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A method for authenticating counterfeit RMB based on image features of serial numbers

A technology of image features and RMB, which is applied in the field of RMB authentication, can solve the problems of affecting the results and failing to identify counterfeit

Active Publication Date: 2015-09-16
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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  • A method for authenticating counterfeit RMB based on image features of serial numbers
  • A method for authenticating counterfeit RMB based on image features of serial numbers
  • A method for authenticating counterfeit RMB based on image features of serial numbers

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Embodiment Construction

[0043] The method for authenticating RMB forgery based on the image characteristics of the serial number of the present invention includes the following steps:

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

[0045] CCD color industrial camera is used for image collection; as far as possible, the image of the RMB prefix area can be collected as clearly as possible. The collected color image is RGB color space.

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

[0047] Mainly select the first 4 digits of the prefix number, perform color histogram calculation on it, and then perform the color difference calculation, and finally extract the prefix number color. This step is implemented by the following sub-steps:

[0048] (2.1) For the first four-digit number area of ​​the prefix number, count the appearance frequencies of all colors, and select the color with the highest appearance frequency as the identification object....

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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 renminbi authentication, in particular to a method for authenticating renminbi image features. Background technique [0002] With the development of my country's national economy, various economic activities have become more frequent. The circulation of paper currency in the market has continued to increase, and the circulation cycle has become shorter and shorter. As the main currency in circulation, paper currency plays an important role in people's lives. However, counterfeit coins and real coins go hand in hand day and night, appearing in all aspects of the circulation field. The proliferation of counterfeit money will not only threaten the people’s property security, but will also seriously interfere with all aspects of currency circulation, cause chaos in the country’s financial order, and even spread to the political field, leading to economic and social crises. Therefore, effective identification of the authent...

Claims

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Application Information

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