the recognition methods of the variable information dimensional printed chart picture of a kind of invisible two dimensional barcode character library according to claim 2, it is characterised in that: described invisible two dimensional barcode character library refers to: each invisible two dimensional barcode character library has again the form means of the invisible two dimensional barcode character library of independence while may make up assembly form.
5. the method that a kind of invisible two dimensional barcode character library according to claim 1 realizes variable information printing, it is characterised in that: the invisible two dimensional barcode that can directly record information refers to: the composition of the invisible two dimensional barcode that the feature constituting the positioning datum dot matrix in the dot pattern of invisible two dimensional barcode can be the form of dot matrix can also be the word mixed with dot pattern is benchmark.
6. the recognition methods of the variable information dimensional printed chart picture of a kind of invisible two dimensional barcode character library according to claim 2, it is characterised in that: the invisible two dimensional barcode that can directly record information refers to: the composition of the invisible two dimensional barcode that the feature constituting the positioning datum dot matrix in the dot pattern of invisible two dimensional barcode can be the form of dot matrix can also be the word mixed with dot pattern is benchmark.
7. the method that a kind of invisible two dimensional barcode character library according to claim 1 realizes variable information printing, it is characterised in that: the printing of variable information and the invisible two dimensional barcode relevant to variable information is the hands section taking to generate printed data with type-setting mode; The hands section of virtual printing; Cover at least one means in the means printed or directly print.
8. the method that a kind of invisible two dimensional barcode character library according to claim 1 realizes variable information printing, it is characterized in that: the information point of invisible two dimensional barcode and positioning datum point can print with the ink of same spectral characteristic or powdered ink, it is also possible to print with the ink of different spectral characteristics or powdered ink.
9. the recognition methods of the variable information dimensional printed chart picture of a kind of invisible two dimensional barcode character library according to claim 2, it is characterized in that: during invisible two dimensional barcode identification, reader can take the illumination of same spectral characteristic, the means that the information point of invisible two dimensional barcode and positioning datum point read simultaneously; Different spectral characteristic can also be taked, by lighting system alternately, the means that the information point of invisible two dimensional barcode and positioning datum point read respectively.
10. the method that a kind of invisible two dimensional barcode character library according to claim 1 realizes variable information printing, it is characterized in that: invisible two dimensional barcode character library lattice arrangement is for comprising 1 × 1 dot matrix, 1 × 2 dot matrix, the composition of the lattice matrix of at least one form in CM plural number dot matrix.
11. the recognition methods of the variable information dimensional printed chart picture of a kind of invisible two dimensional barcode character library according to claim 2, it is characterized in that: invisible two dimensional barcode character library lattice arrangement is for comprising 1 × 1 dot matrix, 1 × 2 dot matrix, the composition of the lattice matrix of at least one form in CM plural number dot matrix.
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| CN103390183B (en) * | 2012-05-09 | 2019-07-19 | 顾泽苍 | A kind of generation method of the anti-counterfeiting codes suitable for handset identity |
| CN103699922A (en) * | 2014-01-06 | 2014-04-02 | 立德高科(北京)数码科技有限责任公司 | Logistics label with dot patterns, and method and system for querying logistics information |
| CN103794136B (en) * | 2014-02-18 | 2016-02-10 | 立德高科(北京)数码科技有限责任公司 | The anti-counterfeiting mark that dot matrix and tax-control code are formed is carried out generating and knows method for distinguishing |
| CN103793806B (en) * | 2014-02-18 | 2017-01-04 | 立德高科(北京)数码科技有限责任公司 | Based on dot pattern to realize the system of logistics management and control |
| CN112743993B (en) * | 2020-09-16 | 2021-10-01 | 哈尔滨工业大学（深圳） | Method and device for safely outputting printing information, terminal equipment and medium |
| CN113592518A (en) * | 2021-08-20 | 2021-11-02 | 杭州沃朴物联科技有限公司 | Anti-counterfeiting traceability label generation and verification method based on coding rule and application |
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