CN103400176B - A kind of numerical character coding and recognition methods thereof - Google Patents
A kind of numerical character coding and recognition methods thereof Download PDFInfo
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- CN103400176B CN103400176B CN201310363305.4A CN201310363305A CN103400176B CN 103400176 B CN103400176 B CN 103400176B CN 201310363305 A CN201310363305 A CN 201310363305A CN 103400176 B CN103400176 B CN 103400176B
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Abstract
The present invention discloses a kind of numerical character coding and recognition methods thereof, belongs to digital coding field.The figure of this numerical character coding is made up of " returning " glyph framework, the little square that the center section " returning " glyph framework is made up of black patch and white triangles shape, little foursquare outside is a concentric circles, concentrically ringed outside is large square, and large square and concentrically ringed centre are cross-shape frames.The encoding scheme that the present invention proposes is easy to learn, specification is hand-written, and coding region has location, directed and anti-tamper feature, is applicable to computer automation identification.
Description
Technical field:
The invention belongs to 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, has become the important step accelerating information process-.Mainly use the processing data information field be made up of numeral to have: statistical report form, financial statement, bank money etc., its groundwork is the data correctly reading needs, and these data are all completed by hand-written, so identify that handwritten numeral has just become a committed step of an information process-.Current Handwritten Digit Recognition method mainly for be hand-written arabic numeral, accept Protean handwritten numeral passively, identify difficulty very large.
Summary of the invention:
The present invention is directed to Problems existing in existing numerical character coding and recognition technology thereof, provide a kind of numerical character to encode and recognition methods.
The figure of a kind of numerical character coding provided by the present invention is made up of " returning " glyph framework, the little square that the center section of described " time " glyph framework is made up 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 such as region of " L " of described " time " glyph framework is numerical character coding region, and pointed by described white triangles shape 2, region is C1 region, and other three regions are respectively C2, C3, C4 region in the direction of the clock; Described C1, C2, C3, C4 region is by corresponding numeral 1,2,4,7 coding.When representative digit 1, in described C1 region, namely draw a diagonal line and be parallel to this cornerwise virgule; During numeral 2, in described C2 region, namely draw a diagonal line and be parallel to this cornerwise virgule; During numeral 4, in described C3 region, namely draw a diagonal line and be parallel to this cornerwise virgule; During numeral 7, in described C4 region, namely draw a diagonal line and be parallel to this cornerwise virgule.Numeral 3, by described C1, C2 areacombined coding, namely respectively draws a diagonal line in described C1, C2 region; Numeral 5, by described C1, C3 areacombined coding, namely respectively draws a diagonal line in described C1, C3 region; Numeral 6, by described C2, C3 areacombined coding, namely respectively draws a diagonal line in described C2, C3 region; Numeral 8, by described C1, C4 areacombined coding, namely respectively draws a diagonal line in described C1, C4 region; Numeral 9, by described C2, C4 areacombined coding, namely respectively draws a diagonal line in described C2, C4 region; Numeral 0, by described C3, C4 areacombined coding, namely respectively draws a diagonal line in described C3, C4 region.
Ten digital coded systems are different, and a numerical character by a region or two areacombined codings, can only can only be drawn diagonal line and virgule by during a regional code, can only draw a diagonal line by each region during two areacombined codings.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:
First by described numerical coding graph scanning or take pictures, form digital picture, then binary conversion treatment is carried out to described digital picture, by the shape facility of the black patch 1 in described numerical coding figure and white triangles shape 2, realize the first location of coding region, then realize coding region in conjunction with the feature of described concentric circles 3 and cross-shape frame 4 accurately to locate, realize coding region orientation according to described white triangles shape 2 thus find described region C1, then described C2 is located according to clockwise direction, C3, C4 region, to described C1, C2, C3, diagonal line in C4 tetra-coding regions and virgule carry out identification and obtain coded digital.
In actual applications, the numeral 1,2,4,7 in four regions can be pre-printed, also can not print, and only needs setting-out to mark during number completion word for numerical coding.
The present invention has following characteristics:
1, numerical character coding is easy to learn, and specification is hand-written, only needs picture straight line during coding.
2, coding region has location, directed and anti-tamper feature, is applicable to computer automation identification, can facilitates and identify coded numeral by Digital Image Processing accurately.
Accompanying drawing illustrates:
Fig. 1 is " returning " glyph framework schematic diagram in numerical character of the present invention coding.
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 be made up of 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, is large square outside concentric circles.The centre of large square and concentric circles 3 is cross-shape frames 4.In " returning " glyph framework, there are four numerals, select wherein one or two numeral, complete 1,2,3,4,5,6,7,8,9,0 these ten digital codings.Realize numerical coding region Primary Location by black patch 1 and white triangles shape 2, white triangles shape 2 realizes coding region orientation, and concentric circles 3 and cross-shape frame 4 realize accurately location and confirmation.
" return " glyph framework four dihedrals as the region of " L ", be numerical character coding region, region pointed by white triangles shape 2 is C1 district, and in the direction of the clock, other three regions are respectively C2, C3, C4.C1, C2, C3, C4 region by corresponding numeral 1,2,4,7 coding, namely when only representative digit 1 or 2 or 4 or 7 time, in C1, C2, C3, C4 district of correspondence, just draw a diagonal line and be parallel to this cornerwise virgule.Numeral 3, by C1, C2 areacombined coding, namely respectively draws a diagonal line in these two regions; Numeral 5, by C1, C3 areacombined coding, namely respectively draws a diagonal line in these two regions; Numeral 6, by C2, C3 areacombined coding, namely respectively draws a diagonal line in these two regions; Numeral 8, by C1, C4 areacombined coding, namely respectively draws a diagonal line in these two regions; Numeral 9, by C2, C4 areacombined coding, namely respectively draws a diagonal line in these two regions; Numeral 0, by C3, C4 areacombined coding, namely respectively draws a diagonal line in these two regions.Ten digital coded systems are different, and a numerical character by a region or two areacombined codings, can only can only be drawn diagonal line and virgule by during a regional code, can only draw a diagonal line by each region during two areacombined codings.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, then white triangles shape 2 is equilateral right-angle triangle, and the length of side is 2/3; Concentric circles 3 radius is 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 identifies by the following method:
First by numerical coding graph scanning or take pictures, form digital picture, then binary conversion treatment is carried out to image.By the shape facility of the black patch 1 in coded graphics and white triangles shape 2, realize the first location of coding region, feature in conjunction with concentric circles 3 and cross-shape frame 4 realizes coding region and accurately locates, white triangles shape 2 realizes coding region orientation, find region C1, then locate other regions according to clockwise direction, the diagonal line in four coding regions and virgule are identified, obtain coded digital.
The present invention has application prospect very widely, is typical apply of the present invention below:
1, the application in data statistics
Large-scale data statistics (generaI investigation, statistical report form etc.), such as, need the various information that typing is relevant to identity in demographics, wherein data are the chief component of information.These data, by manual input, need a large amount of manpower and materials, and in this kind of work, adopt electrooptic character reading technique (OCR) to become a kind of trend.And digital back-shaped coding can specification handwritten numeral, the numeral then after scanning encoding becomes digital picture, is identified by the simple process of computing machine, reach the object 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 coming into contacts with numeral, if the back-shaped coding of Applied Digital, automatically process these data with computing machine, so staff will save a lot of time, and work efficiency is higher.Because the back-shaped coding of numeral can represent various numeral exactly, and can locate accurately coding region when Digital Image Processing, directed, can also be anti-tamper, there is very high reliability, so certainly can play an important role in financial business.
Claims (2)
1. the recognition methods of a numerical character coding, it is characterized in that the figure that this numerical character is encoded is made up of " returning " glyph framework, the little square that the center section of described " time " glyph framework is made up 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); Four dihedrals such as region of " L " of described " time " glyph framework is numerical character coding region, and pointed by the right angle of described white triangles shape (2), region is C1 region, and other three regions are respectively C2, C3, C4 region in the direction of the clock; Described C1, C2, C3, C4 region is by corresponding numeral 1,2,4,7 coding; When representative digit 1, in described C1 region, namely draw a diagonal line and be parallel to this cornerwise virgule; During numeral 2, in described C2 region, namely draw a diagonal line and be parallel to this cornerwise virgule; During numeral 4, in described C3 region, namely draw a diagonal line and be parallel to this cornerwise virgule; During numeral 7, in described C4 region, namely draw a diagonal line and be parallel to this cornerwise virgule; Numeral 3, by described C1, C2 areacombined coding, namely respectively draws a diagonal line in described C1, C2 region; Numeral 5, by described C1, C3 areacombined coding, namely respectively draws a diagonal line in described C1, C3 region; Numeral 6, by described C2, C3 areacombined coding, namely respectively draws a diagonal line in described C2, C3 region; Numeral 8, by described C1, C4 areacombined coding, namely respectively draws a diagonal line in described C1, C4 region; Numeral 9, by described C2, C4 areacombined coding, namely respectively draws a diagonal line in described C2, C4 region; Numeral 0, by described C3, C4 areacombined coding, namely respectively draws a diagonal line in described C3, C4 region; The recognition methods particular content of described numerical character coding is as follows:
The graph scanning of first described numerical character being encoded or take pictures, form digital picture, then binary conversion treatment is carried out to described digital picture, by the shape facility of the black patch (1) in described numerical coding figure and white triangles shape (2), realize the first location of coding region, then realize coding region in conjunction with the feature of described concentric circles (3) and cross-shape frame (4) accurately to locate, realize coding region orientation according to described white triangles shape (2) thus find described region C1, then described C2 is located according to clockwise direction, C3, C4 region, to described C1, C2, C3, diagonal line in C4 tetra-coding regions and virgule carry out identification and obtain coded digital.
2. the recognition methods of numerical character coding according to claim 1, it is characterized in that the described little foursquare length of side is unit 1, described white triangles shape (2) is equilateral right-angle triangle, and the length of side of right-angle 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.
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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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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 |
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