CN103927575A - Encoding pattern and method and device for forming lattice graph through encoding pattern - Google Patents
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Abstract
The invention provides an encoding pattern. The encoding pattern comprises a plurality of encoding unit blocks, a direction characteristic lattice sequence, CRC bits, data reference points and code points. A method for forming a lattice graph through the encoding pattern includes the steps that decimal digits are converted into multi-bit binary digits; the multi-bit binary digits are combined into a plurality of binary arrays in sequence; the binary arrays are converted into digits with the scale with the number same as the number of code point bits; code points are implanted into the code point bits corresponding to the digits of the scale; decimal digits corresponding to the CRC bits are acquired and converted into binary digits; the binary digits are split, and a value is given to each CRC bit; whether the code points can be implanted into the CRC bits or not is distinguished. A device for implementing the method comprises an encoding pattern definition module, a conversion module a, a binary array forming module, a conversion module b, a code point implanting module, an operation module, a splitting module and a code point definition module. The encoding pattern can store a large amount of data information and has the anti-fake function.
Description
Technical field
The present invention relates to a kind of code pattern, especially a kind of pattern and method and device with formation dot pattern by coding pattern of encoding.
Background technology
At present, existing anti-counterfeiting mark pattern major part is to adopt the coding rule that is similar to OID coding techniques to generate, and can only generate the anti-counterfeiting mark of limited quantity.Its shortcoming be for: because the coding information quantity of anti-counterfeiting mark storage is little, therefore, cannot store mass data information; In addition, owing to being similar to the coding rule of OID coding techniques, belong to general and disclosed coding techniques, therefore, reduced the security performance of anti-counterfeiting mark.
Summary of the invention
For the weak point existing in the problems referred to above, the invention provides and a kind ofly can store mass data information, and have the coding pattern of anti-counterfeiting performance with by coding pattern to form method and the device of dot pattern.
For achieving the above object, the invention provides a kind of coding pattern, comprise that top area, zone line and decile are arranged on a plurality of coding unit pieces and the direction character dot matrix sequence of described zone line both sides;
The bottom of described top area is corresponding with the top of described zone line, and to form " T " font structure, described zone line, by minute settings such as described top area, is provided with a plurality of CRC check position in described top area and/or described zone line;
Described coding unit piece comprises that one with the data reference point position of data reference point and at least one code-point point with code-point position;
Described direction character dot matrix sequence is arranged in described top area and described zone line, and described direction character dot matrix sequence consists of a plurality of code-points.
Above-mentioned coding pattern, wherein, forms geometric configuration between the code-point between a plurality of described data reference point and in a plurality of described data reference point and described direction character dot matrix sequence.
Above-mentioned coding pattern, wherein, described direction character dot matrix sequence is " T " font structure, a plurality of horizontal code-point in described " T " font structure is arranged in the some position of described top area, and a plurality of code-points longitudinally in described " T " font structure are arranged in the some position of described zone line.
Above-mentioned coding pattern, wherein, the size of described code-point and described and data reference point is between 1x1 pixel～3x3 pixel, adjacent two described code-points or adjacent described code-point and the minor increment between described data reference point are between 2 pixel～8 pixels, and the size of described code pattern is between 17x17 pixel～67x67 pixel.
Above-mentioned coding pattern, wherein, the quantity of described coding unit piece is 18, by described zone line decile, is arranged on its both sides.
The invention provides a kind of coding pattern that passes through to form the method for dot pattern, comprise the following steps:
S1, the quantity of distribution mode, direction character dot matrix sequence and the CRC check position of data reference point in the quantity of coding unit piece in code pattern, coding unit piece and a plurality of code-point point position is defined;
S2, a tens digit is converted into multidigit binary digit;
S3, multidigit binary digit is merged in order, to form a plurality of scale-of-two arrays;
S4, each scale-of-two array is converted into the tens digit identical with code-point point bit quantity in coding unit piece;
S5, in the code-point point corresponding with tens digit position, implant code-point;
Thereby S6, according to the data reference point in a plurality of coding unit pieces and CRC operational formula, draw the tens digit corresponding with CRC check position, this tens digit is converted into binary digit;
S7, binary digit is split in order, make each CRC check potential energy access a tens digit corresponding thereto;
S8, tens digit is defined, to distinguish, whether in each CRC check position, implant code-point.
Above-mentioned method, wherein, in step S1, the distribution mode of a plurality of code-point points position is clockwise mode or counterclockwise mode.
Above-mentioned method, wherein, in step S7,
CRC operational formula is CRC_0～n=fun (data0～dataN).
Above-mentioned method, wherein, in step S8, definition tens digit 1 is for there being code-point, and numeral 0 is without code-point.
The present invention also provides a kind of coding pattern that passes through to form the device of dot pattern, comprising:
Coding pattern definition module, for defining the quantity of distribution mode, direction character dot matrix sequence and the CRC check position of data reference point in the quantity of code pattern coding unit piece, coding unit piece and a plurality of code-point point position;
Conversion module a, for a tens digit is converted into multidigit binary digit;
Scale-of-two array forms module, by multidigit binary digit according to merging into one group of scale-of-two array by low level to high-order order, to form a plurality of scale-of-two arrays;
Conversion module b, each scale-of-two array is converted into the system identical with code-point point bit quantity in coding unit piece numeral;
Code-point implant module, in coding unit piece, for the code-point point corresponding with system numeral implanted to a code-point;
Thereby computing module, for drawing the tens digit corresponding with CRC check position according to each data reference point of a plurality of coding unit pieces and CRC operational formula, is converted into binary digit by this tens digit;
Split module, for by binary digit according to being split by low level to high-order order, make to access a tens digit corresponding thereto by low level to each high-order CRC check potential energy;
Code-point definition module, for tens digit is defined, to distinguish, whether in each CRC check position, implant code-point.
Compared with prior art, the present invention has the following advantages:
1, the present invention by the pattern of code pattern, algorithmic rule, region unit are arranged, CRC check mechanism defines, thereby forms the dot matrix image coding scheme that has magnanimity coded message;
2, the pattern due to code pattern can carry out the specifically defined of algorithmic rule, and therefore, thereby form, several are unique and with the dot pattern of mass data information;
3, because algorithmic rule used in the present invention has privacy and originality, guarantee the difficulty that dot pattern is decrypted, made dot pattern there is anti-counterfeiting performance, can be applicable to false proof field.
Accompanying drawing explanation
Fig. 1 is the pattern diagram of code pattern of the present invention;
Fig. 2 is the pattern diagram after Fig. 1 is divided;
Fig. 3 is the enlarged drawing of A part in Fig. 1;
Fig. 4 is the process flow diagram of method part in the present invention;
Fig. 5 is the structural drawing of device part in the present invention.
Main description of reference numerals is as follows:
1-code pattern 2-top area 3-zone line
4-coding unit piece 5-direction character dot matrix sequence
6-CRC check bit 7-code-point 8-code-point point position
9-data reference point 10-data reference point position
20-coding pattern definition module 21-conversion module a 22-scale-of-two array forms module
23-conversion module b 24-code-point implant module 25-computing module
26-splits module 27-code-point definition module
Embodiment
As shown in Figure 1 to Figure 3, the invention provides a kind of coding pattern, this code pattern 1 comprises that top area 2, zone line 3 and decile are arranged on a plurality of coding unit pieces 4 and the direction character dot matrix sequence 5 of zone line both sides.
The bottom of top area 2 is corresponding with the top of zone line 3, and to form " T " font structure, zone line, by minute settings such as top area, is provided with at least three CRC check positions altogether in top area and zone line.In the present embodiment, the quantity of CRC check position is three, is respectively CRC_1, CRC_2 and CRC_3, and wherein, CRC_1 and CRC_2 are all arranged in top area, and CRC_3 is arranged in zone line.
In the present embodiment, the quantity of coding unit piece 4 is 18, and is arranged on its both sides by zone line decile, and the quantity that is arranged on the coding unit piece of zone line both sides is 9.At each coding unit piece 4, comprise that one with the data reference point position 10 of data reference point 9 and for placing eight code-point point positions 8 of code-point 7, comprises at least one position of the code-point point with code-point eight code-point point positions.Because the quantity of coding unit piece 4 is 18, therefore, at 18 coding unit pieces for being provided with altogether 18 data reference point and at least 18 code-points.
In the present embodiment, coding unit piece consists of a data reference point position 10 and eight code-point point positions 8, arranging according to clockwise mode of eight code-point point positions, thereby data reference point position is surrounded to its inner side, to form nine grids structure, eight clockwise modes in code-point point position are arranged the housing that forms nine grids.Therefore,, in each coding unit piece, be provided with a data reference point 9 and at least one code-point 7.In each coding unit piece, data reference point is all identical with the formed distribution mode in a plurality of code-point points position.
Direction character dot matrix sequence is for distinguishing the correct direction of coding pattern, and it is arranged in top area and zone line, and direction character dot matrix sequence consists of a plurality of code-points.Direction character dot matrix sequence is " T " font structure.In the present embodiment, 5 horizontal code-points in " T " font structure are arranged in the some position of top area, in " T " font structure 2 longitudinally code-point be arranged in the some position of zone line.
Data reference point Ref7～data reference point Ref24 is a data reference point separately in 18 coding unit pieces.Data reference point Ref0～data reference point Ref6 forms direction character dot matrix sequence.
Between data reference point in code-point in direction character dot matrix sequence and 18 coding unit pieces, there is geometric relationship, can carry out verification each other.The formed straight line of the formed straight line of Ref0 and Ref9, Ref14 and Ref19 and Ref0 and Ref10, Ref17 and Ref24 forms a right angle geometric figure.
The size of code pattern is between 17x17 pixel～67x67 pixel, and the size of code-point and data reference point is between 1x1 pixel～3x3 pixel, and adjacent two code-points or adjacent data reference point and the minor increment between code-point are between 2 pixel～8 pixels.
Wherein, under the 2400DPI precision of images, a code-point is 3*3 pixel size; Under the 600DPI precision of images, a code-point is 1*1 pixel size.
Under the 2400DPI precision of images, adjacent two code-point spacing sizes are 8 pixels, and this spacing is the distance from code-point center to another code-point center; Under the 600DPI precision of images, adjacent two code-point spacing sizes are 2 pixels, and this spacing is the distance from code-point center to another code-point center.Corresponding actual code-point size is about 30um to 40um.
Under the 2400DPI precision of images, the size of code pattern is 67*67 pixel; Under the 600DPI precision of images, the size of code pattern is 17*17 pixel.The size of corresponding actual code pattern is about 1000um left and right.
As shown in Figure 3, according to algorithm definition rule, by eight code-point points position according to order from small to large of numeral and adopt clockwise mode to be distributed in data reference point outside.In addition, can also be as required according to counterclockwise order, or adopt according to actual needs other modes to arrange, thus form the coding unit piece pattern of different patterns.
As shown in Figure 4, the invention provides a kind of coding pattern that passes through to form the method for dot pattern, comprise the following steps:
S1, the quantity of distribution mode, direction character dot matrix sequence and the CRC check position of data reference point in the quantity of coding unit piece in code pattern, coding unit piece and a plurality of code-point point position is defined.
Wherein, in definition code pattern, the quantity of coding unit piece is 18, and decile is arranged on the zone line both sides of code pattern.
In each coding unit piece, the quantity of code-point point position is 8, and the numeral of its representative is 1～8, and the quantity of data reference point is 1, and in 8 code-point point positions, the digital clockwise mode that puts in order, adopts according to is from small to large trapped among the outside of data reference point outward.
Direction character dot matrix sequence is " T " font structure.Should " T " font structure by 5, being horizontally installed on code-point in top area point position and 2 is longitudinally arranged on code-points in zone line point and connects and form.
The quantity of CRC check position is three, is respectively CRC_0, CRC_1 and CRC_2.Wherein, CRC_0 and CRC_1 are arranged in top area, and CRC_2 is arranged in zone line, whether have implanted code-point in the check bit of CRC_0, CRC_1 and CRC_2, need to draw according to CRC operational formula.In addition, the quantity of CRC check position is with corresponding by result of calculation, and the quantity of CRC check position more at most result of calculation is just more accurate.
S2, a tens digit is converted into 54 bit binary number.
Wherein, owing to transforming the quantity of rear resulting binary digital figure place and coding unit piece, there is corresponding relation, and in step S1, the quantity that has defined coding unit piece is 18, therefore,, in step S2, a tens digit is changed into 54 bit binary number.
S3, by 54 bit binary number according to merging into one group of scale-of-two array by low level to high-order order, every three, thereby former 54 bit binary number are formed to 18 scale-of-two arrays, and the quantity of these 18 scale-of-two arrays is corresponding with the quantity of 18 coding unit pieces.
S4, one group of scale-of-two array of extraction, and be translated into an octal digit.
In addition, owing to the quantity of the code-point point position in coding unit piece is defined as to 8 in step 1, therefore, this scale-of-two array is converted into octal digit 0～7.
S5, in coding unit piece, in code-point point position that will be corresponding with octal digit, implant a code-point.
Due to before step S5 implements, in coding unit piece, the distribution pattern of data reference point and eight code-point point positions has defined, wherein, if the numeral of eight code-point point positions of definition is 1～8, the scale-of-two array obtaining through step S4 conversion and the corresponding relation of octal digit are:
000 correspondence position is that 1,001 correspondence position is that 2,010 correspondence positions are that 3,011 correspondence positions are that 4,100 correspondence positions are that 5,101 correspondence positions are that 6,110 correspondence positions are that 7,111 correspondence positions are 8.
If the octal digit obtaining is numeral 2, in second code-point point position (representing that numeral is 2), implant a data code-point after step S4 transforms.
In addition, if the numeral of eight code-point point positions of definition is 0～7, the scale-of-two array obtaining through step S4 conversion and the corresponding relation of octal digit are:
000 correspondence position is that 0,001 correspondence position is that 1,010 correspondence position is that 2,011 correspondence positions are that 3,100 correspondence positions are that 4,101 correspondence positions are that 5,110 correspondence positions are that 6,111 correspondence positions are 7.
If the octal digit obtaining is numeral 2, in second code-point point position (representing that numeral is 1), implant a data code-point after step S4 transforms.
Thereby S6, according to each the data reference point in 18 coding unit pieces and CRC operational formula, draw after the tens digit of CRC check position, this tens digit is converted into binary digit;
Wherein, in step S6, CRC operational formula is CRC_0～2=fun (data0～data18).
If draw afterwards as calculated, the tens digit of CRC_0～CRC_2 is 6, is converted into binary digit 110 by tens digit 6.
S7, by binary digit according to being split to high-order order by low level, make to access a numerical value corresponding thereto by low level to each high-order CRC check potential energy.
Wherein, by binary digit 110, according to being split as 1,1,0 by low level to high-order order, according to low level to high-order order, be that CRC_0～CRC_2 check bit is carried out after assignment, make that CRC_0 is 0, CRC_1 is 1, CRC_2 is 2.
S8, tens digit is defined, to distinguish, whether in each CRC check position, implant code-point.
Wherein, definition numeral 1 is for there being code-point, and numeral 0 is without code-point.Therefore, CRC_0 is not for implanting code-point, and CRC_1 is for need to implant code-point, and CRC_2 is for need to implant code-point.
As shown in Figure 5, the present invention also provides a kind of coding pattern that passes through to form the device of dot pattern, comprising:
Coding pattern definition module 20, for defining the quantity of distribution mode, direction character dot matrix sequence and the CRC check position of data reference point in the quantity of code pattern coding unit piece, coding unit piece and a plurality of code-point point position.
Wherein, in definition code pattern, the quantity of coding unit piece is 18, and decile is arranged on the zone line both sides of code pattern.
In each coding unit piece, the quantity of code-point point position is 8, and the numeral of its representative is 1～8, and the quantity of data reference point is 1, and in 8 code-point point positions, the digital clockwise mode that puts in order, adopts according to is from small to large trapped among the outside of data reference point outward.
Direction character dot matrix sequence is " T " font structure.Should " T " font structure by 5, being horizontally installed on code-point in top area point position and 2 is longitudinally arranged on code-points in zone line point and connects and form.
The quantity of CRC check position is three, is respectively CRC_0, CRC_1 and CRC_2.
Conversion module a21, for a tens digit is converted into multidigit binary digit.
Owing to defining the quantity of coding unit piece, be 18, and the quantity of the rear resulting binary digital figure place of conversion and coding unit piece has corresponding relation, therefore, conversion module a21 changes into 54 bit binary number by a tens digit.
Scale-of-two array forms module 22, by multidigit binary digit according to merging into one group of scale-of-two array by low level to high-order order, to form a plurality of scale-of-two arrays.
Scale-of-two array form module 22 by 54 bit binary number according to merging into one group of scale-of-two array by low level to high-order order, every three, thereby former 54 bit binary number are formed to 18 scale-of-two arrays, and the quantity of these 18 scale-of-two arrays is corresponding with the quantity of 18 coding unit pieces.
Conversion module b23 extracts one group of scale-of-two array, and is translated into an octal digit.Owing to the quantity of the code-point point position in coding unit piece being defined as to 8, therefore, conversion module b23 is converted into octal digit 0～7 by this scale-of-two array.
By code-point implant module 24, in coding unit piece, will in the code-point point position corresponding with octal digit, implant a code-point.
Wherein, if the numeral of eight code-point point positions of definition is 1～8, the scale-of-two array obtaining through step S4 conversion and the corresponding relation of octal digit are:
000 correspondence position is that 1,001 correspondence position is that 2,010 correspondence positions are that 3,011 correspondence positions are that 4,100 correspondence positions are that 5,101 correspondence positions are that 6,110 correspondence positions are that 7,111 correspondence positions are 8.
If the octal digit obtaining is numeral 2, represent that numeral is to implant a code-point in 2 code-point point after conversion module b23 transforms.
In addition, if the numeral of eight code-point point positions of definition is 0～7, the scale-of-two array obtaining through step S4 conversion and the corresponding relation of octal digit are:
000 correspondence position is that 0,001 correspondence position is that 1,010 correspondence position is that 2,011 correspondence positions are that 3,100 correspondence positions are that 4,101 correspondence positions are that 5,110 correspondence positions are that 6,111 correspondence positions are 7.
If the octal digit obtaining is numeral 2, represent that numeral is to implant a code-point in 1 code-point point after conversion module b23 transforms.
Thereby computing module 25, for drawing the tens digit corresponding with CRC check position according to each data reference point of a plurality of coding unit pieces and CRC operational formula, is converted into binary digit by this tens digit.
Thereby according to each the data reference point in 18 coding unit pieces and CRC operational formula, draw after the tens digit of CRC check position, this tens digit is converted into binary digit;
The CRC operational formula that computing module 25 adopts is CRC_0～2=fun (data0～data18).
If draw afterwards as calculated, the tens digit of CRC_0～CRC_2 is 6, is converted into binary digit 110 by tens digit 6.
Split module 26, for by binary digit according to being split by low level to high-order order, make to access a tens digit corresponding thereto by low level to each high-order CRC check potential energy.
Wherein, split module 26 by binary digit 110 according to being split as 1,1,0 by low level to high-order order, according to low level to high-order order, be that CRC_0～CRC_2 check bit is carried out after assignment, make that CRC_0 is 0, CRC_1 is 1, CRC_2 is 2.
Code-point definition module 27, for tens digit is defined, to distinguish, whether in each CRC check position, implant code-point.
27 pairs of tens digits of code-point definition module define, and to distinguish, whether in each CRC check position, implant code-point.Wherein, definition numeral 1 is for there being code-point, and numeral 0 is without code-point.Therefore, CRC_0 is not for implanting code-point, and CRC_1 is for need to implant code-point, and CRC_2 is for need to implant code-point.
The foregoing is only preferred embodiment of the present invention, is only illustrative for invention, and nonrestrictive.Those skilled in the art is understood, and in the spirit and scope that limit, can carry out many changes to it in invention claim, revise, and even equivalence, but all will fall within the scope of protection of the present invention.
Claims (10)
1. a coding pattern, is characterized in that, comprises that top area, zone line and decile are arranged on a plurality of coding unit pieces and the direction character dot matrix sequence of described zone line both sides;
The bottom of described top area is corresponding with the top of described zone line, and to form " T " font structure, described zone line, by minute settings such as described top area, is provided with a plurality of CRC check position in described top area and/or described zone line;
Described coding unit piece comprises that one with the data reference point position of data reference point and at least one code-point point with code-point position;
Described direction character dot matrix sequence is arranged in described top area and described zone line, and described direction character dot matrix sequence consists of a plurality of code-points.
2. coding pattern according to claim 1, is characterized in that, between the code-point between a plurality of described data reference point and in a plurality of described data reference point and described direction character dot matrix sequence, forms geometric configuration.
3. coding pattern according to claim 2, it is characterized in that, described direction character dot matrix sequence is " T " font structure, a plurality of horizontal code-point in described " T " font structure is arranged in the some position of described top area, and a plurality of code-points longitudinally in described " T " font structure are arranged in the some position of described zone line.
4. according to arbitrary described coding pattern in claims 1 to 3, it is characterized in that, the size of described code-point and described and data reference point is between 1x1 pixel～3x3 pixel, adjacent two described code-points or adjacent described code-point and the minor increment between described data reference point are between 2 pixel～8 pixels, and the size of described code pattern is between 17x17 pixel～67x67 pixel.
5. coding pattern according to claim 4, is characterized in that, the quantity of described coding unit piece is 18, by described zone line decile, is arranged on its both sides.
By the pattern of encoding described in right claim 1 to form a method for dot pattern, comprise the following steps:
S1, the quantity of distribution mode, direction character dot matrix sequence and the CRC check position of data reference point in the quantity of coding unit piece in code pattern, coding unit piece and a plurality of code-point point position is defined;
S2, a tens digit is converted into multidigit binary digit;
S3, multidigit binary digit is merged in order, to form a plurality of scale-of-two arrays;
S4, each scale-of-two array is converted into the system identical with code-point point bit quantity in coding unit piece numeral;
S5, in the code-point point corresponding with system numeral, implant code-point;
Thereby S6, according to the data reference point in a plurality of coding unit pieces and CRC operational formula, draw the tens digit corresponding with CRC check position, this tens digit is converted into binary digit;
S7, binary digit is split in order, make each CRC check potential energy access a tens digit corresponding thereto;
S8, tens digit is defined, to distinguish, whether in each CRC check position, implant code-point.
7. method according to claim 6, is characterized in that, in step S1, the distribution mode of a plurality of code-point points position is clockwise mode or counterclockwise mode.
8. method according to claim 6, is characterized in that, in step S7, CRC operational formula is CRC_0～n=fun (data0～dataN).
9. method according to claim 6, is characterized in that, in step S8, definition tens digit 1 is for there being code-point, and numeral 0 is without code-point.
10. a device that implements the claims method described in 6, is characterized in that, comprising:
Coding pattern definition module, for defining the quantity of distribution mode, direction character dot matrix sequence and the CRC check position of data reference point in the quantity of code pattern coding unit piece, coding unit piece and a plurality of code-point point position;
Conversion module a, for a tens digit is converted into multidigit binary digit;
Scale-of-two array forms module, by multidigit binary digit according to merging into one group of scale-of-two array by low level to high-order order, to form a plurality of scale-of-two arrays;
Conversion module b, each scale-of-two array is converted into the system identical with code-point point bit quantity in coding unit piece numeral;
Code-point implant module, in coding unit piece, for the code-point point corresponding with system numeral implanted to a code-point;
Thereby computing module, for drawing the tens digit corresponding with CRC check position according to each data reference point of a plurality of coding unit pieces and CRC operational formula, is converted into binary digit by this tens digit;
Split module, for by binary digit according to being split by low level to high-order order, make to access a tens digit corresponding thereto by low level to each high-order CRC check potential energy;
Code-point definition module, for tens digit is defined, to distinguish, whether in each CRC check position, implant code-point.
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| CN106779732A (en) * | 2016-11-22 | 2017-05-31 | 中食安电子商务服务有限公司 | 18 decimal codeds are converted into can the binary-coded method of error detection |
| CN108665040A (en) * | 2017-04-02 | 2018-10-16 | 田雪松 | Coding method based on label |
| CN111397510A (en) * | 2020-03-24 | 2020-07-10 | 青岛罗博智慧教育技术有限公司 | Digital track recording device and coordinate calibration method |
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| CN108665040A (en) * | 2017-04-02 | 2018-10-16 | 田雪松 | Coding method based on label |
| CN111397510A (en) * | 2020-03-24 | 2020-07-10 | 青岛罗博智慧教育技术有限公司 | Digital track recording device and coordinate calibration method |
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