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Renminbi (RMB) counterfeit identifying method based on crown-word image characters

A technology of image features and RMB, which is applied in the field of RMB counterfeiting, can solve the problems of inability to identify counterfeit and affect the results, etc.

Active Publication Date: 2013-06-05
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above method can partially extract the serial number features, it cannot perform counterfeit identification, and both the global threshold and the local threshold have certain limitations, which will affect the final result

Method used

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  • Renminbi (RMB) counterfeit identifying method based on crown-word image characters
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  • Renminbi (RMB) counterfeit identifying method based on crown-word image characters

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Embodiment Construction

[0043] The present invention is based on the Renminbi identification method of serial number image feature, comprises the following steps:

[0044] 1. Collect color images of the RMB prefix number area.

[0045] CCD color industrial cameras are used for image collection; try to ensure that the image of the RMB serial number area can be clearly collected. The collected color images are in RGB color space.

[0046] 2. Perform color extraction on the serial number area of ​​the color image collected in step 1.

[0047] Mainly select the first 4 digits of the serial number, calculate its color histogram, then calculate the color difference, and finally extract the color of the serial number. This step is realized by the following sub-steps:

[0048](2.1) For the first four digits of the prefix number, count the frequency of occurrence of all colors, and select the color with the highest frequency of occurrence as the identification object.

[0049] Since the color around the se...

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Abstract

The invention discloses a renminbi (RMB) counterfeit identifying method based on crown-word image characters. The method includes the steps of locating based on a repeated projection method, extracting based on divisional RMB crown-word characters, carrying out identifying on crown-word images so as to achieve division and extraction of crown-word numbers, and then judging whether a piece of RMB is a piece of suspicious paper money according to the color of the crown-word numbers, the width of a crown-word number area and the font sizes. The RMB counterfeit identifying method based on the crown-word image characters is capable of improving the identification rate of the current RMB paper money and makes a contribution to striking crimes in counterfeit money and protecting national currency security.

Description

technical field [0001] The invention relates to the field of counterfeit RMB identification, in particular to a counterfeit identification method utilizing image features of RMB. Background technique [0002] With the development of my country's national economy, various economic activities are becoming more and more frequent, the cash circulation of banknotes in the market is increasing, and the cycle of circulation is getting shorter and shorter. As the main currency in circulation, banknotes play an important role in people's lives. However, counterfeit money and real money go hand in hand day and night, appearing in all links of the circulation field. The proliferation of counterfeit money will not only threaten the property safety of the people, but also seriously interfere with all aspects of currency circulation, causing chaos in the country's financial order, and even spread to the political field, leading to economic and social crises. Therefore, effectively identi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07D7/20G07D7/0047G07D7/202
Inventor 周泓程添蔡宇
Owner ZHEJIANG UNIV
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