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Banknote authenticity identification method and device

A banknote and counterfeit identification technology, which is applied in the field of banknote identification, can solve the problems of affecting the accuracy of banknote identification, reducing the speed of banknote identification, and taking a long time, so as to improve the identification speed, reduce the detection time, and avoid interference factors Effect

Active Publication Date: 2018-07-24
SHENZHEN YIHUA COMP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, most of the existing methods for recognizing and detecting people’s head images need to determine the facial feature points of the person in the image, then match the recognized features with known feature templates, and finally realize the recognition and detection based on the matching results. The method takes a long time to determine the facial feature points in the image and to match the feature points, thereby reducing the overall counterfeiting speed of banknotes. At the same time, this method will also introduce more interference factors, thereby affecting counterfeiting of banknotes. the accuracy of

Method used

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  • Banknote authenticity identification method and device
  • Banknote authenticity identification method and device

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Experimental program
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Embodiment 1

[0020] Figure 1a It is a schematic flow chart of a banknote authentication method provided in Embodiment 1 of the present invention. This method is applicable to the situation of banknote authenticity identification. The method can be executed by a banknote authentication device, wherein the device can be controlled by software and / or Or hardware implementation, and generally integrated on the terminal equipment with banknote verification function.

[0021] like Figure 1a As shown, a banknote authenticating method provided in Embodiment 1 of the present invention includes the following operations:

[0022] S101. Acquire a multi-spectral image of the banknote to be tested, and locate and intercept a fixed watermark area to be tested from the multi-spectral image.

[0023] The multi-spectral image in this embodiment can be specifically understood as an image formed by banknotes under illumination of different wavelengths other than visible light, such as an ultraviolet image o...

Embodiment 2

[0036] figure 2It is a schematic flowchart of a banknote authenticating method provided by Embodiment 2 of the present invention. The embodiments of the present invention are optimized on the basis of the above-mentioned embodiments. In this embodiment, further "detect the fixed watermark region to be tested according to the grayscale histogram of the fixed watermark region to be detected and the set detection formula." Whether there is an anti-counterfeit image of the head in "is embodied as: grayscale processing the fixed watermark area to be tested, and obtain the grayscale histogram of the fixed watermark area to be tested; determine the cumulative pixel points in the grayscale histogram. Compared with the first pixel mean value conforming to the first ratio range and the second pixel mean value of the accumulated pixel point ratio conforming to the second ratio range; based on the first pixel mean value, the second pixel mean value and the set detection formula, determin...

Embodiment 3

[0071] image 3 It is a structural block diagram of a device for authenticating banknotes provided by Embodiment 3 of the present invention. In the case of authenticity identification of banknotes by the device, the device can be implemented by software and / or hardware, and is generally integrated into a terminal device with a banknote verification function. like image 3 As shown, the device includes: an area determination module 31 , an image detection module 32 and a banknote identification module 33 .

[0072] Wherein, the area determination module 31 is used to obtain the multi-spectral image of the banknote to be tested, locate and intercept the fixed watermark area to be tested from the multi-spectral image;

[0073] An image detection module 32, configured to detect whether there is a head anti-counterfeiting image in the fixed watermark region to be tested according to the gray histogram of the fixed watermark region to be detected and a set detection formula;

[0...

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Abstract

The embodiments of the invention disclose a banknote authenticity identification method and device. The method includes the following steps that: the multi-spectral image of a banknote to be tested isacquired, a fixed watermark region to be tested is located and intercepted from the multi-spectral image; whether a head anti-counterfeiting image exists in the fixed watermark region to be tested isdetected according to the gray histogram of the fixed watermark region to be tested and a set detection formula; and the authenticity of the banknote to be tested is determined according to the detection result of the fixed watermark region to be tested. With the method adopted, the anti-counterfeiting image in the fixed watermark region can be detected and identified with the feature recognitionand feature matching of the image not required, and therefore, the detection time of the anti-counterfeit image in the fixed watermark region can be effectively reduced, the introduction of interference factors in a detection process can be avoided, the authenticity of the banknote can be determined according to an anti-counterfeit mark, the authenticity identification speed of the banknote can be effectively improved, and the accuracy of the authenticity identification of the banknote can be improved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of banknote processing, in particular to a method and device for authenticating banknotes. Background technique [0002] Paper money is the product of the development of commodity exchange to a certain stage. However, the reproducibility of paper money has caused the spread and flood of counterfeit money on the market, seriously disrupting the social and economic order. Therefore, in the circulation process of paper money, the authenticity of paper money identification is particularly important. At present, detecting the fixed watermark area on banknotes has become a relatively common banknote authentication method. For banknotes of different currencies, the anti-counterfeiting marks in the fixed watermark area are mostly head images. When authenticating banknotes based on the fixed watermark area, it is necessary to identify and detect the head images in the fixed watermark area. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07D7/005G07D7/202
CPCG07D7/2041
Inventor 李杰
Owner SHENZHEN YIHUA COMP