CN103400176A - Digital character encoding and identification method thereof - Google Patents
Digital character encoding and identification method thereof Download PDFInfo
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- CN103400176A CN103400176A CN2013103633054A CN201310363305A CN103400176A CN 103400176 A CN103400176 A CN 103400176A CN 2013103633054 A CN2013103633054 A CN 2013103633054A CN 201310363305 A CN201310363305 A CN 201310363305A CN 103400176 A CN103400176 A CN 103400176A
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Abstract
The invention discloses digital character encoding and an identification method thereof, and belongs to the technical field of digital encoding. A graph of the digital character encoding consists of a concentric frame, wherein a small square consisting of a black block and a white triangle is arranged in the middle of the concentric frame; a concentric circle is arranged outside the small square; a large square is arranged outside the concentric circle; and a cross-shaped frame is arranged between the large square and the concentric circle. The encoding scheme is simple and easy to learn, standardizes handwriting, and is suitable for computer automation identification, and an encoding area has the characteristics of location, orientation and tamper prevention.
Description
Technical field:
The invention belongs to the digital coding field, be specifically related to a kind of numerical character coding and recognition methods thereof.
Background technology:
Along with the development of social modernization, the identification of handwritten numeral, become the important step of accelerating information process-.Mainly using the processing data information field that is comprised of numeral has: statistical report form, financial statement, bank money etc., its groundwork is correctly to read the data that need, and these data are all completed by hand-written, so the identification handwritten numeral has just become a committed step of an information process-.At present the Handwritten Digit Recognition method mainly for be hand-written arabic numeral, accept passively Protean handwritten numeral, the identification difficulty is very large.
Summary of the invention:
The present invention is directed to the problem that exists in existing numerical character coding and recognition technology thereof, a kind of numerical character coding and recognition methods thereof are provided.
The figure of a kind of numerical character coding provided by the present invention is comprised of " returning " glyph framework, the little square that the center section of described " returning " glyph framework is comprised of black patch 1 and white triangles shape 2, described little foursquare outside is a concentric circles 3, described concentrically ringed outside is large square, and the centre of described large square and described concentric circles 3 is cross-shape frames 4.
Four dihedrals of described " returning " glyph framework are the numerical character coding region as the zone of " L ", and described white triangles shape 2 zone pointed is the C1 zone, and other three zones are respectively C2, C3, C4 zone in the direction of the clock; Described C1, C2, C3, C4 zone are by corresponding digital 1,2,4,7 codings.When representative digit 1, namely in described C1 zone, draw a diagonal line and be parallel to this cornerwise virgule; Numeral 2 o'clock, namely draw a diagonal line and be parallel to this cornerwise virgule in described C2 zone; Numeral 4 o'clock, namely draw a diagonal line and be parallel to this cornerwise virgule in described C3 zone; Numeral 7 o'clock, namely draw a diagonal line and be parallel to this cornerwise virgule in described C4 zone.Numeral 3, by described C1, C2 areacombined coding, namely respectively draw a diagonal line in described C1, C2 zone; Numeral 5, by described C1, C3 areacombined coding, namely respectively draw a diagonal line in described C1, C3 zone; Numeral 6, by described C2, C3 areacombined coding, namely respectively draw a diagonal line in described C2, C3 zone; Numeral 8, by described C1, C4 areacombined coding, namely respectively draw a diagonal line in described C1, C4 zone; Numeral 9, by described C2, C4 areacombined coding, namely respectively draw a diagonal line in described C2, C4 zone; Numeral 0, by described C3, C4 areacombined coding, namely respectively draw a diagonal line in described C3, C4 zone.
The coded system of ten numerals is different, and a numerical character can only can only be drawn diagonal line and virgule during by a regional code by a zone or two areacombined codings, and during by two areacombined codings, a diagonal line can only be drawn in each zone.Other any type of codings are all invalid, so numeric coding scheme of the present invention has anti-tamper function.
The particular content of described numerical character code recognition method is as follows:
at first by described numerical coding graph scanning or take pictures, form digital picture, then described digital picture is carried out to binary conversion treatment, shape facility by the black patch 1 in described numerical coding figure and white triangles shape 2, realize the first location of coding region, then in conjunction with the feature of described concentric circles 3 and cross-shape frame 4, realize that coding region accurately locates, realize that according to described white triangles shape 2 thereby the coding region orientation finds described regional C1, then according to the described C2 in clockwise direction location, C3, the C4 zone, to described C1, C2, C3, diagonal line in tetra-coding regions of C4 and virgule are identified and are obtained coded digital.
In actual applications, the numeral 1,2,4,7 in four zones can be pre-printed, also can not print, and during the number completion word, only needs the setting-out mark for numerical coding.
The present invention has following characteristics:
1, the numerical character coding is easy to learn, and standard is hand-written, during coding, only needs the picture straight line.
2, coding region has location, directed and anti-tamper feature, is suitable for computer automation identification, can facilitate accurately and identify coded numeral by Digital Image Processing.
The accompanying drawing explanation:
Fig. 1 is " returning " glyph framework schematic diagram in numerical character coding of the present invention.
Fig. 2 is the coding schematic diagram of each numeral of the present invention.
In figure: 1: black patch; 2: white triangles shape; 3: concentric circles; 4: cross-shape frame.
Embodiment:
As shown in Figure 1, the little square that is formed by black patch 1 and white triangles shape 2 in the middle of " returning " glyph framework in numerical character coding of the present invention, little square outside is a concentric circles 3, the concentric circles outside is large square.Large square is cross-shape frames 4 with the centre of concentric circles 3.Four numerals are arranged in " returning " glyph framework, select wherein one or two numeral, complete the coding to 1,2,3,4,5,6,7,8,9,0 these ten numerals.By black patch 1 and white triangles shape 2, realize numerical coding zone Primary Location, white triangles shape 2 is realized the coding region orientation, and concentric circles 3 and cross-shape frame 4 are realized accurately location and confirmation.
" go back to " zone of four dihedrals of glyph framework as " L ", be the numerical character coding region, white triangles shape 2 zone pointed is the C1 district, and in the direction of the clock, other three zones are respectively C2, C3, C4.C1, C2, C3, C4 zone be by corresponding digital 1,2,4,7 codings, namely when a representative digit 1 or 2 or 4 or 7, just in C1, the C2 of correspondence, C3, C4 district, draws a diagonal line and be parallel to this cornerwise virgule.Numeral 3, by C1, C2 areacombined coding, namely respectively draw a diagonal line in these two zones; Numeral 5, by C1, C3 areacombined coding, namely respectively draw a diagonal line in these two zones; Numeral 6, by C2, C3 areacombined coding, namely respectively draw a diagonal line in these two zones; Numeral 8, by C1, C4 areacombined coding, namely respectively draw a diagonal line in these two zones; Numeral 9, by C2, C4 areacombined coding, namely respectively draw a diagonal line in these two zones; Numeral 0, by C3, C4 areacombined coding, namely respectively draw a diagonal line in these two zones.The coded system of ten numerals is different, and a numerical character can only can only be drawn diagonal line and virgule during by a regional code by a zone or two areacombined codings, and during by two areacombined codings, a diagonal line can only be drawn in each zone.Other any type of codings are all invalid, so numeric coding scheme of the present invention has anti-tamper function.Specific coding is shown in Fig. 2.
If the little square length of side is unit 1, white triangles shape 2 is equilateral right-angle triangle, and the length of side is 2/3; Concentric circles 3 radiuses are 1, and live width is 0.15; The large foursquare length of side is 4, and live width is 0.075; The live width of cross-shape frame 4 is 0.15.
Numerical character coding of the present invention is identified by the following method:
At first by the numerical coding graph scanning or take pictures, form digital picture, then image is carried out to binary conversion treatment.Shape facility by the black patch 1 in coded graphics and white triangles shape 2, realize the first location of coding region, in conjunction with the feature of concentric circles 3 and cross-shape frame 4, realize that coding region accurately locates, white triangles shape 2 is realized the coding region orientation, find regional C1, then according to clockwise direction, locate other zones, diagonal line and virgule in four coding regions are identified, obtain coded digital.
The present invention has application prospect very widely, is below typical case's application of the present invention:
1, the application in data statistics
Large-scale data statistics (generaI investigation, statistical report form etc.), for example, need the various information that typing is relevant to identity in demographics, wherein data are the chief component of information.These data are inputted by craft, need a large amount of manpower and materials, and in this class work, adopt photoelectricity character reading technology (OCR) to become a kind of trend.And digital back-shaped coding can the standard handwritten numeral, and then the numeral after scanning encoding becomes digital picture, by simple process the identification of computing machine, reach the purpose of Rapid input, and discrimination is very high.
2, the application in the financial industry such as financial statement, bank money
The financial industry such as financial statement, bank money is the industry that digital back-shaped coding is mainly applied.In these industries, bank return, tax bill, check etc. are all to come into contacts with numeral, if the back-shaped coding of Applied Digital is processed these data automatically with computing machine, the staff will save a lot of time so, and work efficiency is higher.Because the back-shaped coding of numeral can represent various numerals exactly, and when Digital Image Processing, can locate accurately coding region, orientation, can also be anti-tamper, have very high reliability, so certainly can play an important role aspect financial business.
Claims (4)
1. a numerical character is encoded, the figure that it is characterized in that this numerical character coding is comprised of " returning " glyph framework, the little square that the center section of described " returning " glyph framework is comprised of black patch (1) and white triangles shape (2), described little foursquare outside is a concentric circles (3), described concentrically ringed outside is large square, and the centre of described large square and described concentric circles (3) is cross-shape frame (4).
2. numerical character according to claim 1 is encoded, four dihedrals that it is characterized in that described " returning " glyph framework are the numerical character coding region as the zone of " L ", described white triangles shape (2) zone pointed is (C1) zone, and other three zones are respectively (C2), (C3), (C4) zone in the direction of the clock; Described (C1), (C2), (C3), (C4) zone are by corresponding digital 1,2,4,7 codings.When representative digit 1, namely in described (C1) zone, draw a diagonal line and be parallel to this cornerwise virgule; Numeral 2 o'clock, namely draw a diagonal line and be parallel to this cornerwise virgule in described (C2) zone; Numeral 4 o'clock, namely draw a diagonal line and be parallel to this cornerwise virgule in described (C3) zone; Numeral 7 o'clock, namely draw a diagonal line and be parallel to this cornerwise virgule in described (C4) zone.Numeral 3, by described (C1), (C2) areacombined coding, namely respectively draw a diagonal line in described (C1), (C2) zone; Numeral 5, by described (C1), (C3) areacombined coding, namely respectively draw a diagonal line in described (C1), (C3) zone; Numeral 6, by described (C2), (C3) areacombined coding, namely respectively draw a diagonal line in described (C2), (C3) zone; Numeral 8, by described (C1), (C4) areacombined coding, namely respectively draw a diagonal line in described (C1), (C4) zone; Numeral 9, by described (C2), (C4) areacombined coding, namely respectively draw a diagonal line in described (C2), (C4) zone; Numeral 0, by described (C3), (C4) areacombined coding, namely respectively draw a diagonal line in described (C3), (C4) zone.
3. numerical character coding according to claim 1, is characterized in that the described little foursquare length of side is unit 1, and described white triangles shape (2) is equilateral right-angle triangle, and the length of side is 2/3; The radius of described concentric circles (3) is 1, and the live width of described concentric circles (3) is 0.15; The described large foursquare length of side is 4, and described large foursquare live width is 0.075; The live width of described cross-shape frame (4) is 0.15.
4. the recognition methods of the described numerical character coding of claim 1 is characterized in that this recognition methods particular content is as follows:
at first by described numerical coding graph scanning or take pictures, form digital picture, then described digital picture is carried out to binary conversion treatment, shape facility by the black patch (1) in described numerical coding figure and white triangles shape (2), realize the first location of coding region, then in conjunction with the feature of described concentric circles (3) and cross-shape frame (4), realize that coding region accurately locates, according to described white triangles shape (2) thus realize the directed described zone (C1) of finding of coding region, then according to clockwise direction location described (C2), (C3), (C4) zone, to described (C1), (C2), (C3), (C4) diagonal line in four coding regions and virgule are identified and are obtained coded digital.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110232364A (en) * | 2019-06-18 | 2019-09-13 | 华中师范大学 | A kind of answering card page number recognition methods and device |
| CN113610206A (en) * | 2021-08-19 | 2021-11-05 | 北京印刷学院 | Two-dimensional code and encryption and decryption method thereof |
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|---|---|---|---|---|
| FR2569884A1 (en) * | 1978-09-20 | 1986-03-07 | Guillotin Gwenael | Writing of figures called "standard" figures on a document from figures "8" appearing on the latter |
| CN86102937A (en) * | 1986-04-28 | 1987-01-24 | 王迎旭 | A kind of formatting identifying method for postcode |
| CN1438607A (en) * | 2002-08-14 | 2003-08-27 | 卢文涛 | Digital figure-drawing method and use thereof |
| CN101025785A (en) * | 2007-03-28 | 2007-08-29 | 杨德明 | Two-dimensional histogram digital image identification code |
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2013
- 2013-08-20 CN CN201310363305.4A patent/CN103400176B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2569884A1 (en) * | 1978-09-20 | 1986-03-07 | Guillotin Gwenael | Writing of figures called "standard" figures on a document from figures "8" appearing on the latter |
| CN86102937A (en) * | 1986-04-28 | 1987-01-24 | 王迎旭 | A kind of formatting identifying method for postcode |
| CN1438607A (en) * | 2002-08-14 | 2003-08-27 | 卢文涛 | Digital figure-drawing method and use thereof |
| CN101025785A (en) * | 2007-03-28 | 2007-08-29 | 杨德明 | Two-dimensional histogram digital image identification code |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110232364A (en) * | 2019-06-18 | 2019-09-13 | 华中师范大学 | A kind of answering card page number recognition methods and device |
| CN113610206A (en) * | 2021-08-19 | 2021-11-05 | 北京印刷学院 | Two-dimensional code and encryption and decryption method thereof |
| CN113610206B (en) * | 2021-08-19 | 2023-10-13 | 北京印刷学院 | Two-dimensional code and encryption and decryption method thereof |
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