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Banknote identification method and device

A banknote identification and banknote technology, which is applied in the field of banknote identification methods and devices, can solve the problems of low accuracy of banknote authenticity and achieve the effect of improving identification accuracy

Active Publication Date: 2020-08-18
SHENZHEN YIHUA COMP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a banknote identification method and device to solve the defect of low accuracy in identifying banknotes by using the black-and-white image grayscale distribution characteristic value obtained by the existing calculation method

Method used

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  • Banknote identification method and device

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] figure 1 It is a flow chart of a banknote counting identification method provided by Embodiment 1 of the present invention. The method of this embodiment can be executed by a banknote identification device, which can be realized by hardware and / or software, and generally can be integrated into the verification Banknote machines and ATM machines are used in or need to identify the authenticity of banknotes. The method of this embodiment specifically includes:

[0050] Step 110, acquiring a first grayscale image of a preset characteristic region of the banknote to be tested.

[0051]In this embodiment, the banknote to be tested can be any banknote, and the preset characteristic area can be any area on the front and back of the banknote to be tested, typically the hall area on the reverse side of the RMB.

[0052] Those skilled in the art can understand that the grayscale image of banknotes can be obtained through infrared transmission or ultraviolet reflection. Since th...

Embodiment 2

[0066] figure 2 It is a flow chart of a banknote identification method provided by Embodiment 2 of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiments. In this embodiment, the gray-scale distribution characteristic value of the first gray-scale image is determined according to the mean value of the gray-scale values ​​of each block image in the first gray-scale image as follows: Divide the first grayscale image according to rows and columns to obtain block images; calculate the grayscale distribution eigenvalues ​​of each row and the grayscale distribution eigenvalues ​​of each column according to the average value of the grayscale values ​​of each block image; The grayscale distribution characteristic value and the grayscale distribution characteristic value of each column calculate the grayscale distribution characteristic value of the first grayscale image.

[0067] Further, the grayscale distribution feature value of each r...

Embodiment 3

[0096] image 3 It is a structural diagram of a banknote identification device provided in Embodiment 3 of the present invention. like image 3 As shown, the device includes: a grayscale image acquisition module 101, a grayscale distribution feature value determination module 102, and a value judgment module 103, wherein:

[0097] A grayscale image acquisition module 101, configured to acquire a first grayscale image of a preset characteristic region of the banknote to be tested;

[0098] A grayscale distribution characteristic value determination module 102, configured to determine the grayscale distribution characteristic value of the first grayscale image according to the grayscale mean value of each block image in the first grayscale image;

[0099] The value judging module 103 is configured to determine that the banknote to be tested is a genuine banknote if the grayscale distribution feature value of the first grayscale image is within a preset threshold range.

[010...

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Abstract

The invention discloses a banknote identification method and device. The method comprises that a first grayscale image of a preset characteristic area of a banknote to be detected is obtained; a grayscale distribution characteristic value of the first grayscale image is determined according to a grayscale mean value of block images in the first grayscale image; and if the grayscale distribution characteristic value of the first grayscale image is within a preset threshold scope, the banknote to be detected is determined to be true. The defect that banknote identification via a grayscale distribution characteristic value, calculated via a present method, of the grayscale image is low in accuracy is overcome, and the banknote can be identified more accurately.

Description

technical field [0001] The embodiment of the present invention relates to banknote detection technology, in particular to a banknote identification method and device. Background technique [0002] With the development of the economy, the circulation of banknotes is increasing, and intelligent unmanned toll collection systems based on banknote recognition technology have appeared in many industries. For example, banknote recognition technology can be applied not only to automatic vending and ticket sales, but also to systems such as bank ATMs or automatic payment machines in business halls. At the same time, the invention of the banknote counter has also provided convenience for various industries. The application of the banknote identification device saves a lot of human resources and greatly improves the work efficiency. [0003] Since the black-and-white images obtained by real and fake banknotes are different when using infrared light and ultraviolet light to irradiate ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G07D7/20
CPCG07D7/2016
Inventor 李杰
Owner SHENZHEN YIHUA COMP