Design method of multispectral paper currency detector

A currency detector and multi-spectral technology, applied in the field of science, to achieve the effect of improving the counterfeiting ability, high efficiency, and good counterfeiting effect

Active Publication Date: 2011-08-31
尤新革
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, as the level of counterfeit banknote manufacturing increases, its reliability is increasingly challenged

Method used

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  • Design method of multispectral paper currency detector
  • Design method of multispectral paper currency detector
  • Design method of multispectral paper currency detector

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Embodiment Construction

[0023] The use of multi-spectral image analysis technology to improve the identification ability of banknotes is a development trend of banknote detectors, banknote detectors, ATM automatic deposit and withdrawal machines (hereinafter collectively referred to as banknote detectors), etc., which need to identify the authenticity of banknotes. Banknotes of various countries, including RMB, generally use special ink printing technology, which presents different patterns under different spectra. Therefore, analyzing the multispectral images of banknotes based on image analysis technology can achieve high reliability identification of authenticity.

[0024] The use of image analysis technology can not only realize the identification of the authenticity of banknotes, but also realize the identification of banknote serial numbers at the same time, and then support the banking system to realize the scientific management of banknote circulation.

[0025] Adopting the technology of the p...

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Abstract

The invention provides a design method of a multispectral paper currency detector, sequentially comprising the following steps: firstly, judging the orientation of a paper currency through double photoelectric cell signals and magnetic head signals when the paper currency enters the currency detector and then obtaining a paper currency image by using a CIS (contact image sensor); secondly, carrying out luminance compensation, paper currency edge detection and pretreatment of geometric correction on a collected CIS original image to obtain a standardized paper currency image; thirdly, extracting paper currency image features, distinguishing the truth of the paper currency according to the features and identifying the crown of the paper currency on the basis of an image analysis method; andfourthly, sending the distinguishing result or the crown identifying result to other devices or components through an RS-232, an Ethernet or a universal I/O (Input/Output) signal. Through the method,the truth distinguishing with higher reliability can be realized and the identification of the crowns of the paper currencies can be realized at the same time so that banking systems are supported torealize the scientific management of the currency circulation.

Description

technical field [0001] The present invention is applied to the financial equipment industry, such as banknote detectors, banknote checkers, ATM deposit and withdrawal machines, banknote sorting machines, etc., and relates to image processing, pattern recognition, digital signal processing and other scientific and technical fields. Background technique [0002] Where there are banknotes, there are counterfeit banknotes. Anti-counterfeiting of banknotes is of great significance to national financial security and social stability. In China, the utilization rate of credit cards is low, the circulation of banknotes is large, various types of counterfeit banknotes emerge in an endless stream, and the production level is getting higher and higher. There is an urgent need to develop highly reliable banknote identification equipment. [0003] Traditional banknote counterfeiting machines can detect some anti-counterfeiting features of banknotes, such as magnetic materials and fluoresc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07D7/20G07D7/1205
Inventor 徐端全尤新革蒋天瑜张朋彭勤牧郑飞
Owner 尤新革
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