CN107516369B - Bill images acquisition methods and bill images acquisition device, system - Google Patents

Bill images acquisition methods and bill images acquisition device, system Download PDF

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Publication number
CN107516369B
CN107516369B CN201610436960.1A CN201610436960A CN107516369B CN 107516369 B CN107516369 B CN 107516369B CN 201610436960 A CN201610436960 A CN 201610436960A CN 107516369 B CN107516369 B CN 107516369B
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China
Prior art keywords
bill
image
brightness
sweep parameter
light source
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CN107516369A (en
Inventor
于转龙
朱先刚
李洪明
刘茂林
姜晓军
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Shandong New Beiyang Information Technology Co Ltd
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Shandong New Beiyang Information Technology Co Ltd
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Priority to CN201610436960.1A priority Critical patent/CN107516369B/en
Priority to PCT/CN2017/088294 priority patent/WO2017215613A1/en
Publication of CN107516369A publication Critical patent/CN107516369A/en
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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
    • G07D7/202—Testing patterns thereon using pattern matching
    • G07D7/205—Matching spectral properties
    • 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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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Image Input (AREA)

Abstract

The present invention provides a kind of bill images acquisition methods and bill images acquisition device, system, which comprises is scanned to bill, obtains the first image of the bill；Judge whether the brightness of the first image meets the requirements；If not satisfied, then according to the brightness adjustment of the first image sweep parameter relevant to brightness of image, so as to be met the requirements using the image that the sweep parameter adjusted scans；The bill is rescaned using the sweep parameter adjusted, obtains the second image of the bill.The bill images acquisition methods and bill images acquisition device, system provided through the invention are able to solve the bill images acquisition device of the relevant technologies when obtaining the image of different types of bill, there are problems that the bill images got cannot be met the requirements.

Description

Bill images acquisition methods and bill images acquisition device, system
Technical field
The present invention relates to bill images acquiring technology fields, and in particular to a kind of bill images acquisition methods and bill images Acquisition device, system.
Background technique
Financial document is the bill for being signed and issued by financial institution or being undertaken by financial institution payment obligation, the existing finance in China Bill includes bill, check, cashier's cheque etc..In order to guarantee circulation safety, financial document (hereinafter referred to as bill) usually all includes more Kind anti-counterfeiting characteristic before financial institution cashes bill, needs the anti-counterfeiting characteristic and note number, capital and small letter according to bill to be cashed The true and false of the ticket contents such as the amount of money, seal identification bill.
Currently, financial institution mostly uses greatly the image of bill images acquisition device acquisition bill, and according to the image of bill Identify the true and false of bill.The relevant technologies disclose a kind of bill identification system, which includes that bill images obtain Device and control device, bill images acquisition device obtain the optical imagery of bill to be identified, and by the optics of bill to be identified Image is sent to control device, and control device is analyzed and processed bill images, extracts the anti-counterfeiting characteristic of bill and identifies ticket According to content, and according to the true and false of the anti-counterfeiting characteristic and ticket contents of bill identification bill.
Since bill to be identified may include multiple types, and the thickness of different types of bill and color are different, because This, for different types of bill, the light transmittance and/or reflecting rate of bill are had differences, when the bill using the relevant technologies When obtaining the optical imagery of different types of bill as acquisition device, the brightness of the image of different types of bill will be different, When the brightness of bill images is too high or too low, the requirement that bill images are not able to satisfy identification or false distinguishing may result in, that is, The anti-counterfeiting characteristic or identification ticket contents of bill can not be extracted according to bill images, or can not identify bill according to bill images The true and false.
For the relevant technologies bill images acquisition device when obtaining the image of different types of bill, exist and get Bill images the problem of cannot meeting the requirements, not yet propose effective workaround at present.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of bill images acquisition methods and bill images acquisition device, System, the bill images acquisition device to solve the relevant technologies exist and get when obtaining the image of different types of bill Bill images the problem of cannot meeting the requirements.
In a first aspect, the embodiment of the invention provides a kind of bill images acquisition methods, which comprises to bill into Row scanning, obtains the first image of the bill；Judge whether the brightness of the first image meets the requirements；If not satisfied, then According to the brightness adjustment of the first image sweep parameter relevant to brightness of image, so as to be joined using the scanning adjusted The image that number scanning obtains is met the requirements；The bill is rescaned using the sweep parameter adjusted, obtains the ticket According to the second image.
With reference to first aspect, the first possible embodiment the embodiment of the invention provides first aspect, wherein to ticket According to being scanned, the first image of the bill is obtained, comprising: the bill is scanned according to the scan pattern of setting, Obtain the first image of the bill；Wherein, the scan pattern of the setting includes that control setting light source luminescent irradiates the ticket According to and/or control scan the setting regions of the bill, the setting light source includes that reflected image white light source, reflected image are red Outer radiant, reflected image ultraviolet source, transmission image white light source, transmission image infrared light light source and transmission image are ultraviolet Any one in radiant, the setting regions of the bill includes the whole region of the bill or the part of the bill Region.
With reference to first aspect, the embodiment of the invention provides second of first aspect possible embodiments, wherein according to The brightness adjustment of the first image sweep parameter relevant to brightness of image, comprising: by the brightness of the first image and in advance If normal brightness compares and analyzes, sweep parameter adjusted value is obtained, described and figure is adjusted according to the sweep parameter adjusted value The relevant sweep parameter of image brightness.
Second of possible embodiment with reference to first aspect, the embodiment of the invention provides first aspect, the third may Embodiment, wherein the sweep parameter relevant to brightness of image is adjusted according to the sweep parameter adjusted value, comprising: The fluorescent lifetime of the corresponding light source of the first image or the value of photoelectric current are adjusted according to the sweep parameter adjusted value.
Above-mentioned embodiment with reference to first aspect, the embodiment of the invention provides the 4th kind of possible implementations of first aspect Mode, wherein rescan the bill using the sweep parameter adjusted, obtain the second image of the bill, wrap It includes: controlling the bill and retract to setting position, the bill is scanned using the sweep parameter adjusted, is obtained Second image of the bill.
Second aspect, the embodiment of the invention provides a kind of bill images acquisition device, described device includes: the first acquisition Module obtains the first image of the bill for being scanned to bill；Image judgment module, for judging described first Whether the brightness of image meets the requirements；Parameter adjustment module, if determining the first image for described image judgment module Brightness is discontented to be required, then according to the brightness adjustment of the first image sweep parameter relevant to brightness of image, so that using adjusting The image that the sweep parameter after whole scans is met the requirements；Second obtains module, for described being swept using adjusted It retouches parameter and rescans the bill, obtain the second image of the bill.
In conjunction with second aspect, the first possible embodiment the embodiment of the invention provides second aspect, wherein described First acquisition module includes: scanning element, is scanned for the scan pattern according to setting to the bill, obtains the ticket According to the first image；Wherein, the scanning element includes setting subelement, and the setting subelement is for controlling setting light source hair Light irradiates the bill and/or control scans the setting regions of the bill, and the setting light source includes reflected image white light light Source, reflected image infrared light light source, reflected image ultraviolet source, transmission image white light source, transmission image infrared light light source With any one in transmission image ultraviolet source, the setting regions of the bill include the bill whole region or The partial region of the bill.
In conjunction with second aspect, the embodiment of the invention provides second of second aspect possible embodiments, wherein described Parameter adjustment module includes: brightness contrast unit, for comparing the brightness of the first image and preset standard brightness Analysis, obtains sweep parameter adjusted value, is joined according to the sweep parameter adjusted value adjustment scanning relevant to brightness of image Number.
In conjunction with second of second aspect possible embodiment, the embodiment of the invention provides second aspect, the third may Embodiment, wherein the brightness contrast unit include adjustment subelement, for according to the sweep parameter adjusted value adjust The fluorescent lifetime of the corresponding light source of the first image or the value of photoelectric current.
In conjunction with the above-mentioned embodiment of second aspect, the embodiment of the invention provides the 4th kind of possible implementations of second aspect Mode, wherein the second acquisition module includes: rollback scanning element, retracts for controlling the bill to setting position, makes The bill is scanned with the sweep parameter adjusted, obtains the second image of the bill.
The third aspect, the embodiment of the invention provides a kind of bill images to obtain system, and the system comprises bill images Acquisition device and host, the bill images acquisition device and the host carry out data interaction；The bill images obtain dress It sets and bill is scanned, obtain the first image of the bill, the first image is uploaded to the host；The host Judge whether the brightness of the first image meets the requirements；If the host determines that the brightness of the first image is unsatisfactory for wanting It asks, then according to the brightness calculation sweep parameter adjusted value of the first image, the sweep parameter adjusted value is sent to described Bill images acquisition device；The bill images acquisition device adjusts related to brightness of image according to the sweep parameter adjusted value Sweep parameter, so as to be met the requirements using the image that the sweep parameter adjusted scans；The bill images obtain It takes device to rescan the bill using the sweep parameter adjusted, obtains the second image of the bill, it will be described Second image is uploaded to the host.
In the bill images acquisition methods and bill images acquisition device, system of the embodiment of the present invention, when getting bill The first image after, judge whether the brightness of the first image meets the requirements, if the brightness of the first image is unsatisfactory for requiring, according to The brightness adjustment of one image sweep parameter relevant to brightness of image, and bill is rescaned, obtain the second image of bill.It is logical The bill images acquisition methods and bill images acquisition device, system for crossing the present embodiment, lead when since bill type changes It, can be relevant to brightness of image according to the brightness adjustment of the first image when the brightness of the first image obtained being caused to be unsatisfactory for requiring Sweep parameter obtains after rescaning bill since the image for using sweep parameter adjusted to scan is met the requirements Second image of the bill taken is met the requirements, so that the bill images acquisition device for effectively solving the relevant technologies is obtaining inhomogeneity When the image of the bill of type, there are problems that the bill images got cannot be met the requirements.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate Appended attached drawing, is described in detail below.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the module composition schematic diagram of bill images acquisition device according to an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of bill images acquisition device according to an embodiment of the present invention；
Fig. 3 is the module composition schematic diagram that bill images according to an embodiment of the present invention obtain system；
Fig. 4 is the flow diagram of bill images acquisition methods according to an embodiment of the present invention；
Fig. 5 is that the functional module of bill images acquisition device according to an embodiment of the present invention divides schematic diagram；
Fig. 6 is the workflow schematic diagram that bill images according to an embodiment of the present invention obtain system.
Appended drawing reference:
Entrance 21, outlet 22, arrow 23, first sensor 161, second sensor 162, imaging sensor 141, first is defeated Send roll assembly 1331, the second feed roller assembly 1332, third feed roller assembly 1333, the 4th feed roller assembly 1334, conveying electricity Machine 132.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention Middle attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only It is a part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is real The component for applying example can be arranged and be designed with a variety of different configurations.Therefore, of the invention to what is provided in the accompanying drawings below The detailed description of embodiment is not intended to limit the range of claimed invention, but is merely representative of selected reality of the invention Apply example.Based on the embodiment of the present invention, those skilled in the art institute obtained without making creative work There are other embodiments, shall fall within the protection scope of the present invention.
In view of the bill images acquisition device of the relevant technologies is when obtaining the image of different types of bill, there is acquisition To bill images cannot meet the requirements the problem of, the present invention provides a kind of bill images acquisition methods and bill images to obtain Device, system, are specifically described below with reference to embodiment.
Fig. 1 is the module composition schematic diagram of bill images acquisition device according to an embodiment of the present invention, as shown in Figure 1, ticket It include control unit 11, communication unit 12, supply unit 13, image acquisition units 14, storage unit 15 according to image acquiring device 1 With sensor unit 16.
Control unit 11 executes work for controlling other modules, executes for example, control unit 11 controls communication unit 12 Data interaction between bill images acquisition device 1 and host, wherein host is connect with bill images acquisition device 1, and control is single Member 11 controls image acquisition units 14 and 13 cooperating of supply unit to scan bill, wherein scanning bill includes that conveying is single Member 13 drives bill to move in the transfer passage of bill images acquisition device 1, image when bill every one row distance of movement Acquisition unit 14 acquires the image of a bill.
Communication unit 12 is used to execute the data interaction between bill images acquisition device 1 and host, wherein host and ticket It is connected according to image acquiring device 1, for example, communication unit 12 receives the control command of the scanning bill sent by host, communication unit The bill images that scanning obtains are uploaded to host etc. by member 12.
Supply unit 13 is for driving bill to move in the transfer passage of bill images acquisition device 1, supply unit 13 Including motor driver 131, feeder motor 132 and feed roller assembly 133.Motor driver 131 is used for according to control unit 11 Output control signal output feeder motor 132 transmission shaft rotate required for electric current, the transmission shaft of feeder motor 132 with it is defeated Roll assembly 133 is sent to be sequentially connected, when the rotation of the transmission shaft of feeder motor 132, feed roller assembly 133 is rotated with it, to drive Dynamic bill moves in transfer passage.
Image acquisition units 14 are for acquiring bill images, wherein image acquisition units 14 include 141 He of imaging sensor Converter 142.
Imaging sensor 141 is used to acquire the optical imagery of bill, and the optical signal that will acquire is converted into analog electrical signal, That is analog picture signal.Imaging sensor 141 can be charge-coupled image sensor (Charge-coupled Device, letter Claim CCD) or contact-type image sensor (Contact Image Sensor, abbreviation CIS), in the present embodiment, image sensing Device 141 is CIS.Imaging sensor 141 includes photophore 1411 and photosensitive array 1412, and photophore 1411 is radiated at for emitting Light on bill, photophore 1411 are the linear light extended along main scanning direction (i.e. the direction vertical with bill conveying direction) Source, which, which can be, is alternatively arranged the linear light source formed by multiple point light sources, is also possible to point light source and converts through light-strip Obtained linear light source；Photosensitive array 1412 is arranged by multiple photoreceptors, and multiple photoreceptors are used to receive by bill reflection Light, and it is converted into analog picture signal, to realize the reflected image of acquisition bill, multiple photoreceptors are along main scanning side To arrangement, wherein each photoreceptor is corresponding with a pixel in some row pixels of bill images.
Further, photophore 1411 includes multiple sub- photophores, such as white-light emitting device 1411a, infra red light emitter 1411b and UV-light luminous device 1411c, wherein white-light emitting device 1411a is infrared for emitting the white light being radiated on bill Light photophore 1411b is radiated at bill for emitting for emitting the infrared light being radiated on bill, UV-light luminous device 1411c On ultraviolet light, when white-light emitting device 1411a emits white light, photosensitive array 1412 is received by white light that bill reflects to acquire The white light reflectance image of bill, when infra red light emitter 1411b emits infrared light, the reception of photosensitive array 1412 is reflected by bill Infrared light to acquire the infrared light reflection image of bill, when UV-light luminous device 1411c emitting ultraviolet light, photosensitive array 1412 receive the ultraviolet light reflected image that bill is acquired by ultraviolet light that bill reflects.Due to emitting respectively when each sub- photophore When corresponding light irradiation bill, photosensitive array 1412 be can receive by the light of bill reflection to acquire the corresponding anti-of bill Image is penetrated, therefore, white-light emitting device 1411a is referred to as reflected image white light source, and infra red light emitter 1411b can also be with Referred to as reflected image infrared light light source, UV-light luminous device 1411c are referred to as reflected image ultraviolet source.
Further, every sub- photophore of photophore 1411 passes through D/A converter (not shown) respectively and control is single Member 11 is electrically connected, when the control signal intensity of the output of control unit 11 to the D/A converter being connect with the sub- photophore of setting, The input voltage of the sub- photophore changes therewith, to make the photoelectric current of the sub- photophore change, that is, the son is made to shine The light emission luminance of device changes.
Converter 142, the analog picture signal for exporting to imaging sensor 141 are AD converted, and generate number Image data.
Storage unit 15 in the control program and control program operation process of storing bill image acquiring device 1 for generating Data and variable, for example, storage unit 15 for store the first preset time, the second preset time, third preset time, with And the digital image data etc. for storing the output of converter 142, wherein the first preset time is some row for acquiring bill The fluorescent lifetime of white-light emitting device 1411a when the white light reflectance image of pixel；Second preset time is a bit for acquiring bill The fluorescent lifetime of infra red light emitter 1411b when the infrared light reflection image of row pixel；Third preset time is acquisition bill Some row pixels ultraviolet light reflected image when UV-light luminous device 1411c fluorescent lifetime.
Sensor unit 16 includes first sensor for detecting position of the bill in transfer passage, sensor unit 16 161 and second sensor 162.First sensor 161 and second sensor 162 can transmit for optoelectronic reflection sensor or photoelectricity Sensor, each sensor include photophore and receiver (not marking in figure), and receiver receives the light of photophore transmitting simultaneously It is translated into electric signal, when sensor is in covered state, receiver exports first detection signal, when sensor is in When being uncovered state, receiver output the second detection signal.It is logical that first sensor 161 and second sensor 162 are located at conveying Different location in road, the state change of each sensor are used to indicate the detection position that bill reached or left the sensor, Show that bill reaches the detection position of the sensor when sensor is by being uncovered state change to covered state, works as sensing Device is changed to the detection position for showing that bill leaves the sensor when being uncovered state by covered state.
Further, bill images acquisition device 1 can also include transmission image light source 17, transmission image light source 17 and figure As sensor 141 is oppositely arranged, for emitting the transmitted light being radiated on bill, with the photosensitive array with imaging sensor 141 The transmission image of acquisition bill is realized in 1412 cooperations, wherein the photosensitive array 1412 of imaging sensor 141 receives transmission image light Source 17 emit through bill light and be converted into analog picture signal.
Further, transmission image light source 17 include multiple sub- transmission image light sources, as transmission image white light source 17a, Transmission image infrared light light source 17b and transmission image ultraviolet source 17c, wherein transmission image white light source 17a is for emitting The white light being radiated on bill, transmission image infrared light light source 17b is for emitting the infrared light being radiated on bill, transmission image Ultraviolet source 17c is for emitting the ultraviolet light being radiated on bill.When transmission image white light source 17a emits white light, sense Optical arrays 1412 receive the white light through bill to acquire the white light transmittant image of bill, as transmission image infrared light light source 17b When emitting infrared light, photosensitive array 1412 receives the infrared light through bill to acquire the infrared transmission image of bill, when saturating When penetrating image ultraviolet source 17c emitting ultraviolet light, photosensitive array 1412 receives the ultraviolet light through bill to acquire bill Ultraviolet light transmission image.
Further, every sub- transmission image light source of transmission image light source 17 passes through D/A converter respectively and (does not show in figure It is electrically connected out) with control unit 11, when the output of control unit 11 to the D/A converter being connect with the sub- transmission image light source of setting Control signal intensity when, the input voltage of the sub- transmission image light source changes therewith, to make the sub- transmission image light source Photoelectric current changes, that is, the light emission luminance of the sub- transmission image light source is made to change.
Further, storage unit 15 is also used to store the 4th preset time, the 5th preset time and the 6th preset time, Wherein, the 4th preset time is transmission image white light source 17a when acquiring the white light transmittant image of some row pixels of bill Fluorescent lifetime；5th preset time is that transmission image is infrared when acquiring the infrared transmission image of some row pixels of bill The fluorescent lifetime of radiant 17b；6th preset time is transmission plot when acquiring the ultraviolet light image of some row pixels of bill As the fluorescent lifetime of ultraviolet source 17c.
Fig. 2 is the structural schematic diagram of bill images acquisition device according to an embodiment of the present invention, as shown in Fig. 2, entrance 21 Positioned at one end of transfer passage, direction shown in arrow 23 is bill direction of advance, and contrary direction is with shown in arrow 23 Bill direction of retreat, first sensor 161, second sensor 162 and imaging sensor 141 are successively arranged along bill direction of advance In transfer passage.Feed roller assembly 133 includes the first conveying roller being successively arranged in transfer passage along bill direction of advance Component 1331, the second feed roller assembly 1332, third feed roller assembly 1333 and the 4th feed roller assembly 1334, wherein each group Feed roller assembly includes the drive roll and driven voller being oppositely arranged, and each drive roll and feeder motor 132 are sequentially connected, feeder motor 132 transmission shaft rotation when, the drive roll of each group feed roller assembly rotates with it, drive roll rotate when drive it is on the other side from Dynamic roller rotation, so that bill be driven to move in transfer passage.First sensor 161 is located at the entrance 21 of transfer passage, uses In detecting whether that bill is fed through the entrance 21 of transfer passage, second sensor 162 is located at image along bill direction of advance The upstream of sensor 141, and the distance between its scan position for detecting position and imaging sensor 141 is first distance L1, Wherein, the scan position of imaging sensor 141 is its position of photosensitive array 1412 in transfer passage.Further, bill Image acquiring device further includes outlet 22, and outlet 22 is located at the other end of transfer passage, and bill can be through going out after scanning bill Mouth 22 is sent transfer passage.
Fig. 3 is the module composition schematic diagram that bill images according to an embodiment of the present invention obtain system, as shown in figure 3, ticket It include host 2 and bill images acquisition device 1 shown in FIG. 1 according to image-taking system, host 2 can be computer, mobile phone, plate Electronic equipments, bill images acquisition device 1 and the hosts 2 such as computer (Pad, portable android device) can pass through The modes such as cable network, wireless network, bluetooth or data line are connected and are communicated, for example, bill images acquisition device 1 and host 2 It is connected by USB (Universal Serial Bus, universal serial bus) data line, and is counted by usb communication mode According to transmission.
Bill images are uploaded to host 2 for obtaining bill images by bill images acquisition device 1.Host 2 be used for Bill images acquisition device 1 sends the control instruction of scanning bill, and receives the bill of the transmission of bill images acquisition device 1 Picture is analyzed and processed bill images, extracts the anti-counterfeiting characteristic of bill and identifies ticket contents, and according to the anti-fake of bill Feature and ticket contents identify the true and false of bill.
In a kind of preferred embodiment, after bill images acquisition device 1 obtains bill images, control unit 11 is to bill As being analyzed and processed, the brightness of bill images is obtained, and judge whether bill images meet according to the brightness of bill images and want It asks, wherein meeting the requirements can be the requirement for meeting false distinguishing or meet the requirement achieved, want when determining that bill images are not able to satisfy When asking, according to the brightness of the bill images of acquisition and the adjusted value of the preset standard brightness calculation sweep parameter of bill images, And sweep parameter being adjusted, and control supply unit 13 and image acquisition units 14 rescan bill, control unit 11 will weigh The bill images obtained after new scanning bill upload to host 2, wherein sweep parameter includes the fluorescent lifetime for setting light source, sets Determine the photoelectric current etc. of light source.
In another preferred embodiment, after bill images acquisition device 1 obtains bill images, bill images are uploaded into master Machine 2, host 2 are analyzed and processed the bill images received, obtain the brightness of bill images, and according to the bright of bill images Degree judges whether bill images meet the requirements, when determining that bill images cannot be met the requirements, according to the bill images of acquisition The adjusted value of the preset standard brightness calculation sweep parameter of brightness and bill images, and the sweep parameter adjusted value is sent to Bill images acquisition device 1, and the control command for rescaning bill is sent to bill images acquisition device 1；Image obtains The control unit 11 of device 1 determines that communication unit 22 receives sweep parameter adjusted value and rescans the control command of bill Afterwards, sweep parameter is adjusted, and controls supply unit 13 and image acquisition units 14 rescan bill, and ticket will be rescaned Host 2 is uploaded to according to the bill images of rear acquisition.
Fig. 4 is the flow diagram of bill images acquisition methods according to an embodiment of the present invention, the executing subject of this method It can be bill images acquisition device shown in fig. 1 or fig. 2, as shown in figure 4, the method comprising the steps of S401~step S404.
Step S401, is scanned bill, obtains the first image of bill.
When detecting that bill is admitted to transfer passage, the scanning starting position of bill is delivered to sweeping for imaging sensor Position is retouched, the first image of bill is obtained by image sensor scan bill.Wherein, the scan position of imaging sensor is Position of the photosensitive array of imaging sensor in transfer passage, the scanning starting position of bill are that the forward position apart from bill is Position where some row pixels of two distance L2, the forward position of bill are that it is located at front in a forward direction when bill is mobile A side.
By taking the bill images acquisition device in Fig. 1 as an example, control unit 11 detects the state of first sensor 161, works as inspection When measuring first sensor 161 by being uncovered state change to covered state, determine that the forward position of bill is inserted into conveying The entrance 21 in channel, control unit 11 control supply unit 13 and bill are driven to move along direction of advance；Alternatively, working as communication unit 12 When receiving the control command of scanning bill of host transmission, control unit 11 controls supply unit 13 and drives bill along advance side To movement.
In bill moving process, control unit 11 detects the state of second sensor 162, when detecting second sensor 162 by being uncovered state change to covered state when, determine that the forward position of bill reaches the check bit of second sensor 162 It sets.Bill is driven to move along direction of advance at this point, control unit 11 continues control supply unit 13, and start recording bill is mobile Distance, when the bill moving distance recorded be equal to third distance L3 when, determine bill scanning starting position reach image The scan position of sensor 141, wherein third distance L3 is equal to the sum of first distance L1 and second distance L2, first distance L1 For the distance between the scan position of the detection position and imaging sensor 141 of second sensor 162, second distance L2 is bill Scanning starting position and the distance between the forward position of bill.When the scanning starting position of bill reaches imaging sensor 141 When scan position, control unit 11 starts to control image acquisition units 14 and 13 cooperating of supply unit to scan bill, from And obtain the first image of bill.
Scanning bill includes that supply unit 13 drives bill to move in the transfer passage of bill images acquisition device 1, ticket Image acquisition units 14 acquire the image of some row pixels when row some according to every movement.Specifically, the every movement of bill is a little gone When, the control setting light source luminescent preset time of control unit 11, and control the acquisition of photosensitive array 1,412 one of imaging sensor 141 The analog picture signal of point row pixel, and the analog picture signal that control converter 142 exports imaging sensor 141 Data image signal is converted to, to obtain the digital image data of some row pixels of bill.
In this step, whether completion is scanned by the mobile Distance Judgment bill of bill, specifically, when the scanning of bill rises When beginning position reaches the scan position of imaging sensor 141, control unit 11 controls image acquisition units 14 and supply unit 13 While scanning bill, the mobile distance of start recording bill, when the bill moving distance recorded is equal to the 4th distance L4, Determine to complete bill scanning, that is, getting the first image of bill, wherein the 4th distance L4 is the scanning start bit of bill The distance between scanning final position of bill is set, the scanning final position of bill is that the rear edge apart from bill is the 5th distance Position where some row pixels of L5, it is located at subsequent one in a forward direction when the rear edge of bill is moved for bill Side.
In view of bill scanning means can obtain the reflectogram of bill according to any one light source scanning of inside setting As the perhaps transmission image of bill and whole region or the partial region of bill can also be scanned, obtains the whole of bill Image or parts of images, therefore in this step, preferably bill is scanned according to the scan pattern of setting, obtains bill First image, wherein the scan pattern of setting includes that control setting light source luminescent irradiation bill and/or control scan setting for bill Determine region, setting light source includes reflected image white light source, reflected image infrared light light source, reflected image ultraviolet source, thoroughly Penetrate any one in image white light source, transmission image infrared light light source and transmission image ultraviolet source, the setting of bill Region includes the whole region of bill or the partial region of bill.Wherein, reflected image white light source can be as shown in Figure 1 White-light emitting device 1411a, reflected image infrared light light source can be infra red light emitter 1411b as shown in Figure 1, reflectogram As ultraviolet source can be UV-light luminous device 1411c as shown in Figure 1.
By taking the bill images acquisition device in Fig. 1 as an example, during scanning bill, when some row of the every movement of bill, The control setting light source luminescent preset time of control unit 11, wherein setting light source can be any one of imaging sensor 141 Sub- photophore, such as white-light emitting device, infra red light emitter or UV-light luminous device, or transmission image light source 17 is appointed One sub- transmission image light source of meaning, such as transmission image white light source, transmission image infrared light light source or transmission image ultraviolet light Light source.When setting light source as any one sub- photophore of imaging sensor 141, the acquisition of imaging sensor 141 and corresponding son The reflected image of the corresponding bill of photophore, when setting light source as any one sub- transmission image light source of transmission image light source 17 When, the transmission image of the acquisition of imaging sensor 141 bill corresponding with accordingly sub- transmission image light source.
When only controlling any one setting light source luminescent irradiation bill in scanning process, scanning obtains first figure Picture.For example, the first image scanned is that the white light of bill is anti-when control white-light emitting device 1411a shines irradiation bill Image is penetrated, when control transmission image white light source 17a shines irradiation bill, the first image scanned is the white light of bill Transmission image.Preferably, can also shine irradiation bill in turn in scanning process according to the setting a variety of setting light sources of sequential control, Scanning obtains several the first images, and specifically, when some row of the every movement of bill, control unit 11 successively controls multiple setting light sources Shine preset time in turn, and a little goes in the acquisition of the photosensitive array 1412 of the imaged sensor 141 of every kind of light source luminescent time control The analog picture signal of pixel, and the analog picture signal that control converter 142 exports imaging sensor 141 are converted For data image signal.When supply unit 13 drives the whole region of bill or preset partial region to pass through imaging sensor When 141 scan position, imaging sensor 141 is the acquisition for completing several the first images, wherein every first image corresponding one Kind light source, for example, collected first image is the white light reflectance image of bill when white-light emitting device 1411a irradiates bill, When transmission image white light source 17a irradiates bill, collected first image is the white light transmittant image of bill.
In the present embodiment, the setting regions of bill can be the whole region of bill, or the partial region of bill, Correspondingly, the first image can be the image of the whole region of bill, or the image of the partial region of bill.For example, In a kind of preferred embodiment, the value of second distance L2 and the 5th distance L5 are 0, that is, the scanning starting position of bill is ticket According to forward position, bill scanning final position be bill rear edge, in this case, when complete bill scanning when, get First image is the image of the whole region of bill；For another example, in another preferred embodiment, second distance L2 and/or the 5th The value of distance L5 is not 0, and in this case, when completing bill scanning, the first image got is the partial region of bill Image.In view of the brightness of the first image may be unsatisfactory for requiring, efficiency, preferably the first image are obtained to improve bill images For the image of the partial region of bill.
Step S402, judges whether the brightness of the first image meets the requirements.
In this step, it is provided with predetermined luminance requirement, judges whether the brightness of the first image meets the predetermined luminance requirement. Specifically, predetermined luminance requires to include the difference between brightness of image and the preset standard brightness of bill images in a certain range Interior, which can be the 20% of the preset standard brightness of bill images, for example, calculating first after obtaining the first image The brightness of image, when the difference of the preset standard brightness of the brightness and bill images of first image and the pre- bidding of bill images When the ratio of quasi- brightness is less than 20%, determine that the brightness of the first image is met the requirements, otherwise, it is determined that the brightness of the first image is discontented Foot requires.
Predetermined luminance require further include brightness of image in a certain range, which can be preset numerical value model It encloses, for example, the brightness of the first image is calculated, when the brightness of the first image is in preset numberical range after obtaining the first image When, determine that the brightness of the first image is met the requirements, otherwise, it is determined that the brightness of the first image is unsatisfactory for requiring.
In a kind of preferred embodiment, the mean value of the brightness of all pixels point in the first image is calculated, and by all pixels point Brightness brightness value of the mean value as the first image, in another preferred embodiment, calculate all pixels point in the first image Brightness variance, and using the variance of the brightness of all pixels point as the brightness value of the first image.The pre- bidding of bill images Quasi- brightness can such as be calculated mean value or be calculated variance using operation method identical with the brightness value of the first image is calculated, right Bill images as template are calculated.
In step S401, when the setting regions of bill is the partial region of bill, the scanning of bill images acquisition device The subregional image of the identical portions of bill as template, according to operation method meter identical with the brightness value of the first image is calculated It can be regarded as the brightness value of the subregional image of identical portions of the bill for template, and using the brightness value as the pre- bidding of bill images Quasi- brightness.In step S401, when the setting regions of bill is the whole region of bill, the scanning of bill images acquisition device is made For the image of the whole region of the bill of template, conduct is calculated according to operation method identical with the brightness value of the first image is calculated The brightness value of the image of the whole region of the bill of template, and using the brightness value as the preset standard brightness of bill images.
When getting several first images after being scanned to bill, successively judge every first image brightness whether It meets the requirements.It specifically includes: for any one the first image, calculating its brightness value, and judge whether the brightness value meets Above-mentioned predetermined luminance requirement.For example, setting light source and corresponding ticket of the bill images acquisition device according to every first image Preset standard brightness corresponding with every first image is previously stored with according to region.Bill images acquisition device calculates every first The brightness of image, judges whether the difference of the brightness of every first image preset standard brightness corresponding with first image is in In preset difference range or the difference of the brightness of every first image preset standard brightness corresponding with first image with Whether the ratio of the preset standard brightness is less than preset threshold or whether the brightness of every first image is in preset numerical value In range, when any one the first image is unsatisfactory for above-mentioned predetermined luminance requirement, determine that the brightness of first image is discontented Foot requires.
Step S403, it is bright according to the brightness adjustment of the first image and image if the brightness of the first image is unsatisfactory for requiring Relevant sweep parameter is spent, so as to meet the requirements using the image that sweep parameter adjusted scans.
Sweep parameter relevant to brightness of image is adjusted using following methods in this step: by the brightness of the first image and in advance If normal brightness compares and analyzes, sweep parameter adjusted value is obtained, according to the adjustment of sweep parameter adjusted value and brightness of image phase The sweep parameter of pass, wherein sweep parameter relevant to brightness of image can be the fluorescent lifetime of the corresponding light source of the first image Or the value of photoelectric current accordingly adjusts relevant to brightness of image sweep parameter according to sweep parameter adjusted value, it can be with are as follows: The fluorescent lifetime of the corresponding light source of the first image or the value of photoelectric current are adjusted according to sweep parameter adjusted value.
For example, when the preset standard brightness of bill images is A, sweep parameter tune is arranged when the brightness of the first image is A1 Whole value is k1=A/A1, and the fluorescent lifetime of the corresponding setting light source of the first image is adjusted to k1 times of current value, alternatively, by the The value of the photoelectric current of the corresponding setting light source of one image is adjusted to k1 times of current value.
For another example, when the brightness of the first image is A2, and the preset standard brightness of bill images is A3, according to luminance difference A2-A3 searches the corresponding sweep parameter adjusted value k2 of the difference in the pre-stored difference table of comparisons, and the first image is corresponding The fluorescent lifetime of setting light source be adjusted to k2 times of current value, alternatively, by the photoelectric current of the corresponding setting light source of the first image Value be adjusted to k2 times of current value.
By taking the bill images acquisition device in Fig. 1 as an example, control unit 11 calculates the bright of the first image in step S402 Degree, and the preset standard brightness of pre-stored bill images is obtained, when control unit 11 determines the first figure by step S402 When the brightness of picture is unsatisfactory for requiring, by this step according to the brightness of the first image and the preset standard luminance meter of bill images Sweep parameter adjusted value is calculated, and adjusts the fluorescent lifetime or photoelectricity of the corresponding light source of the first image according to sweep parameter adjusted value The value of stream, for example, when the corresponding light source that sets of the first image is white-light emitting device 1411a, and sweep parameter adjustment is calculated When value is k1, the value of the first preset time stored in storage unit 15 is revised as k1 times of current value by control unit 11, or Person, control unit 11 adjustment output to the control signal of the white-light emitting device 1411a D/A converter connecting, by white-light emitting device The value of the photoelectric current of 1411a is adjusted to k1 times of current value.
Further, when getting several first images after being scanned to bill, predetermined luminance requirement will be unsatisfactory for The brightness preset standard brightness corresponding with first image of the first image compare and analyze, obtain sweep parameter adjustment Value, according to sweep parameter adjusted value adjust the corresponding light source of the first image for being unsatisfactory for predetermined luminance requirement fluorescent lifetime or The value of person's photoelectric current.
For example, when the brightness for the first image for being unsatisfactory for predetermined luminance requirement is A1, corresponding preset standard brightness When for A, setting sweep parameter adjusted value is k=A/A1, this is unsatisfactory for the corresponding setting of the first image of predetermined luminance requirement The fluorescent lifetime of light source is adjusted to k times of current value, alternatively, the value of the photoelectric current of the setting light source to be adjusted to the k of current value Times.
By taking the bill images acquisition device in Fig. 1 as an example, control unit 11 calculates every first image in step S402 Brightness, and the corresponding preset standard brightness of pre-stored every first image is obtained, when control unit 11 passes through step When S402 determines that a certain the first image is unsatisfactory for predetermined luminance requirement, predetermined luminance requirement is unsatisfactory for according to this by this step The first image brightness and corresponding preset standard brightness calculation sweep parameter adjusted value, and according to sweep parameter tune This is unsatisfactory for the fluorescent lifetime of the corresponding light source of the first image of predetermined luminance requirement or the value of photoelectric current for whole value adjustment, than Such as, this is unsatisfactory for the corresponding light source that sets of the first image of predetermined luminance requirement as infra red light emitter 1411b, and calculates To sweep parameter adjusted value be k1 when, the second preset time stored in storage unit 15 is revised as current value by control unit 11 K1 times, alternatively, control unit 11 adjustment output to the control signal of the infra red light emitter 1411b D/A converter connecting, The value of the photoelectric current of infra red light emitter 1411b is adjusted to k1 times of current value.
In this step, due to comparing the preset standard brightness of the brightness of the first image and bill images, according to right The fluorescent lifetime of light source more corresponding than result the first image of adjustment or the value of photoelectric current, and the preset standard brightness of bill images When meeting the requirements, therefore rescaning bill using sweep parameter adjusted, the brightness of obtained image is also met the requirements.
Step S404 rescans bill using sweep parameter adjusted, obtains the second image of bill.
In view of the specific structure of bill images acquisition device as shown in Figure 2, the detailed process of this step are as follows: control ticket According to retracting to setting position, bill is scanned using sweep parameter adjusted, obtains the second image of bill, Neng Gouli Solution, since the second image scans to obtain using sweep parameter adjusted, the corresponding light source of the second image and the first image Corresponding light source is identical.Above-mentioned setting position can be the scan position of imaging sensor 141, and control bill retracts to setting position Setting, which can be, retracts the scanning starting position of bill to the scan position of imaging sensor 141.
Specifically, after according to the brightness adjustment sweep parameter of the first image, control unit 11 controls supply unit 13 and drives Bill is moved along direction of retreat, and in bill moving process, control unit 11 detects the state of second sensor 162, when detecting Second sensor 162 is changed to by covered state when being uncovered state, determines that the forward position of bill reaches second sensor 162 Detection position, drive bill to move along direction of advance at this point, control unit 11 controls supply unit 13, and start recording bill Mobile distance determines that the scanning starting position of bill arrives when the mobile distance of the bill recorded is equal to third distance L3 Up to the scan position of imaging sensor 141, at this point, control unit 11 controls image acquisition units 14 and supply unit 13 cooperates work Make to start scanning bill, to obtain the second image of bill.
Further, when getting several first images after being scanned in step S401 to bill, if it is decided that more The brightness of a certain the first image is not able to satisfy predetermined luminance requirement in the first image, then wants according to not being able to satisfy predetermined luminance The corresponding sweep parameter of the brightness adjustment for the first image asked, and bill is rescaned using sweep parameter adjusted, to obtain Second image of evidence of getting tickets.Wherein, when the brightness of several the first images is unsatisfactory for requiring, after using adjustment respectively in this step Sweep parameter corresponding with every first image rescan bill, obtain several the second images, wherein second image With a width brightness be unsatisfactory for require the first image it is corresponding, when in several first images only have first image brightness not It meets the requirements, rescans bill using sweep parameter corresponding with first image adjusted in this step, obtain a width Second image, second image are corresponding with the first image that brightness is unsatisfactory for requirement.For example, being swept in step S401 to bill Several first images got after retouching are respectively the white light reflectance image of bill, infrared light reflection image, ultraviolet light reflectogram When the six width image such as picture, white light transmittant image, infrared transmission image, ultraviolet light transmission image, if sentenced in step S402 The brightness for determining white light reflectance image is unsatisfactory for predetermined luminance requirement, in this step, according to the brightness of white light reflectance image and white light The difference calculating sweep parameter adjusted value corresponding with white light reflectance image of the corresponding preset standard brightness of reflected image, and according to The corresponding sweep parameter of sweep parameter adjusted value adjustment white light reflectance image of calculating gets the when rescaning bill Two images, second image are the white light reflectance image of bill.
In this step, additionally it is possible to bill be sent out transfer passage by the outlet of transfer passage, and prompt user again by ticket Bill is scanned again when detecting that bill enters the entrance of transfer passage according to the entrance for being put into transfer passage, is obtained Second image.
By taking the bill images acquisition device in Fig. 1 as an example, after control unit 11 detects that bill is scanned, control conveying Unit 13 drives bill to continue to move to along direction of advance, until bill is sent out transfer passage by the outlet of transfer passage.Bill Image acquiring device issues the user with the prompt information for being placed again into bill, for example, being returned by communication unit 12 to host " will Bill is fed again into transfer passage ", when user receives the prompt information of host output, bill is placed again into transfer passage Entrance control supply unit 13 and image acquisition units when control unit 11 detects that bill is again introduced into transfer passage 14 cooperatings obtain the second image to rescan bill.
In the bill images acquisition methods of the embodiment of the present invention, after getting the first image of bill, the first figure is judged Whether the brightness of picture meets the requirements, if the brightness of the first image is unsatisfactory for requiring, according to the brightness adjustment and image of the first image The relevant sweep parameter of brightness, and bill is rescaned, obtain the second image of bill.Bill images through this embodiment obtain Method is taken, it, can be with when being changed due to bill type causes the brightness of the first image of the bill obtained to be unsatisfactory for requiring According to the brightness adjustment of the first image sweep parameter relevant to brightness of image, due to using sweep parameter adjusted to scan To image meet the requirements, therefore the brightness for rescaning the second image of the bill obtained after bill is met the requirements, to have Effect solves the bill images acquisition device of the relevant technologies when obtaining the image of different types of bill, there is the bill got The problem of image cannot be met the requirements.
Corresponding above-mentioned bill images acquisition methods, the embodiment of the invention also provides bill images acquisition device, Fig. 5 is The functional module of bill images acquisition device according to an embodiment of the present invention divides schematic diagram, as shown in figure 5, bill images obtain Device 5 includes:
First acquisition module 51 obtains the first image of bill for being scanned to bill；
Image judgment module 52, for judging whether the brightness of first image meets the requirements；
Parameter adjustment module 53, if determining that the brightness of the first image is unsatisfactory for requiring for image judgment module 52, root According to the brightness adjustment of the first image sweep parameter relevant to brightness of image, so as to scan to obtain using sweep parameter adjusted Image meet the requirements；
Second acquisition module 54 obtains above-mentioned bill for rescaning above-mentioned bill using sweep parameter adjusted The second image.
In view of bill scanning means can obtain the reflectogram of bill according to any one light source scanning of inside setting As the perhaps transmission image of bill and whole region or the partial region of bill can also be scanned, obtains the whole of bill Image or parts of images, above-mentioned first acquisition module 51 includes: scanning element, for the scan pattern according to setting to bill It is scanned, obtains the first image of bill；Wherein, scanning element includes setting subelement, and setting subelement is set for controlling Determine light source luminescent irradiation bill and/or control scanning bill setting regions, the setting light source include reflected image white light source, Reflected image infrared light light source, reflected image ultraviolet source, transmission image white light source, transmission image infrared light light source and thoroughly Any one in image ultraviolet source is penetrated, the setting regions of the bill includes the whole region of bill or the part of bill Region.
It includes: brightness contrast unit that above-mentioned parameter, which adjusts module 53, for the brightness of the first image and preset standard is bright Degree compares and analyzes, and obtains sweep parameter adjusted value, adjusts scanning relevant to brightness of image according to sweep parameter adjusted value Parameter.The sweep parameter relevant to brightness of image can be the fluorescent lifetime or photoelectric current of the corresponding light source of the first image Value, correspondingly, above-mentioned brightness contrast unit include adjustment subelement, for adjusting the first image pair according to sweep parameter adjusted value The fluorescent lifetime for the light source answered or the value of photoelectric current.
In view of the specific structure of bill images acquisition device as shown in Figure 2, above-mentioned second acquisition module 54 includes: back Scanning element is moved back, retracts for controlling bill to setting position, bill is scanned using sweep parameter adjusted, is obtained Second image of bill.
In the bill images acquisition device of the embodiment of the present invention, after getting the first image of bill, the first figure is judged Whether the brightness of picture meets the requirements, if the brightness of the first image is unsatisfactory for requiring, according to the brightness adjustment and image of the first image The relevant sweep parameter of brightness, and bill is rescaned, obtain the second image of bill.Bill images through this embodiment obtain Device is taken, it, can be with when being changed due to bill type causes the brightness of the first image of the bill obtained to be unsatisfactory for requiring According to the brightness adjustment of the first image sweep parameter relevant to brightness of image, due to using sweep parameter adjusted to scan To image meet the requirements, therefore the brightness for rescaning the second image of the bill obtained after bill is met the requirements, to have Effect solves the bill images acquisition device of the relevant technologies when obtaining the image of different types of bill, there is the bill got The problem of image cannot be met the requirements.
The embodiment of the invention also provides a kind of bill images obtain system, the system include bill images acquisition device and Host, bill images acquisition device and host carry out data interaction；The bill images acquisition device can be the ticket in Fig. 1 or 2 According to image acquiring device.
Fig. 6 is the workflow schematic diagram that bill images according to an embodiment of the present invention obtain system, as shown in fig. 6, should Method includes step S601~step S605.
Step S601, bill images acquisition device are scanned bill, obtain the first image of bill, by the first image It is uploaded to host.
Bill images acquisition device obtains the first image of bill using method shown in step S401, and will be on the first image Reach host.By taking the bill images acquisition device in Fig. 1 as an example, the control unit 11 of bill images acquisition device 1 controls communication First image is uploaded to host connected to it by unit 12.
Step S602, host judge whether the brightness of the first image meets the requirements.
Host receives the first image that bill images acquisition device uploads, and calculates the brightness of the first image, according to first The brightness of image and the preset standard brightness of bill images judge the first image brightness whether meet demand.
Step S603, if host determines that the brightness of the first image is unsatisfactory for requiring, according to the brightness calculation of the first image Sweep parameter adjusted value is sent to bill images acquisition device by sweep parameter adjusted value.
When host determines that the brightness of the first image is unsatisfactory for requiring, according to the pre- of the brightness of the first image and bill images It is marked with quasi- brightness calculation sweep parameter adjusted value, then sends sweep parameter adjusted value to bill images acquisition device.Host is also The control command for rescaning bill is sent to bill images acquisition device.
Step S604, bill images acquisition device, which adjusts scanning relevant to brightness of image according to sweep parameter adjusted value, joins Number, so as to be met the requirements using the image that sweep parameter adjusted scans.
When bill image acquiring device receives the sweep parameter adjusted value of host transmission and rescans the control of bill When system order, bill images acquisition device, which adjusts scanning relevant to brightness of image according to the sweep parameter adjusted value received, joins Number, wherein sweep parameter relevant to brightness of image is the fluorescent lifetime of the corresponding light source of the first image or the value of photoelectric current.
Step S605, bill images acquisition device rescan bill using sweep parameter adjusted, obtain bill Second image is uploaded to host by the second image.
Bill images acquisition device rescans bill using method shown in step S404, obtains the second figure of bill Picture, the second image that bill images acquisition device also will acquire are uploaded to host.
In the bill images acquisition system of the embodiment of the present invention, bill images device is in the first image for getting bill Afterwards, the first image is uploaded to host, host judges whether the brightness of the first image meets the requirements, and in the bright of the first image When degree is unsatisfactory for requiring, sent according to the brightness calculation sweep parameter adjusted value of the first image, and to bill images acquisition device Sweep parameter adjusted value and the control command for rescaning bill, bill images acquisition device are joined according to the scanning that host is sent Number adjusted value adjusts sweep parameter, and rescans bill.Bill images through the embodiment of the present invention obtain system, Neng Gouyou Effect solves the bill images acquisition device of the relevant technologies when obtaining the image of different types of bill, there is the bill got The problem of image cannot be met the requirements, and image analysis processing is placed on host side and is executed, it is possible to reduce bill images obtain The workload of device is taken, the efficiency that bill images obtain is improved.
Bill images acquisition device provided by the embodiment of the present invention for the specific hardware in equipment or can be installed on Software or firmware in equipment etc..The technical effect of device provided by the embodiment of the present invention, realization principle and generation is with before It is identical to state embodiment of the method, to briefly describe, Installation practice part does not refer to place, can refer to phase in preceding method embodiment Answer content.It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description, The specific work process of device and unit, the corresponding process during reference can be made to the above method embodiment, details are not described herein.
In embodiment provided by the present invention, it should be understood that disclosed device and method, it can be by others side Formula is realized.The apparatus embodiments described above are merely exemplary, for example, the division of the unit, only one kind are patrolled Function division is collected, there may be another division manner in actual implementation, in another example, multiple units or components can combine or can To be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual Coupling, direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some communication interfaces, device or unit It connects, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme 's.
In addition, each functional unit in embodiment provided by the invention can integrate in one processing unit, it can also To be that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words The part of the part or the technical solutions that contribute to the relevant technologies can be embodied in the form of software products, the meter Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention. And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing, in addition, term " the One ", " second ", " third " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
Finally, it should be noted that embodiment described above, only a specific embodiment of the invention, to illustrate the present invention Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair It is bright to be described in detail, those skilled in the art should understand that: anyone skilled in the art In the technical scope disclosed by the present invention, it can still modify to technical solution documented by previous embodiment or can be light It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention.Should all it cover in protection of the invention Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. a kind of bill images acquisition methods, which is characterized in that the described method includes:
Bill is scanned, the first image of the bill is obtained；
Judge whether the brightness of the first image meets the requirements, wherein judge whether the brightness of the first image meets and want It asks including judging whether the first image meets the requirement of false distinguishing；
If not satisfied, then according to the brightness of the first image and the preset standard brightness calculation sweep parameter tune of bill images Whole value, and sweep parameter relevant to brightness of image is adjusted according to the sweep parameter adjusted value, so as to use institute adjusted The image for stating sweep parameter scanning meets the requirement of false distinguishing；
The bill is rescaned using the sweep parameter adjusted, obtains the second image of the bill, and will be described Second image uploads to host, wherein the host extracts the bill for being analyzed and processed to second image Anti-counterfeiting characteristic simultaneously identifies the ticket contents, and identifies the ticket according to the anti-counterfeiting characteristic of the bill and the ticket contents According to the true and false.
2. obtaining the first figure of the bill the method according to claim 1, wherein being scanned to bill Picture, comprising:
The bill is scanned according to the scan pattern of setting, obtains the first image of the bill；
Wherein, the scan pattern of the setting includes that control setting light source luminescent irradiates described in the bill and/or control scanning The setting regions of bill, the setting light source include reflected image white light source, reflected image infrared light light source, reflected image purple Any one in outer radiant, transmission image white light source, transmission image infrared light light source and transmission image ultraviolet source, The setting regions of the bill includes the whole region of the bill or the partial region of the bill.
3. the method according to claim 1, wherein according to the brightness adjustment and brightness of image of the first image Relevant sweep parameter, comprising:
The brightness of the first image and preset standard brightness are compared and analyzed, sweep parameter adjusted value is obtained, according to institute It states sweep parameter adjusted value and adjusts the sweep parameter relevant to brightness of image.
4. according to the method described in claim 3, it is characterized in that, adjusting described and image according to the sweep parameter adjusted value The relevant sweep parameter of brightness, comprising:
The fluorescent lifetime of the corresponding light source of the first image or the value of photoelectric current are adjusted according to the sweep parameter adjusted value.
5. method according to any one of claims 1 to 4, which is characterized in that use the sweep parameter weight adjusted The bill is newly scanned, the second image of the bill is obtained, comprising:
It controls the bill to retract to setting position, the bill is scanned using the sweep parameter adjusted, is obtained To the second image of the bill.
6. a kind of bill images acquisition device, which is characterized in that described device includes:
First acquisition module obtains the first image of the bill for being scanned to bill；
Image judgment module, for judging whether the brightness of the first image meets the requirements, wherein judge the first image Brightness whether meet the requirements including judging whether the first image meets the requirement of false distinguishing；
Parameter adjustment module requires, basis if determining that the brightness of the first image is discontented for described image judgment module The brightness of the first image and the preset standard brightness calculation sweep parameter adjusted value of bill images, and according to the scanning Parameter adjustment value adjusts sweep parameter relevant to brightness of image, so as to use the image of the sweep parameter scanning adjusted Meet the requirement of false distinguishing；
Second acquisition module obtains the bill for rescaning the bill using the sweep parameter adjusted Second image；
The bill images acquisition device is used to second image uploading to host, wherein the host is used for described Second image is analyzed and processed, and is extracted the anti-counterfeiting characteristic of the bill and is identified the ticket contents, and according to the ticket According to anti-counterfeiting characteristic and the ticket contents identify the true and false of the bill.
7. device according to claim 6, which is characterized in that described first, which obtains module, includes:
Scanning element is scanned the bill for the scan pattern according to setting, obtains the first image of the bill；
Wherein, the scanning element includes setting subelement, and the setting subelement irradiates institute for controlling setting light source luminescent It states bill and/or control scans the setting regions of the bill, the setting light source includes reflected image white light source, reflectogram As infrared light light source, reflected image ultraviolet source, transmission image white light source, transmission image infrared light light source and transmission image Any one in ultraviolet source, the setting regions of the bill includes the whole region or the bill of the bill Partial region.
8. device according to claim 6, which is characterized in that the parameter adjustment module includes:
Brightness contrast unit is scanned for comparing and analyzing the brightness of the first image and preset standard brightness Parameter adjustment value adjusts the sweep parameter relevant to brightness of image according to the sweep parameter adjusted value.
9. according to the described in any item devices of claim 6 to 8, which is characterized in that described second, which obtains module, includes:
Rollback scanning element retracts for controlling the bill to setting position, using the sweep parameter adjusted to institute It states bill to be scanned, obtains the second image of the bill.
10. a kind of bill images obtain system, which is characterized in that the system comprises bill images acquisition device and host, institutes It states bill images acquisition device and the host carries out data interaction；
The bill images acquisition device is scanned bill, the first image of the bill is obtained, by the first image It is uploaded to the host；
The host judges whether the brightness of the first image meets the requirements, wherein judging the brightness of the first image is It is no to meet the requirements including judging whether the first image meets the requirement of false distinguishing；
If the host determines that the brightness of the first image is unsatisfactory for requiring, swept according to the brightness calculation of the first image Parameter adjustment value is retouched, the sweep parameter adjusted value is sent to the bill images acquisition device；
The bill images acquisition device adjusts sweep parameter relevant to brightness of image according to the sweep parameter adjusted value, with It is met the requirements using the image that the sweep parameter adjusted scans；
The bill images acquisition device rescans the bill using the sweep parameter adjusted, obtains the bill The second image, second image is uploaded to the host, wherein the host be also used to second image carry out Analysis processing, extracts the anti-counterfeiting characteristic of the bill and identifies the ticket contents, and the anti-counterfeiting characteristic according to the bill Identify the true and false of the bill with the ticket contents.
CN201610436960.1A 2016-06-17 2016-06-17 Bill images acquisition methods and bill images acquisition device, system Active CN107516369B (en)

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CN201610436960.1A CN107516369B (en) 2016-06-17 2016-06-17 Bill images acquisition methods and bill images acquisition device, system
PCT/CN2017/088294 WO2017215613A1 (en) 2016-06-17 2017-06-14 Ticket image acquisition method and ticket image acquisition apparatus and system

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