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Banknote defect degree verification method and device

A verification method and a verification device technology, which are applied in the field of map navigation, can solve problems such as dark brightness and poor light transmission, and achieve the effect of improving the accurate recognition rate

Inactive Publication Date: 2017-05-17
SHENZHEN YIHUA COMP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the 2015 version of banknotes has newly added the glorious light-changing area and the light-changing hollowed-out security line area. These two areas have poor light transmission, and the image brightness in the green light reflection image is relatively dark, and it is easy to be identified as a defective banknote.

Method used

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  • Banknote defect degree verification method and device
  • Banknote defect degree verification method and device
  • Banknote defect degree verification method and device

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Experimental program
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Embodiment 1

[0051] figure 1 It is a flow chart of a banknote defect degree verification method provided in Embodiment 1 of the present invention. This embodiment is applicable to the verification of banknote defect degree. The method can be executed by the banknote defect degree verification device provided in the embodiment of the present invention. Such as figure 1 shown, including:

[0052] S101. Use the first light to irradiate the 2015-version banknote optically variable hollowed-out security line area and luster optically variable area to acquire corresponding first area images.

[0053] Wherein, the first light and the second light are two different types of light. Regarding the characteristics of the 2015 banknotes, the first light is preferably visible light, but is not limited thereto, and can also be other light that can detect defects in the optically variable hollowed-out security thread area and the luster optically variable area.

[0054] S102. Use the second light to ir...

Embodiment 2

[0080] Figure 2A It is a flow chart of a banknote defect degree verification method provided by Embodiment 2 of the present invention. On the basis of the above embodiments, this embodiment will use the first light to irradiate the optically variable hollow security line area and the luster optically variable area of ​​the 2015 version of the banknote Obtain the corresponding image of the first area, and optimize it to use visible light to irradiate the light-changing hollow security line area and the glorious light-changing area of ​​the 2015 banknote to obtain the front and back images of visible light; at the same time, use the second light to illuminate the 2015 version of the banknote except for the light-changing hollow security line area Acquiring the image of the second area corresponding to the area other than the optically variable area of ​​brilliance, optimized to use infrared rays to irradiate the 2015 version of the banknote except for the area of ​​the optically...

Embodiment 3

[0089] Figure 3A It is a flow chart of a banknote defect degree verification method provided by Embodiment 3 of the present invention. On the basis of the above embodiments, this embodiment determines the defects of 2015 banknotes according to the first region image and / or the second region image. The degree is optimized to binarize the first region image and / or the second region image, and calculate the area and / or perimeter of the single connected region; determine the defect degree of the 2015 version of the banknote according to the area and / or perimeter . Such as Figure 3A shown, including:

[0090] S301. Use the first light to irradiate the 2015-version banknote optically variable hollowed-out security line area and luster optically variable area to acquire corresponding first area images.

[0091] S302. Use the second light to irradiate the area of ​​the 2015 version of the banknote except the optically variable hollow security line area and the optically variable ...

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Abstract

The invention discloses a banknote defect degree verification method and device. The banknote defect degree verification method includes: using a first light ray to irradiate an optical-variable hollow-out safety line area and a brilliance light-variable area of a 2015-version banknote to acquire a first corresponding area image; using a second light ray to irradiate areas except the optical-variable hollow-out safety line area and the brilliance light-variable area of the 2015-version banknote to acquire a second corresponding area image; determining defect degree of the 2015-version banknote according to the first area image and / or the second area image. The different light rays are used to irradiate the 2015-version banknote respectively according to features of the 2015-version banknote to acquire the first area image and the second area image, the defect degree of the 2015-version banknote is determined according to the first area image and / or the second area image, shortcomings in existing greenlight banknote verification technology are overcome, and accurate banknote recognition rate can be increased.

Description

technical field [0001] The invention relates to the technical field of map navigation, in particular to a banknote defect degree verification method and device. Background technique [0002] With the issuance of a new generation of banknotes, namely the 2015 version, the existing verification methods for the degree of defection of banknotes can no longer meet the needs. [0003] At present, for old banknotes, the commonly used defect detection method mainly uses green light reflection to judge. However, the 2015 version of banknotes has newly added a lustrous light-changing area and a light-changing hollow security line area. These two areas have poor light transmission, and the image brightness in the green light reflection image is relatively dark, which is easy to be identified as a defective banknote. Contents of the invention [0004] The invention provides a method and device for verifying the defect degree of banknotes, so as to improve the accurate identification ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07D7/187G07D7/20
CPCG07D7/187G07D7/20
Inventor 曹婧蕾
Owner SHENZHEN YIHUA COMP