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Method for identifying character-stained RMB based on texture features

A technology of texture features and RMB, applied in the direction of processing coins or valuable banknotes, character and pattern recognition, authenticity inspection of banknotes, etc.

Active Publication Date: 2014-12-10
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the fact that there are currently no sorting machines and banknote checking machines that can effectively identify handwritten defaced coins, in order to maintain the reputation of the RMB and maintain the country's financial stability, it is necessary to propose a recognition method for such defaced RMB that is applied to banknote counting machines and sorting machines

Method used

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  • Method for identifying character-stained RMB based on texture features
  • Method for identifying character-stained RMB based on texture features
  • Method for identifying character-stained RMB based on texture features

Examples

Experimental program
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Effect test

Embodiment 1

[0096] step 1:

[0097] (1) Take 1 piece of 10 yuan defaced coin and send it to the multi-spectrum spot money detector;

[0098] (2) The banknote counting and checking machine obtains two images of the front and back of banknotes through the image high-speed scanning device. The size of the two images is 300×600; Simultaneously process two images, and combine the front and back images into one image. The size of the synthesized image is 600×600, namely:

[0099]

[0100] A and B respectively show the front and back of banknotes, M 1 ,N 1 Represent the number of rows and the number of columns of the front and back image matrices respectively, and M and N represent the number of rows and the number of columns of the merged image matrix respectively;

[0101] Perform LBP encoding on the image obtained in (2), the LBP operator used is a 3×3 matrix element, and the calculation method of LBP encoding is as follows:

[0102] LBP ( ...

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Abstract

The invention relates to a method for identifying character-stained RMB based on texture features. The method is characterized by comprising the following steps: performing LBP (LBP) encoding on an RMB image by adopting a local binary pattern, and filtering most RMB image backgrounds; performing sliding growth by adopting a rectangular window to determine the size of a character area; if the character area is over large, judging that the RMB is character-stained RMB.

Description

technical field [0001] The invention relates to paper currency identification technology, in particular to a method for identifying RMB with handwriting stains based on texture features. Background technique [0002] In recent years, a large number of defaced coins have circulated in China; these handwritings include not only handwritten characters, but also various advertisements, and even reactionary propaganda by reactionary personnel. On the market, it has gradually developed to 20 yuan, and there is a trend of continuous increase. Some defaced coins are more harmful to society. For example, reactionary propaganda coins not only have anti-political purposes and undermine social stability, but also destroy the social reputation and financial order of RMB. Although the country and the bank have formulated a series of policies, such as bank counter staff to recycle the received reactionary publicity coins, the masses can refuse to accept them in the consumption process, bu...

Claims

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Application Information

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IPC IPC(8): G07D7/20G07D7/187
Inventor 付祥旭尤新革张朋朱建南孙其新
Owner HUAZHONG UNIV OF SCI & TECH
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