CN107016317A - A kind of bar code decoding method and device - Google Patents
A kind of bar code decoding method and device Download PDFInfo
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- CN107016317A CN107016317A CN201710119932.1A CN201710119932A CN107016317A CN 107016317 A CN107016317 A CN 107016317A CN 201710119932 A CN201710119932 A CN 201710119932A CN 107016317 A CN107016317 A CN 107016317A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
- G06K7/1404—Methods for optical code recognition
- G06K7/146—Methods for optical code recognition the method including quality enhancement steps
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Abstract
The embodiment of the invention discloses a kind of bar code decoding method and device, methods described includes：At least three scan lines are determined in bar code to be decoded, decoded for corresponding each character in every scan line, the number of times that every scan line occurs for the decoded result of the character is determined, the most decoded result of number of times is will appear from as the target decoder result of the character；According to the target decoder result of each character, the decoded result of the bar code is determined.Due in embodiments of the present invention, for corresponding each character in scan line, determine the number of times that every scan line occurs for the decoded result of the character, the most decoded result of number of times be will appear from as the target decoder result of the character, weaken bar code because fracture, cut, printing quality it is poor, dirty, it is damaged situations such as caused by decoding error and the influence that can not decode, improve the accuracy and success rate of bar code decoding.
Description
Technical field
The present invention relates to Bar Code field, more particularly to a kind of bar code decoding method and device.
Background technology
Bar code is multiple and sky for not waiting width, is arranged according to certain coding rule, to express a group information
Graphical identifier.Common bar code be the bar that is differed greatly by reflectivity with idle discharge into pattern of parallel lines.Bar code can be marked
Go out producing country, manufacturing firm, trade name, date of manufacture, book classification number, mail start-stop place, classification, date of article etc.
Many information, thus be widely used in many fields such as commodity circulation, taking care of books, postal management, banking system.
Existing bar code decoding method mainly includes：Average distance method：The bar code is drawn after the original position for orienting bar code
Actual overall width, according to the total length of bar code template and the actual overall width, obtain the pixel count of unit template, and then survey
Each and the empty developed width in bar code are measured, the developed width of determination is carried out matching determination with the template of normal width
Go out corresponding code value；Similar back gauge method：By calculate adjacent strip and empty width and, with the adjacent strip of standard character template and
Empty width sum is matched to decode；Template matching algorithm based on bar width：Pass through record strip or aerial contained
The quantity of pixel, determines bar and empty developed width, and the developed width of determination with the template of normal width match really
Make corresponding code value.
But above-mentioned each method to bar code when decoding, it is to rely on bar and empty width in bar code and is decoded,
But in actual applications bar code can there are problems that fracture, cut, printing quality it is poor, or the breakage caused by lighting issues,
Bar and empty developed width will change, and cause decoding inaccurate, or even can not decode, and decoding rate is low.And existing skill
Image processing method can only solve the problem of image obtains not good in art, for fracture, cut, printing quality be poor, dirty, breakage
Situations such as bar code can not accomplish repair error correction, influence bar code decoding accuracy and decoding rate.
The content of the invention
The present invention provides a kind of bar code decoding method and device, to solve in the prior art to fracture, cut, printing quality
The bar code decoding for situations such as amount is poor, dirty, damaged is inaccurate, the problem of decoding rate is low.
The embodiment of the invention discloses a kind of bar code decoding method, methods described includes：
At least three scan lines are determined in bar code to be decoded；
Decoded for corresponding each character in every scan line, determine that every scan line is directed to the decoding of the character
As a result the number of times occurred, will appear from the most decoded result of number of times as the target decoder result of the character；
According to the target decoder result of each character, the decoded result of the bar code is determined.
Further, it is described if being directed to the decoded result non-targeted decoded result of the first character in the first scan line
Carrying out decoding for corresponding each character in every scan line includes：
The decoded result for recognizing first character is the second scan line of target decoder result, according to the described second scanning
The original position of the next character adjacent with first character on line, rises to next character in first scan line
Beginning, position was updated；
According to the original position of next character after renewal in first scan line, in first scan line
Next character decoded.
Further, it is described determine at least three scan lines in bar code to be decoded after, in every scan line
Before corresponding each character is decoded, methods described also includes：
For every scan line, according to the starting character and the template of end mark pre-saved, determine to originate in the scan line
The position of symbol and end mark；
According to the position of starting character and end mark in the scan line, the position of each character in the scan line is determined.
Further, it is described to determine that at least three scan lines include in bar code to be decoded：
For bar code to be decoded, bar code is divided into by least threeth area using first cut-off rule vertical with the bar code
Domain, determines at least one scan line in each area.
Further, it is described to be directed to bar code to be decoded, it is determined that at least three scan lines include：
For bar code to be decoded, using at least three second cut-off rules vertical with the bar code by bar code be divided into
Few four regions, it is corresponding every scan line to determine every second cut-off rule.
Further, the character includes：
Starting character, end mark and data symbols.
The embodiment of the invention discloses a kind of bar code decoding device, described device includes：
First determining module, for determining at least three scan lines in bar code to be decoded；
Decoder module, for being decoded for corresponding each character in every scan line, determines every scan line pin
The number of times occurred to the decoded result of the character, will appear from the most decoded result of number of times as the target decoder knot of the character
Really；
Second determining module, for the target decoder result according to each character, determines the decoded result of the bar code.
Further, the decoder module, if the decoding knot specifically for being directed to the first character in the first scan line
Fruit non-targeted decoded result, the decoded result for recognizing first character is the second scan line of target decoder result, according to institute
The original position of next character adjacent with first character in the second scan line is stated, under described in first scan line
The original position of one character is updated；According to the original position of next character after renewal in first scan line,
Next character in first scan line is decoded.
Further, described device also includes：
3rd determining module, for for every scan line, according to the starting character and the template of end mark pre-saved, really
The position of starting character and end mark in the fixed scan line；According to the position of starting character and end mark in the scan line, it is determined that this is swept
Retouch the position of each character on line.
Further, first determining module, specifically for for bar code to be decoded, using vertical with the bar code
The first cut-off rule bar code is divided at least three regions, at least one scan line is determined in each area.
Further, first determining module, specifically for for bar code to be decoded, using vertical with the bar code
At least three the second cut-off rules bar code is divided at least four regions, determine that every second cut-off rule is swept for corresponding every
Retouch line.
The invention discloses a kind of bar code decoding method and device, methods described includes：Determined in bar code to be decoded
At least three scan lines, are decoded for corresponding each character in every scan line, determine that every scan line is directed to the word
The number of times that the decoded result of symbol occurs, will appear from the most decoded result of number of times as the target decoder result of the character；According to
The target decoder result of each character, determines the decoded result of the bar code.Due in embodiments of the present invention, determining that every is swept
The number of times that line occurs for the decoded result of the character is retouched, the most decoded result of number of times is will appear from as the target solution of the character
Code result, weaken bar code because fracture, cut, printing quality it is poor, dirty, it is damaged situations such as caused by decoding error and can not decode
Influence, improve the accuracy and success rate of bar code decoding.
Brief description of the drawings
Fig. 1 is a kind of bar code decoding process schematic that the embodiment of the present invention 1 is provided；
Fig. 2 is a kind of bar code decoding process schematic that the embodiment of the present invention 2 is provided；
Fig. 3 is a kind of bar code decoding apparatus structure schematic diagram that the embodiment of the present invention 5 is provided.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Embodiment 1：
Fig. 1 is a kind of bar code decoding process schematic provided in an embodiment of the present invention, and the process includes：
S101：At least three scan lines are determined in bar code to be decoded.
A kind of bar code decoding method provided in an embodiment of the present invention, applied to electronic equipment, the electronic equipment can be hand
Hold the bar code readers such as formula barcode reader, fixed barcode reader or mobile phone with bar code decoding function,
The terminal devices such as tablet personal computer.
Specifically, when being decoded to bar code to be decoded, at least three scan lines are determined in bar code to be decoded,
The distance between two adjacent scan lines can be the same or different.Preferably, in order to avoid because between scan line away from
Exist from excessively near, in bar code fracture, cut, printing quality it is poor, dirty, it is damaged situations such as the portion of bar code information mistake that causes
Point, while the character information of the bar code gathered to multi-strip scanning line is interfered, the accuracy of bar code decoding is influenceed, between can waiting
Every selection scan line, no less than one pixel of the distance between adjacent scan line.And can also be according to bar to be decoded
The degree of code determines the quantity of scan line, if the bar code degree to be decoded is relatively low, can use less
Scan line quantitative commitments decoding efficiency, if the degree of the bar code to be decoded is higher, can use more
Scan line quantitative commitments decoding accuracy.
S102：Decoded for corresponding each character in every scan line, determine that every scan line is directed to the character
Decoded result occur number of times, will appear from the most decoded result of number of times as the target decoder result of the character.
In embodiments of the present invention, each character is recognized in every scan line, each character is decoded, in identification
It is the sequencing and correspondence width occurred according to the corresponding each character of bar code to be decoded during each character in scan line,
Determine the corresponding position of each character successively in every scan line, therefore the quantity of the character included in every scan line is phase
With, and each character corresponding character in every scan line is also to know in advance in bar code to be decoded.
When determining the information of the corresponding each character of bar code, decoded for corresponding each character in scan line, determine every
The number of times that scan line occurs for the decoded result of the character, will appear from the most decoded result of number of times as the target of the character
Decoded result.
In embodiments of the present invention, it is prior art to the process that each character is decoded in scan line, no longer carries out
Repeat.
For example：The quantity of the scan line determined in bar code to be decoded be 5, respectively scan line 1, scan line 2, sweep
Retouch line 3, scan line 4, scan line 5, the corresponding character A of scan line 1, scan line 2, scan line 3, scan line 4, scan line 5 decoding
As a result it is respectively 001,001,001,002,001,001, it is determined that it is 4 times the number of times that decoded result is 001 occur for character A,
It is 1 time the number of times that decoded result is 002 occur, is more than 1 time for 4 times, by the decoded result 001 that decoded result occurrence number is 4 times
It is used as character A target decoder result.
S103：According to the target decoder result of each character, the decoded result of the bar code is determined.
Specifically, according to the target decoder result of each character in the bar code, determining the decoded result of the bar code.Example
Such as：The character that the bar code is included is character A, character B, character C, character D, character E, wherein character A, character B, character C, word
It is respectively 001,003,005,006,004 to accord with D, the corresponding target decoder results of character E, determines the corresponding decoded result of the bar code
For 001003005006004.
, will due in embodiments of the present invention, determining the number of times that every scan line occurs for the decoded result of the character
The most decoded result of occurrence number weakens bar code because of fracture, cut, printing quality as the target decoder result of the character
Poor, dirty, damaged situations such as, causes decoding error and the influence that can not be decoded, and improves the accuracy and successfully of bar code decoding
Rate.
Embodiment 2：
In order to improve accuracy and success rate to bar code decoding, on the basis of above-described embodiment, in present invention implementation
It is described for every scanning if being directed to the decoded result non-targeted decoded result of the first character in the first scan line in example
Corresponding each character, which carries out decoding, on line includes：
The decoded result for recognizing first character is the second scan line of target decoder result, according to the described second scanning
The original position of the next character adjacent with first character on line, rises to next character in first scan line
Beginning, position was updated；
According to the original position of next character after renewal in first scan line, in first scan line
Next character decoded.
When bar code part exist fracture, cut, printing quality it is poor, dirty, it is damaged when, can cause by the portion
Divide the scan line of collection bar code character information inaccurate to the corresponding character locating in the part, and influence the scan line to the portion
The positioning of character position after point corresponding character, influences the normal decoding to the character after the character, to bar code solution
The accuracy of code produces influence.
In embodiments of the present invention, in order to improve the accuracy to bar code decoding, if for the in the first scan line
The decoded result non-targeted decoded result of one character, the next word adjacent with first character on to first scan line
Before symbol is decoded, the decoded result for recognizing first character is the second scan line of target decoder result, and according to institute
The position of next character adjacent with first character in the second scan line is stated, under described in first scan line
The original position of one character is updated, according to the original position of next character after renewal in first scan line,
Next character in first scan line is decoded.Specifically, can be according to described next in the second scan line
The distance of the original position of character and the scan line original position, determines the start bit of next character in the first scan line
Put.
For example：Decoded result in first scan line for the first character is 001, and target decoder result is 003, first
Decoded result in scan line for the first character is the solution in non-targeted decoded result, the second scan line to first character
Code result is target decoder result, then second is swept with this according to the original position of the next character determined in the second scan line
The distance of line original position is retouched, the original position to next character in the first scan line is updated.
Fig. 2 is a kind of bar code decoding process schematic provided in an embodiment of the present invention, and the process includes：
S201：At least three scan lines are determined in bar code to be decoded.
S202：For current character to be decoded, decoding of the every scan line for the current character to be decoded is determined
As a result the number of times occurred, will appear from the most decoded result of number of times as the target decoder result of the current character to be decoded.
S203：The next to be decoded character adjacent with the current character to be decoded is judged whether, if it is, carrying out
S204, if not, carrying out S206.
S204：For every scan line, judge that the decoded result that the current character to be decoded is directed in the scan line is
No is target decoder result, if it is, next character to be decoded is subjected to S202 as current character to be decoded, if
It is no, carry out S205.
S205：It is to deserve in other scan lines of target decoder result according to the decoded result of the current character to be decoded
The original position of next character of preceding character to be decoded, the original position to next character in the scan line is updated,
Using next character to be decoded as current character to be decoded, S202 is carried out.
S206：According to the target decoder result of each character to be decoded, the decoded result of the bar code is determined.
Embodiment 3：
In order to accurately be decoded to corresponding each character in scan line, on the basis of the various embodiments described above,
In the embodiment of the present invention, it is described determine at least three scan lines in bar code to be decoded after, for right in every scan line
Before each character answered is decoded, methods described also includes：
For every scan line, according to the starting character and the template of end mark pre-saved, determine to originate in the scan line
The position of symbol and end mark；
According to the position of starting character and end mark in the scan line, the position of each character in the scan line is determined.
In embodiments of the present invention, starting character corresponding with barcode types to be decoded and knot have been pre-saved in electronic equipment
Record has the corresponding starting character of bar code and end mark of the type in the template of beam symbol, the template of the starting character and end mark
The information of bar sky width, according to the information of the empty width of the bar of the starting character and end mark, it may be determined that with institute in scan line
The position of the information match of the width of the bar sky of starting character and end mark is stated, so that it is determined that going out starting character and knot in the scan line
The position of beam symbol, and according to starting character and the position of end mark, determine every before end mark after starting character in the scan line
The position of individual character.In embodiments of the present invention according to starting character and the template of end mark, starting character and knot in scan line are determined
The position of beam symbol is prior art, is no longer repeated.
In addition, if not only preserving the mould of the corresponding starting character of barcode types to be decoded and end mark in electronic equipment
Plate, also preserves the corresponding starting character of other kinds of bar code and the template of end mark, it is determined that starting character and knot in scan line
When beam accords with position, for the corresponding starting character of each type of bar code and the progress in the scan line successively of the template of end mark
Match somebody with somebody, if all the match is successful in the scan line for the corresponding starting character of the bar code of the type and the template of end mark, by the type
The corresponding starting character of bar code and the starting character that is determined in scan line of end mark and end mark position, as being risen in the scan line
Begin to accord with the position with end mark.
The character includes：
Starting character, end mark and data symbols.
Specifically, after determining the type of the bar code to be decoded, can according to the corresponding starting character of bar code of the type,
End mark and the corresponding standard form of data symbols, are matched to scan line coboundary point, determine starting character in scan line, end
The position of symbol and data symbols.In embodiments of the present invention, starting character in the scan line of the bar code, knot are determined according to the type of bar code
Beam is accorded with and the position of data symbols is prior art, is no longer repeated.
Embodiment 4：
In order to ensure the accuracy to the bar code decoding, on the basis of the various embodiments described above, in the embodiment of the present invention
In, it is determined that the method for at least three scan lines includes：
Mode one,
It is described to determine that at least three scan lines include in bar code to be decoded：
For bar code to be decoded, bar code is divided into by least threeth area using first cut-off rule vertical with the bar code
Domain, determines at least one scan line in each area.
Specifically, bar code is divided into at least threeth area upwardly through the first cut-off rule in the side perpendicular to the bar code
Domain, trizonal size be can be the same or different, and at least one scan line is determined in each area, determine the bar
At least three scan lines of code.
Mode two,
It is described to be directed to bar code to be decoded, it is determined that at least three scan lines include：
For bar code to be decoded, using at least three second cut-off rules vertical with the bar code by bar code be divided into
Few four regions, it is corresponding every scan line to determine every second cut-off rule.
Specifically, for bar code to be decoded, using at least three second cut-off rules vertical with the bar code by bar code
At least four regions are divided into, it is corresponding every scan line to determine every second cut-off rule, obtains the spacing of adjacent scanning lines
From at least three equal scan lines.
Embodiment 5：
Fig. 3 is a kind of bar code decoding apparatus structure schematic diagram provided in an embodiment of the present invention, and the device includes：
First determining module 31, for determining at least three scan lines in bar code to be decoded；
Decoder module 32, for being decoded for corresponding each character in every scan line, determines every scan line
The number of times occurred for the decoded result of the character, will appear from the most decoded result of number of times as the target decoder knot of the character
Really；
Second determining module 33, for the target decoder result according to each character, determines the decoded result of the bar code.
The decoder module 32, if the decoded result non-targeted specifically for being directed to the first character in the first scan line
Decoded result, the decoded result for recognizing first character is the second scan line of target decoder result, is swept according to described second
The original position of next character adjacent with first character on line is retouched, to next character in first scan line
Original position is updated；According to the original position of next character after being updated in first scan line, to described the
Next character in scan line is decoded.
Described device also includes：
3rd determining module 34, for for every scan line, according to the starting character and the template of end mark pre-saved,
Determine the position of starting character and end mark in the scan line；According to the position of starting character and end mark in the scan line, it is determined that should
The position of each character in scan line.
First determining module 31, specifically for for bar code to be decoded, using vertical with the bar code first
Bar code is divided at least three regions by cut-off rule, and at least one scan line is determined in each area.
First determining module 31, specifically for for bar code to be decoded, using it is vertical with the bar code at least
Three bar code is divided at least four regions by the second cut-off rule, and it is corresponding every scan line to determine every second cut-off rule.
The invention discloses a kind of bar code decoding method and device, methods described includes：Determined in bar code to be decoded
At least three scan lines；Decoded for corresponding each character in every scan line, determine that every scan line is directed to the word
The number of times that the decoded result of symbol occurs, will appear from the most decoded result of number of times as the target decoder result of the character；According to
The target decoder result of each character, determines the decoded result of the bar code.Due in embodiments of the present invention, determining that every is swept
The number of times that line occurs for the decoded result of the character is retouched, the most decoded result of number of times is will appear from as the target solution of the character
Code result, weaken bar code because fracture, cut, printing quality it is poor, dirty, it is damaged situations such as caused by decoding error and can not decode
Influence, improve the accuracy and success rate of bar code decoding.
For systems/devices embodiment, because it is substantially similar to embodiment of the method, so the comparison of description is simple
Single, the relevent part can refer to the partial explaination of embodiments of method.
It should be understood by those skilled in the art that, embodiments herein can be provided as method, system or computer program
Product.Therefore, the application can be using the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.Moreover, the application can be used in one or more computers for wherein including computer usable program code
The computer program production that usable storage medium is implemented on (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The application is the flow with reference to method, equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram are described.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which is produced, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that in meter
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, thus in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
Although having been described for the preferred embodiment of the application, those skilled in the art once know basic creation
Property concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to include excellent
Select embodiment and fall into having altered and changing for the application scope.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (11)
1. a kind of bar code decoding method, it is characterised in that methods described includes：
At least three scan lines are determined in bar code to be decoded；
Decoded for corresponding each character in every scan line, determine that every scan line is directed to the decoded result of the character
The number of times of appearance, will appear from the most decoded result of number of times as the target decoder result of the character；
According to the target decoder result of each character, the decoded result of the bar code is determined.
2. the method as described in claim 1, it is characterised in that if being directed to the decoding knot of the first character in the first scan line
Fruit non-targeted decoded result, it is described to include for corresponding each character progress decoding in every scan line：
The decoded result for recognizing first character is the second scan line of target decoder result, according in second scan line
The original position of the next character adjacent with first character, to the start bit of next character in first scan line
Put and be updated；
According to the original position of next character after renewal in first scan line, to the institute in first scan line
Next character is stated to be decoded.
3. the method as described in claim 1, it is characterised in that described that at least three scan lines are determined in bar code to be decoded
Afterwards, for before corresponding each character is decoded in every scan line, methods described also includes：
For every scan line, according to the starting character and the template of end mark pre-saved, determine in the scan line starting character and
The position of end mark；
According to the position of starting character and end mark in the scan line, the position of each character in the scan line is determined.
4. the method as described in claim 1, it is characterised in that described that at least three scan lines are determined in bar code to be decoded
Including：
For bar code to be decoded, bar code is divided into by least three regions using first cut-off rule vertical with the bar code,
At least one scan line is determined in each area.
5. the method as described in claim 1, it is characterised in that described to be directed to bar code to be decoded, it is determined that at least three scannings
Line includes：
For bar code to be decoded, bar code is divided at least four using at least three second cut-off rules vertical with the bar code
Individual region, it is corresponding every scan line to determine every second cut-off rule.
6. the method as described in claim 1, it is characterised in that the character includes：
Starting character, end mark and data symbols.
7. a kind of bar code decoding device, it is characterised in that described device includes：
First determining module, for determining at least three scan lines in bar code to be decoded；
Decoder module, for being decoded for corresponding each character in every scan line, determines every scan line for being somebody's turn to do
The number of times that the decoded result of character occurs, will appear from the most decoded result of number of times as the target decoder result of the character；
Second determining module, for the target decoder result according to each character, determines the decoded result of the bar code.
8. device as claimed in claim 7, it is characterised in that the decoder module, if specifically in the first scan line
The upper decoded result non-targeted decoded result for the first character, the decoded result for recognizing first character is target decoder knot
The second scan line of fruit is right according to the original position of next character adjacent with first character in second scan line
The original position of next character is updated in first scan line；According to the institute after renewal in first scan line
The original position of next character is stated, next character in first scan line is decoded.
9. device as claimed in claim 7, it is characterised in that described device also includes：
3rd determining module, for for every scan line, according to the starting character and the template of end mark pre-saved, it is determined that should
The position of starting character and end mark in scan line；According to the position of starting character and end mark in the scan line, the scan line is determined
The position of upper each character.
10. device as claimed in claim 7, it is characterised in that first determining module, specifically for for be decoded
Bar code, is divided at least three regions by bar code using first cut-off rule vertical with the bar code, determines in each area
At least one scan line.
11. device as claimed in claim 7, it is characterised in that first determining module, specifically for for be decoded
Bar code, is divided at least four regions by bar code using at least three second cut-off rules vertical with the bar code, determines every
Second cut-off rule is corresponding every scan line.
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| CN111797647A (en) * | 2020-07-08 | 2020-10-20 | 北京京东振世信息技术有限公司 | Bar code decoding method and device |
| CN111797642A (en) * | 2020-07-08 | 2020-10-20 | 北京京东振世信息技术有限公司 | Bar code identification method and terminal |
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