CN105976001B - Anti-counterfeiting license plate making Quick Response Code and serial number identifier recognition methods - Google Patents
Anti-counterfeiting license plate making Quick Response Code and serial number identifier recognition methods Download PDFInfo
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- CN105976001B CN105976001B CN201610335477.4A CN201610335477A CN105976001B CN 105976001 B CN105976001 B CN 105976001B CN 201610335477 A CN201610335477 A CN 201610335477A CN 105976001 B CN105976001 B CN 105976001B
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- 238000000034 method Methods 0.000 title claims abstract description 20
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000012797 qualification Methods 0.000 claims description 3
- 239000003086 colorant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisions for transferring data to distant stations, e.g. from a sensing device
- G06K17/0025—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisions for transferring data to distant stations, e.g. from a sensing device the arrangement consisting of a wireless interrogation device in combination with a device for optically marking the record carrier
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
- G06K7/10851—Circuits for pulse shaping, amplifying, eliminating noise signals, checking the function of the sensing device
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
- G06K7/10861—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices sensing of data fields affixed to objects or articles, e.g. coded labels
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- Electromagnetism (AREA)
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Abstract
The invention discloses anti-counterfeiting license plate making Quick Response Code and serial number identifier recognition methods, this method is that first car plate is inserted into card slot, and photo-sensor signal is sent out to control system by photoelectric sensor；It is then turned on strip source, and gives tacit consent to and camera is set with the exposure parameter of blue board；Then several frame images are acquired, and go the mean value of Quick Response Code specific region range gray value on image；Again by mean value compared with critical value, if mean value is more than critical value, with yellow card or the exposure parameter of person who is not a member of any political party setting camera and image is resurveyed；Hereafter it reads image and is handled, judge whether picture quality is qualified after processing, it is unqualified, next frame image is read, until qualified；The 2 D code information in image is obtained finally by Quick Response Code algorithm, and is sent to host computer to control pressure board machine work.The present invention can not only identify the Quick Response Code on various car plates, have the advantages that adaptivity is strong, also improve accuracy of identification.
Description
Technical field
The present invention relates to a kind of anti-counterfeiting license plate making Quick Response Code and serial number identifier recognition methods.
Background technology
Currently, the case where wrong pressure, leakage pressure and weight car plate are susceptible to during making car plate, or even there is also
The problem of deliberately suppressing car plate in violation of rules and regulations, causes the production of car plate, management to cause confusion, false-trademark and deck occurs.In order to solve mistake
Pressure leaks the problem of pressure, weight and intentional car plate of compacting in violation of rules and regulations, occurs one kind now with Quick Response Code as identification of sequence number
Car plate, the installation position of Quick Response Code, the i.e. Ministry of Public Security provide the standard of Quick Response Code specific region on Ministry of Public Security's Uniform provisions car plate,
And the unified semi-finished product car plate that provides is for making finished product car plate, when use, is obtained by identifying Quick Response Code (serial number identifier)
2 D code information and sequence number information are taken, then car plate is made to control copy press, to play anti-fake effect.But due to
Car plate has plurality of specifications and color；So how to provide a kind of method that can identify the Quick Response Code on various car plates at
Present urgent problem to be solved.
Invention content
The object of the present invention is to provide a kind of anti-counterfeiting license plate making Quick Response Code and serial number identifier recognition methods.
The present invention can identify the Quick Response Code on various car plates, have the advantages that adaptivity is strong.
Technical scheme of the present invention：Anti-counterfeiting license plate making Quick Response Code and serial number identifier recognition methods, including it is following
Step：
A, car plate is inserted into card slot, and photoelectric sensor detects that car plate sends out photo-sensor signal；
B, after control system receives photo-sensor signal, light source controller is opened, light-source controller controls bar shaped is passed through
Light source working, and give tacit consent to and camera is set with the exposure parameter of blue board；
C, after camera setting, the real-time multiple frame acquisitions of image are carried out to Quick Response Code specific region using camera, acquisition is several
Terminate after frame image, obtains image group A；
D, control system takes the mean value of the Quick Response Code specific region range gray value on the image in image group A, and will be equal
Value is compared with the critical value of setting；If mean value is more than critical value, control system sets phase with yellow card or the exposure parameter of person who is not a member of any political party
Machine is then back to step c；If mean value is less than or equal to critical value, the 1st frame image in image group A is read；The yellow card
Exposure parameter is identical with the exposure parameter of person who is not a member of any political party；
E, denoising, binary conversion treatment and stretch processing are carried out to 1 frame image of reading, obtains image B；
F, control system judges whether the picture quality of image B is qualified, if picture quality is qualified, passes through Quick Response Code algorithm
The 2 D code information in image B is obtained, 2 D code information C is obtained；If picture quality is unqualified, judge whether image B is image
Last frame image in group A, if so, control system can not read Quick Response Code and power cut-off, if it is not, then reading image
Next frame image in group A, is then back to step e；
G, 2 D code information C is sent to host computer by control system, and host computer gives the instruction that pressure board machine allows operation.
It is several in the step c in anti-counterfeiting license plate making Quick Response Code above-mentioned and serial number identifier recognition methods
Frame image is 20 frame images.
In anti-counterfeiting license plate making Quick Response Code above-mentioned and serial number identifier recognition methods, the control system is industry
Camera IO control lines.
In anti-counterfeiting license plate making Quick Response Code above-mentioned and serial number identifier recognition methods, the two dimension in the step f
Code algorithm is to read algorithm using the Quick Response Code that edge enhances.
In anti-counterfeiting license plate making Quick Response Code above-mentioned and serial number identifier recognition methods, the Quick Response Code specific region
For the region limited in the required standard of the Ministry of Public Security.
In anti-counterfeiting license plate making Quick Response Code above-mentioned and serial number identifier recognition methods, the judgement figure in the step
As whether qualification is for the picture quality of B, Quick Response Code is positioned according to the Quick Response Code finger URL in image B, if Quick Response Code is fixed
Then picture quality is qualified for position success, and picture quality is unqualified if Quick Response Code positioning is unsuccessful.
Compared with prior art, the present invention devises a kind of anti-counterfeiting license plate making Quick Response Code that adaptivity is strong and sequence
Symbolic identifier recognition methods, the car plate of different size can be installed by card slot, and facilitates the car plate of camera acquisition different size
On Quick Response Code；The opening and closing of strip source are controlled by light source controller, additionally it is possible to control strip light as needed
The brightness in source is applicable in different use environments；Camera is set with the exposure parameter of blue board by control system, after acquiring image,
Take the mean value of Quick Response Code specific region range gray value compared with critical value, it can at overexposure (i.e. mean value is more than critical value)
The exposure parameter of automatic modification camera, adjusts the exposure parameter (yellow card is identical with the exposure parameter of person who is not a member of any political party) to yellow card or person who is not a member of any political party,
It carries out resurveying image, so as to blue board, yellow card and the identification of the Quick Response Code of person who is not a member of any political party suitable for car plate, not only increase
Accuracy of identification, and also improve adaptivity.In addition, the present invention can prevent single acquisition from occurring by acquiring 20 frame images
Mistake improves Quick Response Code accuracy of identification；Algorithm is read by using the Quick Response Code of edge enhancing, identification essence can be further increased
Degree.Therefore, the present invention can not only identify the Quick Response Code on various car plates, have the advantages that adaptivity is strong, also improve knowledge
Other precision.
Description of the drawings
Fig. 1 is the work flow diagram of the present invention.
Specific implementation mode
With reference to embodiment, the present invention is further illustrated, but is not intended as the foundation limited the present invention.
Embodiment.Anti-counterfeiting license plate making Quick Response Code and serial number identifier recognition methods, include the following steps：
A, car plate is inserted into card slot, and photoelectric sensor detects that car plate sends out photo-sensor signal；
B, after control system receives photo-sensor signal, light source controller is opened, light-source controller controls bar shaped is passed through
Light source working, and give tacit consent to and camera is set with the exposure parameter of blue board；
C, after camera setting, the real-time multiple frame acquisitions of image are carried out to Quick Response Code specific region using camera, acquisition is several
Terminate after frame image, obtains image group A；
D, control system takes the mean value of the Quick Response Code specific region range gray value on the image in image group A, and will be equal
Value is compared with the critical value of setting；If mean value is more than critical value, control system sets phase with yellow card or the exposure parameter of person who is not a member of any political party
Machine is then back to step c；If mean value is less than or equal to critical value, the 1st frame image in image group A is read；The yellow card
Exposure parameter is identical with the exposure parameter of person who is not a member of any political party；
E, denoising, binary conversion treatment and stretch processing are carried out (at denoising, binaryzation to 1 frame image of reading
Reason and stretch processing are the conventional treatment method in image procossing), obtain image B；
F, control system judges whether the picture quality of image B is qualified, if picture quality is qualified, passes through Quick Response Code algorithm
The 2 D code information in image B is obtained, 2 D code information C is obtained；If picture quality is unqualified, judge whether image B is image
Last frame image in group A, if so, control system can not read Quick Response Code and power cut-off, if it is not, then reading image
Next frame image in group A, is then back to step e；
G, 2 D code information C is sent to host computer by control system, and host computer gives the instruction that pressure board machine allows operation.
Several frame images in the step c are 20 frame images；The control system is industrial camera IO control lines；It is described
Quick Response Code algorithm in step f is to read algorithm using the Quick Response Code that edge enhances；The Quick Response Code specific region is the Ministry of Public Security
Required standard in the region that limits；Whether qualification is the picture quality for judging image B in the step, according in image B
Quick Response Code finger URL Quick Response Code is positioned, picture quality is qualified if Quick Response Code positions successfully, if Quick Response Code positioning is not
It is successful then picture quality is unqualified.
Wherein, the exposure parameter of yellow card and the exposure parameter of person who is not a member of any political party are identical；Similarly, in order to be suitable for new energy car plate, also
It can be set according to car plate green after the car plate of white green gradient color and preceding Huang for comparing Quick Response Code specific region range gray scale
The associated critical value of the mean value of value is joined by control system with the exposure of white green gradient color car plate with step d according to comparable situation
The exposure parameter of green car plate sets camera after several or preceding Huang.The corresponding exposure parameter of car plate of above-mentioned different colours is routine
Setting.
Claims (4)
1. anti-counterfeiting license plate making Quick Response Code and serial number identifier recognition methods, which is characterized in that include the following steps：
A, car plate is inserted into card slot, and photoelectric sensor detects that car plate sends out photo-sensor signal；
B, after control system receives photo-sensor signal, light source controller is opened, light-source controller controls strip source is passed through
Work, and give tacit consent to and camera is set with the exposure parameter of blue board；
C, after camera setting, the real-time multiple frame acquisitions of image is carried out to Quick Response Code specific region using camera, acquire several frame figures
Terminate as after, obtains image group A；
D, control system takes the mean value of the Quick Response Code specific region range gray value on the image in image group A, and by mean value with
The critical value of setting compares；If mean value is more than critical value, control system sets camera with yellow card or the exposure parameter of person who is not a member of any political party, so
Return to step c afterwards；If mean value is less than or equal to critical value, the 1st frame image in image group A is read；
E, denoising, binary conversion treatment and stretch processing are carried out to 1 frame image of reading, obtains image B；
F, control system judges whether the picture quality of image B is qualified, if picture quality is qualified, is obtained by Quick Response Code algorithm
2 D code information in image B obtains 2 D code information C；If picture quality is unqualified, judge whether image B is in image group A
Last frame image, if so, control system can not read Quick Response Code and power cut-off, if it is not, then reading in image group A
Next frame image, be then back to step e；
G, 2 D code information C is sent to host computer by control system, and host computer gives the instruction that pressure board machine allows operation；
Several frame images in the step c are 20 frame images；
The control system is industrial camera IO control lines.
2. anti-counterfeiting license plate making Quick Response Code according to claim 1 and serial number identifier recognition methods, feature exist
In：Quick Response Code algorithm in the step f is to read algorithm using the Quick Response Code that edge enhances.
3. anti-counterfeiting license plate making Quick Response Code according to claim 1 and serial number identifier recognition methods, feature exist
In：The Quick Response Code specific region be the Ministry of Public Security required standard in the region that limits.
4. the anti-counterfeiting license plate making Quick Response Code according to any claim in claims 1 to 3 and serial number identifier
Recognition methods, it is characterised in that：Whether qualification is the picture quality for judging image B in the step, according to two in image B
Dimension code finger URL positions Quick Response Code, and picture quality is qualified if Quick Response Code positions successfully, if Quick Response Code positioning is unsuccessful
Then picture quality is unqualified.
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107273779A (en) * | 2017-06-12 | 2017-10-20 | 广州川鸿电子有限公司 | A kind of bar code image recognition methods, system and device |
| CN109359497A (en) * | 2018-09-17 | 2019-02-19 | 四川长虹电器股份有限公司 | A kind of positioning and recognition methods in VAT invoice two-dimensional image code region |
| CN111488752A (en) * | 2019-01-29 | 2020-08-04 | 北京骑胜科技有限公司 | Two-dimensional code identification method and device, electronic equipment and storage medium |
| CN110475079A (en) * | 2019-09-10 | 2019-11-19 | 上海快仓智能科技有限公司 | A kind of image exposure luminance regulating method, system and associated component |
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| CN101184168A (en) * | 2007-12-20 | 2008-05-21 | 四川川大智胜软件股份有限公司 | License plate luminance contrast based camera shutter and gain composite control method |
| CN101811481A (en) * | 2010-04-28 | 2010-08-25 | 燕山大学 | Anti-counterfeiting license plate containing optical hidden code and production and identification method thereof |
| CN101893804A (en) * | 2010-05-13 | 2010-11-24 | 杭州海康威视软件有限公司 | Exposure control method and device |
| CN104816685A (en) * | 2015-04-09 | 2015-08-05 | 陈汉翔 | Program control variable two-dimension code-based anti-counterfeiting license plate and application method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2458701C (en) * | 2008-03-28 | 2018-02-21 | Pips Tech Limited | Vehicle identification system |
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| CN101184168A (en) * | 2007-12-20 | 2008-05-21 | 四川川大智胜软件股份有限公司 | License plate luminance contrast based camera shutter and gain composite control method |
| CN101811481A (en) * | 2010-04-28 | 2010-08-25 | 燕山大学 | Anti-counterfeiting license plate containing optical hidden code and production and identification method thereof |
| CN101893804A (en) * | 2010-05-13 | 2010-11-24 | 杭州海康威视软件有限公司 | Exposure control method and device |
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