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Method and device for authenticating banknotes

A technology for banknotes and forgery detection, applied in the field of banknotes forgery detection, can solve problems such as complex algorithms and complicated algorithm updates, and achieve the effects of reducing complexity, improving efficiency and reducing running time.

Inactive Publication Date: 2019-03-12
SHENZHEN YIHUA COMP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When some special cases are identified incorrectly, it is necessary to retrain the neural network coefficients to correct this problem. The algorithm itself is complicated, and the algorithm update is also complicated.

Method used

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  • Method and device for authenticating banknotes
  • Method and device for authenticating banknotes
  • Method and device for authenticating banknotes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Please refer to Figure 1A , 1B , 1C, 1D and 1E, where, Figure 1A It is a schematic flowchart of a banknote authenticating method provided in Embodiment 1 of the present invention. The method in this embodiment is applied to a banknote authentication terminal, and is suitable for scenarios of banknote authentication.

[0028] The counterfeiting method for banknotes may include the following steps:

[0029] S110: Locate the fluorescence region in the fluorescence image of the banknote to be detected, and obtain the position information of the fluorescence region in the fluorescence image to be detected.

[0030] Exemplarily, the fluorescent region is positioned in the fluorescence image of the banknote to be detected obtained by CIS (Contact Image Sensor, contact image sensor), and the position information of the fluorescent region in the fluorescence image to be detected is obtained. like Figure 1B , 1C The fluorescence maps shown in , 1D and 1E, where the brighte...

Embodiment 2

[0040] Please refer to figure 2 , which is a schematic flowchart of a banknote authenticating method provided in Embodiment 2 of the present invention. The main difference between this embodiment and Embodiment 1 is that an optional implementation manner of the foregoing S110 is further provided.

[0041] The counterfeiting method for banknotes may include the following steps:

[0042] S201: Divide the fluorescence map of the banknote to be detected into multiple partitions of the same size, select a plurality of sample partitions from the partitions, and the sample partitions are evenly distributed in the fluorescence map.

[0043] Exemplarily, the fluorescence image of the banknote to be detected is divided into a plurality of partitions with substantially the same size, for example, divided into 100 to 1000 partitions with substantially the same size.

[0044]For example, taking the size of the fluorescence map of banknotes to be detected as 200*400 as an example, the fl...

Embodiment 3

[0056] Please refer to image 3 , which is a schematic structural diagram of a banknote authenticating device provided in Embodiment 3 of the present invention. This kind of banknote authenticating device 300 may include the following contents:

[0057] The positioning module 310 is configured to locate the fluorescent area in the fluorescent image of the banknote to be detected, and obtain the position information of the fluorescent area in the fluorescent image to be detected.

[0058] The identification module 320 is configured to identify the orientation information of the banknote to be detected according to the position information to be detected and the standard position information of the standard fluorescent area in the fluorescence image of the genuine coin.

[0059] The determination module 330 is configured to determine the authenticity of the banknote to be detected according to the position information to be detected, the standard position information, and the f...

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Abstract

The invention discloses a banknote authentication method and device. The banknote authentication method comprises the following steps: positioning a fluorescent area in a fluorescent image of a banknote to be checked, and obtaining position information to be detected of the fluorescent area in the fluorescent image; according to the position information to be detected and standard position information of a standard fluorescent area in a real banknote fluorescent image, identifying face direction information of the banknote to be checked; and on the basis of the identified face direction information, and according to the position information to be detected and the standard position information as well as fluorescent characteristic information obtained by identifying fluorescent characteristics in the fluorescent area, determining the authenticity of the banknote to be checked. Through the position information to be detected and the standard position information as well as the fluorescent characteristic information, the face direction information of the banknote is identified and the authenticity of the banknote is determined; and the face direction information of the banknote is identified, and meanwhile, the fluorescent characteristics of the banknote in the fluorescent area are identified, thereby reducing overall banknote authentication algorithm operation time, reducing complexity and improving banknote authentication efficiency.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of counterfeit banknote verification, and in particular, to a method and device for counterfeit banknote verification. Background technique [0002] Banknote orientation is an important feature of banknote authentication, and banknote orientation identification is the basis of banknote authentication. [0003] In the existing banknote identification technology, the face of the banknote is mainly identified through the neural network algorithm, and a large amount of data needs to be trained to obtain the network coefficients. When some special cases are identified incorrectly, the neural network coefficients need to be retrained to correct this problem. The algorithm itself is complicated, and the algorithm update is also complicated. Contents of the invention [0004] In order to solve related technical problems, the present invention provides a banknote authentication method and...

Claims

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Application Information

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