CN107293037A - Bill false distinguishing method and device based on anti-fake material spectral characteristic - Google Patents
Bill false distinguishing method and device based on anti-fake material spectral characteristic Download PDFInfo
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- CN107293037A CN107293037A CN201710516001.5A CN201710516001A CN107293037A CN 107293037 A CN107293037 A CN 107293037A CN 201710516001 A CN201710516001 A CN 201710516001A CN 107293037 A CN107293037 A CN 107293037A
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Abstract
The invention discloses a kind of bill false distinguishing method and device based on anti-fake material spectral characteristic, the anti-fake material spectral characteristic is that infrared laser excites anti-fake material to send visible point of light characteristic, including：Bill is sent into instrument internal to be detected；In note transport process, infrared laser beam is launched with fixed angle by Infrared laser emission head bill is scanned；The bill images being irradiated with a laser and after filtered optical filtering are gathered using imaging sensor, and the picture signal after collection is sent to image processing module；The position of luminous point, color, intensity and distribution character detection judge whether there is anti-fake material on bill in the picture signal gathered to imaging sensor；Point out bill testing result.
Description
Technical field
The present invention relates to bill authentication detection technology field, more particularly to a kind of bill false distinguishing based on anti-fake material spectral characteristic
Method and device.
Background technology
Bill is made of, according to certain forms, to write the certificate for paying certain amount of currency obligation exactly, be cashier or transport
The voucher of goods.Sensu lato bill includes various marketable securities and voucher, such as stock, treasury bill, corporate bond, invoice, carries
It is single etc.；Bill in the narrow sense then only refers to《Negotiable instrument law》Bill as defined in upper, only refers to the valuable card Securities for the purpose of pays money.
As economy is kept reforming and is deepened, bill space of a whole page diversity and complexity also accordingly increase, bill fakement phenomena
Emerged in an endless stream with technology, in harm social market economy order simultaneously, also bring very big difficulty to financial management work.Currently I
State's bill has the characteristics of circulation is big, the circulation cycle is long, and China's credit system not yet develops perfect in addition, therefore how to improve ticket
Turn into according to identification with identification system efficiency and reliability when the work of previous item important research.
Bill anti-counterfeit feature mainly has that paper false proof, ink be false proof, false proof three kinds of design and printing, and such as table 1 is summarized currently
The main method for anti-counterfeit of bill：
Table 1
By table 1, bill false distinguishing method mainly has observation, hand palpating manipulation, perspective and instrument detection method.Due to ticket
The phenomenon such as abrasion, colour fading, fuzzy is had according to using the long period, causes observation, hand palpating manipulation etc. to be difficult to correctly differentiate that bill is true
Puppet, therefore instrument detection method is the current most important method of bill false distinguishing, how further to improve instrument detection method bill false distinguishing reliable
Property also turn into current bill authentication detection technology main research.
The bill authentication detection technology being closer at present with this patent mainly has：
1), " a kind of false-identifying device of bank note or bill ", patent No. CN202142123U.The utility model provides a kind of base
In the bank note or bill false-identifying device of infrared external reflection/through-transmission technique, infrared light reflection/transmission plot is gathered by imaging sensor
Picture, imaging sensor connection computer, can Real Time Observation infrared external reflection/transmission image, identification note or bill by display
The true and false.Compared with the utility model, patent of the present invention employs high frequency-infrared laser as light source from Cleaning Principle, excites spy
Different anti-fake material sends visible ray, to judge papers, and Intelligent Measurement and display module is used, by imaging sensor, figure
Picture processing module is connected with display, automatic presentation of bill identification result.
2), " a kind of RMB digital phosphor detection module ", patent No. CN103578173A.The patent of invention provides a kind of
RMB fluorescence digital detection module, UV LED is separately mounted to first control circuit plate with reflection Optical Receivers
On second control circuit plate, reflection Optical Receivers includes receiving tube socket, optical filter, ultraviolet reception sensor, by interior
Put the ultraviolet reception sensor output RMB distinguishing signal of amplifying circuit, it is to avoid uv damage human eye.The invention is mainly adopted
Detected with ultraviolet light, by comparison, patent of the present invention is mainly detected using infrared laser, and infrared launcher and
There is fixed installation angle between reception device, reduction laser is radiated at the spot intensity on bill, improves characteristic image after filtering
Recognize accuracy.
The content of the invention
In order to solve the above technical problems, it is an object of the invention to provide a kind of bill mirror based on anti-fake material spectral characteristic
Fake method and device.
The purpose of the present invention is realized by following technical scheme：
Bill false distinguishing method based on anti-fake material spectral characteristic, the anti-fake material spectral characteristic excites for infrared laser
Anti-fake material sends visible point of light characteristic, and the bill false distinguishing method comprises the following steps：
Bill is sent to inside bill detector device by step A；
Step B launches infrared laser beam to ticket by Infrared laser emission head in note transport process with fixed angle
According to being scanned irradiation；
Step C gathers the bill images being irradiated with a laser and after filtered optical filtering using imaging sensor, and will collection
Picture signal afterwards is sent to image processing module；
It is special that step D gathers the position of luminous point in the picture signal sent, color, intensity and distribution to imaging sensor
Property detection judge whether there is anti-fake material on bill；
Step E points out bill testing result.
Bill false-identifying device based on anti-fake material spectral characteristic, the anti-fake material spectral characteristic excites for infrared laser
Anti-fake material sends visible point of light characteristic；Described device includes：Motor, bill transmission structure, Infrared laser emission/reception
Device, image processing module and testing result display module；It is described
Motor, for driving bill transmission structure；
Bill transmission structure, is detected for bill to be sent into instrument internal；
Infrared laser emission/reception device, including Infrared laser emission head, optical filter and imaging sensor；It is described infrared
Laser beam emitting head is used to launch infrared laser light beam with fixed angle；And gather red by the optical filter and imaging sensor
Bill images after outer laser irradiation；
Image processing module, for recognizing that infrared laser excites the characteristics of image of bill anti-counterfeit material；
Testing result display module, including auditory tone cues module and text importing module, are not sharing the same light for presentation of bill
Image and prompting testing result under spectrum.
Compared with prior art, one or more embodiments of the invention can have the following advantages that：
Certain setting angle θ is provided between Infrared laser emission head and bill plane1, laser is radiated at the light on bill
Point is oval, disperses infrared laser power, and has added optical filter as auxiliary detection device before imaging sensor, filters out
Light disturbance, improves subsequent characteristics image recognition accuracy.Practicality of the present invention is good, and complexity is low, simple to operate, and false distinguishing is accurate
Rate is high, can be widely applied in bill identification system.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, the reality with the present invention
Apply example to be provided commonly for explaining the present invention, be not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the bill false distinguishing method flow diagram based on anti-fake material spectral characteristic；
Fig. 2 is the bill false-identifying device structural representation based on anti-fake material spectral characteristic；
Fig. 3 is the bill false-identifying device workflow diagram based on anti-fake material spectral characteristic.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing to this hair
It is bright to be described in further detail.
As shown in figure 1, the bill false distinguishing method flow based on anti-fake material spectral characteristic,
The anti-fake material spectral characteristic is that infrared laser excites anti-fake material to send visible point of light characteristic, the bill mirror
Fake method comprises the following steps：
Bill is sent to inside bill detector device by step 10；
Step 20 launches infrared laser beam to ticket by Infrared laser emission head in note transport process with fixed angle
According to being scanned；
Step 30 gathers the bill images being irradiated with a laser and after filtered optical filtering using imaging sensor, and will collection
Picture signal afterwards is sent to image processing module；
Step 40 gathers position, color, intensity and the distribution of luminous point in the picture signal sent to imaging sensor
Characteristics Detection judges whether there is anti-fake material on bill；
Step 50 points out bill testing result.
Above-mentioned steps 10 are specifically included：Bill is placed at bill fake-identifying instrument ticket inlet, sensor circuit judges have bill to enter
Enter, send a signal to motor, motor driving bill transmission structure is started working, bill is at the uniform velocity sent to instrument internal and examined
Survey, subsequent motor reverse drive bill transmission structure is stopped after bill is exited.
Above-mentioned steps 20 are specifically included：Bill is in transmission, and control circuit can control infrared laser head to be sent out with fixed angle
Infrared laser beam irradiation bill is penetrated, oval spot is formed on bill, so that incident spot intensity is reduced, subsequently to bill
As can reach more preferable effect in filtering operation.
Above-mentioned steps 30 are specifically included：Anti-fake material can form visible point of light feature after being excited by infrared laser irradiation, adopt
The color and light intensity characteristic of detection luminous point are aided in optical filter, increases accuracy in detection, the scope that optical filter retains wavelength is：
λmin≤λ≤λmax, wherein λmin、λmaxIt is visible point of light minimum wavelength and maximum ripple that anti-fake material is excited by infrared laser respectively
It is long, λmin=500nm, λmax=600nm.Auxiliary inspection can be carried out using the optical filter of different optical filtering parameters to different type bill
Survey.Bill images after being irradiated by infrared laser can be gathered after optical filter filters by imaging sensor, carry out image
During collection, photo-sensitive cell receives the visible light signal for being excited and produced by infrared laser by bill, and converts optical signals into
Analog electrical signal, so as to be converted into the picture signal of some row pixels, and is sent to successive image processing module.
Above-mentioned steps 40 are specifically included：Image processing module gathers light in the picture signal sent to imaging sensor
Position, color, intensity and the distribution character detection of point, determine whether have anti-fake material to excite generation by infrared laser on bill
Visible point of light feature simultaneously excites locus, color, intensity and the motion change curve of luminous point to judge detection object by analysis
The true and false.
Above-mentioned steps 50 are specifically included：Image processing module sends testing result to testing result display module, by upper
Position machine prompting bill testing result, including text prompt and auditory tone cues；Testing result display module is also changeable to be directly displayed
The image of imaging sensor collection.
As shown in Fig. 2 the present embodiment additionally provides a kind of bill false-identifying device based on anti-fake material spectral characteristic, it is described
Anti-fake material spectral characteristic is that infrared laser excites anti-fake material to send visible point of light characteristic；Described device includes：Motor
300th, bill transmission structure 200, Infrared laser emission/reception device, image processing module and testing result display module 700；
It is described
Motor, for driving bill transmission structure；
Bill transmission structure, for bill 100 to be sent to inside bill detector device；
Infrared laser emission/reception device, including Infrared laser emission first 400, optical filter 500 and imaging sensor 600；
The Infrared laser emission head is used to launch infrared laser light beam with fixed angle；And pass through the optical filter and imaging sensor
Gather the bill images after being irradiated by infrared laser；
Image processing module, for recognizing the bill images feature after being irradiated by infrared laser；
Testing result display module, including auditory tone cues module and text importing module, are not sharing the same light for presentation of bill
Image and testing result under spectrum.
Above-mentioned motor, bill transmission structure, Infrared laser emission/reception device, image processing module are respectively mounted
Inside bill fake-identifying instrument；Bill transmission structure, below bill plane of inlet；Motor, installed in bill transmission
Texture edge.
There is θ between above-mentioned Infrared laser emission head and bill horizontal plane1=67.5 ° of setting angles；Optical filter is arranged on figure
As the positive front side of sensor, optical filter retains wave-length coverage and is：λmin≤λ≤λmax；Imaging sensor, installed in bill plane of inlet
Upper right side, with Infrared laser emission head into θ2=45 ° of angles.
As shown in figure 3, being the bill false-identifying device workflow based on anti-fake material spectral characteristic, its flow is real as described above
A method and step 10- step 50 is applied, is not described in detail herein.
Although disclosed herein embodiment as above, described content is only to facilitate understanding the present invention and adopting
Embodiment, is not limited to the present invention.Any those skilled in the art to which this invention pertains, are not departing from this
On the premise of the disclosed spirit and scope of invention, any modification and change can be made in the implementing form and in details,
But the scope of patent protection of the present invention, still should be subject to the scope of the claims as defined in the appended claims.
Claims (7)
1. the bill false distinguishing method based on anti-fake material spectral characteristic, it is characterised in that the anti-fake material spectral characteristic is red
Outer laser excitation anti-fake material sends visible point of light characteristic, and the bill false distinguishing method comprises the following steps：
Bill is sent to inside bill detector device by step A；
Step B launches infrared laser beam with fixed angle in note transport process, by Infrared laser emission head and bill is entered
Row scanning irradiation；
Step C gathers the bill images irradiated by infrared laser and after filtered optical filtering using imaging sensor, and will collection
Picture signal afterwards is sent to image processing module；
Step D gathers the position of luminous point, color, intensity and distribution character in the picture signal sent to imaging sensor and examined
Survey judges whether there is anti-fake material on bill；
Step E points out bill testing result.
2. the bill false distinguishing method as claimed in claim 1 based on anti-fake material spectral characteristic, it is characterised in that the step
B is specifically included：
Bill is in transmission, and control circuit can control infrared laser head to irradiate bill with fixed angle transmitting infrared laser beam,
Oval spot is formed on bill, so that incident spot intensity is reduced, in favor of follow-up bill images filtering operation；
The characteristic of visible point of light is excited and produced on bill by infrared laser using anti-fake material, and by detecting luminous point face
Color, intensity and distribution character judge papers.
3. the bill false distinguishing method as claimed in claim 1 based on anti-fake material spectral characteristic, it is characterised in that the step
C is specifically included：
Anti-fake material can form visible point of light feature after being excited by infrared laser irradiation, aid in detecting the face of luminous point using optical filter
Color and light intensity characteristic, increase accuracy in detection, and the scope that optical filter retains wavelength is：λmin≤λ≤λmax, wherein λmin、λmaxPoint
It is not the minimum wavelength and maximum wavelength for the visible point of light that anti-fake material is excited by infrared laser；
Bill images after being irradiated by infrared laser can be gathered after optical filter filters by imaging sensor, carry out image
During collection, photo-sensitive cell receives the visible light signal for being excited and produced by infrared laser by bill, and converts optical signals into
Analog electrical signal, so as to be converted into the picture signal of some row pixels, and is sent to successive image processing module.
4. the bill false distinguishing method as claimed in claim 1 based on anti-fake material spectral characteristic, it is characterised in that the step
D is specifically included：
Image processing module gathers the position of luminous point in the picture signal sent, color, intensity to imaging sensor and divided
Cloth Characteristics Detection, determines whether have anti-fake material to excite the visible point of light feature of generation and by dividing by infrared laser on bill
Analysis excites locus, color, intensity and the motion change curve of luminous point to judge the true and false of detection object.
5. the bill false-identifying device based on anti-fake material spectral characteristic, it is characterised in that the anti-fake material spectral characteristic is red
Outer laser excitation anti-fake material sends visible point of light characteristic；Described device includes：Motor, bill transmission structure, it is infrared swash
Light transmission/reception, image processing module and testing result display module；It is described
Motor, for driving bill transmission structure；
Bill transmission structure, for bill to be sent into detection zone；
Infrared laser emission/reception device, including Infrared laser emission head, optical filter and imaging sensor；The infrared laser
Emitting head is used to launch infrared laser light beam with fixed angle；And swashed by the optical filter and imaging sensor collection by infrared
Bill images after light irradiation；
Image processing module, for recognizing the bill images feature after being irradiated by infrared laser；
Testing result display module, including auditory tone cues module and text importing module, for presentation of bill under different spectrum
Image and prompting testing result.
6. the bill false-identifying device as claimed in claim 5 based on anti-fake material spectral characteristic, it is characterised in that described
Motor, bill transmission structure, Infrared laser emission/reception device, image processing module are separately mounted to bill mirror
Inside pseudo- instrument；
Bill transmission structure, below bill plane of inlet；
Motor, installed in bill transmission structure side.
7. the bill false-identifying device as claimed in claim 5 based on anti-fake material spectral characteristic, it is characterised in that described
There is θ between Infrared laser emission head and bill horizontal plane1Setting angle；Optical filter is arranged on the positive front side of imaging sensor, filter
Mating plate retain wavelength scope be：λmin≤λ≤λmax；Imaging sensor, installed in bill plane of inlet upper right side, swashs with infrared
Light emitting head is into θ2Angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710516001.5A CN107293037A (en) | 2017-06-29 | 2017-06-29 | Bill false distinguishing method and device based on anti-fake material spectral characteristic |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710516001.5A CN107293037A (en) | 2017-06-29 | 2017-06-29 | Bill false distinguishing method and device based on anti-fake material spectral characteristic |
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| CN107293037A true CN107293037A (en) | 2017-10-24 |
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| CN201710516001.5A Pending CN107293037A (en) | 2017-06-29 | 2017-06-29 | Bill false distinguishing method and device based on anti-fake material spectral characteristic |
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Cited By (3)
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| CN111257277A (en) * | 2018-11-30 | 2020-06-09 | 湖南中烟工业有限责任公司 | A method for determining the similarity of tobacco leaves based on near-infrared spectroscopy |
| CN112329673A (en) * | 2020-11-12 | 2021-02-05 | 北京文通科技有限公司 | Anti-counterfeiting fiber identification method, anti-counterfeiting identification device and storage medium |
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Application publication date: 20171024 |