CN105976001A - False-proofing license plate making QR code and serial number identifier identification method - Google Patents
False-proofing license plate making QR code and serial number identifier identification method Download PDFInfo
- Publication number
- CN105976001A CN105976001A CN201610335477.4A CN201610335477A CN105976001A CN 105976001 A CN105976001 A CN 105976001A CN 201610335477 A CN201610335477 A CN 201610335477A CN 105976001 A CN105976001 A CN 105976001A
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- quick response
- response code
- image
- serial number
- license plate
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000002950 deficient Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 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
- 230000003287 optical effect Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Collating Specific Patterns (AREA)
- Credit Cards Or The Like (AREA)
Abstract
The invention discloses a false-proofing license plate making QR code and serial number identifier identification method. The method includes that a license plate is inserted into a slot, photoelectric sensor signals are sent to a control system via a photoelectric sensor; a bar-shaped light source is started, and a camera is set based on the exposure parameters of a blue board in default; a plurality of frames of images are acquired, and the mean value of the gray value of the QR code specified area coverage on the images is taken; the mean value and a critical value are compared, if the mean value is greater than the critical value, the camera is set based on the exposure parameters of a yellow plate or a white plate and images are acquired again; and then the images are read and processed, whether the images are qualified is determined after the processing, if unqualified, the next frame of image is read until the frame of image is qualified, and at the end, the QR code information in the acquired images can be obtained by means of a QR code algorithm and is sent to a host computer to control a plate pressing device. According to the invention, the QR codes on various license plates can be identified, the advantage of adaptability is guaranteed, and the identification precision is improved.
Description
Technical field
The present invention relates to a kind of anti-counterfeiting license plate making Quick Response Code and serial number identifier identification side
Method.
Background technology
At present, mistake pressure, leakage pressure and the feelings of weight car plate easily occur during making car plate
Condition, even there is also the problem suppressing car plate the most in violation of rules and regulations, causes the production of car plate, management
Cause confusion, false-trademark and deck occur.In order to solve mistake pressure, leakage pressure, weight and deliberately violation
The problem of compacting car plate, occur in that now a kind of with Quick Response Code as the car of identification of sequence number
Board, on the Ministry of Public Security's Uniform provisions car plate Quick Response Code position is set, i.e. the Ministry of Public Security regulation Quick Response Code
The standard of specific region, and unify to provide semi-finished product car plate to be used for making finished product car plate, during use
By identifying that Quick Response Code (i.e. serial number identifier) obtains 2 D code information and sequence number information,
Control copy press again and make car plate, thus play false proof effect.But, owing to car plate has
There are plurality of specifications and color；So, how a kind of two dimension being capable of identify that on various car plate is provided
The method of code has become present problem demanding prompt solution.
Summary of the invention
It is an object of the invention to, it is provided that a kind of anti-counterfeiting license plate making Quick Response Code and serial number mark
Know symbol recognition methods.The present invention is capable of identify that the Quick Response Code on various car plate, has adaptivity
Strong advantage.
Technical scheme: anti-counterfeiting license plate making Quick Response Code and serial number identifier identification
Method, comprises the following steps:
A, car plate insert in draw-in groove, and photoelectric sensor detects that car plate sends photoelectric sensor letter
Number；
After b, control system receive photo-sensor signal, open light source controller, by light
Source controller controls bar shaped light source works, and gives tacit consent to the exposure parameter setting camera with blue board；
After c, camera set, use camera that Quick Response Code specific region carries out the real-time many of image
Frame gathers, and terminates, obtain image sets A after gathering some two field pictures；
D, control system take the Quick Response Code specific region scope gray scale on the image in image sets A
The average of value, and average is compared with the marginal value of setting；If average is more than marginal value, then control
System processed sets camera with the exposure parameter of yellow card or person who is not a member of any political party, is then back to step c；If average
Less than or equal to marginal value, then read the 1st two field picture in image sets A；The exposure of described yellow card
Optical parameter is identical with the exposure parameter of person who is not a member of any political party；
E, to read 1 two field picture carry out denoising, binary conversion treatment and stretch processing,
Obtain image B；
F, control system judge that the picture quality of image B is the most qualified, if picture quality is qualified,
Then obtain the 2 D code information in image B by Quick Response Code algorithm, obtain 2 D code information C；If
Picture quality is defective, then judge whether image B is the last frame image in image sets A,
The most then control system cannot read Quick Response Code power cut-off, if it is not, then read image
Next frame image in group A, is then back to step e；
2 D code information C is sent to host computer by g, control system, and host computer gives to press board machine
Allow the instruction of operation.
In aforesaid anti-counterfeiting license plate making Quick Response Code and serial number identifier recognition methods, described
Some two field pictures in step c are 20 two field pictures.
In aforesaid anti-counterfeiting license plate making Quick Response Code and serial number identifier recognition methods, described
Control system is industrial camera IO control line.
In aforesaid anti-counterfeiting license plate making Quick Response Code and serial number identifier recognition methods, described
Quick Response Code algorithm in step f is that the Quick Response Code utilizing edge to strengthen reads algorithm.
In aforesaid anti-counterfeiting license plate making Quick Response Code and serial number identifier recognition methods, described
Quick Response Code specific region is the region limited in the required standard of the Ministry of Public Security.
In aforesaid anti-counterfeiting license plate making Quick Response Code and serial number identifier recognition methods, described
The picture quality judging image B in step is the most qualified is, according to the Quick Response Code in image B
Quick Response Code is positioned by finger URL, if Quick Response Code positions successfully, picture quality is qualified, if two
It is defective that dimension code positions unsuccessful then picture quality.
Compared with prior art, the present invention devises the anti-counterfeiting license plate making that a kind of adaptivity is strong
With Quick Response Code and serial number identifier recognition methods, the car of different size can be installed by draw-in groove
Board, and facilitate the Quick Response Code on the car plate of collected by camera different size；Come by light source controller
Control the opening and closing of strip source, additionally it is possible to control the brightness of strip source as required,
It is suitable for different use environment；Set camera by control system with the exposure parameter of blue board, adopt
After collection image, the average taking Quick Response Code specific region scope gray value compares with marginal value, in mistake
Can automatically revise the exposure parameter of camera during exposure (i.e. average be more than marginal value), adjust to
The exposure parameter (yellow card is identical with the exposure parameter of person who is not a member of any political party) of yellow card or person who is not a member of any political party, adopts again
Collection image such that it is able to the Quick Response Code identification of blue board, yellow card and person who is not a member of any political party be applicable to car plate,
Not only increase accuracy of identification, but also improve adaptivity.Additionally, the present invention is by adopting
Collect 20 two field pictures to be prevented from single acquisition and go wrong, improve Quick Response Code accuracy of identification；Logical
Cross the Quick Response Code utilizing edge to strengthen and read algorithm, it is possible to improve accuracy of identification further.Therefore,
The present invention can not only identify the Quick Response Code on various car plate, has the advantage that adaptivity is strong,
Also improve accuracy of identification.
Accompanying drawing explanation
Fig. 1 is the workflow diagram of the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further illustrated, but is not intended as the present invention
The foundation limited.
Embodiment.Anti-counterfeiting license plate making Quick Response Code and serial number identifier recognition methods, including
Following steps:
A, car plate insert in draw-in groove, and photoelectric sensor detects that car plate sends photoelectric sensor letter
Number；
After b, control system receive photo-sensor signal, open light source controller, by light
Source controller controls bar shaped light source works, and gives tacit consent to the exposure parameter setting camera with blue board；
After c, camera set, use camera that Quick Response Code specific region carries out the real-time many of image
Frame gathers, and terminates, obtain image sets A after gathering some two field pictures；
D, control system take the Quick Response Code specific region scope gray scale on the image in image sets A
The average of value, and average is compared with the marginal value of setting；If average is more than marginal value, then control
System processed sets camera with the exposure parameter of yellow card or person who is not a member of any political party, is then back to step c；If average
Less than or equal to marginal value, then read the 1st two field picture in image sets A；The exposure of described yellow card
Optical parameter is identical with the exposure parameter of person who is not a member of any political party；
E, 1 two field picture read is carried out denoising, binary conversion treatment and stretch processing (goes
Make an uproar the conventional treatment method that process, binary conversion treatment and stretch processing be in image procossing),
Obtain image B；
F, control system judge that the picture quality of image B is the most qualified, if picture quality is qualified,
Then obtain the 2 D code information in image B by Quick Response Code algorithm, obtain 2 D code information C；If
Picture quality is defective, then judge whether image B is the last frame image in image sets A,
The most then control system cannot read Quick Response Code power cut-off, if it is not, then read image
Next frame image in group A, is then back to step e；
2 D code information C is sent to host computer by g, control system, and host computer gives to press board machine
Allow the instruction of operation.
Some two field pictures in described step c are 20 two field pictures；Described control system is industry
Camera IO control line；Quick Response Code algorithm in described step f is the two dimension utilizing edge to strengthen
Code reads algorithm；Described Quick Response Code specific region is the district limited in the required standard of the Ministry of Public Security
Territory；The picture quality judging image B in described step is the most qualified is, according to image B
In Quick Response Code finger URL Quick Response Code is positioned, if Quick Response Code positions successfully, picture quality
Qualified, if Quick Response Code location is unsuccessful, picture quality is defective.
Wherein, the exposure parameter of yellow card and the exposure parameter of person who is not a member of any political party are identical；In like manner, in order to be suitable for
In new forms of energy car plate, additionally it is possible to set according to car plate green after the car plate of white green gradient color and front Huang
The associated critical value of the fixed average for comparing Quick Response Code specific region scope gray value, same to step
D, according to comparable situation by control system with the exposure parameter of white green gradient color car plate or front Huang
The exposure parameter of rear green car plate sets camera.The exposure that the car plate of above-mentioned different colours is corresponding is joined
Number is conventional setting.
Claims (6)
1. anti-counterfeiting license plate making Quick Response Code and serial number identifier recognition methods, its feature exists
In, comprise the following steps:
A, car plate insert in draw-in groove, and photoelectric sensor detects that car plate sends photoelectric sensor letter
Number；
After b, control system receive photo-sensor signal, open light source controller, by light
Source controller controls bar shaped light source works, and gives tacit consent to the exposure parameter setting camera with blue board；
After c, camera set, use camera that Quick Response Code specific region carries out the real-time many of image
Frame gathers, and terminates, obtain image sets A after gathering some two field pictures；
D, control system take the Quick Response Code specific region scope gray scale on the image in image sets A
The average of value, and average is compared with the marginal value of setting；If average is more than marginal value, then control
System processed sets camera with the exposure parameter of yellow card or person who is not a member of any political party, is then back to step c；If average
Less than or equal to marginal value, then read the 1st two field picture in image sets A；
E, to read 1 two field picture carry out denoising, binary conversion treatment and stretch processing,
Obtain image B；
F, control system judge that the picture quality of image B is the most qualified, if picture quality is qualified,
Then obtain the 2 D code information in image B by Quick Response Code algorithm, obtain 2 D code information C；If
Picture quality is defective, then judge whether image B is the last frame image in image sets A,
The most then control system cannot read Quick Response Code power cut-off, if it is not, then read image
Next frame image in group A, is then back to step e；
2 D code information C is sent to host computer by g, control system, and host computer gives to press board machine
Allow the instruction of operation.
Anti-counterfeiting license plate making Quick Response Code the most according to claim 1 and serial number mark
Symbol recognition methods, it is characterised in that: the some two field pictures in described step c are 20 two field pictures.
Anti-counterfeiting license plate making Quick Response Code the most according to claim 1 and serial number mark
Symbol recognition methods, it is characterised in that: described control system is industrial camera IO control line.
Anti-counterfeiting license plate making Quick Response Code the most according to claim 1 and serial number mark
Symbol recognition methods, it is characterised in that: the Quick Response Code algorithm in described step f is for utilizing edge to increase
Strong Quick Response Code reads algorithm.
Anti-counterfeiting license plate making Quick Response Code the most according to claim 1 and serial number mark
Symbol recognition methods, it is characterised in that: described Quick Response Code specific region is the required standard of the Ministry of Public Security
The region of middle restriction.
6. make according to the anti-counterfeiting license plate described in any claim in claim 1 to 5 and use
Quick Response Code and serial number identifier recognition methods, it is characterised in that: the judgement figure in described step
As the picture quality of B is the most qualified it is, according to the Quick Response Code finger URL in image B to Quick Response Code
Positioning, if Quick Response Code positions successfully, picture quality is qualified, if Quick Response Code location is unsuccessful
Then picture quality is defective.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610335477.4A CN105976001B (en) | 2016-05-19 | 2016-05-19 | Anti-counterfeiting license plate making Quick Response Code and serial number identifier recognition methods |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610335477.4A CN105976001B (en) | 2016-05-19 | 2016-05-19 | Anti-counterfeiting license plate making Quick Response Code and serial number identifier recognition methods |
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| Publication Number | Publication Date |
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| CN105976001A true CN105976001A (en) | 2016-09-28 |
| CN105976001B CN105976001B (en) | 2018-08-03 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
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| 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 |
| US20110042462A1 (en) * | 2008-03-28 | 2011-02-24 | Pips Technology Limited | Vehicle identification system |
| 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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| 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 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| Publication number | Publication date |
|---|---|
| CN105976001B (en) | 2018-08-03 |
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