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Method for increasing number spray code label character identification rate

A character recognition and coding technology, applied in the field of character recognition, to achieve the effect of low rejection rate, avoid false alarm rate, and improve recognition accuracy

Active Publication Date: 2006-11-08
SHANGHAI BANKNOTE PRINTING +1
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AI Technical Summary

Problems solved by technology

In the case of not knowing the content of the characters, the general accuracy of more than 90% is quite good

Method used

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  • Method for increasing number spray code label character identification rate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0013] As shown in Figure 1, take 18-digit number printing as an example:

[0014] 9 6 0 7 6 0 1 3 1 7 9 0 7 2 4 5 5 3

[0015] Calculation of check code:

[0016] The first digit: Add and sum the values ​​of each of the first 12 digits (excluding the four digits of the product type), and then calculate the remainder of 10, and the remainder is 5 as the value of the first check code;

[0017] The second digit: Add and subtract the previous 12-bit interval, obtain the absolute value, and find the remainder of 5, multiply the remainder by 2, and then find the result according to the principle of adding 0 to the front and adding 1 to the negative. This picture is the reverse side, so 3 is used as the value of the second check code.

[0018] After the verification code is calculated, the 18-digit code printing of the body code and the verification code is completed at the same time; when the number with the verification code is identified and the result is obtained, the verifica...

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Abstract

This invention discloses a method for increasing identification rate of digital code-spray label characters including: computing a body code to get related checkout code, then spraying the body code and the checkout code at the same time, comparing the computed checkout code and the identified checkout code, if they are the same, then it shows that the number identification is correct, the system makes sure of it and receives the result, if not, then it shows the identification is wrong, which utilizes checkout codes for conjugate verification to check out the error result so as to increase the accuracy of identification and avoid the misinformation rate.

Description

technical field [0001] The invention relates to a character recognition technology, in particular to a method for improving the character recognition rate of a digital inkjet label. Background technique [0002] The high-speed inkjet label technology and the high-speed inkjet real-time number recognition technology used online are gradually being introduced into all walks of life. The former can realize marking and coding, and the latter can realize the verification and data collection of the former, which plays a role as a bridge for data conversion. , so its practicability and correctness of results will directly affect the accuracy of the data input into the computer database and the reliability of the operation of the entire system, especially for the special industry of money printing, it must achieve high recognition accuracy and high accuracy sex. Most of the existing character recognition methods are based on template matching, and are mainly aimed at standard print...

Claims

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Application Information

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IPC IPC(8): G06F7/02G07D7/0047
Inventor 罗鸿翔王洪波朱建平袁锦海刘凤龙申磊朱雪菁
Owner SHANGHAI BANKNOTE PRINTING
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