CN103679901B - Improve method and visitor's registration integral machine of OCR certificate recognition efficiency - Google Patents
Improve method and visitor's registration integral machine of OCR certificate recognition efficiency Download PDFInfo
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- CN103679901B CN103679901B CN201310740875.0A CN201310740875A CN103679901B CN 103679901 B CN103679901 B CN 103679901B CN 201310740875 A CN201310740875 A CN 201310740875A CN 103679901 B CN103679901 B CN 103679901B
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Abstract
The present invention relates to a kind of method improving OCR certificate recognition effect and visitor's registration integral machine based on the method, including: touching display screen, OCR certificate recognition unit, thermal printer, face snap photographic head, network interface, telephony interface, USB interface, switching on and shutting down button, alternating current power supply input interface, card sender, card reader of ID card, wherein said OCR certificate recognition unit, inside comprises OCR certificate recognition system image input device, picture position fine tuning structure part, light filling matrix, certificate plummer, front reflective plane mirror, supporting structure；Described method improves light filling uniformity by OCR certificate recognition unit, and then is greatly improved OCR certificate recognition effect.Compared with prior art, the present invention has the advantages such as light filling circuit is simple, reject rate is low, misclassification rate is low, recognition speed is fast, ease for use is good.
Description
Technical field
The present invention relates to OCR(Optical Character Recognition) certificate identification technical field, particularly relate to a kind of method improving OCR certificate recognition efficiency and visitor's registration integral machine.
Background technology
It is known that, visitor's register system refers to the most effectively realize passing in and out personnel the device that situation is registered and searched, it is mainly used in record full and accurate, quick and comes to visit the certificate information of personnel, image information, and visiting information is provided multimode inquiry easily, present stage visitor's register system is typically made up of guest machine and the software system supporting with guest machine.
In existing guest machine OCR certificate recognition system, image input device mainly uses scanner or photographic head, and it is provided with light filling parts and scanner or photographic head cooperating, during use, certificate to be identified is placed on the ad-hoc location of certificate bearing area, open light filling circuit, produced the light (at least needing 2 kinds of LED as supplementary lighting sources) of different-waveband by the supplementary lighting sources timesharing in light filling matrix, image input device carries out certificate image (personnel's head portrait) and the location of Word message (name, sex, nationality, date of birth, address, passport NO.) and identification respectively.
Wherein use scanner to be primarily present problems with as the image input device of OCR certificate recognition system: one, recognition speed is slow, and two, reject rate and misclassification rate are high, three, there is mechanical failure, four, noise big；Photographic head is used to be primarily present problems with as the image input device of OCR certificate recognition system: one, reject rate and misclassification rate are high, two, certificate can recognize that district needs to be fixed on specific region, ease for use is poor, three, light filling circuit is complicated, needing supplementary lighting sources timesharing to produce the light of different-waveband, the image under different-waveband is analyzed identifying by identification equipment.
Summary of the invention
The present invention is directed to shortcoming and defect present in prior art, propose that a kind of light filling circuit is simple, reject rate is low, misclassification rate is low, recognition speed is fast, ease for use is good, have no mechanical damage, the advantage such as noiselessness, it is greatly improved light filling uniformity, and then is greatly improved method and visitor's registration integral machine of the raising OCR certificate recognition efficiency of OCR certificate recognition effect.
The present invention can be reached by following measures:
nullA kind of method improving OCR certificate recognition efficiency，After it is characterized in that certificate to be identified is placed on certificate identification bearing area，LED light source in the light filling matrix of master control module controls certificate plummer both sides is luminous，Light filling matrix sends visible ray,Visible ray is uniformly distributed in certificate plummer，Certificate on certificate plummer is through the reflection of front reflective plane mirror，Make reflected image by camera collection to，The certificate image collected is cut out and processes，It is then transferred to main control module，Certificate image is identified by main control module，Output text message，Wherein set the long limit of certificate and certificate plummer base angle as θ，After the reflection of certificate premenstrual reflective plane mirror is collected by photographic head，First certificate image is carried out maximum area cutting，Then the contrast of certificate size parameter values is preset with system，When certificate image after cutting is identical with systemic presupposition parameter，Automatically certificate identification process is proceeded to；When certificate image after cutting and systemic presupposition parameter differ, after θ value being carried out subtracting 1 °, then certificate image is carried out maximum area cutting, and preset the contrast of certificate size parameter values in system, time by that analogy to θ=0, it is minimum that certificate image carries out the area after maximum area cutting.
A kind of visitor registration integral machine of the method utilizing above-mentioned raising OCR certificate recognition efficiency, it is characterized in that being provided with OCR certificate recognition unit, OCR certificate recognition unit includes photographic head, illuminator, certificate plummer, light filling matrix, the light filling circuit being connected with light filling matrix, the main control module being connected with light filling circuit and photographic head respectively, the picture position fine tuning structure part being connected with photographic head, light filling matrix includes riser and the LED light source being fixed on riser, LED light source more than two of which is lined up multiple rows of, the light filling matrix of two equal numbers is separately fixed at the both sides of certificate plummer, illuminator is fixed on the front of certificate plummer, photographic head is fixed on the back side top of certificate plummer through picture position fine tuning structure part.
In the present invention, certificate plummer is the table top that transparent toughened glass is made, preferably rectangular table top, and length and width range preferably from 12cm × 9cm.
In the present invention, illuminator is compared with common illuminator, has and is provided with reflecting coating on eyeglass, can effectively shorten the distance of photographic head and certificate plummer, and can effectively reduce " diplopia " that common illuminator is formed.
The present invention is additionally provided be connected with main control module with the touch control display that main control module is connected and the card reader of ID card that main control module is connected and the thermal printer that main control module is connected and be fixed on rear side of body for capturing the network communication interface that the face photographic head of visitor's portrait is connected and the telephony interface being connected with main control module with main control module.
Heretofore described touch control display, for display system software interface, and is controlled visitor's registration integral machine；Described OCR certificate recognition unit comprises OCR certificate recognition system image input device (photographic head), picture position fine tuning structure part, light filling matrix, certificate plummer, front reflective plane mirror and supporting structure, the image transmitting of collection, for certificate is carried out image acquisition, is identified by described OCR certificate recognition unit to main control module；OCR certificate recognition system image input device (photographic head), it is fixed on the fine tuning structure part of picture position, control light filling matrix is opposite to the certificate on certificate plummer and carries out light filling, image is gathered by front reflective plane mirror, and carry out certificate identification by USB transmission to main control module, described OCR certificate recognition system image input device includes external trigger I/O port, and external trigger I/O port can produce low and high level change；Described picture position fine tuning structure part, the position of scalable OCR certificate recognition system image input device, make image acquisition region mate with certificate plummer；Described light filling matrix, this module contains emission spectrum scope and falls the LED element in visible region, DCDC power supply voltage stabilizing chip and peripheral circuit.The wherein enable pin of DCDC power supply voltage stabilizing chip, is controlled by the external trigger I/O port of OCR certificate recognition system image input device；Described certificate plummer, for territory, certificate rest area and recognition region, scope is 12cm*9cm；Described front reflective plane mirror, can shorten the distance of OCR certificate recognition system image input device and certificate plummer, eliminates " diplopia " that common illuminator is formed, improves the binaryzation accuracy rate of image；Described supporting structure, for the body junction component of OCR certificate recognition unit；Thermal printer, is connected with main control module, for printing visitor information and the unique Quick Response Code corresponding with visitor information；Face snap photographic head, is connected with main control module, it is achieved the candid photograph of visitor's face, and is preserved to main control module by image transmitting；Network interface, is connected with server by netting twine, it is achieved network service；Described telephony interface, by external telephone set and telephone exchange, can automatically dial interviewed people's phone, notify that interviewed people has visitor；Described USB interface is connected with main control module, can the equipment such as external access of mouse, keyboard；Described switching on and shutting down button, it is achieved the start of visitor's registration integral machine and shutdown；Described alternating current power supply input interface is connected with main control module, the power input interface of visitor's registration integral machine；Described card sender is connected with main control module, for ISO/IEC15693 agreement card sender, is connected with main control module；Described card reader of ID card, is connected with main control module, it is achieved directly reading of China second-generation identity card, and the information of recognition is transferred to main control module.
When the present invention uses, when visitor visits, first show perfect instrument, if identity card, by the card reader of ID card collection of visitor's registration integral machine, record identity information, to interviewed people examine reception visiting after, single by thermal-sensitive printer printing visitor or provide visa card, when visitor leaves, by brush visa card or use visitor's registration integral machine OCR certificate recognition unit to visitor singly take pictures label from；When show when visitor comes to visit is the certificate not directly read of non-identity card class, gathered by the OCR certificate recognition unit in visitor's registration integral machine, record certificate information, to interviewed people examine reception visiting after, by thermal-sensitive printer printing visitor list or granting visa card, when visitor leaves, by brush visa card or use visitor's registration integral machine OCR certificate recognition unit to visitor singly take pictures label from；The certificate information that wherein visitor comes to visit can upload onto the server, it is achieved remote inquiry, management.
The present invention is compared with prior art, have the advantage that 1, light filling circuit simple: circuit falls the LED element composition in visible region only with emission spectrum scope, control to carry out light filling by image input device photographic head, decrease the kind of light filling LED, simplify certificate identification step；2, reject rate, misclassification rate are low: improving light filling uniformity, make the binaryzation accuracy rate of image improve, reject rate and misclassification rate substantially reduce；3, recognition speed is fast: existing OCR certificate identification technology, need supplementary lighting sources timesharing to produce the light (at least needing 2 kinds of LED as supplementary lighting sources) of different-waveband, carry out certificate image (personnel's head portrait) and the location of Word message (name, sex, nationality, date of birth, address, passport NO.) and identification respectively.The present invention simplifies supplementary lighting sources, supplementary lighting sources only with emission spectrum scope fall in visible region LED element composition, the step of certificate image and Word message identification is united two into one, shorten the light filling time, simplify identification step, improve recognition speed；4, ease for use is good: existing OCR certificate recognition system, it is desirable to certificate is fixed in the position of certificate plummer, leaves this position None-identified.The present invention optimizes OCR recognizer, in the range of certificate carrying identification window, certificate can be carried out optional position identification.
Accompanying drawing illustrates:
Accompanying drawing 1 is the overall structure schematic diagram of visitor's registration integral machine.
Accompanying drawing 2 is the overall structure left view of visitor's registration integral machine.
Accompanying drawing 3 is the overall structure right view of visitor's registration integral machine.
Accompanying drawing 4 is the detailed construction schematic diagram of OCR certificate recognition unit.
Accompanying drawing 5 is the workflow diagram of OCR certificate recognition unit.
Accompanying drawing 6 is the workflow diagram of visitor's registration integral machine.
Reference: touching display screen 1, OCR certificate recognition unit 2, thermal printer 3, face snap photographic head 4, network interface 5, telephony interface 6, USB interface 7, switching on and shutting down button 8, alternating current power supply input interface 9, OCR certificate recognition system image input device 10, picture position fine tuning structure part 11, light filling matrix 12, certificate plummer 13, front reflective plane mirror 14, supporting structure 15, card sender 16, card reader of ID card 17.
Detailed description of the invention:
The present invention is further illustrated with embodiment below in conjunction with the accompanying drawings.
Embodiment 1:
As shown in Figures 1 to 4, the present invention proposes a kind of visitor's registration integral machine, including: touching display screen 1, OCR certificate recognition unit 2, thermal printer 3, face snap photographic head 4, network interface 5, telephony interface 6, USB interface 7, switching on and shutting down button 8, alternating current power supply input interface 9, card sender 16, card reader of ID card 17.
Described touch control display 2, for display system software interface, and is controlled visitor's registration integral machine.
Described OCR certificate recognition unit 2, inside comprises 6 modules: OCR certificate recognition system image input device 10, picture position fine tuning structure part 11, light filling matrix 12, certificate plummer 13, front reflective plane mirror 14, supporting structure 15, the image transmitting of collection, for certificate is carried out image acquisition, is identified by described OCR certificate recognition unit 2 to main control module.
Described thermal printer 3, is connected with main control module, for printing visitor information and the unique Quick Response Code corresponding with visitor information.
Described face snap photographic head 4, is connected with main control module, it is achieved the candid photograph of visitor's face, and is preserved to main control module by image transmitting.
Described network interface 5, is connected with server by netting twine, it is achieved network service.
Described telephony interface 6, by external telephone set and telephone exchange, can automatically dial interviewed people's phone, notify that interviewed people has visitor.
Described USB interface 7, can the equipment such as external access of mouse, keyboard.
Described switching on and shutting down button 8, it is achieved the start of visitor's registration integral machine and shutdown.
Described alternating current power supply input interface 9, the power input interface of visitor's registration integral machine.
Described light filling matrix 12, is connected with OCR certificate recognition system image input device 10, is operated according to the signal of OCR certificate recognition system image input device 10.
Described card sender 16, for ISO/IEC15693 agreement card sender, is connected with main control module.
Described card reader of ID card 17, is connected with main control module, it is achieved directly reading of China second-generation identity card, and the information of recognition is transferred to main control module.
Embodiment 2:
As shown in Figure 4, described OCR certificate recognition unit 2 is internal comprises: OCR certificate recognition system image input device 10, picture position fine tuning structure part 11, light filling matrix 12, certificate plummer 13, front reflective plane mirror 14, supporting structure 15.
Described OCR certificate recognition system image input device 10, it is fixed on picture position fine tuning structure part 11, control light filling matrix 12 is opposite to the certificate on certificate plummer 13 and carries out light filling, gathers image by front reflective plane mirror 14, and carries out certificate identification by USB transmission to main control module.Described OCR certificate recognition system image input device 10 includes external trigger I/O port, and external trigger I/O port can produce low and high level change.
Described picture position fine tuning structure part 11, the position of scalable OCR certificate recognition system image input device 10, make image acquisition region mate with certificate plummer 13.
The core of the present invention is light filling matrix 12, and this module contains emission spectrum scope and falls the LED element in visible region, DCDC power supply voltage stabilizing chip and peripheral circuit.The wherein enable pin of DCDC power supply voltage stabilizing chip, controlled by the external trigger I/O port of OCR certificate recognition system image input device 10, when the external trigger I/O port of OCR certificate recognition system image input device 10 is high level, DCDC power supply voltage stabilizing chip is started working, and output voltage is for light filling matrix luminescent.
Described certificate plummer 13, for territory, certificate rest area and recognition region, scope is 12cm*9cm.
Described front reflective plane mirror 14, can shorten the distance of OCR certificate recognition system image input device 10 and certificate plummer 13, eliminates " diplopia " that common illuminator is formed, improves the binaryzation accuracy rate of image.
Described supporting structure 15, for the body junction component of OCR certificate recognition unit 2.
Embodiment 3:
As shown in Figure 6, the workflow of visitor's registration integral machine that the present invention proposes:
Step 1: after visitor arrives, inform its interviewed people of visitor registration integral machine operator, and provide identity card, driving license, passport etc. to can prove that the perfect instrument of its identity；
Step 2: the type of credential that visitor registration integral machine operator provides according to visitor, the touching display screen 1 of operation visitor's registration integral machine, prompting according to touching display screen 1 carries out directly reading or the OCR certificate identification of driving license, passport etc. of identity card, and control face snap photographic head 4 by touching display screen 1 visitor is carried out face snap, visitor information is by being saved after safety verification and uploading onto the server together with face snap image；
Step 3: visitor registration integral machine operator is according to the prompting of touching display screen 1, and it has visitor to use phone or strong screen to notify interviewed people, and confirms whether interviewed people accepts to come to visit；
Step 4: after confirming that interviewed people accepts to come to visit, visitor registration integral machine operator is according to the prompting of touching display screen 1, improve the visiting origin of an incident, in company with information such as personnel, belongings, access durations, it is single that visitor's registration integral machine automatically generates the visitor comprising all information of visitor and corresponding Quick Response Code, and visitor's single pass-through thermal printer 3 prints；Visitor registration integral machine operator also can pass through touching display screen 1, and visitor is provided visa card by operation card sender 16；Visitor carries out relevant access service by visitor's list or visa card；
Step 5: access after terminating, visitor by visitor's list or visa card carry out signing from.
Embodiment 4:
As it is shown in figure 5, the present invention proposes a kind of method improving OCR certificate recognition effect, said method comprising the steps of:
Step 1: main control module sends OCR certificate recognition command, after OCR certificate recognition system image input device 10 receives OCR certificate recognition command, is set high by the level of external trigger I/O port；
Step 2: high level makes DCDC power supply voltage stabilizing chip enable, output voltage；
Step 3: output voltage makes light filling matrix 12 work, and light filling matrix 12 sends visible ray, it is seen that light is uniformly distributed in certificate plummer 13；
Step 4: the certificate on certificate plummer 13 is collected by OCR certificate recognition system image input device 10 through the reflection of front reflective plane mirror 14, reflected image；
The certificate image collected is cut out and processes by step 5:OCR certificate recognition system image input device 10, is then transferred to main control module；
Step 6: certificate image is identified by main control module, output text message (name, sex, nationality, date of birth, address, passport NO.).
The present invention compared with prior art, has that light filling circuit is simple, reject rate is low, misclassification rate is low, recognition speed is fast, ease for use is good, has no mechanical damage, the advantage such as noiselessness.
What embodiments of the invention were announced is its preferably embodiment, but is not limited to this.Those of ordinary skill in the art, easily according to above-described embodiment, understands the spirit of the present invention, and makes different amplifications and industrialization, but as long as within without departing from the spirit and principles in the present invention, within protection scope of the present invention.
Claims (5)
- null1. the method improving OCR certificate recognition efficiency，After it is characterized in that certificate to be identified is placed on certificate identification bearing area，LED light source in the light filling matrix of master control module controls certificate plummer both sides is luminous，Light filling matrix sends visible ray,Visible ray is uniformly distributed in certificate plummer，Certificate on certificate plummer is through the reflection of front reflective plane mirror，Make reflected image by camera collection to，The certificate image collected is cut out and processes，It is then transferred to main control module，Certificate image is identified by main control module，Output text message，Wherein set the long limit of certificate and certificate plummer base angle as θ，After the reflection of certificate premenstrual reflective plane mirror is collected by photographic head，First certificate image is carried out maximum area cutting，Then the contrast of certificate size parameter values is preset with system，When certificate image after cutting is identical with systemic presupposition parameter，Automatically certificate identification process is proceeded to；When certificate image after cutting and systemic presupposition parameter differ, after θ value being carried out subtracting 1 °, then certificate image is carried out maximum area cutting, and preset the contrast of certificate size parameter values in system, time by that analogy to θ=0, it is minimum that certificate image carries out the area after maximum area cutting.
- 2. the visitor's registration integral machine utilizing the method improving OCR certificate recognition efficiency as claimed in claim 1, it is characterized in that being provided with OCR certificate recognition unit, OCR certificate recognition unit includes photographic head, illuminator, certificate plummer, light filling matrix, the light filling circuit being connected with light filling matrix, the main control module being connected with light filling circuit and photographic head respectively, the picture position fine tuning structure part being connected with photographic head, light filling matrix includes riser and the LED light source being fixed on riser, LED light source more than two of which is lined up multiple rows of, the light filling matrix of two equal numbers is separately fixed at the both sides of certificate plummer, illuminator is fixed on the front of certificate plummer, photographic head is fixed on the back side top of certificate plummer through picture position fine tuning structure part.
- A kind of visitor's registration integral machine the most according to claim 2, it is characterised in that certificate plummer is transparent toughened glass table top, and for rectangular mesa, length and width scope is 12cm × 9cm.
- A kind of visitor's registration integral machine the most according to claim 2, it is characterised in that the lens surface of illuminator is provided with reflecting coating.
- A kind of visitor's registration integral machine the most according to claim 2, it is characterised in that be additionally provided be connected with main control module with the touch control display that main control module is connected and the card reader of ID card that main control module is connected and the thermal printer that main control module is connected and be fixed on rear side of body for capturing the network communication interface that the face photographic head of visitor's portrait is connected and the telephony interface being connected with main control module with main control module.
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| CN105741358B (en) * | 2016-03-08 | 2018-06-29 | 李洪臣 | One kind is based on the self-service print system of OCR Visual identification technology admission tickets |
| CN106295629B (en) | 2016-07-15 | 2018-06-15 | 北京市商汤科技开发有限公司 | structured text detection method and system |
| CN106228663A (en) * | 2016-09-22 | 2016-12-14 | 北京联华博创科技有限公司 | A kind of guest machine being applied in law court and caller management method |
| CN106961535B (en) * | 2017-03-16 | 2019-07-26 | 芜湖星途机器人科技有限公司 | High photographing instrument image capturing system |
| CN109359647A (en) * | 2018-10-16 | 2019-02-19 | 翟红鹰 | Identify the method, equipment and computer readable storage medium of a variety of certificates |
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| NL1012592C2 (en) * | 1999-07-13 | 2001-01-16 | Dutch A & A Trading Bv | Detection system with video camera. |
| JP4508553B2 (en) * | 2003-06-02 | 2010-07-21 | カシオ計算機株式会社 | Captured image projection device and captured image correction method |
| CN2671013Y (en) * | 2004-01-16 | 2005-01-12 | 广州市索源信息技术有限公司 | Automatic visiting identifying register devices |
| US7593595B2 (en) * | 2004-08-26 | 2009-09-22 | Compulink Management Center, Inc. | Photographic document imaging system |
| US8422788B2 (en) * | 2008-08-26 | 2013-04-16 | Microsoft Corporation | Automatic image straightening |
| CN201348784Y (en) * | 2008-12-25 | 2009-11-18 | 苏州工业园区中际机电有限公司 | Valid certification recognizing instrument |
| CN101625760A (en) * | 2009-07-28 | 2010-01-13 | 谭洪舟 | Method for correcting certificate image inclination |
| CN201974863U (en) * | 2010-07-02 | 2011-09-14 | 广州市嘉赫信息科技有限公司 | Intelligent visiting registration management system |
| CN102801528A (en) * | 2012-08-17 | 2012-11-28 | 珠海市载舟软件技术有限公司 | Authentication system and method based on intelligent mobile communication equipment |
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