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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 slow forgery verification speed, inability to meet high requirements for banknote verification speed, and cumbersome processes.

Active Publication Date: 2018-10-09
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 cumbersome process of banknote identification using the template matching method in the prior art, the amount of calculation is large, the identification speed is slow, and the banknote identification cannot be satisfied. Technical defects in occasions with high speed requirements

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

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Experimental program
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Effect test

Embodiment 1

[0064] Figure 1a This is a flowchart of a banknote recognition method provided in the first embodiment of the present invention. The method in this embodiment can be executed by a banknote recognition device, which can be implemented by hardware and / or software, and can generally be integrated in a banknote In the device with the authentication function. The method of this embodiment specifically includes:

[0065] S110: Obtain a grayscale image of a preset feature area of ​​the banknote to be tested.

[0066] In this embodiment, the banknote to be tested may specifically be a banknote of any currency type, and the preset characteristic area specifically refers to any area in the banknote to be tested, and typically may be a shofar area in the RMB.

[0067] Generally speaking, when conducting anti-counterfeiting detection of banknotes, firstly, infrared or ultraviolet light is used to irradiate the banknotes, and then the grayscale image of the banknotes is obtained, and then the gr...

Embodiment 2

[0084] figure 2 It is a flowchart of a banknote recognition method provided in the second embodiment of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiment. In this embodiment, it is determined whether the edge image includes standard reference points according to the number of edge points in rows and the number of edge points in columns in the edge image. The optimization is: The sum of the number of edge points of each reference row and the sum of the number of edge points of each reference column; judge whether there are edge points in each reference row and the rows greater than the preset row and threshold; if the sum of edge points in each reference row is greater than the preset row and threshold Then continue to determine whether there are edge points and columns greater than the preset column and threshold in each reference column. If there are no edge points and rows greater than the preset row and threshold in each refer...

Embodiment 3

[0110] image 3 It is a flowchart of a banknote recognition method provided in the third embodiment of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiment. In this embodiment, it is determined whether the edge image includes standard reference points according to the number of edge points in rows and the number of edge points in columns in the edge image. The optimization is: The edge value of all pixels in the preset range, where the edge value is the sum of the number of edge points in the row of the pixel and the sum of the number of edge points in the column; determine whether there is an edge value in each pixel in the preset range that is greater than the preset Pixels with edge values; if there is a pixel with an edge value greater than the preset edge value in each pixel within the preset range, then the pixel is determined to be a standard reference point; if there is no pixel within the preset range with an edge value grea...

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Abstract

The embodiment of the invention discloses a banknote identification method and device. The method includes a step of acquiring a grayscale image of a preset feature area of a banknote to be tested, astep of performing edge detection on the grayscale image of the preset feature area to obtain an edge image of the preset feature area, a step of determining whether the edge image includes a standardreference point or not according to the number of edge points of rows and the number of edge points of columns in the edge image, a step of determining the position of the standard reference point ifso and determining a matching position of a template information image and the edge image according to the position of the standard reference point, and a step of carrying out information matching onthe edge image and the template information image and identifying the banknote to be tested according to an information matching result. According to the technical scheme of the embodiment of the invention, the technical defects of a cumbersome authentication process and a large calculation amount in carrying out banknote identification by using a template matching method in the prior art is solved, the process of simplifying template matching for banknote identification is achieved, the calculation amount is greatly reduced, and the identification speed of the banknote is improved.

Description

Technical field [0001] The embodiment of the present invention relates to the technical field of banknote processing, and in particular to a banknote recognition method and device. Background technique [0002] With the development of the economy, the circulation of banknotes is increasing, and intelligent unmanned charging systems based on banknote recognition technology have emerged in many industries. For example, banknote recognition technology can be applied not only to automatic vending and ticketing, but also to systems such as automatic teller machines in banks or automatic payment machines in business halls. At the same time, the invention of the money counter also provided convenience to various industries. The application of the banknote recognition device saves a lot of human resources and greatly improves work efficiency. [0003] Existing template matching technology applied to banknote counterfeiting generally uses the obtained grayscale image of the entire banknot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07D7/206
Inventor 李杰
Owner SHENZHEN YIHUA COMP