CN107895425A - Banknote tester, money identifier, intelligent terminal and banknote detection method - Google Patents
Banknote tester, money identifier, intelligent terminal and banknote detection method Download PDFInfo
- Publication number
- CN107895425A CN107895425A CN201711270908.4A CN201711270908A CN107895425A CN 107895425 A CN107895425 A CN 107895425A CN 201711270908 A CN201711270908 A CN 201711270908A CN 107895425 A CN107895425 A CN 107895425A
- Authority
- CN
- China
- Prior art keywords
- camera
- image
- banknote
- vertical range
- photocentre
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The present invention proposes a kind of banknote tester, money identifier, intelligent terminal and banknote detection method, wherein, the banknote tester includes：First camera and second camera, first camera and the second camera are arranged on the same side of the banknote tester, first camera is identical with the focal length of the described second shooting, first camera is used for the first image for shooting banknote to be identified, the second camera is used for the second image for shooting the banknote, described first image and second image are at grade, the vertical range of plane where described first image and second image are used to calculate the Target Identification Point to described first image and second image on the banknote, so that the true and false of the banknote to be identified according to the vertical range.Pass through technical scheme, it is ensured that the accuracy rate of currency examination, while meet the currency examination demand of users.
Description
Technical field
The present invention relates to banknote identification technology field, in particular to banknote tester, money identifier, intelligent terminal and test
Paper money method.
Background technology
With the development of science and technology the fraud technology of banknote increasingly improves, the requirement to currency examination equipment is also more and more therewith
It is high.At present, human eye currency examination or simple infrared currency examination device can not meet currency examination demand.Although the and currency examination equipment of specialty
Counterfeit money can be identified with higher accuracy rate, still, due to the currency examination equipment volume of specialty it is huge, expensive the shortcomings that, lead
Cause the application of the currency examination equipment of specialty not extensive, the currency examination demand of users can not be met.
Therefore, how to ensure the accuracy rate of currency examination, while meet that the currency examination demand of users turns into skill urgently to be resolved hurrily
Art problem.
The content of the invention
The present invention is based on above mentioned problem, it is proposed that a kind of new technical scheme, it is ensured that the accuracy rate of currency examination, together
When meet the currency examination demand of users.
In view of this, the first aspect of the present invention proposes a kind of banknote tester, including：First camera and the second shooting
Head, first camera and the second camera are arranged on the same side of the banknote tester, first camera and
The focal length of second shooting is identical, first image of first camera for shooting banknote to be identified, and described second
Camera is used for the second image for shooting the banknote, and described first image and second image are at grade, described
First image and second image are for calculating the Target Identification Point on the banknote to described first image and described second
The vertical range of plane where image, so that the true and false of the banknote to be identified according to the vertical range.
In the technical scheme, meeting printed with fine figure line on banknote, because picture and text have certain ink deep on genuine notes ticket
Shallow change, picture and text are concavo-convex changes, for example, the collar of personage and button are all textured on genuine notes ticket, user's finger is touched
Touch and rough sensation is had when on picture and text, and picture and text are flat on counterfeit money, without lines.Based on this, can distinguish
The image of banknote is shot by dual camera, Target Identification Point in banknote is calculated to shooting according to image image-forming principle
Banknote image where plane vertical range, so that more accurately authenticity of banknotes be identified according to the vertical range.
For example, selecting multiple Target Identification Points in the button region of personage on banknote, each Target Identification Point is calculated to banknote image
The vertical range of place plane, when the vertical range of this multiple Target Identification Point is equal, illustrate the figure in the button region
Text is smooth, and the situation of concavo-convex change is not presented, just identifies that the banknote is counterfeit money yet.Further, since taken the photograph by two
As head shooting banknote image, then processing step more than computing device identifies that counterfeit money can complete currency examination, avoids using
The currency examination equipment expensive, volume is excessive, so as to meet the currency examination demand of users.
In the above-mentioned technical solutions, it is preferable that also include：Processor, for obtaining first camera and described
The focal length of two cameras, imaging point of the Target Identification Point in described first image and the Target Identification Point are described the
The horizontal range and the photocentre of first camera and the photocentre of the second camera between imaging point on two images
The distance between, according to the photocentre of the focal length, the horizontal range and first camera and the second camera
The distance between photocentre, calculate the vertical range.
In any of the above-described technical scheme, it is preferable that the processor especially by below equation calculate it is described vertically away from
From,
Wherein, Z represents the vertical range, and f represents the focal length, b represent the photocentre of first camera with it is described
The distance between photocentre of second camera, e represent the horizontal range.
In the technical scheme, the Target Identification Point that can be calculated exactly by above formula on banknote images to double
The vertical range of plane where the image of head shooting, so as to ensure that the reliability of identification authenticity of banknotes.
In any of the above-described technical scheme, it is preferable that the optical axis of first camera and the light of the second camera
Axle is parallel or has angle, in the case where the optical axis of first camera and the optical axis of the second camera have angle, institute
State processor to be additionally operable to, parameter correction is carried out to first camera and the second camera, to obtain in same plane
On described first image and second image.
In the technical scheme, when the optical axis of the first camera and the parallel optical axis of second camera, the first camera
The image that the image and second camera photographed photographs is just at grade, it is not necessary to which the two cameras are photographed
Image be corrected.When the optical axis of the first camera and the optical axis of second camera are not parallel, that is, when having certain angle,
The image that the image and second camera that one camera photographs photograph not at grade, by the two cameras
Parameter correction is carried out, to cause image that the two cameras photograph at grade, so as to more easily calculate
The vertical range of plane where the image that Target Identification Point on banknote is shot to dual camera.
In any of the above-described technical scheme, it is preferable that also include：Communication module, for by described first image and described
Second image is sent to intelligent terminal, for the Target Identification Point on the intelligent terminal calculating banknote to first figure
The vertical range of plane where picture and second image, and the true and false of the banknote is known according to the vertical range
Not.
In the technical scheme, after the image that dual camera shoots banknote to be identified, will can photograph the
One image and the second image are sent to intelligent terminal, so that intelligent terminal is handled to identify the first image and the second image
The true and false of banknote.
In any of the above-described technical scheme, it is preferable that the communication module is：Bluetooth module, NFC module or Wi-Fi
Module.
The second aspect of the present invention proposes a kind of money identifier, including the currency examination as any one of above-mentioned technical scheme
Device, therefore, the money identifier have and above-mentioned technical proposal any one of banknote tester identical technique effect, herein
Repeat no more.
The third aspect of the present invention proposes a kind of intelligent terminal, including in above-mentioned technical proposal Section 1 into Section 4
Any one described in banknote tester, therefore, the intelligent terminal have and above-mentioned technical proposal in Section 1 into Section 4
Banknote tester identical technique effect described in any one, will not be repeated here.
The fourth aspect of the present invention proposes a kind of banknote detection method, including：Paper money to be identified is shot by the first camera
First image of ticket, the second image of the banknote is shot by second camera, wherein, first camera and described
Two shootings are arranged on the same side and focal length is identical, described first image and second image at grade, described first
Image and second image are for calculating the Target Identification Point on the banknote to described first image and second image
The vertical range of place plane, so that the true and false of the banknote to be identified according to the vertical range.
In the technical scheme, meeting printed with fine figure line on banknote, because picture and text have certain ink deep on genuine notes ticket
Shallow change, picture and text are concavo-convex changes, for example, the collar of personage and button are all textured on genuine notes ticket, user's finger is touched
Touch and rough sensation is had when on picture and text, and picture and text are flat on counterfeit money, without lines.Based on this, can distinguish
The image of banknote is shot by dual camera, Target Identification Point in banknote is calculated to shooting according to image image-forming principle
Banknote image where plane vertical range, so that more accurately authenticity of banknotes be identified according to the vertical range.
For example, selecting multiple Target Identification Points in the button region of personage on banknote, each Target Identification Point is calculated to banknote image
The vertical range of place plane, when the vertical range of this multiple Target Identification Point is equal, illustrate the figure in the button region
Text is smooth, and the situation of concavo-convex change is not presented, just identifies that the banknote is counterfeit money yet.Further, since taken the photograph by two
As head shooting banknote image, then processing step more than computing device identifies that counterfeit money can complete currency examination, avoids using
The currency examination equipment expensive, volume is excessive, so as to meet the currency examination demand of users.
In the above-mentioned technical solutions, it is preferable that the banknote detection method is used for intelligent terminal, and the banknote detection method also includes：
Obtain the imaging of the focal length, the Target Identification Point of first camera and the second camera in described first image
Horizontal range and first camera between imaging point on second image of point and the Target Identification Point
The distance between photocentre of photocentre and the second camera；Taken the photograph according to the focal length, the horizontal range and described first
The distance between photocentre as photocentre and the second camera of head, calculates the vertical range.
In any of the above-described technical scheme, it is preferable that the vertical range is calculated by below equation,
Wherein, Z represents the vertical range, and f represents the focal length, b represent the photocentre of first camera with it is described
The distance between photocentre of second camera, e represent the horizontal range.
In the technical scheme, the Target Identification Point that can be calculated exactly by above formula on banknote images to double
The vertical range of plane where the image of head shooting, so as to ensure that the reliability of identification authenticity of banknotes.
In any of the above-described technical scheme, it is preferable that the optical axis of first camera and the light of the second camera
Axle is parallel or has angle, in the case where the optical axis of first camera and the optical axis of the second camera have angle, also
Including：Parameter correction is carried out to first camera and the second camera, to obtain described the at grade
One image and second image.
In the technical scheme, when the optical axis of the first camera and the parallel optical axis of second camera, the first camera
The image that the image and second camera photographed photographs is just at grade, it is not necessary to which the two cameras are photographed
Image be corrected.When the optical axis of the first camera and the optical axis of second camera are not parallel, that is, when having certain angle,
The image that the image and second camera that one camera photographs photograph not at grade, by the two cameras
Parameter correction is carried out, to cause image that the two cameras photograph at grade, so as to more easily calculate
The vertical range of plane where the image that Target Identification Point on banknote is shot to dual camera.
In any of the above-described technical scheme, it is preferable that the banknote detection method is used for money identifier, and the banknote detection method is also wrapped
Include：Described first image and second image are sent to intelligent terminal, so that the intelligent terminal is calculated on the banknote
Target Identification Point to plane where described first image and second image vertical range, and according to the vertical range
The true and false of the banknote is identified.
In the technical scheme, after the image that dual camera shoots banknote to be identified, will can photograph the
One image and the second image are sent to intelligent terminal, so that intelligent terminal is handled to identify the first image and the second image
The true and false of banknote.
Pass through technical scheme, it is ensured that the accuracy rate of currency examination, while meet the currency examination demand of users.
Brief description of the drawings
Fig. 1 shows the block diagram of banknote tester according to an embodiment of the invention；
Fig. 2 shows the principle schematic of the stereoscopic vision according to the present invention；
Fig. 3 shows the principle schematic of the banknote identification according to an embodiment of the invention based on dual camera；
Fig. 4 shows the block diagram of money identifier according to an embodiment of the invention；
Fig. 5 shows the block diagram of intelligent terminal according to an embodiment of the invention；
Fig. 6 shows the block diagram of banknote tester according to another embodiment of the invention；
Fig. 7 shows the block diagram of money identifier according to another embodiment of the invention；
Fig. 8 shows the schematic flow sheet of banknote detection method according to an embodiment of the invention.
Embodiment
It is below in conjunction with the accompanying drawings and specific real in order to which the above objects, features and advantages of the present invention can be more clearly understood that
Mode is applied the present invention is further described in detail.It should be noted that in the case where not conflicting, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be different from other modes described here using other to implement, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Fig. 1 shows the block diagram of banknote tester according to an embodiment of the invention.
As shown in figure 1, banknote tester 100 according to an embodiment of the invention, including：First camera 102 and
Two cameras 104, first camera 102 and the second camera 104 are arranged on the same of the banknote tester 100
Side, first camera 102 is identical with the focal length of the described second shooting, and first camera 102 is to be identified for shooting
Banknote the first image, the second camera 104 is used to shoot the second image of the banknote, described first image and institute
State the second image at grade, described first image and second image are used to calculate the target identification on the banknote
Point to plane where described first image and second image vertical range, with according to the vertical range to the banknote
The true and false be identified.
In addition, banknote tester 100 also includes：Processor 106, for obtaining first camera 102 and described second
The focal length of camera 104, imaging point of the Target Identification Point in described first image are with the Target Identification Point described
The photocentre and the second camera of horizontal range between imaging point and first camera 102 on second image
The distance between 104 photocentre, according to the focal length, the photocentre of the horizontal range and first camera 102 and institute
The distance between photocentre of second camera 104 is stated, calculates the vertical range.
In the technical scheme, meeting printed with fine figure line on banknote, because picture and text have certain ink deep on genuine notes ticket
Shallow change, picture and text are concavo-convex changes, for example, the collar of personage and button are all textured on genuine notes ticket, user's finger is touched
Touch and rough sensation is had when on picture and text, and picture and text are flat on counterfeit money, without lines.Based on this, can distinguish
The image of banknote is shot by dual camera, Target Identification Point in banknote is calculated to shooting according to image image-forming principle
Banknote image where plane vertical range, so that more accurately authenticity of banknotes be identified according to the vertical range.
For example, selecting multiple Target Identification Points in the button region of personage on banknote, each Target Identification Point is calculated to banknote image
The vertical range of place plane, when the vertical range of this multiple Target Identification Point is equal, illustrate the figure in the button region
Text is smooth, and the situation of concavo-convex change is not presented, just identifies that the banknote is counterfeit money yet.Further, since taken the photograph by two
As head shooting banknote image, then processor 106 performs the processing step of the above and identifies that counterfeit money can complete currency examination, avoids making
With the excessive currency examination equipment of expensive, volume, so as to meet the currency examination demand of users.
In the above-mentioned technical solutions, it is preferable that the processor 106 especially by below equation calculate it is described vertically away from
From,
Wherein, Z represents the vertical range, and f represents the focal length, and b represents photocentre and the institute of first camera 102
The distance between photocentre of second camera 104 is stated, e represents the horizontal range.
In the technical scheme, the Target Identification Point that can be calculated exactly by above formula on banknote images to double
The vertical range of plane where the image of head shooting, so as to ensure that the reliability of identification authenticity of banknotes.
In any of the above-described technical scheme, it is preferable that the optical axis and the second camera of first camera 102
104 optical axis is parallel or has angle, has folder in the optical axis of first camera 102 and the optical axis of the second camera 104
In the case of angle, the processor 106 is additionally operable to, and parameter is carried out to first camera 102 and the second camera 104
Correction, to obtain described first image at grade and second image.
In the technical scheme, when the optical axis of the first camera 102 is parallel with the optical axis of second camera 104, first
The image that the image and second camera 104 that camera 102 photographs photograph is just at grade, it is not necessary to the two
The image that camera photographs is corrected.When the optical axis of the first camera 102 and the optical axis of second camera 104 are not parallel,
When having certain angle, the image that image and second camera 104 that the first camera 102 photographs photograph is not same
In plane, by carrying out parameter correction to the two cameras, to cause the image that the two cameras photograph same flat
On face, so as to more easily calculate the vertical of plane where the image that the Target Identification Point on banknote is shot to dual camera
Distance.
The principle of stereoscopic vision is illustrated with reference to Fig. 2.
As shown in Fig. 2 there are two cameras, the relevant parameter of left and right camera is marked with subscript l and r respectively.The world is empty
Between in a point A (X, Y, Z), the first image that left camera photographs is Cl, the second image that right camera photographs is Cr, point A
Imaging point on the first image is al(ul, vl), imaging points of the point B on the second image is ar(ur, vr)。alAnd arIt is the world
Same object-point A picture in space, it is referred to as " conjugate point ".The two conjugate imaging points are aware of, make them respectively with each taking the photograph
As the photocentre O of headlAnd OrLine, i.e. projection line alOlAnd arOr, their intersection point be in world space object-point A (X,
Y, Z).Here it is the general principle of stereoscopic vision.
Based on the general principle of above stereoscopic vision, further illustrate how to know using dual camera with reference to Fig. 3
The true and false of other banknote.
After the image of banknote to be identified is shot using the camera of left and right two, if the optical axis of two cameras in left and right
Not parallel, the image that the camera of left and right two photographs to the camera of left and right two at grade, it is necessary to not carry out parameter
Correction, so that the image that the camera of left and right two photographs is at grade.I.e. as shown in figure 3, ClAnd CrIn same plane
On.The focal length and its inner parameter of the video camera of left and right two are equal, and the imaging plane of camera is vertical with its optical axis, and two are taken the photograph
As the x-axis coincidence of head, y-axis is parallel to each other, therefore left camera is translated into a segment distance b along its x-axis direction and (is referred to as baseline
Baseline) overlapped afterwards with right camera.
By the spatial point A and photocentre O of the camera of left and right twol、OrThe polar plane (Epipolar plane) of determination respectively with a left side
Right imaging plane Cl、CrIntersection pl、prTo be conjugated polar curve pair, their reference axis u with respective imaging plane respectivelyl、urIt is parallel
It is and conllinear.In this preferably structure type, the geometrical relationship of the two camera configurations in left and right is the simplest, and polar curve has had
Good property, to find subpoint as of the object-point A on the imaging plane of left and rightlAnd arBetween matching relationship provide very
Convenient condition.The first image and the second image photographed in two cameras is in the case of approximately the same plane, i.e. vl=
vr.It can be obtained by triangle geometrical relationshipThenEnter
And drawProcessor 106 can calculate Target Identification Point on banknote to described first image according to the formula
With the vertical range of plane where second image.
It is as shown in figure 4, any in money identifier 400 according to an embodiment of the invention, including such as above-mentioned technical scheme
Banknote tester 100 described in, therefore, the money identifier 400 have and the banknote tester any one of above-mentioned technical proposal
100 identical technique effects, will not be repeated here.
As shown in figure 5, intelligent terminal 500 according to an embodiment of the invention, including in above-mentioned technical proposal it is any
Banknote tester 100 described in, therefore, the intelligent terminal 500 have and the currency examination dress any one of above-mentioned technical proposal
100 identical technique effects are put, will not be repeated here.
Double rear cameras are provided with due to being provided with intelligent terminal 500 on dual camera, such as mobile phone, pass through intelligence
The true and false of banknote is identified the dual camera set in terminal 500, so as to making full use of the resource of dual camera.
Fig. 6 shows the block diagram of banknote tester according to another embodiment of the invention.
As shown in fig. 6, banknote tester 600 according to another embodiment of the invention, including：The He of first camera 602
Second camera 604, first camera 602 and the second camera 604 are arranged on the same of the banknote tester 600
Side, first camera 602 is identical with the focal length of the described second shooting, and first camera 602 is to be identified for shooting
Banknote the first image, the second camera 604 is used to shoot the second image of the banknote, described first image and institute
State the second image at grade, described first image and second image are used to calculate the target identification on the banknote
Point to plane where described first image and second image vertical range, with according to the vertical range to the banknote
The true and false be identified.
In addition, banknote tester 600 also includes：Communication module 606, for described first image and second image to be sent out
Intelligent terminal is given, so that the intelligent terminal calculates Target Identification Point on the banknote to described first image and described the
The vertical range of plane where two images, and the true and false of the banknote is identified according to the vertical range.
In the technical scheme, meeting printed with fine figure line on banknote, because picture and text have certain ink deep on genuine notes ticket
Shallow change, picture and text are concavo-convex changes, for example, the collar of personage and button are all textured on genuine notes ticket, user's finger is touched
Touch and rough sensation is had when on picture and text, and picture and text are flat on counterfeit money, without lines.Based on this, can distinguish
The image of banknote is shot by dual camera, Target Identification Point in banknote is calculated to shooting according to image image-forming principle
Banknote image where plane vertical range, so that more accurately authenticity of banknotes be identified according to the vertical range.
For example, selecting multiple Target Identification Points in the button region of personage on banknote, each Target Identification Point is calculated to banknote image
The vertical range of place plane, when the vertical range of this multiple Target Identification Point is equal, illustrate the figure in the button region
Text is smooth, and the situation of concavo-convex change is not presented, just identifies that the banknote is counterfeit money yet.Further, since taken the photograph by two
As head shooting banknote image, then processor 106 performs the processing step of the above and identifies that counterfeit money can complete currency examination, avoids making
With the excessive currency examination equipment of expensive, volume, so as to meet the currency examination demand of users.In addition, clapped in dual camera
Take the photograph after the image of banknote to be identified, the first image photographed and the second image are sent to intelligent terminal, for intelligence
The image of terminal-pair first and the second image are handled to identify the true and false of banknote.
In the above-mentioned technical solutions, it is preferable that the communication module 606 is：Bluetooth module, NFC module or Wi-Fi moulds
Block.
It is as shown in fig. 7, any in money identifier 700 according to an embodiment of the invention, including such as above-mentioned technical scheme
Banknote tester 600 described in, therefore, the money identifier 700 have and the banknote tester any one of above-mentioned technical proposal
600 identical technique effects, will not be repeated here.
Fig. 8 shows the schematic flow sheet of banknote detection method according to an embodiment of the invention.
As shown in figure 8, banknote detection method according to an embodiment of the invention, including：
Step 802, the first image of banknote to be identified is shot by the first camera, paper money is shot by second camera
Second image of ticket, wherein, the first camera and the second shooting are arranged on the same side and focal length is identical, the first image and the second figure
As at grade, the first image and the second image are for calculating the Target Identification Point on banknote to the first image and the second figure
As the vertical range of place plane, so that the true and false of banknote to be identified according to vertical range.
In the technical scheme, meeting printed with fine figure line on banknote, because picture and text have certain ink deep on genuine notes ticket
Shallow change, picture and text are concavo-convex changes, for example, the collar of personage and button are all textured on genuine notes ticket, user's finger is touched
Touch and rough sensation is had when on picture and text, and picture and text are flat on counterfeit money, without lines.Based on this, can distinguish
The image of banknote is shot by dual camera, Target Identification Point in banknote is calculated to shooting according to image image-forming principle
Banknote image where plane vertical range, so that more accurately authenticity of banknotes be identified according to the vertical range.
For example, selecting multiple Target Identification Points in the button region of personage on banknote, each Target Identification Point is calculated to banknote image
The vertical range of place plane, when the vertical range of this multiple Target Identification Point is equal, illustrate the figure in the button region
Text is smooth, and the situation of concavo-convex change is not presented, just identifies that the banknote is counterfeit money yet.Further, since taken the photograph by two
As head shooting banknote image, then processing step more than computing device identifies that counterfeit money can complete currency examination, avoids using
The currency examination equipment expensive, volume is excessive, so as to meet the currency examination demand of users.
In the above-mentioned technical solutions, it is preferable that banknote detection method is used for intelligent terminal, and banknote detection method also includes：Obtain first
The imaging point and Target Identification Point of the focal length of camera and second camera, Target Identification Point on the first image are in the second image
On imaging point between horizontal range and the photocentre of the first camera and the distance between the photocentre of second camera；According to
The distance between photocentre of focal length, the photocentre of horizontal range and the first camera and second camera, calculate vertical range.
In any of the above-described technical scheme, it is preferable that vertical range is calculated by below equation,
Wherein, Z represents vertical range, and f represents focal length, and b represents the photocentre of the first camera and the photocentre of second camera
The distance between, e represents horizontal range.
In the technical scheme, the Target Identification Point that can be calculated exactly by above formula on banknote images to double
The vertical range of plane where the image of head shooting, so as to ensure that the reliability of identification authenticity of banknotes.
In any of the above-described technical scheme, it is preferable that the optical axis of the first camera it is parallel with the optical axis of second camera or
There is angle, in the case where the optical axis of the first camera and the optical axis of second camera have angle, in addition to：To the first camera
Parameter correction is carried out with second camera, to obtain the first image and the second image at grade.
In the technical scheme, when the optical axis of the first camera and the parallel optical axis of second camera, the first camera
The image that the image and second camera photographed photographs is just at grade, it is not necessary to which the two cameras are photographed
Image be corrected.When the optical axis of the first camera and the optical axis of second camera are not parallel, that is, when having certain angle,
The image that the image and second camera that one camera photographs photograph not at grade, by the two cameras
Parameter correction is carried out, to cause image that the two cameras photograph at grade, so as to more easily calculate
The vertical range of plane where the image that Target Identification Point on banknote is shot to dual camera.
In any of the above-described technical scheme, it is preferable that banknote detection method is used for money identifier, and banknote detection method also includes：By first
Image and the second image are sent to intelligent terminal, so that intelligent terminal calculates Target Identification Point on banknote to the first image and the
The vertical range of plane where two images, and the true and false of banknote is identified according to vertical range.
In the technical scheme, after the image that dual camera shoots banknote to be identified, will can photograph the
One image and the second image are sent to intelligent terminal, so that intelligent terminal is handled to identify the first image and the second image
The true and false of banknote.Technical scheme is described in detail above in association with accompanying drawing, passes through technical scheme, Ke Yibao
The accuracy rate of results paper money, while meet the currency examination demand of users.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (13)
- A kind of 1. banknote tester, it is characterised in that including：First camera and second camera, first camera and the second camera are arranged on the banknote tester The same side, first camera is identical with the focal length of the described second shooting, and first camera is to be identified for shooting First image of banknote, the second camera are used to shooting the second image of the banknote, described first image and described the At grade, described first image and second image arrive two images for the Target Identification Point calculated on the banknote The vertical range of plane where described first image and second image, with according to the vertical range to the true of the banknote Puppet is identified.
- 2. banknote tester according to claim 1, it is characterised in that also include：Processor, for obtaining the focal length of first camera and the second camera, the Target Identification Point described Horizontal range between the imaging point of imaging point and the Target Identification Point on second image on first image and The distance between the photocentre of first camera and the photocentre of the second camera, according to the focal length, it is described it is horizontal away from From and first camera the distance between the photocentre of photocentre and the second camera, calculate the vertical range.
- 3. banknote tester according to claim 2, it is characterised in that the processor calculates institute especially by below equation State vertical range,<mrow> <mi>Z</mi> <mo>=</mo> <mfrac> <mrow> <mi>f</mi> <mo>&times;</mo> <mi>b</mi> </mrow> <mi>e</mi> </mfrac> <mo>,</mo> </mrow>Wherein, Z represents the vertical range, and f represents the focal length, and b represents the photocentre and described second of first camera The distance between photocentre of camera, e represent the horizontal range.
- 4. the banknote tester according to Claims 2 or 3, it is characterised in that the optical axis of first camera and described The optical axis of two cameras is parallel or has angle, has angle in the optical axis of first camera and the optical axis of the second camera In the case of, the processor is additionally operable to,Parameter correction is carried out to first camera and the second camera, to obtain described first at grade Image and second image.
- 5. banknote tester according to claim 1, it is characterised in that also include：Communication module, for described first image and second image to be sent into intelligent terminal, for the intelligent terminal The vertical range of plane where calculating the Target Identification Point to described first image and second image on the banknote, and root The true and false of the banknote is identified according to the vertical range.
- 6. banknote tester according to claim 5, it is characterised in thatThe communication module is：Bluetooth module, NFC module or Wi-Fi module.
- A kind of 7. money identifier, it is characterised in that including：Banknote tester as any one of claim 1 to 6.
- A kind of 8. intelligent terminal, it is characterised in that including：Banknote tester as described in Claims 1-4.
- A kind of 9. banknote detection method, it is characterised in that including：The first image of banknote to be identified is shot by the first camera, the second of the banknote is shot by second camera Image, wherein, first camera is arranged on the same side with the described second shooting and focal length is identical, described first image and institute State the second image at grade, described first image and second image are used to calculate the target identification on the banknote Point to plane where described first image and second image vertical range, with according to the vertical range to the banknote The true and false be identified.
- 10. banknote detection method according to claim 9, it is characterised in that the banknote detection method is used for intelligent terminal, described to test Paper money method also includes：The focal length of first camera and the second camera, the Target Identification Point are obtained in described first image Horizontal range and first shooting between the imaging point of imaging point and the Target Identification Point on second image The distance between the photocentre of head and the photocentre of the second camera；According to the photocentre of the photocentre of the focal length, the horizontal range and first camera and the second camera it Between distance, calculate the vertical range.
- 11. banknote detection method according to claim 10, it is characterised in thatThe vertical range is calculated by below equation,<mrow> <mi>Z</mi> <mo>=</mo> <mfrac> <mrow> <mi>f</mi> <mo>&times;</mo> <mi>b</mi> </mrow> <mi>e</mi> </mfrac> <mo>,</mo> </mrow>Wherein, Z represents the vertical range, and f represents the focal length, and b represents the photocentre and described second of first camera The distance between photocentre of camera, e represent the horizontal range.
- 12. the banknote detection method according to claim 10 or 11, it is characterised in that the optical axis of first camera and described The optical axis of second camera is parallel or has angle, has folder in the optical axis of first camera and the optical axis of the second camera In the case of angle, in addition to：Parameter correction is carried out to first camera and the second camera, to obtain described first at grade Image and second image.
- 13. banknote detection method according to claim 9, it is characterised in that the banknote detection method is used for money identifier, the currency examination Method also includes：Described first image and second image are sent to intelligent terminal, so that the intelligent terminal is calculated on the banknote Target Identification Point to plane where described first image and second image vertical range, and according to the vertical range The true and false of the banknote is identified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711270908.4A CN107895425A (en) | 2017-12-05 | 2017-12-05 | Banknote tester, money identifier, intelligent terminal and banknote detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711270908.4A CN107895425A (en) | 2017-12-05 | 2017-12-05 | Banknote tester, money identifier, intelligent terminal and banknote detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107895425A true CN107895425A (en) | 2018-04-10 |
Family
ID=61807152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711270908.4A Pending CN107895425A (en) | 2017-12-05 | 2017-12-05 | Banknote tester, money identifier, intelligent terminal and banknote detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107895425A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7912320B1 (en) * | 2007-01-16 | 2011-03-22 | Paul Minor | Method and apparatus for photographic measurement |
| CN103776370A (en) * | 2014-01-06 | 2014-05-07 | 湖南丰汇银佳科技有限公司 | Face characteristic detection device and method |
| CN203632747U (en) * | 2013-12-20 | 2014-06-04 | 济南新丰泽科技开发有限公司 | Multispectral stereo CIS scan module and corresponding bill scan imaging system |
| CN103913149A (en) * | 2014-03-19 | 2014-07-09 | 华南理工大学 | Binocular range finding system based on STM 32 single chip microcomputer and range finding method thereof |
| CN105091849A (en) * | 2014-05-05 | 2015-11-25 | 南京理工大学 | Optical axis nonlinear binocular range finding method |
| CN106643518A (en) * | 2016-11-09 | 2017-05-10 | 乐视控股（北京）有限公司 | Methods and apparatuses for measuring distance and size by using binocular image pickup device |
| CN206584446U (en) * | 2016-08-22 | 2017-10-24 | 北京新岸线软件科技有限公司 | Differentiate the equipment of authenticity of banknotes based on gravure printing pattern detection |
-
2017
- 2017-12-05 CN CN201711270908.4A patent/CN107895425A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7912320B1 (en) * | 2007-01-16 | 2011-03-22 | Paul Minor | Method and apparatus for photographic measurement |
| CN203632747U (en) * | 2013-12-20 | 2014-06-04 | 济南新丰泽科技开发有限公司 | Multispectral stereo CIS scan module and corresponding bill scan imaging system |
| CN103776370A (en) * | 2014-01-06 | 2014-05-07 | 湖南丰汇银佳科技有限公司 | Face characteristic detection device and method |
| CN103913149A (en) * | 2014-03-19 | 2014-07-09 | 华南理工大学 | Binocular range finding system based on STM 32 single chip microcomputer and range finding method thereof |
| CN105091849A (en) * | 2014-05-05 | 2015-11-25 | 南京理工大学 | Optical axis nonlinear binocular range finding method |
| CN206584446U (en) * | 2016-08-22 | 2017-10-24 | 北京新岸线软件科技有限公司 | Differentiate the equipment of authenticity of banknotes based on gravure printing pattern detection |
| CN106643518A (en) * | 2016-11-09 | 2017-05-10 | 乐视控股（北京）有限公司 | Methods and apparatuses for measuring distance and size by using binocular image pickup device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106920279B (en) | Three-dimensional map construction method and device | |
| JP6844038B2 (en) | Biological detection methods and devices, electronic devices and storage media | |
| CN103136744B (en) | For the apparatus and method for the three-dimensional position for calculating characteristic point | |
| CN108627092A (en) | A kind of measurement method, system, storage medium and the mobile terminal of package volume | |
| CN109064397A (en) | A kind of image split-joint method and system based on camera shooting earphone | |
| CN111680588A (en) | Human face gate living body detection method based on visible light and infrared light | |
| CN107273846A (en) | A kind of human somatotype parameter determination method and device | |
| CN106462956A (en) | Local adaptive histogram equalization | |
| WO2013146269A1 (en) | Image capturing device, image processing method, and program | |
| CN107483774A (en) | Filming apparatus and vehicle | |
| TW201709718A (en) | Method and apparatus for displaying a light field based image on a user's device, and corresponding computer program product | |
| CN104599317B (en) | A kind of mobile terminal and method for realizing 3D scanning modeling functions | |
| JP5035467B2 (en) | Three-dimensional authentication method, three-dimensional authentication device, and three-dimensional authentication program | |
| CN109155070A (en) | Use the method and computer program product of flat mirror calibration stereo imaging system | |
| CN102737406A (en) | Three-dimensional modeling apparatus and method | |
| CN102324134A (en) | Valuable document identification method and device | |
| TW201220253A (en) | Image calculation method and apparatus | |
| CN106228530B (en) | A kind of stereography method, device and stereo equipment | |
| WO2019150807A1 (en) | Authentication device | |
| KR20150133262A (en) | Image processing program, image processing method and information terminal | |
| CN109215066A (en) | Image processing apparatus and range unit | |
| CN104200477B (en) | The method that plane catadioptric camera intrinsic parameter is solved based on space parallel circle | |
| CN107784295B (en) | The camera camera system stretched based on human body distance | |
| CN104205825B (en) | Image processing apparatus and method and camera head | |
| CN107864372A (en) | Solid picture-taking method, apparatus and terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180410 |
|
| RJ01 | Rejection of invention patent application after publication |