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Method and device for detecting banknote anti-counterfeiting marks

A technology for anti-counterfeiting marks and banknotes is applied in the detection field of anti-counterfeiting marks of banknotes. The introduction of factors, the effect of improving accuracy

Active Publication Date: 2020-07-24
SHENZHEN YIHUA COMP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing banknote identification technology, the anti-counterfeiting detection is often performed on the entire banknote. This technology can ensure that all the anti-counterfeiting marks of the banknote are covered. However, if all the anti-counterfeiting marks of the banknote are detected every time, then It will greatly increase the calculation amount of anti-counterfeiting detection, thereby reducing the overall counterfeiting speed of banknotes, and at the same time, it will introduce more interference factors, thus affecting the accuracy of counterfeiting banknotes

Method used

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  • Method and device for detecting banknote anti-counterfeiting marks
  • Method and device for detecting banknote anti-counterfeiting marks
  • Method and device for detecting banknote anti-counterfeiting marks

Examples

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Embodiment 1

[0026] figure 1 This is a schematic flow diagram of a method for detecting an anti-counterfeiting mark of banknotes provided by the first embodiment of the present invention. The method is suitable for detecting the anti-counterfeiting mark of banknotes. The method can be executed by a detection device of the anti-counterfeiting mark of banknotes. It is implemented by software and / or hardware, and is generally integrated on a terminal device with a banknote counterfeiting function.

[0027] Such as figure 1 As shown, the method for detecting a banknote anti-counterfeiting mark provided in the first embodiment of the present invention includes the following operations:

[0028] S101. Locate and intercept the target area of ​​the anti-counterfeiting mark to be tested in the multispectral image of the banknote.

[0029] Generally, for terminal devices such as currency detectors or cash dispensers with currency verification functions, it is first necessary to obtain the multi-spectral im...

Embodiment 2

[0042] figure 2 This is a schematic flow chart of a method for detecting a banknote anti-counterfeiting mark provided in the second embodiment of the present invention; the second embodiment of the present invention is optimized based on the above-mentioned embodiment. In this embodiment, the template information graph includes the to-be-tested Each standard feature point on the anti-counterfeiting mark; correspondingly, the step of "matching the binary image to be tested with the set template information graph of the anti-counterfeiting mark to be tested" can be embodied as: Sliding the template information map on the binary map to be tested; after each sliding, according to the obtained identification information of each standard feature point in the template information map, it is determined that the binary map to be tested is The number of matching points corresponding to each standard feature point is recorded and recorded; after monitoring the end of the sliding operation...

Embodiment 3

[0069] image 3 This is a schematic flow diagram of a method for detecting a banknote anti-counterfeiting mark provided in the third embodiment of the present invention; the embodiment of the present invention is optimized based on the above-mentioned embodiment. In this embodiment, the anti-counterfeiting mark to be tested is determined according to the matching result. After the detection information, it further includes: determining the authenticity of the banknote according to the detection information and the version information of the banknote.

[0070] Specifically, this embodiment further optimizes "determining the authenticity of the banknote based on the detection information and the version information of the banknote" as: acquiring a preset mapping relationship between each anti-counterfeiting identifier and version information in the authentic banknote; According to the mapping relationship and the version information of the banknote, determine the set of anti-counter...

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Abstract

The embodiments of the invention disclose a banknote anti-counterfeiting mark detection method and device. The method includes the following steps that: a region where th target of an anti-counterfeitmark to be tested is located, is positioned and intercepted in the multi-spectral image of a banknote; the region where the target is located is binarized, the to-be-tested binary image of the regionwhere the target is located is obtained; and the to-be-tested binary image is matched with the set template information image of the anti-counterfeiting mark to be tested, and the detection information of the anti-counterfeiting tested to be tested is determined according to a matching result. With the method adopted, the detection and recognition of a part of an anti-counterfeiting mark on a banknote can be realized, and therefore, the calculation amount of the anti-counterfeiting detection of the banknote is decreased, the overall authenticity identification speed of the banknote can be improved; and just a part of the anti-counterfeit mark is detected, and therefore, the introduction of interference factors can be effectively decreased, and the accuracy of the authenticity identification of the banknote can be improved.

Description

Technical field [0001] The embodiment of the present invention relates to the technical field of banknote processing, in particular to a detection method and device for banknote anti-counterfeiting marks. Background technique [0002] According to the current market demand, cash deposit and withdrawal machines generally need to have a banknote verification function to identify the authenticity of banknotes. [0003] The existing paper currency authentication technology often performs anti-counterfeiting detection on the entire paper currency. This technology can ensure that all anti-counterfeiting marks of the paper currency are detected. However, if all anti-counterfeiting marks of the paper currency are tested every time, then It will greatly increase the amount of calculation for anti-counterfeiting detection, thereby reducing the overall speed of banknote verification. At the same time, it will also introduce more interference factors, thereby affecting the accuracy of banknote...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G07D7/206G07D7/1205
Inventor 李杰
Owner SHENZHEN YIHUA COMP