Method and system for detecting color fiber filaments of bills

A detection method and a fiber filament technology are applied in the field of financial security identification, which can solve the problems of large error and low extraction accuracy, and achieve the effect of improving the accuracy and solving the low extraction accuracy.

Active Publication Date: 2022-06-28
HUNAN GREATWALL INFORMATION FINANCIAL EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a bill color fiber detection method and system, which can solve the technical problems of low extraction accuracy and large error in the extraction of fiber in the prior art

Method used

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  • Method and system for detecting color fiber filaments of bills
  • Method and system for detecting color fiber filaments of bills
  • Method and system for detecting color fiber filaments of bills

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Embodiment Construction

[0050] The embodiments of the present invention are described in detail below. This embodiment is carried out on the basis of the technical solutions of the present invention, and provides a detailed implementation manner and a specific operation process, and further explains the technical solutions of the present invention.

[0051] refer to figure 1 As shown, the present invention provides a method for detecting colored filaments of bills, comprising the following steps:

[0052] Step 1, use ultraviolet fluorescence to scan the ticket to obtain the image of the anti-counterfeiting ticket, such as figure 2 As shown, image enhancement processing is performed on it to obtain an enhanced anti-counterfeiting bill image;

[0053] Due to the anti-counterfeiting characteristics of fiber filaments, the fiber filament characteristics of the image scanned by UV fluorescence are usually dim, and the image enhancement processing can improve the recognition of the darker fiber filament,...

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Abstract

The invention discloses a bill color fiber filament detection method and system, wherein the method comprises: using ultraviolet fluorescence to scan the bill to obtain an anti-counterfeit bill image and performing image enhancement processing; converting the enhanced anti-counterfeit bill image from RGB to HSV color space for color binary value Segmentation, followed by dilation and erosion operations and Unicom domain analysis, to obtain the first candidate area image of the fiber; grayscale conversion of the enhanced anti-counterfeit bill image, and then bilateral filtering, binarization, expansion and erosion operations in sequence, Obtain the second candidate area image of the fiber; carry out the logical AND operation on the two candidate area images of the fiber, and then analyze the connected domain of the obtained double-verified fiber image to obtain the final fiber image, which can be The position of the fibers is calibrated, and the size and weight of each fiber are counted, which serves as an important basis for identifying the counterfeit features of the bill fibers. The invention has high detection precision for fiber filaments.

Description

technical field [0001] The invention belongs to the technical field of financial security identification, relates to the anti-counterfeiting identification technology of bills, and mainly refers to a method and system for detecting colored fibers of bills. Background technique [0002] The widespread use of financial bills in the market has led to more and more illegal cases of counterfeiting bills, seriously endangering my country's financial security, harming the interests of individuals, enterprises and banks, and causing great social harm. At present, the verification of the authenticity of bills requires manual processing, and a professional, automated and efficient bill identification processing system is urgently needed. [0003] Color fiber anti-counterfeiting is one of the important anti-counterfeiting components of financial bills. It is the main method to verify the authenticity of bills by judging whether the bills scanned by ultraviolet fluorescence have fiber c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G07D7/20G07D7/12
CPCG07D7/2008G07D7/2016G07D7/12
Inventor 李杰王向锋王泽平黄曼婷
Owner HUNAN GREATWALL INFORMATION FINANCIAL EQUIP
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