CN108961533B - Paper Currency Identification and device - Google Patents
Paper Currency Identification and device Download PDFInfo
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- CN108961533B CN108961533B CN201810563447.8A CN201810563447A CN108961533B CN 108961533 B CN108961533 B CN 108961533B CN 201810563447 A CN201810563447 A CN 201810563447A CN 108961533 B CN108961533 B CN 108961533B
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/20—Testing patterns thereon
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Abstract
The embodiment of the invention discloses a kind of Paper Currency Identification and devices, based on containing the financial self-service equipment for putting paper money module, temporary storage module and paper money case, wherein, the described method includes: during destination media passes through first medium channel, the first object image of the destination media is acquired by preset first light source, the first medium channel setting is put between paper money module and the temporary storage module described；During the destination media passes through second medium channel, the second target image of the destination media is acquired by preset second light source, the second medium channel is arranged between the temporary storage module and the paper money case, is identified according to the collected first object image and the second target image to the destination media.Using the present invention, it can be improved because of image resolution ratio caused by hardware limitation, improve paper money recognition precision.
Description
Technical field
The present invention relates to financial self-service equipment technical field more particularly to a kind of Paper Currency Identifications and device.
Background technique
CIS (Contact Image Sensor, contact-type image sensor) is used for ATM (Automatic Teller
Machine, ATM) module for recognizing paper money in, the analog picture signal of bank note can be got, thus according to acquisition
To image bank note identified and judgeed.
In existing CIS imaging sensor, due to hardware limitation (transmission bandwidth, A/D chip working frequency etc.), pass through
The resolution ratio of the collected multispectral image signal of CIS imaging sensor is limited, and the printed resolution of bank note is often
It is higher.Which results in the image in order to acquire higher resolution, it is higher that all parts of module for recognizing paper money require use
The component of parameter, increases hardware cost；And under low resolution, the Partial Feature of bank note shows unintelligible, will affect paper
The precision of coin identification.
Under normal conditions, in existing ATM machine, bank note when putting paper money mouth to temporary storage module from needing to utilize paper money recognition mould
Block identifies the true and false of bank note, needs to carry out using paper money recognition to if appropriate for circulation when from temporary storage module to paper money case
Judgement.And when bank note is transmitted in the transmission channel in ATM, it needs special in difference of two different links to bank note
Sign is identified that one is the true and false for identifying bank note, and one is identification bank note if appropriate for process, in the two links, is needed
It to be acquired respectively by image of the CIS sensor to bank note.That is, needing multipass CIS in existing ATM
Imaging sensor is acquired and identifies to the image of bank note, and due to hardware limitation result in image resolution ratio it is not high,
Paper money recognition precision is low.
Summary of the invention
Based on this, to solve to need multipass CIS imaging sensor in the financial self-service equipments such as ATM in traditional technology
Come during just acquiring banknote image and being identified because image resolution ratio caused by hardware limitation is insufficient, paper money recognition essence
Low technical problem is spent, spy proposes a kind of Paper Currency Identification.
A kind of Paper Currency Identification is wrapped based on the financial self-service equipment for putting paper money module, temporary storage module and paper money case is contained
It includes:
During destination media passes through first medium channel, the destination media is acquired by preset first light source
First object image, first medium channel setting puts between paper money module and the temporary storage module described；
During the destination media passes through second medium channel, the target is acquired by preset second light source
Second target image of medium, the second medium channel are arranged between the temporary storage module and the paper money case；
The destination media is identified according to the collected first object image and the second target image.
Optionally, described in one of the embodiments, that the of the destination media is acquired by preset first light source
One target image, further includes:
The first object image of the destination media is acquired by the sub-light source of the different-waveband of preset first quantity.
Optionally, described in one of the embodiments, that the of the destination media is acquired by preset second light source
Two target images, further includes:
The first object image of the destination media is acquired by the sub-light source of the different-waveband of preset second quantity.
Optionally, described according to the collected first object image and the second target in one of the embodiments,
Image identifies the destination media, further includes:
Fisrt feature identification is carried out to the destination media according to the first object image, to judge the destination media
The true and false.
Optionally, described according to the collected first object image and the second target in one of the embodiments,
Image identifies the destination media, further includes:
The destination media second feature is identified according to second target image, whether to judge the destination media
Meet preset circulation condition.
Optionally, described according to the collected first object image and the second target in one of the embodiments,
Image identifies the destination media, further includes:
According to the first crown word number information of destination media described in the first object image recognition；
The second crown word number information of the destination media is identified according to second target image；
The target prefix of the destination media is determined according to the first crown word number information and the second crown word number information
Number information.
Optionally, described according to the first crown word number information and second crown word number in one of the embodiments,
Information determines the target crown word number information of the destination media, further includes:
Determine corresponding first image resolution ratio of first object image；
Determine corresponding second image resolution ratio of the second target image；
Judge whether the first image resolution ratio is greater than or equal to second image resolution ratio, if so, will be described
First crown word number information is as the target crown word number information, otherwise, using the second crown word number information as target crown word number
Information.
Optionally, described according to the first crown word number information and second crown word number in one of the embodiments,
Information determines the target crown word number information of the destination media, further includes:
For each character of the crown word number information, the first crown word number information and second hat are obtained respectively
The first character corresponding with the character and the second character in font size information；According to the first image resolution of the first object image
Rate, the second image resolution ratio of second target image in first character and the second character determine image resolution ratio compared with
Character corresponding to high target image is as target character；
According to the target character of the determination, the target crown word number information of the destination media is determined.
Optionally, the first object image includes and preset first quantity in one of the embodiments,
The corresponding first object subgraph of each of sub-light source of different-waveband sub-light source；Second target image includes
The second target subgraph corresponding with each sub-light source in the sub-light source of the different-waveband of preset second quantity；
The target that the destination media is determined according to the first crown word number information and the second crown word number information
The step of crown word number information, further includes:
For each character of crown word number information, obtain respectively by each first object subgraph, each second
Character to be selected corresponding with the character in the crown word number information of target subgraph identification；
The target crown word number information of the destination media is determined according to the character to be selected.
Optionally, the target that the destination media is determined according to the character to be selected in one of the embodiments,
The step of crown word number information, further includes:
Image resolution ratio corresponding with each character to be selected is obtained, is waited for according to each described character to be selected and with this
Word selection accords with corresponding image resolution ratio, determines the target crown word number information of the destination media.
In addition, to solve to need multipass CIS imaging sensor in the financial self-service equipments such as ATM in traditional technology
Because of the deficiency of image resolution ratio caused by hardware limitation, paper money recognition precision during just acquiring banknote image and being identified
A kind of low technical problem, it is also proposed that paper money identifier.
A kind of paper money identifier, based on containing the financial self-service equipment for putting paper money module, temporary storage module and paper money case；
Described device includes:
First object image collection module is used for during destination media passes through first medium channel, by default
First light source acquire the first object image of the destination media, the first medium channel setting it is described put paper money module with
Between the temporary storage module；
Second target image obtains module, for passing through during the destination media passes through second medium channel
Preset second light source acquires the second target image of the destination media, and the second medium channel is arranged in the temporary mould
Between block and the paper money case,
Media recognition module is used for according to the collected first object image and the second target image to the target
Medium is identified.
Optionally, the first object image collection module is also used to by preset in one of the embodiments,
The sub-light source of the different-waveband of one quantity acquires the first object image of the destination media；
Second target image obtains module and is also used to adopt by the sub-light source of the different-waveband of preset second quantity
Collect the first object image of the destination media.
Optionally, the media recognition module is also used to according to the first object image in one of the embodiments,
Fisrt feature identification is carried out to the destination media, to judge the true and false of the destination media；
And/or
The media recognition module is also used to identify the destination media second feature according to second target image,
To judge whether the destination media meets preset circulation condition.
Optionally, in one of the embodiments,
The media recognition module is also used to the first prefix of the destination media according to the first object image recognition
Number information；The second crown word number information of the destination media is identified according to second target image；Determine first object image
Corresponding first image resolution ratio；Determine corresponding second image resolution ratio of the second target image；It is differentiated in the first image
In the case that rate is greater than or equal to second image resolution ratio, using the first crown word number information as the target crown word number
Information, in the case where the first image resolution ratio is less than second image resolution ratio, by the second crown word number information
As target crown word number information, or, obtaining the first crown word number letter respectively for each character of the crown word number information
The first character corresponding with the character and the second character in breath and the second crown word number information；It is differentiated according to the first image
Rate, second image resolution ratio determine the higher target image institute of image resolution ratio in first character and the second character
Corresponding character is as target character；According to the target character of the determination, the target crown word number letter of the destination media is determined
Breath.
Implement the embodiment of the present invention, will have the following beneficial effects:
After above-mentioned Paper Currency Identification and device, in the financial self-service equipments such as ATM, it is situated between in targets such as bank note
During matter is by putting paper money mouth to temporary storage module and bank note is by being required to pass through during temporary storage module to paper money case
Identification of the image of imaging sensor acquisition bank note to carry out corresponding purpose is respectively adopted and the mistake during the two
The spectrum of the corresponding light source of the corresponding purpose of journey and different-waveband acquires the image of bank note, for example, from paper money mouth is put to temporary
Image is acquired using the light source of more wave band during storing module, during from temporary storage module to paper money case, is used
The light source of less wave band acquires image, thus can be in the case where not changing the hardware parameter of imaging sensor, In
Image is acquired using maximum precision in each stage, to improve the resolution ratio of Image Acquisition, to improve according to the image
Carry out the accuracy of identification of paper money recognition.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Wherein:
Fig. 1 is a kind of flow diagram of Paper Currency Identification in one embodiment；
Fig. 2 is a kind of structural schematic diagram of paper money identifier in one embodiment；
Fig. 3 is the structural schematic diagram that the computer equipment of aforementioned Paper Currency Identification is run in one embodiment.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
To solve in the financial self-service equipments such as ATM to need multipass CIS imaging sensor in traditional technology just to adopt
Because the deficiency of image resolution ratio caused by hardware limitation, paper money recognition precision are low during collecting banknote image and being identified
Technical problem, in the present embodiment, spy propose a kind of Paper Currency Identification, and the realization of this method can be dependent on computer journey
Sequence, the computer program can run on the computer system based on von Neumann system, which can be base
In the application program of Image Acquisition and image recognition.The computer system can be the self-service finance for running above-mentioned computer program
Equipment.
It should be noted that in the present embodiment, when operation of above-mentioned Paper Currency Identification, is based on a financial self-service equipment,
The financial self-service equipment contains the financial self-service equipment for putting paper money module (putting paper money mouth), temporary storage module and paper money case.Wherein, with
After the media such as bank note are put into paper money mouth by family, bank note can be along channel transfer to temporary storage module, also, is putting paper money mouth and temporary mould
Also equipment is by identification module between block, for identifying to bank note, for example, being carried out by features such as crown word number, safeties true
Puppet identification；Further, the bank note of temporary storage module can be entered via corresponding channel different paper money casees (small paper money case, useless paper money case,
Classification paper money case etc.) in stored, also, can be identified from the bank note that temporary storage module comes out by identification module, for example, knowing
Other value of money, degree etc..That is, the bank note transmitted in financial self-service equipment can be twice via identification module
(it can be the same identification module, be also possible to different identification modules, can specifically be designed according to specific channel to set
It is fixed), and the process identified is the image of bank note to be acquired by the imaging sensor being arranged in identification module, then to image
It is handled and is identified to realize the identification to bank note.
It should be noted that in the present embodiment, the acquisition for the image of the destination medias such as bank note is by CIS image
Sensor is realized.CIS (Contact Image Sensor, contact-type image sensor) is used for ATM (Automatic
Teller Machine, ATM) etc. in the module for recognizing paper money of financial self-service equipments, the simulation drawing of bank note can be got
As signal, to be identified and judgeed according to the image got to bank note.
Specifically, as shown in Figure 1, above-mentioned Paper Currency Identification includes the following steps S102-S106:
Step S102: during destination media passes through first medium channel, institute is acquired by preset first light source
State the first object image of destination media, the first medium channel setting it is described put paper money module and the temporary storage module it
Between.
Step S104: it during the destination media passes through second medium channel, is adopted by preset second light source
Collect the second target image of the destination media, the second medium channel setting the temporary storage module and the paper money case it
Between.
In the present embodiment, first medium channel and second medium channel are contained in financial self-service equipment, wherein the
One medium channel is arranged in the medium channel put between paper money module and temporary storage module, the setting of second medium channel temporary storage module with
Medium channel between paper money case.Paper money module (putting paper money mouth) is put by what the destination medias such as bank note were put into financial self-service equipment in user
Later, the medium can by first medium channel transfer to temporary storage module, then by second medium channel transfer to paper money case into
The storage of row medium.
In the present embodiment, destination media refers to the bank note for being put into paper money module (for example, RMB, Hongkong dollar etc. are more
The bank note of kind currency type).After user will be put into paper money module as the bank note of destination media, financial self-service equipment can be automatic
Destination media is transmitted, and completes preset correlation function (for example, sorting paper money, truth identification etc.).
In the present embodiment, acquire destination media target image when, be point above-mentioned two stage or process respectively into
Capable, it in a single stage, is completed in first medium channel, second stage is completed in second medium is sent to
's.
Specifically, needing to acquire corresponding with first medium channel first when destination media passes through first medium channel
Target image, the paper money recognition for the first stage；When destination media passes through second medium channel, need to acquire and second Jie
Corresponding second target image in matter channel, the paper money recognition for second stage.
In a specific embodiment, it acquires first object image and the imaging sensor of the second target image is
CIS imaging sensor, and acquire light source used by first object image and the second target image and be different, or
It says, the corresponding spectrum of used light source or wave band are different.
Specifically, in an alternative embodiment, acquiring the destination media above by preset first light source
The step of first object image, further includes: the target is acquired by the sub-light source of the different-waveband of preset first quantity and is situated between
The first object image of matter.
In another alternative embodiment, the second mesh of the destination media is acquired above by preset second light source
The step of logo image, further includes: acquire the of the destination media by the sub-light source of the different-waveband of preset second quantity
One target image.
That is, be acquired in the first stage with second stage using different light sources, and different light sources refers to
It is the wave band of light used is different, also, the type for the light for including is also different.
It should be noted that above-mentioned second quantity uses the first quantity not less than the first quantity namely first stage
The light of same wave band is got on bank note, to acquire first object image (for example, the light for using 6 wave bands), second-order
The light that section uses the different wave bands of the second quantity is got on bank note, to acquire the second target image (for example, using 2
The light of a wave band), wherein first stage corresponding first quantity is greater than corresponding second quantity of second stage.
In another alternative embodiment, the second quantity can also be greater than or equal to the first quantity, specifically with the first rank
Each stage corresponding function is arranged different related during section identifies bank note to second stage, can be according to function
Demand is modified or adaptability setting.
In a specific embodiment, in the first phase, it is got on bank note using the light of 6 wave bands, including red
Color visible light, blue visible light, green visible, infrared transmission light (unilateral polishing, the other side receive, 850nm wave band), it is infrared
Reflected light (940nm wave band), ultraviolet light, the image resolution ratio of each wave band are 100*100DPI or 300DPI (line direction) *
100DPI, also, can have when 300DPI (line direction) * 100DPI fpga chip sample or interpolation be 100*100DPI.Also
It is to say, in the first phase, the requirement for the hardware device of CIS imaging sensor is 600 (line direction) * 100DPI.
And in second stage, i.e., from temporary storage module to paper money case, bank note is got to using the light of wave band more less than the first stage
On, it such as can only include green visible, be still 600 (rows in the hardware parameter of CIS imaging sensor in this case
Direction) in the case where * 100DPI, the resolution ratio of green visible is 600 (line direction) * 300DPI.Also, it is adopted in second stage
It, can in the case that imaging sensor used by CIS imaging sensor and first stage is not the same imaging sensor
To further decrease the requirement to hardware parameter, for example, the resolution ratio of green visible is 300DPI*300DPI.
Step S106: the destination media is carried out according to the collected first object image and the second target image
Identification.
After first object image and the second target image are got, destination media can be identified.It needs
Illustrate, it is two steps that step S106, which is divided to, and one is to carry out the first stage to destination media according to first object image
Paper money recognition, the other is carrying out the paper money recognition of second stage to destination media according to the second target image.
Specifically, in a specific embodiment, it is above-mentioned according to the collected first object image and the second mesh
The step of logo image identifies the destination media, further includes: according to the first object image to the destination media
Fisrt feature identification is carried out, to judge the true and false of the destination media；According to second target image to the destination media
Second feature identification, to judge whether the destination media meets preset circulation condition.
Under the premise of ensure that the high-resolution of image, the paper money recognition portion to the stage is deleted in each stage
The spectrum of the wave band needed, the further resolution ratio for improving Image Acquisition at this stage, thus by the hat to paper money recognition
Font size identification, anti-a surname's coin identification, splicing paper money identification scheduling algorithm accuracy of identification have carried out further raising.That is, from
Paper money mouth is put to temporary storage module and during from temporary storage module to the money-checking twice of paper money case, using different resolution, ensure that calculation
The accuracy of identification of method, and the cost without increasing module.
Further, during above-mentioned money-checking twice, crown word number (ultraviolet, infrared, visible light) identification can be mutual
Match.
It should be noted that in the present embodiment, during being identified for the bank note as destination media,
During identifying in one stage and second stage to bank note, the corresponding crown word number information of identification bank note is required to make
Feature identification, also, in final result, it needs to store crown word number information corresponding with destination media.Because of the first stage
It is resolution ratio and light source that is different, using with the effect and purpose identified in second stage for bank note
Be it is different, it is therefore, also different for the recognition effect of crown word number.And in order to improve the prefix of the bank note finally stored
The accuracy of number information can determine final mesh according to the crown word number information identified in two stages in the present embodiment
Mark crown word number information.
Specifically, in an alternative embodiment, above-mentioned steps S106: described according to the collected first object
Image and the second target image identify the destination media specifically:
According to the first crown word number information of destination media described in the first object image recognition；
The second crown word number information of the destination media is identified according to second target image；
The target prefix of the destination media is determined according to the first crown word number information and the second crown word number information
Number information.
In specific embodiment, during determining target crown word number information corresponding with destination media, it is necessary first to obtain
The first crown word number information according to accessed by first object image recognition is taken, and the first crown word number information is stored
(for example, caching)；And it is further desired that obtaining the second crown word number information accessed according to the identification of the second target image, and will
The second crown word number information is stored (such as caching), to make when determining the final target crown word number information of destination media
With.
For example, when obtaining the image of destination media using infrared transmission light, bank note is just in paper money recognition in the first stage
Rear 6 characters of inferior horn are sightless to the left, but preceding 4 characters are visible.And it is identified in the visible light of second stage
Scene under, crown word number information is visible.It therefore, can be by the first stage in order to improve the precision that crown word number identifies
And be compared to each other and matched between the obtained crown word number information of second stage, to obtain the higher crown word number letter of accuracy
Breath.
For example, in an alternative embodiment, in the complete situation of crown word number information, will acquire crown word number letter
Image resolution ratio corresponding to corresponding image is ceased as the standard for determining crown word number information.Specifically, above-mentioned according to described
One crown word number information and the second crown word number information determine the target crown word number information of the destination media, further includes: determine
Corresponding first image resolution ratio of first object image；Determine corresponding second image resolution ratio of the second target image；Judge institute
State whether the first image resolution ratio is greater than or equal to second image resolution ratio, if so, by the first crown word number information
As the target crown word number information, otherwise, using the second crown word number information as target crown word number information.
For example, in the case where acquiring image using high-resolution in the first stage, the standard of corresponding crown word number information
Exactness in contrast also can be higher, therefore, using the first crown word number information as target crown word number information.It is used in second stage
Higher resolution is come in the case where acquiring image, the accuracy of corresponding crown word number information can be higher than other, therefore, using the
Two crown word number information are as target crown word number information.
It further, in the present embodiment, not only can be using the crown word number information in some stage as target prefix
Number information can also be combined to obtain more accurate crown word number and believe according to each character that crown word number twice identifies
Breath.
Specifically, during crown word number identifies because the difference of light section to may cause part crown word number invisible,
In the sightless situation of crown word number information that some stage is recognized, this crown word number information directlys adopt another rank
The crown word number information that section is recognized；In the case where identifying a certain position crown word number in two stages, using image resolution
The character of this crown word number in the higher crown word number information of rate, is finally combined into complete target crown word number information, thus into
The accuracy and integrality of the increase crown word number information identification of one step.
That is, above-mentioned determine that the target is situated between according to the first crown word number information and the second crown word number information
The step of target crown word number information of matter, further includes: for each character of the crown word number information, obtain described respectively
The first character corresponding with the character and the second character in one crown word number information and the second crown word number information；According to described
First image resolution ratio of one target image, the second image resolution ratio of second target image are in first character and
Determine character corresponding to the higher target image of image resolution ratio as target character in two characters；According to the mesh of the determination
Marking-up symbol, determines the target crown word number information of the destination media.
That is, for crown word number information each character (for example, 100 yuan of corresponding bank note of new edition RMB
Crown word number information contain 10 characters), need to be determined respectively.The first crown word number information for identifying in the first stage and
In the case where containing some character in the crown word number information that second stage recognizes, if the character that the two determines is one
It causes, then any one result is used, still, if in the case that the character that the two is identified is inconsistent, it is necessary to
It is determined most according to the second character determined in the first character and the second crown word number information determined in the first crown word number information
What the character used eventually is.In general, identify that the image resolution ratio of target image corresponding to the crown word number information is higher,
The confidence level and accuracy of crown word number information identification are higher, therefore, in the present embodiment, in the first character and the second character
The process for determining target character, be selected and determined according to the first image resolution ratio and the second image resolution ratio, and
And selection be the crown word number information that the higher target image of image resolution ratio is identified character.That is,
In the case that one image resolution ratio is higher than the second image resolution ratio, using the first character as target character, conversely, by the second character
As target character.
In another alternative embodiment, because obtaining for first object image is used according in first stage
The sub-light source acquired image of different-waveband, because of the quantity more than one of sub-light source, and each sub-light source can be adopted
Collect target image corresponding with the sub-light source, therefore, first object image contains more than one subgraph, i.e. first object figure
As including first object corresponding with each of the sub-light source of different-waveband of preset first quantity sub-light source
Image.Similarly, the second target image includes and each sub-light source in the sub-light source of the different-waveband of preset second quantity point
Not corresponding second target subgraph.
Therefore, in the present embodiment, in order to further improve the accuracy that crown word number information identifies, target hat is being determined
During font size information, can also according to all subgraphs that first object image and the second target image include come into
Row confirmation.
That is, the above-mentioned mesh for determining the destination media according to the first crown word number information and the second crown word number information
The step of marking crown word number information, further includes:
For each character of crown word number information, obtain respectively by each first object subgraph, each second
Character to be selected corresponding with the character in the crown word number information of target subgraph identification；The mesh is determined according to the character to be selected
Mark the target crown word number information of medium.
That is, being directed to each sub-light source, according to its collected subgraph, identify respectively corresponding with the subgraph
Crown word number information.In general, each sub-light source has corresponded to a crown word number information, and, each sub-light source is right
Its corresponding image resolution ratio is answered.When determining target crown word number information, be according to each character of crown word number information come
It determines one by one, also, for the character of each crown word number information, according to the character is corresponding passes through each subgraph
Character corresponding with the character is (to word selection in the crown word number information that (first object subgraph, the second target subgraph) is identified
Symbol) it is determined.
For example, the quantity of subgraph is 10, for it needs to be determined that crown word number information character for, what is obtained is all
Character to be selected have 9 (wherein 1 subgraph fails to recognize information corresponding with the character), and specifically contain 2 values,
One is A (sharing 7 characters to be selected is A), and one is B (sharing 2 characters to be selected is B), according to A or B all to be selected
Shared specific gravity can determine that the character is that the probability of A can be far longer than B in character, accordingly, it is determined that in target crown word number information
The character is A.
In another alternative embodiment, determining that each character to be selected is shared in determining target crown word number information
Weight (its weight of preceding method is identical) during, it is also contemplated that the corresponding image resolution of each subgraph
Rate.
Specifically, the step of above-mentioned target crown word number information that the destination media is determined according to the character to be selected, also
It include: to obtain image resolution ratio corresponding with each character to be selected, it is to be selected according to each described character to be selected and with this
The corresponding image resolution ratio of character determines the target crown word number information of the destination media.
That is, for each subgraph, image resolution ratio corresponding with the subgraph is determined, and by image resolution
It is corresponding that rate with the crown word number information that the subgraph identifies carries out binding.In some character for determining target crown word number information
During, consider the corresponding image resolution ratio of each character to be selected, and synthetic image resolution ratio and character to be selected determine
Target crown word number information.
For example, the quantity of subgraph is 10, for it needs to be determined that crown word number information character for, what is obtained is all
Character to be selected have 9, be respectively as follows:
A) A, 300dpi；
B) B, 300dpi；
C) B, 300dpi；
D) B, 100dpi；
E) A, 200dpi；
F) A, 200dpi；
G) A, 200dpi；
H) A, 300dpi；
I) A, 300dpi；
Weight corresponding with 300dpi is 3, and weight corresponding with 200dpi is 3, and weight corresponding with 100dpi is 1, because
This, weight sum corresponding with character A to be selected are as follows:
3+2+2+2+3+3=15；
Weight sum corresponding with character B to be selected are as follows:
3+3+1=7；
Since 15 > 7, so that it is determined that the character is A in target crown word number information.
It should be noted that the corresponding weight calculation mode of different images resolution ratio is in the present embodiment without limitation, only
Need to meet that image resolution ratio is higher, weight is bigger.
After each character of crown word number information determines, prefix can be formed according to determining all characters
Number information, and the crown word number information is the target crown word number information of destination media.That is, by each prefix
The determination of the character of number information further improves the accuracy of crown word number information identification.
In addition, to solve to need multipass CIS imaging sensor in the financial self-service equipments such as ATM in traditional technology
Because of the deficiency of image resolution ratio caused by hardware limitation, paper money recognition precision during just acquiring banknote image and being identified
Low technical problem, in one embodiment, as shown in Figure 2, it is also proposed that a kind of paper money identifier puts paper money based on containing
The financial self-service equipment of module, temporary storage module and paper money case, including first object image collection module 102, the second target image
Obtain module 104 and media recognition module 106, wherein
First object image collection module 102 is used for during destination media passes through first medium channel, by pre-
If first light source acquire the first object image of the destination media, the first medium channel, which is arranged, puts paper money module described
Between the temporary storage module；
Second target image obtains module 104, for leading to during the destination media passes through second medium channel
The second target image that preset second light source acquires the destination media is crossed, the second medium channel setting is described temporary
Between module and the paper money case,
Media recognition module 106 is used for according to the collected first object image and the second target image to described
Destination media is identified.
Optionally, the first object image collection module 102 is also used to by preset in one of the embodiments,
The sub-light source of the different-waveband of first quantity acquires the first object image of the destination media；
Second target image obtains the sub-light source that module 104 is also used to the different-waveband by preset second quantity
Acquire the first object image of the destination media；
Second quantity is less than first quantity.
Optionally, the media recognition module 106 is also used to according to the first object figure in one of the embodiments,
As carrying out fisrt feature identification to the destination media, to judge the true and false of the destination media；
And/or
The media recognition module 106 is also used to know the destination media second feature according to second target image
Not, to judge whether the destination media meets preset circulation condition.
Optionally, the media recognition module 106 is also used to according to the first object figure in one of the embodiments,
The first crown word number information as identifying the destination media；The second of the destination media is identified according to second target image
Crown word number information；Determine corresponding first image resolution ratio of first object image；Determine corresponding second figure of the second target image
As resolution ratio；In the case where the first image resolution ratio is greater than or equal to second image resolution ratio, by described first
Crown word number information is less than second image resolution ratio as the target crown word number information, in the first image resolution ratio
In the case of, using the second crown word number information as target crown word number information, or, for each word of the crown word number information
Symbol obtains in the first crown word number information and the second crown word number information the first character corresponding with the character and the respectively
Two characters；It is true in first character and the second character according to the first image resolution ratio, second image resolution ratio
Character corresponding to the higher target image of image resolution ratio is determined as target character；According to the target character of the determination, really
The target crown word number information of the fixed destination media.
Implement the embodiment of the present invention, will have the following beneficial effects:
After above-mentioned Paper Currency Identification and device, in the financial self-service equipments such as ATM, it is situated between in targets such as bank note
During matter is by putting paper money mouth to temporary storage module and bank note is by being required to pass through during temporary storage module to paper money case
Identification of the image of imaging sensor acquisition bank note to carry out corresponding purpose is respectively adopted and the mistake during the two
The spectrum of the corresponding light source of the corresponding purpose of journey and different-waveband acquires the image of bank note, for example, from paper money mouth is put to temporary
Image is acquired using the light source of more wave band during storing module, during from temporary storage module to paper money case, is used
The light source of less wave band acquires image, thus can be in the case where not changing the hardware parameter of imaging sensor, In
Image is acquired using maximum precision in each stage, to improve the resolution ratio of Image Acquisition, to improve according to the image
Carry out the accuracy of identification of paper money recognition.
In the above-described embodiments, can it is all or part of by software, hardware, firmware or any combination thereof come real
It is existing.When being realized using software program, can entirely or partly realize in the form of a computer program product.The computer
Program product includes one or more computer instructions.When loading on computers and executing the computer program instructions, entirely
Portion is partly generated according to process or function described in the embodiment of the present invention.The computer can be general purpose computer, specially
With computer, computer network or other programmable devices.The computer instruction can store in computer-readable storage
In medium, or from a computer readable storage medium to the transmission of another computer readable storage medium, for example, the meter
The instruction of calculation machine can pass through wired (such as coaxial cable, light from a web-site, computer, server or data center
Fine, Digital Subscriber Line (DSL)) or wireless (such as infrared, wireless, microwave etc.) mode to another web-site, computer, clothes
Business device or data center are transmitted.It is any available to can be that computer can access for the computer readable storage medium
Medium either includes the data storage devices such as one or more usable mediums integrated server, data center.It is described to use
Medium can be magnetic medium, (for example, floppy disk, hard disk, tape), optical medium (for example, DVD) or semiconductor medium (such as it is solid
State hard disk Solid State Disk (SSD)) etc..
In one embodiment, as shown in figure 3, Fig. 3 illustrate it is a kind of run above-mentioned Paper Currency Identification based on Feng Nuo
According to the terminal of the computer system of graceful system, i.e., corresponding financial self-service equipment.Specifically, may include being connected by system bus
Outer input interface 1001, processor 1002, memory 1003 and output interface 1004.Wherein, outer input interface 1001
Network interface 10012 can optionally be included at least.Memory 1003 may include external memory 10032 (such as hard disk, CD or soft
Disk etc.) and built-in storage 10034.Output interface 1004 can include at least the equipment such as display screen 10042.
In the present embodiment, the operation of this method is based on computer program, and the program file of the computer program is stored in
In the external memory 10032 of the aforementioned computer system based on von Neumann system, it is loaded into built-in storage at runtime
It in 10034, is then compiled as being transferred in processor 1002 after machine code executing, so that being based on von Neumann system
Computer system in form each virtual module in logic.And in above-mentioned Paper Currency Identification implementation procedure, input
Parameter passes through outer input interface 1001 and receives, and is transferred in memory 1003 and caches, and is then input to processor 1002
In handled, the result data of processing or be cached in memory 1003 is subsequently handled, or is passed to output and is connect
Mouth 1004 is exported.
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore equivalent changes made in accordance with the claims of the present invention, is still within the scope of the present invention.
Claims (9)
1. a kind of Paper Currency Identification, the method is based on financial self-service equipment, the financial self-service equipment include along channel according to
Paper money module, temporary storage module and paper money case are put in secondary setting, which is characterized in that the described method includes:
During destination media passes through first medium channel, the of the destination media is acquired by preset first light source
One target image, first medium channel setting are put between paper money module and the temporary storage module described, and described preset the
One light source includes the sub-light source of the different-waveband of preset first quantity；
During the destination media passes through second medium channel, the destination media is acquired by preset second light source
The second target image, the second medium channel is arranged between the temporary storage module and the paper money case, described preset the
Two light sources include the sub-light source of the different-waveband of preset second quantity, and second quantity is less than first quantity；
The destination media is identified according to the collected first object image and the second target image.
2. the method according to claim 1, wherein described according to the collected first object image and
Two target images identify the destination media, further includes:
Fisrt feature identification is carried out to the destination media according to the first object image, to judge the true of the destination media
It is pseudo-；
It is described that the destination media is identified according to the collected first object image and the second target image, also wrap
It includes:
The destination media second feature is identified according to second target image, to judge whether the destination media meets
Preset circulation condition.
3. the method according to claim 1, wherein described according to the collected first object image and
Two target images identify the destination media, further includes:
According to the first crown word number information of destination media described in the first object image recognition；
The second crown word number information of the destination media is identified according to second target image；
The target crown word number letter of the destination media is determined according to the first crown word number information and the second crown word number information
Breath.
4. according to the method described in claim 3, it is characterized in that, described according to the first crown word number information and described second
Crown word number information determines the target crown word number information of the destination media, further includes:
Determine corresponding first image resolution ratio of first object image；
Determine corresponding second image resolution ratio of the second target image；
Judge whether the first image resolution ratio is greater than or equal to second image resolution ratio, if so, by described first
Crown word number information is as the target crown word number information, otherwise, using the second crown word number information as target crown word number information.
5. according to the method described in claim 3, it is characterized in that, described according to the first crown word number information and described second
Crown word number information determines the target crown word number information of the destination media, further includes:
For each character of the crown word number information, the first crown word number information and second crown word number are obtained respectively
The first character corresponding with the character and the second character in information；According to the first image resolution ratio of the first object image,
Second image resolution ratio of second target image determines that image resolution ratio is higher in first character and the second character
Target image corresponding to character as target character；
According to the target character of the determination, the target crown word number information of the destination media is determined.
6. according to the method described in claim 3, it is characterized in that, the first object image includes and described preset first
The corresponding first object subgraph of each of sub-light source of different-waveband of quantity sub-light source；The second target figure
As including the second target corresponding with each sub-light source in the sub-light source of the different-waveband of preset second quantity
Subgraph；
The target prefix that the destination media is determined according to the first crown word number information and the second crown word number information
The step of number information, further includes:
For each character of crown word number information, obtained respectively by each first object subgraph, each second target
Character to be selected corresponding with the character in the crown word number information of subgraph identification；
The target crown word number information of the destination media is determined according to the character to be selected.
7. according to the method described in claim 6, it is characterized in that, described determine the destination media according to the character to be selected
Target crown word number information the step of, further includes:
Image resolution ratio corresponding with each character to be selected is obtained, waits for word selection according to each described character to be selected and with this
Corresponding image resolution ratio is accorded with, determines the target crown word number information of the destination media.
8. a kind of paper money identifier, which is characterized in that described device is based on financial self-service equipment, the financial self-service equipment packet
Paper money module, temporary storage module and paper money case are put containing what is set gradually along channel；
Described device includes:
First object image collection module, for passing through preset the during destination media passes through first medium channel
One light source acquires the first object image of the destination media, the first medium channel setting it is described put paper money module with it is described
Between temporary storage module, the preset first light source includes the sub-light source of the different-waveband of preset first quantity；
Second target image obtains module, is used for during the destination media passes through second medium channel, by default
Second light source acquire the second target image of the destination media, the second medium channel setting the temporary storage module with
Between the paper money case, the preset second light source includes the sub-light source of the different-waveband of preset second quantity, and described second
Quantity is less than first quantity,
Media recognition module is used for according to the collected first object image and the second target image to the destination media
It is identified.
9. a kind of self-service financial terminal, including at least one imaging sensor and paper money recognition dress as claimed in claim 8
It sets.
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| CN111311815B (en) * | 2020-03-16 | 2022-05-13 | 深圳怡化电脑股份有限公司 | Crown word number identification method, device, server and storage medium |
| CN111833511A (en) * | 2020-06-09 | 2020-10-27 | 武汉卓目科技有限公司 | Method and device for improving identification rate of prefix number based on multi-channel synthesis technology |
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| KR101620693B1 (en) * | 2014-06-30 | 2016-05-12 | 주식회사 엘지씨엔에스 | Apparatus and method for recognizing media, financial device |
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