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Slice medium thickness anomaly detection method and device, storage medium and equipment

A technology for anomaly detection and medium thickness, which is applied to banknote authenticity inspection, instruments, calculations, etc., which can solve the problems of prone to false detection and missed detection, low detection accuracy, and inability to accurately determine the thickness of the banknote to be detected. and other issues to achieve the effect of reducing the probability of false detection and missed detection and improving accuracy

Pending Publication Date: 2021-08-13
SHENZHEN YIHUA TIME TECH
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AI Technical Summary

Problems solved by technology

However, there is a problem in the current method for abnormal thickness detection of banknotes: the thickness of each position of the banknote to be detected cannot be accurately determined.
Therefore, the current method for detecting the abnormal thickness of banknotes is not very accurate, and it is prone to false detection and missed detection.

Method used

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  • Slice medium thickness anomaly detection method and device, storage medium and equipment
  • Slice medium thickness anomaly detection method and device, storage medium and equipment
  • Slice medium thickness anomaly detection method and device, storage medium and equipment

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Embodiment Construction

[0074] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0075] see figure 1 , is a schematic flow chart of a method for detecting an abnormal thickness of a sheet medium in an embodiment of the present application, and the method includes:

[0076] Step 101. Obtain the thickness data of the sheet medium to be detected in each column of channels, and obtain the target image after the image of the sheet medium to be detected is rotated;

[0077] In the embodiment of the present application, the above-mentioned method for...

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Abstract

An embodiment of the invention discloses a slice medium thickness anomaly detection method and device, a storage medium and equipment. According to the method and the device, the determination of an effective column channel us realized through acquiring the thickness data and a target image of a to-be-detected slice medium, and the searching of the boundary of the to-be-detected slice medium is achieved; a thickness fluctuation matrix is generated through using the effective column channel and the thickness data, and the thickness fluctuation matrix is used for representing the thickness fluctuation value of the thickness value of each position in the to-be-detected slice medium deviating from the thickness value of the to-be-detected slice medium, so that the determination of the thickness fluctuation condition of the to-be-detected slice medium can be effectively improved; and whether the thickness of the to-be-detected slice medium is abnormal or not is determined by using the thickness fluctuation matrix and the thickness detection template, so that the accuracy of thickness anomaly detection can be effectively improved, and the probability of false detection and missing detection is reduced.

Description

technical field [0001] The invention relates to the technical field of financial equipment, in particular to a method and device for detecting abnormal thickness of a sheet medium, a storage medium and equipment. Background technique [0002] At present, the detection of abnormal thickness of banknotes is generally based on the average thickness of the current banknote by pre-setting the protrusion ratio threshold. If the thickness of the protrusion ratio is higher than the set threshold and reaches the set window range, then the thickness of the banknote is judged. There is an exception. However, there is a problem in the current method for abnormal thickness detection of banknotes: the thickness protrusions at various positions of the banknotes to be detected cannot be accurately determined. Therefore, the detection accuracy of the current method for detecting abnormal thickness of banknotes is not high, and false detection and missed detection are prone to occur. Conte...

Claims

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Application Information

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IPC IPC(8): G07D7/164G07D7/20
CPCG07D7/164G07D7/2008
Inventor 包宜鉴
Owner SHENZHEN YIHUA TIME TECH
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