CN100421066C - Method for increasing number spray code label character identification rate - Google Patents
Method for increasing number spray code label character identification rate Download PDFInfo
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- CN100421066C CN100421066C CNB2006100268326A CN200610026832A CN100421066C CN 100421066 C CN100421066 C CN 100421066C CN B2006100268326 A CNB2006100268326 A CN B2006100268326A CN 200610026832 A CN200610026832 A CN 200610026832A CN 100421066 C CN100421066 C CN 100421066C
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Abstract
The present invention discloses a method for improving the character identifying rate of a number code spraying label, which comprises the following steps: a corresponding check code is obtained by calculating a body code, and then the cold spraying operation is carried out to the body code and the check code; the calculated check code is compared with an identified check code; if the calculated check code is identical to the identified the check code, the identified code is correct, and a system confirms and accept the result; if the calculated check code is different from the identified the check code, the identified code is incorrect. The method of the present invention utilizes the check code to carry out conjugate check, so that the misidentified result can be effectively checked out. The identifying accuracy is technically improved, and the misidentifying rate can be avoided in practical use; in addition, a checking program is used as a guarantee, the algorithm can decrease the reject rate to the minimum by the maximum efficacy.
Description
Technical field
The present invention relates to a kind of character recognition technologies, relate in particular to a kind of method that improves the character identification rate of digital code-spraying label.
Background technology
The real-time number recognition technology of the high speed code-spraying label technology of online use and high speed coding is just progressively introduced all trades and professions, the former can realize mark and coding, the latter can realize the former checking and data acquisition, it has played the function served as bridge of data-switching, therefore its practicality and as a result correctness will directly influence the data accuracy of entering computer database and the reliability of operation of total system, particularly concerning this special industry of seal paper money, it must reach high accuracy of identification and high correctness.What existing character recognition major part adopted is the method for template matches, and is primarily aimed at the printing type face of standard.Do not knowing under the situation of character content that general accuracy is just pretty good more than 90%.And native system is applied in the so special industry of seal paper money, be on the machine that runs up, to gather identification, accuracy and high correctness for identification are had higher requirement, so must find a kind of method, the accuracy that not only can the raising system detects, and can allow system know clearly whether identification is correct.
Summary of the invention
At the deficiency that prior art exists, the object of the present invention is to provide a kind of method of utilizing the check code technology to improve number spray code label character identification rate, this method has improved the accuracy of character recognition technically, avoids rate of false alarm.
The technical scheme that realizes objects of the present invention is as follows:
Before spray body sign indicating number, according to the checking algorithm that sets in advance the body sign indicating number is calculated corresponding check code earlier, and then finish the coding of body sign indicating number and check code simultaneously;
When the number that has check code after identification is obtained a result, checking routine will carry out computing and draw check code to the body sign indicating number that identifies, again check code and the check code that identifies are compared the correctness that detects this recognition result;
If both unanimities show that then this number identification is correct, system validation is also accepted this result, if inconsistent, shows that then this number identification is wrong, and this result will refuse in system, and prompting requires the manual amendment to confirm.
The general jack per line that adopts of traditional number identification uses the method that single template is mated to discern, and number is essentially standard letter.Native system is owing to be to gather identification on the machine that runs up, and the number of ejection is irregular raster font, so can not use traditional number identification method.Therefore native system has adopted jack per line to use the method for multi-template to discern, and carries out template matches according to the characteristics of raster font.
The inventive method is carried out the conjugation verification by utilizing check code, thereby mistake is known the effective verification of result comes out, not only improved the identification accuracy technically, and avoided rate of false alarm basically fully from angle of practical application, had checking routine to ensure as solid backing in addition, the algorithm of front also just can be use up maximum efficiency and reject rate be dropped to minimum.
Accompanying drawing
Bright
Fig. 1 is the process flow diagram of the embodiment of the invention.
Embodiment
How further specify the present invention below in conjunction with accompanying drawing with specific embodiment realizes:
Embodiment
As shown in Figure 1, be example with 18 item sign indicating number codings:
9?6?0?7?6?0?1?3?1?7?9?0?7?2?4?5?5?3
The calculating of check code:
First: all addition summations of the value of every of 12 of front (do not comprise product type four), ask then and 10 remainder, remainder is 5 values as the first bit check sign indicating number;
Second: 12 bit intervals of front plus-minuss, the absolute value of trying to achieve, ask and 5 remainder, this remainder multiply by 2, adds 0 reverse side according to the front then and adds 1 principle and ask the result.This figure is a reverse side, so get 3 values as the second bit check sign indicating number.
After calculating check code, finish the coding of totally 18 item sign indicating numbers of body sign indicating number and check code more simultaneously; When the number that has check code after identification is obtained a result, checking routine will carry out computing and draw check code to the body sign indicating number that identifies, again check code and the check code that identifies are compared the correctness that detects this recognition result.If both unanimities show that then this number identification is correct, system validation is also accepted this result, if inconsistent, shows that then this number identification is wrong, and this result will refuse in system, and prompting requires the manual amendment to confirm.
System's the key technical indexes: coding speed :≤13000/hour, the numerical code figure place :≤20, recognition speed :≤12000/hour accuracys rate: 〉=99.9%.
By utilizing check code to carry out the conjugation verification, thereby mistake is known the effective verification of result comes out, not only improved the identification accuracy technically, and avoided rate of false alarm basically fully from angle of practical application, had checking routine to ensure as solid backing in addition, the algorithm of front also just can be use up maximum efficiency and reject rate be dropped to minimum.
Claims (3)
1. a method that improves number spray code label character identification rate comprises the steps:
A, on carrier, before the spray body sign indicating number, according to the checking algorithm that sets in advance the body sign indicating number is calculated corresponding check code earlier, and then finish the coding of body sign indicating number and check code simultaneously;
B, after the number on the carrier draws the result of body sign indicating number and check code through identification, checking routine will carry out computing and draw check code to the body sign indicating number that identifies, will calculate again check code compare with the check code that identifies;
If the check code that C calculates is consistent with the check code that identifies, show that then this number identification is correct, system validation is also accepted this result, if it is inconsistent, show that then this number identification is wrong, this result will refuse in system, and prompting requires the manual amendment to confirm.
2. a kind of method that improves number spray code label character identification rate according to claim 1, it is characterized in that: described checking algorithm can be set as required.
3. a kind of method that improves number spray code label character identification rate according to claim 1 is characterized in that: number identification adopts jack per line to use the method for multi-template to discern, and carries out template matches according to the characteristics of raster font.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100268326A CN100421066C (en) | 2006-05-24 | 2006-05-24 | Method for increasing number spray code label character identification rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100268326A CN100421066C (en) | 2006-05-24 | 2006-05-24 | Method for increasing number spray code label character identification rate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1858696A CN1858696A (en) | 2006-11-08 |
| CN100421066C true CN100421066C (en) | 2008-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100268326A Active CN100421066C (en) | 2006-05-24 | 2006-05-24 | Method for increasing number spray code label character identification rate |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103042822B (en) * | 2013-01-11 | 2015-02-25 | 西安印钞有限公司 | Control system and method of double identification code dynamic digit of presswork |
| CN109376554B (en) * | 2018-10-16 | 2022-02-11 | 周金明 | Multi-terminal electronic document examination and signature method and system based on labels and views |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1114440A (en) * | 1994-07-01 | 1996-01-03 | 杨志强 | Method for distinguishing true from false of bills |
| CN1571980A (en) * | 2001-10-15 | 2005-01-26 | 西尔弗布鲁克研究有限公司 | Character string identification |
| US20050123199A1 (en) * | 2000-06-27 | 2005-06-09 | Isaac Mayzlin | Method for optical recognition of a multi-language set of letters with diacritics |
| CN1674035A (en) * | 2004-03-22 | 2005-09-28 | 佳能株式会社 | Image-processing device and image processing method |
| CN1684097A (en) * | 2004-04-16 | 2005-10-19 | 中国科学院自动化研究所 | Real time IC card digital character identifying and checking system and method |
-
2006
- 2006-05-24 CN CNB2006100268326A patent/CN100421066C/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1114440A (en) * | 1994-07-01 | 1996-01-03 | 杨志强 | Method for distinguishing true from false of bills |
| US20050123199A1 (en) * | 2000-06-27 | 2005-06-09 | Isaac Mayzlin | Method for optical recognition of a multi-language set of letters with diacritics |
| CN1571980A (en) * | 2001-10-15 | 2005-01-26 | 西尔弗布鲁克研究有限公司 | Character string identification |
| CN1674035A (en) * | 2004-03-22 | 2005-09-28 | 佳能株式会社 | Image-processing device and image processing method |
| CN1684097A (en) * | 2004-04-16 | 2005-10-19 | 中国科学院自动化研究所 | Real time IC card digital character identifying and checking system and method |
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| CN1858696A (en) | 2006-11-08 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI NOTE PRINTING CO., LTD. Free format text: FORMER OWNER: SHANGHAI BANK-NOTE-PRINTING FACTORY Effective date: 20090424 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090424 Address after: No. 158 Cao Yang Road, Shanghai, Putuo District: 200063 Co-patentee after: CHINA BANKNOTE PRINTING AND MINTING Corp. Patentee after: SHANGHAI BANKNOTE PRINTING Co.,Ltd. Address before: No. 158 Cao Yang Road, Shanghai, Putuo District: 200063 Patentee before: Shanghai Banknote Printing Plant |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200063 158 Cao Yang Road, Shanghai, Putuo District Patentee after: SHANGHAI BANKNOTE PRINTING Co.,Ltd. Patentee after: China Banknote Printing and Minting Group Co.,Ltd. Address before: 200063 158 Cao Yang Road, Shanghai, Putuo District Patentee before: SHANGHAI BANKNOTE PRINTING Co.,Ltd. Patentee before: CHINA BANKNOTE PRINTING AND MINTING Corp. |