CN105279539A - Dot-matrix two-dimensional code coding and decoding - Google Patents
Dot-matrix two-dimensional code coding and decoding Download PDFInfo
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- CN105279539A CN105279539A CN201410248931.3A CN201410248931A CN105279539A CN 105279539 A CN105279539 A CN 105279539A CN 201410248931 A CN201410248931 A CN 201410248931A CN 105279539 A CN105279539 A CN 105279539A
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Abstract
The invention belongs to the technical field of information storage and identification, and provides a two-dimensional code coding and decoding scheme. A dot-matrix two-dimensional code is a matrix two-dimensional code formed by solid dots and blank dots which are arranged according to a two-dimensional matrix mode. The dot-matrix two-dimensional code is composed of a head border area, a tail border area, a start area, an end area and a data area. The data area is arranged in the middle position of the two-dimensional code. The head border area is arranged at the upper end of the data area, the tail border area is arranged at the lower end, the start area is arranged at the left side and the end area is arranged at the right side. The dot-matrix two-dimensional code is suitable for coding machine and printing output so that a problem that the two-dimensional code is not suitable for automatic assembly line output can be solved.
Description
Technical field
The invention belongs to information storage, recognition technology field, is a kind of coding of Quick Response Code, decoding scheme.
Background technology
Current two-dimension is well applied in every field, and such as logistics, false proof, message reference, advertisement pushing, commodity transaction, electronic certificate etc., Quick Response Code has the advantage that recognition speed is fast, the bit error rate is low, information storage is large.
Current conventional Quick Response Code about nearly ten kinds, such as QR code, DM code, Code49 code, Code16K code, PDF417 code, CP code, field character code, CodeOne code, Aztec codes etc., although these Quick Response Codes all have employed correcting data error technology to ensure the integrality of data, reliability, but higher to all requirements of Quick Response Code printing, and in industrialization, today of informationized society, plant produced is all based on automatic production line substantially, and the most general on automatic production line is coder to the equipment of output encoder on commodity, along with the progress of technology, the resolution of a lot of coder output encoder is more and more higher, can get bar code, two-dimensional bar code, but this is what to sacrifice the speed of stamp be cost, and automatic production line runs up, therefore on streamline, be difficult to have seen which factory adopts coder to beat bar code or two-dimensional bar code, common is then use coder to print character, and content is generally batch number, be up to the standards information etc., and the character continuity exported due to coder is poor, has obvious dot matrix feature, is difficult to use OCR system to identify.
Summary of the invention
The object of the invention is the deficiency solving current two-dimensional bar code, provide a kind of Quick Response Code being applicable to coder and exporting, this Quick Response Code can adopt again mode of printing to export simultaneously.
Technical scheme of the present invention is: dot matrix Quick Response Code comprises sintering, end zone, in front battery limit (BL), trailing edge battery limit (BL), data field, and dot matrix arranges according to row, column, is made up of solid dot and blank spot; Dot matrix Quick Response Code is matrix type Quick Response Code, and the row of dot matrix Quick Response Code is more than or equal to 3, arranges the sintering according to dot matrix Quick Response Code, end zone, in front battery limit (BL), trailing edge battery limit (BL), data field size generate automatically; Sintering is more than or equal to 3 row, form with the dot matrix that battery limit (BL), trailing edge battery limit (BL) connect in front up and down, wherein the first row of sintering is all made up of solid dot with last row, middle column is made up of continuous print solid dot and continuous print blank spot, for distinguishing the reference position of data field coding, the first row of sintering aligns with first lattice point of battery limit (BL), trailing edge battery limit (BL) in front; End zone is more than or equal to 3 row, form with the dot matrix that battery limit (BL), trailing edge battery limit (BL) connect in front up and down, wherein middle column is made up of continuous print solid dot and continuous print blank spot, distinguish the reference position of data field coding together with sintering, last row of end zone align with last lattice point of battery limit (BL), trailing edge battery limit (BL) in front; Battery limit (BL) is positioned at the first row of dot matrix Quick Response Code in front, is made up of one group of continuous print solid dot, and starting and ending position is first row and last row of dot matrix Quick Response Code; Trailing edge battery limit (BL) is positioned at the last line of dot matrix Quick Response Code, is made up of one group of continuous print solid dot, and starting and ending position is first row and last row of dot matrix Quick Response Code; Data field content data and error correcting code, said shank, filler code, can export as solid dot, binary zero export as blank spot by definition binary one, or definition binary zero exports as solid dot, binary one export as blank spot generates the dot matrix of whole data field, the said shank definition character set of content-data and the length of coded format, error correction algorithm and level of error correction and content-data and error correcting code or the length of fill area, be positioned at data field foremost and rearmost end, two numbers are according to backuping each other; Content-data and error correction code bits after the said shank information of front end, continuous arrangement; Fill area is positioned at the rear end of content-data and error correcting code, is the lattice point of filling after content-data and error correcting code when the content of content-data, error correcting code, said shank can not be booked last row of data field, can be solid dot also can be blank spot.
The output of dot matrix Quick Response Code has apparent colour contrast and the high-visible clear area of reservation continuously between solid dot for standard with solid dot and background, and solid dot is round, ellipse, polygon or square.
When decoding dot matrix Quick Response Code, first the digital picture comprising whole dot matrix Quick Response Code is obtained by digital optical devices, removed by the pre-service of digital picture and export at dot matrix Quick Response Code, use, the noise that image acquisition process produces, obtain the digital picture of dot matrix Quick Response Code clearly, again according to sintering, end zone, battery limit (BL) in front, the solid dot correcting image of trailing edge battery limit (BL), pass through sintering afterwards, end zone, battery limit (BL) in front, the two-dimensional spatial location information scanning whole dot matrix Quick Response Code digital picture of trailing edge battery limit (BL) solid dot, obtain all solid dot in data field, the two-dimensional spatial location information of blank spot, it is a two-dimensional matrix be made up of 1 and 0 by this information MAP, again according to sintering, end zone middle column solid dot, the distribution of blank spot confirms the reference position that data zone information reads, said shank information is obtained from two-dimensional matrix, content-data and error correcting code is obtained according to content-data in said shank information and error correction code length or fill area length, error correction algorithm and the level of error correction of data is obtained by reading format coded message, error correction is carried out to content-data, character set and the coded format of content-data is obtained by reading format coded message, content-data is encoded, generate and export data.
Accompanying drawing explanation
Fig. 1 dot matrix Quick Response Code figure.
Fig. 2 dot matrix Quick Response Code subregion schematic diagram.
Fig. 3 dot matrix two-dimensional code data distinguishes district's schematic diagram.
Fig. 4 dot matrix Quick Response Code two-dimensional spatial location information and data field dot matrix mapping (enum) data table.
Character " G " the dot matrix output figure that Fig. 5 encodes based on ASCII.
Character " G " the dot matrix output figure that Fig. 6 encodes based on ASCII.
In figure, 1-is battery limit (BL) in front, 2-sintering, 3-end zone, 4-data field, 5-trailing edge battery limit (BL), 6-fill area, 7-said shank district, 8-content-data and error correcting code district, 9-data field maps two-dimensional matrix coding schedule, 10-fill area, 11-said shank district, 12-content-data and error correcting code district.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
At informatization, all information can be expressed as a binary sequence be made up of 0 and 1, such as in ascii character table, character " G " is just expressed as " 01000111 " binary sequence, " 0 " in this binary sequence is expressed as blank spot " 1 " and is expressed as "●" output piece image, as shown in Figure 5, the digital picture of this width image is obtained by digit optical system, be expressed as " 0 " according to blank spot, "●" is expressed as " 1 ", blank spot in digital picture and "●" are identified, so we just can obtain " 01000111 " binary sequence again, that identify that the image shown in Fig. 5 represents is ASCII coded character " G ", in like manner, " 0 " in the binary sequence " 01000111 " of character representation " G " is expressed as "●", " 1 " is expressed as blank spot and exports piece image, as shown in Figure 6, the digital picture of this width image is obtained by digit optical system, represent " 1 " according to blank spot, "●" is expressed as " 0 ", blank spot in this width digital picture and "●" are identified, " 01000111 " binary sequence can be obtained, that identify that image shown in Fig. 6 represents is ASCII coded character " G ", therefore in the data encoding of dot matrix Quick Response Code, two schemes are had to select: 1. blank spot represents binary zero, solid dot represents binary one, 2. blank spot represents binary one, solid dot represents binary zero, but an encoding scheme can only be selected in one application.
As shown in Figure 1, dot matrix Quick Response Code is pressed two-dimensional matrix by solid dot and blank spot at two-dimensional space and is arranged, there is between solid dot and background clear and legible colour contrast, between solid dot, retain apparent clear area, to facilitate the analyzing and processing to digital picture; Solid dot is round, ellipse, polygon or square; Dot matrix Quick Response Code is matrix type Quick Response Code, and the line number of dot matrix Quick Response Code is more than or equal to 3.
As shown in Figure 2, dot matrix Quick Response Code is by battery limit (BL) (1), sintering (2), end zone (3), data field (4), trailing edge battery limit (BL) (5) form in front; Battery limit (BL) (1) is positioned at the first row of dot matrix Quick Response Code in front, is made up of one group of solid dot, and starting and ending position is first row and last row of dot matrix Quick Response Code; Trailing edge battery limit (BL) (5) is positioned at last column of dot matrix Quick Response Code, is made up of one group of solid dot, and starting and ending position is first row and last row of dot matrix Quick Response Code; Sintering (2) is positioned in front between battery limit (BL) (1) and trailing edge battery limit (BL) (5), connect with battery limit (BL) (1) and trailing edge battery limit (BL) (5) in front up and down, for being more than or equal to 3 row dot matrix compositions, wherein the first row of sintering (2) is all made up of solid dot with last row, middle column is made up of continuous print solid dot and continuous print blank spot, for distinguishing the reference position of data field coding, the first row of sintering (2) aligns with first lattice point of battery limit (BL) (1), trailing edge battery limit (BL) (5) in front; End zone (3) is positioned in front between battery limit (BL) (1) and trailing edge battery limit (BL) (5), connect with battery limit (BL) (1) and trailing edge battery limit (BL) (5) in front up and down, for being more than or equal to 3 row dot matrix compositions, wherein the first row of end zone (3) is all made up of solid dot with last row, middle column is made up of continuous print solid dot and continuous print blank spot, for distinguishing the reference position of data field coding, last row of end zone (3) align with last lattice point of battery limit (BL) (1), trailing edge battery limit (BL) (5) in front; Data field (4) is positioned in front between battery limit (BL) (1), trailing edge battery limit (BL) (5), sintering (2), end zone (3), connect with battery limit (BL) (1) and trailing edge battery limit (BL) (5) in front up and down, left and right arranges with last of sintering (2) and the first row of end zone (3) connects, for placed content data and relevant data.
As shown in Figure 3, dot matrix two-dimensional code data district is made up of fill area (6), said shank district (7), content-data and error correcting code district (8); Fill area (6) is when the content in said shank district (7) and content-data and error correcting code district (8) cannot be booked whole data field, is carried out the region of filling by blank spot or solid dot; Said shank district (7) is for depositing the character set of content-data and the length of coded format, error correction algorithm and level of error correction and content-data and error correcting code or the length information of fill area, be made up of two parts of identical codings of content, backup each other, to improve the reliability of dot matrix Quick Response Code, lay respectively at data field foremost and rearmost end; Content-data and error correcting code district (8) are for depositing the error correcting code of content-data and content-data.
As shown in Figure 4, dot matrix Quick Response Code is a two-dimensional matrix at two-dimensional space, in front battery limit (BL) (1), the up-and-down boundary of trailing edge battery limit (BL) (5) identification point configuration Quick Response Code, use the two-dimensional spatial location information often arranged in the solid dot locator data district (4) that battery limit (BL) (1) and trailing edge battery limit (BL) (5) is corresponding in front simultaneously, the right boundary of the first row of sintering (2) and last row identification point configuration Quick Response Code of end zone (3), last row of sintering (2) and the first row of end zone (3) identify the end position of sintering (2) and the reference position of end zone (3), same battery limit (BL) (1) and trailing edge battery limit (BL) (5) in front cooperatively locator data district (4) left and right is initial, end position and initial up and down, end position, simultaneously by first row and last row of sintering (2), the two-dimensional spatial location information of often going of the data field (4) of the solid dot anchor point configuration Quick Response Code of the first row of end zone (3) and last row, with the row of data field (4), based on column position information, to data field (4) often row, the solid dot often arranged and blank spot identify, and result is stored into data field mapping two-dimensional matrix coding schedule (9), the content of reading format code area (11) two-dimensional matrix coding schedule (9) is mapped from data field, length information according to content-data and error correcting code in said shank information maps content data and error correcting code district (12) content in two-dimensional matrix coding schedule (9) in data field, obtain content-data and error correcting code, and according to the error correction code algorithms recorded in said shank information and level of error correction, error correction is carried out to content-data, according to the character set recorded in said shank information and said shank, the content-data after error correction is generated output data.
Claims (5)
1. a dot matrix Quick Response Code, comprises battery limit (BL) (1), sintering (2), end zone (3), data field (4), trailing edge battery limit (BL) (5) in front; Battery limit (BL) (1) is positioned at the first row of dot matrix Quick Response Code in front, is made up of one group of solid dot, and starting and ending position is first row and last row of dot matrix Quick Response Code; Trailing edge battery limit (BL) (5) is positioned at last column of dot matrix Quick Response Code, is made up of one group of solid dot, and starting and ending position is first row and last row of dot matrix Quick Response Code; Sintering (2) is positioned in front between battery limit (BL) (1) and trailing edge battery limit (BL) (5), connect with battery limit (BL) (1) and trailing edge battery limit (BL) (5) in front up and down, for being more than or equal to 3 row dot matrix compositions, wherein the first row of sintering (2) is all made up of solid dot with last row, middle column is made up of continuous print solid dot and continuous print blank spot, and the first row of sintering (2) aligns with first lattice point of battery limit (BL) (1), trailing edge battery limit (BL) (5) in front; End zone (3) is positioned in front between battery limit (BL) (1) and trailing edge battery limit (BL) (5), connect with battery limit (BL) (1) and trailing edge battery limit (BL) (5) in front up and down, for being more than or equal to 3 row dot matrix compositions, wherein the first row of end zone (3) is all made up of solid dot with last row, middle column is made up of continuous print solid dot and continuous print blank spot, for distinguishing the reference position of data field coding together with sintering (2), last row of end zone (3) align with last lattice point of battery limit (BL) (1), trailing edge battery limit (BL) (5) in front; Data field (4) is positioned in front between battery limit (BL) (1), trailing edge battery limit (BL) (5), sintering (2), end zone (3), connect with battery limit (BL) (1) and trailing edge battery limit (BL) (5) in front up and down, last of left and right and sintering (2) arranges and the first row of end zone (3) connects.
2. dot matrix Quick Response Code according to claim 1, is characterized in that the data field (4) of described dot matrix Quick Response Code is made up of fill area (6), said shank district (7), content-data and error correcting code district (8); Fill area (6) is when the content in said shank district (7) and content-data and error correcting code district (8) cannot be booked whole data field, is carried out the region of filling by blank spot or solid dot; Said shank district (7) is for depositing the character set of content-data and the length of coded format, error correction algorithm and level of error correction and content-data and error correcting code or the length information of fill area, be made up of two parts of identical codings of content, backup each other, lay respectively at data field foremost and rearmost end; The error correcting code of content-data and content-data is deposited in content-data and error correcting code district (8).
3. dot matrix Quick Response Code according to claim 1, it is characterized in that described dot matrix Quick Response Code is arranged by two-dimensional matrix at two-dimensional space by solid dot and blank spot, there is between solid dot and background clear and legible colour contrast, between solid dot, retain apparent clear area; Solid dot is round, ellipse, polygon or square; Dot matrix Quick Response Code is matrix type Quick Response Code, and the line number of dot matrix Quick Response Code is more than or equal to 3.
4. dot matrix Quick Response Code according to claim 1, it is characterized in that described dot matrix Quick Response Code when identifying with in front battery limit (BL) (1), trailing edge battery limit (BL) (5), the first row of sintering (2) and last row of end zone (3) determine the border of dot matrix Quick Response Code, determine that the coding of data field (4) starts direction with sintering (2) and the middle column solid dot of end zone (3) and the distribution of blank spot, with in front battery limit (BL) (1), trailing edge battery limit (BL) (5), the left and right in last row of sintering (2) and the first row locator data district (4) of end zone (3) is initial, end position and initial up and down, end position, with the positional information that the solid dot positional information locator data district (4) that battery limit (BL) (1) and trailing edge battery limit (BL) (5) is in front corresponding often arranges, the positional information of the every a line in corresponding solid dot positional information locator data district (4) is arranged with the first row of sintering (2) and end zone (3) and last, then according to the digital picture of the positional information analyzing spot configuration Quick Response Code of data field (4) ranks point of crossing, identifying this band of position is blank spot or solid dot, thus the identification in complete paired data district, and result is stored in data field mapping two-dimensional matrix coding schedule (9), the content of reading format code area (11) two-dimensional matrix coding schedule (9) is mapped from data field, according to length or fill area length information content data and error correcting code district (12) content in data field mapping two-dimensional matrix coding schedule (9) of content-data and error correcting code in said shank information, obtain content-data and error correcting code, and according to the error correction code algorithms in said shank information and level of error correction, error correction is carried out to content-data, according to the character set recorded in said shank information and said shank, the content-data after error correction is generated output data.
5. dot matrix Quick Response Code according to claim 2, it is characterized in that matrix dot in the data field (4) of described dot matrix Quick Response Code exports and has two schemes: 1. blank spot represents binary zero, solid dot represents binary one, 2. blank spot represents binary one, solid dot represents binary zero; But a scheme can only be selected in one application.
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Application publication date: 20160127 |