CN104658265B - System for recognizing vehicle crossing full line and changing lanes at traffic intersection - Google Patents
System for recognizing vehicle crossing full line and changing lanes at traffic intersection Download PDFInfo
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- CN104658265B CN104658265B CN201510101414.8A CN201510101414A CN104658265B CN 104658265 B CN104658265 B CN 104658265B CN 201510101414 A CN201510101414 A CN 201510101414A CN 104658265 B CN104658265 B CN 104658265B
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
- G08G1/0175—Detecting movement of traffic to be counted or controlled identifying vehicles by photographing vehicles, e.g. when violating traffic rules
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/50—Context or environment of the image
- G06V20/56—Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
- G06V20/58—Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads
- G06V20/584—Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads of vehicle lights or traffic lights
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Abstract
The invention relates to a system for recognizing a vehicle crossing a full line and changing lanes at a traffic intersection. The system comprises a mobile hard disk, an AT89C51 single chip microcomputer, image recognition equipment and high-definition camera equipment, wherein full line image features of the traffic intersection are prestored in the mobile hard disk; the high-definition camera equipment collects images of the traffic intersection to acquire two intersection images at an interval of preset time; the image recognition equipment is connected with the high-definition camera equipment and the mobile hard disk respectively; the two intersection images are processed based on the full line image features respectively; the AT89C51 single chip microcomputer is connected with the image recognition equipment; whether the vehicle crossing the full line and changing the lanes exists at the traffic intersection is determined based on an image processing result. The violation behavior of full line crossing and lane changing of the vehicle at the traffic intersection can be effectively detected, and important reference data are provided for law enforcement of a road traffic control department.
Description
Technical field
The present invention relates to traffic monitoring field, more particularly, to a kind of positioned at traffic intersection across solid line and road
Vehicle identification system.
Background technology
Prior art detects to the act of violating regulations of automobile driver and is concentrated mainly on two aspects, one
Whether aspect is whether the corresponding passing rules of traffic signal violation lamp, for example, if make a dash across the red light, rush
Green light and whether cross driving dead line etc., on the other hand concentrates on vehicle interior personnel's act of violating regulations
Detection, for example whether wear safety belt, whether looking after children and just sit back and wait in copilot.However, for
Driver drives vehicle and but lacks effective detection method in traffic intersection across the act of violating regulations of solid line,
In fact, above-mentioned act of violating regulations because upset travel order, run counter to road traffic traveling fairness,
Easily cause major accident because trying to be the first and have more hazardness.
In prior art, across the detection of solid line behavior, backwardness is still adopted to the vehicle of traffic intersection
Manual detection mode, arranges a traffic-police in each traffic intersection, regularly to through traffic
Each vehicle at crossing carries out naked eyes and identifies, comes finding to have vehicle to drive to solid line region
When switchback is changed trains, go forward immediately inquiry registered vehicle information, the number-plate number of such as vehicles peccancy,
Realize the punishment to vehicles peccancy driver.Obviously, this detection mode excessively depends on manually, its
Efficiency and accuracy are greatly affected.At present, still there is no corresponding effective electron detection meanss.
Accordingly, it would be desirable to described identifying system across solid line and road vehicle identification system, can be set up by one kind
In monitored traffic intersection, vehicle is had across solid line behavior using detection of electrons means automatic identification
Vehicles peccancy and corresponding license board information, it is to avoid manual intervention, improve identification accuracy and reality
Shi Xing.
Content of the invention
In order to solve the above problems, the invention provides a kind of positioned at traffic intersection across solid line and road car
Identifying system, carries out image acquisition to obtain using high-definition camera equipment priority to described traffic intersection
Two width the image of crossings of interval Preset Time, the real diagram based on traffic intersection is two as described in feature identification
The same vehicle of different traffic aisles is occurred in width the image of crossing, and using targetedly OCR
The number-plate number of vehicle that recognizer acquisition recognizes, realize to across solid line and road act of violating regulations pure
Electronic recognition.
According to an aspect of the present invention, there is provided a kind of positioned at traffic intersection across solid line and road vehicle know
Other system, described identifying system include portable hard drive, AT89C51 single-chip microcomputer, image recognition apparatus and
High-definition camera equipment, described portable hard drive has prestored the solid line characteristics of image of traffic intersection, described high definition
Picture pick-up device carries out image acquisition to obtain two width crossings of interval Preset Time to described traffic intersection
Image, described image identification equipment is connected respectively with described high-definition camera equipment and described portable hard drive,
Image procossing is carried out to described two width the image of crossings respectively based on described solid line characteristics of image, described
AT89C51 single-chip microcomputer is connected with described image identification equipment, determines institute based on described image result
State traffic intersection and whether there is across solid line and road vehicle.
More specifically, across solid line and in road vehicle identification system, also wrapping positioned at traffic intersection described
Include：Luminance sensor, on described high-definition camera equipment, for detecting described high-definition camera equipment
The ambient brightness of surrounding；Lighting source, on described high-definition camera equipment, for for described
The image acquisition provided auxiliary illumination of high-definition camera equipment；User input device, for according to user's
Operation, input Preset Time, solid line upper limit gray threshold and solid line lower limit gray threshold, described solid line
Upper limit gray threshold and described solid line lower limit gray threshold are used for the solid line in image and background separation；
Wireless communication interface, sets up two-way wireless communication link with the control of traffic and road platform of far-end, is used for
Receive the control instruction of described control of traffic and road platform wireless transmission；Described portable hard drive and described use
Family input equipment connects, for receiving and storing described Preset Time, described solid line upper limit gray threshold
With described lower limit gray threshold；Described high-definition camera equipment is a CMOS vision sensor, described two
The resolution of width the image of crossing is all 1920 × 1080, and described two width the image of crossings are according to the time of collection
Order is divided in front the image of crossing with rear the image of crossing；Described image identification equipment is taken the photograph with described high definition
As equipment and described portable hard drive connect respectively, described image identification equipment includes Image semantic classification list
Unit, solid line region segmentation unit, vehicle feature recognition unit and vehicle match unit, described image is pre-
Processing unit is connected with described high-definition camera equipment, for will be in front the image of crossing with rear the image of crossing
Carry out Image semantic classification respectively, to obtain in front pretreatment image with rear pretreatment image, described figure
Strengthen as pretreatment includes contrast, wavelet filtering and gray processing are processed, described solid line region segmentation list
Unit is connected with described image pretreatment unit and described portable hard drive, respectively by described in front pretreatment figure
Picture between described solid line upper limit gray threshold and described solid line lower limit gray threshold for the gray value in picture
Element identify and form multiple in front solid line sub-pattern, according to the plurality of in front solid line sub-pattern described
The position in front pretreatment image from described cut out front pretreatment image multiple in front solid line
The traffic aisle of area image, the plurality of quantity in front solid line area image and described traffic intersection
Quantity identical, each front solid line area image correspond to a traffic aisle, also by described rear
In pretreatment image, gray value is in described solid line upper limit gray threshold and described solid line lower limit gray threshold
Between pixel identify and form multiple in rear solid line sub-pattern, according to the plurality of in rear solid line subgraph
Case described the position in rear pretreatment image from described cut out rear pretreatment image multiple
In rear solid line area image, the plurality of quantity in rear solid line area image and described traffic intersection
The quantity of traffic aisle is identical, and each corresponds to a traffic aisle in rear solid line area image, described
Vehicle feature recognition unit is connected with described solid line region segmentation unit, identifies each in front solid region
The feature of the multiple vehicles in area image, as multiple vehicle in front features, identifies each in rear solid line
The feature of the multiple vehicles in area image is as multiple in rear vehicle feature, described vehicle match unit
It is connected with described vehicle feature recognition unit, when two traffic aisles of presence, one of traffic aisle
Corresponding front solid line area image and another traffic aisle corresponding in rear solid line area image
When there are identical vehicle characteristics, led in another traffic described based on default OCR recognizer
The corresponding number-plate number identifying the vehicle with same vehicle feature in rear solid line area image in road
Using as the number-plate number violating the regulations output；Described AT89C51 single-chip microcomputer and described image identification equipment, institute
State luminance sensor, described lighting source, described wireless communication interface, described portable hard drive and described
High-definition camera equipment connects respectively, and described AT89C51 single-chip microcomputer is based on described in built-in Timer Controlling
High-definition camera equipment gathers described two width the image of crossings according to the interval of described Preset Time, by described two
Width the image of crossing is sent to described image identification equipment to carry out image procossing, receives described image identification
The number-plate number violating the regulations of equipment output, described AT89C51 single-chip microcomputer is also based on described ambient brightness and controls
The brightness of the floor light of described lighting source；Wherein, described wireless communication interface receives described breaking rules and regulations
The number-plate number, and the described number-plate number violating the regulations is wirelessly sent to described control of traffic and road platform；Institute
State image pre-processing unit, described solid line region segmentation unit, described vehicle feature recognition unit and institute
State vehicle match unit to be respectively adopted the fpga chip of different model to realize.
More specifically, across solid line and in road vehicle identification system, also wrapping positioned at traffic intersection described
Include：Display device, is connected with described AT89C51 single-chip microcomputer, shows described car plate violating the regulations for real-time
Number.
More specifically, described positioned at traffic intersection across solid line and in road vehicle identification system, described
Display device is LCDs, on the cross bar above described traffic intersection.
More specifically, described positioned at traffic intersection across solid line and in road vehicle identification system, described
AT89C51 single-chip microcomputer controls the brightness of the floor light of described lighting source based on described ambient brightness
Including：The brightness adjusting the floor light of described lighting source makes the floor light of described lighting source
Brightness be inversely proportional to described ambient brightness.
More specifically, described positioned at traffic intersection across solid line and in road vehicle identification system, described
Luminance sensor, described high-definition camera equipment and described lighting source are all located above described traffic intersection
Cross bar on.
Brief description
Below with reference to accompanying drawing, embodiment of the present invention is described, wherein：
Fig. 1 be according to embodiment of the present invention positioned at traffic intersection across solid line and road vehicle know
The block diagram of other system.
Specific embodiment
Below with reference to accompanying drawings to the present invention positioned at traffic intersection across solid line and road vehicle identification system
The embodiment of system is described in detail.
Before the vehicle of current traffic intersection waits dead line, in order to prevent each traffic aisle
Vehicle toggles passage and causes the chaotic even major accident of traffic order, control of traffic and road department
One solid line region typically can be set, and described solid line region is a rectangular area, by peripheral four
Rectilinear(-al), inside rectangular area, the quantity according to traffic aisle waits cut-off with vertically described vehicle
The direction of line divides many sub- rectangular areas, and each sub- rectangular area corresponds to a traffic aisle, hand over
Circulation passage potentially includes left-hand bend passage, right-hand bend passage, straight trip passage and u-turn passage etc..
Before vehicle enters the rectangular area of traffic intersection, can be led in multiple traffic by for a flash
Flexibly switch in road, but once carrying out described rectangular area, if carrying out the switching of traffic aisle again,
Forbidden act of violating regulations will be regarded as, certain punishment may be in.However, prior art
Middle lack for traffic intersection across solid line and road act of violating regulations effective electron means of identification, and can only
Using more original artificial naked eyes recognition mode, this artificial mode is except recognition efficiency is not high, real
Outside the shortcoming of when property difference, also take up a large amount of originally rare traffic administration manpowers, its cost of labor is relatively
High.
The present invention built a kind of positioned at traffic intersection across solid line and road vehicle identification system, its identification
Principle is as follows：Successively two width images are shot to traffic intersection, the characteristics of image based on solid line is to each width
Image division multiple traffic aisle image, when two traffic aisles of presence, one of traffic aisle pair
That answers deposits with another traffic aisle is corresponding in front traffic aisle image in rear traffic aisle image
In identical vehicle characteristics, based on default OCR recognizer in another traffic aisle described
Corresponding in rear traffic aisle image identification have same vehicle feature vehicle the number-plate number with
As the number-plate number violating the regulations output, the detection full automation of whole identifying system.
Fig. 1 be according to embodiment of the present invention positioned at traffic intersection across solid line and road vehicle know
The block diagram of other system, described identifying system includes：Portable hard drive 4, AT89C51 single-chip microcomputer
1st, image recognition apparatus 3 and high-definition camera equipment 2, described AT89C51 single-chip microcomputer 1 and described shifting
Dynamic hard disk 4, described image identification equipment 3 and described high-definition camera equipment 2 connect respectively, described figure
As identification equipment 3 is connected respectively with described portable hard drive 4 and described high-definition camera equipment 2.
Wherein, described portable hard drive 4 has prestored the solid line characteristics of image of traffic intersection, and described high definition is taken the photograph
As equipment 2 carries out image acquisition to obtain two width crossing figures of interval Preset Time to described traffic intersection
Picture, described image identification equipment 3 is based on described solid line characteristics of image respectively to described two width the image of crossings
Carry out image procossing, described AT89C51 single-chip microcomputer 1 determines described friendship based on described image result
Path mouth whether there is across solid line and road vehicle.
Then, continue to the present invention positioned at traffic intersection across solid line and road vehicle identification system tool
Body structure is further detailed.
Described identifying system also includes：Luminance sensor, on described high-definition camera equipment 2, uses
In the ambient brightness detecting described high-definition camera equipment 2 surrounding；Lighting source, positioned at described height
On clear picture pick-up device 2, for the image acquisition provided auxiliary illumination for described high-definition camera equipment 2.
Described identifying system also includes：User input device, for the operation according to user, input is pre-
If time, solid line upper limit gray threshold and solid line lower limit gray threshold, described solid line upper limit gray threshold
It is used for the solid line in image and background separation with described solid line lower limit gray threshold.
Described identifying system also includes：Wireless communication interface, is built with the control of traffic and road platform of far-end
Vertical two-way wireless communication link, the control for receiving described control of traffic and road platform wireless transmission refers to
Order.
Described portable hard drive 4 is connected with described user input device, for receiving and storing described default
Time, described solid line upper limit gray threshold and described lower limit gray threshold.
Described high-definition camera equipment 2 be a CMOS vision sensor, described two width the image of crossings point
Resolution is all 1920 × 1080, and described two width the image of crossings are divided in Qian Lu according to the time sequencing of collection
Mouthful image and in rear the image of crossing.
Described image identification equipment 3 is connected respectively with described high-definition camera equipment 2 and described portable hard drive 4
Connect, described image identification equipment 3 includes image pre-processing unit, solid line region segmentation unit, vehicle
Feature identification unit and vehicle match unit, described image pretreatment unit and described high-definition camera equipment
2 connections, for carrying out Image semantic classification respectively in front the image of crossing with rear the image of crossing, to obtain
In front pretreatment image with rear pretreatment image, described image pretreatment include contrast strengthen,
Wavelet filtering and gray processing are processed.
Described solid line region segmentation unit and described image pretreatment unit and described portable hard drive 4 difference
Connect, by described in front pretreatment image gray value in described solid line upper limit gray threshold and described reality
Pixel between line lower limit gray threshold identify and form multiple in front solid line sub-pattern, according to described many
Individual in front solid line sub-pattern in described position in front pretreatment image from described in front pretreatment figure
As in cut out multiple in front solid line area image, the plurality of quantity in front solid line area image with
The quantity of the traffic aisle of described traffic intersection is identical, and each corresponds to one in front solid line area image
Traffic aisle, also by described in rear pretreatment image gray value in described solid line upper limit gray threshold and
Pixel between described solid line lower limit gray threshold identify and form multiple in rear solid line sub-pattern, according to
The plurality of in rear solid line sub-pattern in described position in rear pretreatment image from described rear pre-
Process cut out in image multiple in rear solid line area image, the plurality of in rear solid line area image
Quantity is identical with the quantity of the traffic aisle of described traffic intersection, and each is in rear solid line area image pair
Answer a traffic aisle.
Described vehicle feature recognition unit is connected with described solid line region segmentation unit, identify each
The feature of the multiple vehicles in front solid line area image, as multiple vehicle in front features, identifies each
The feature of the multiple vehicles in rear solid line area image is as multiple in rear vehicle feature.
Described vehicle match unit is connected with described vehicle feature recognition unit, leads to when there are two traffic
Road, one of traffic aisle is corresponding corresponding in front solid line area image and another traffic aisle
When there are identical vehicle characteristics in rear solid line area image, based on default OCR recognizer
In corresponding the identification in rear solid line area image of another traffic aisle described, there is same vehicle spy
The number-plate number of the vehicle levied is using as the number-plate number violating the regulations output.
Described AT89C51 single-chip microcomputer 1 and described image identification equipment 3, described luminance sensor, institute
State lighting source, described wireless communication interface, described portable hard drive 4 and described high-definition camera equipment 2
Connect respectively, described AT89C51 single-chip microcomputer 1 is set based on high-definition camera described in built-in Timer Controlling
Standby 2 gather described two width the image of crossings according to the interval of described Preset Time, by described two width crossing figures
As being sent to described image identification equipment 3 to carry out image procossing, receive described image identification equipment 3
The number-plate number violating the regulations of output, described AT89C51 single-chip microcomputer 1 is also based on described ambient brightness and controls institute
State the brightness of the floor light of lighting source.
Wherein, described wireless communication interface receives the described number-plate number violating the regulations, and by described car plate violating the regulations
Number and wireless is sent to described control of traffic and road platform；Described image pretreatment unit, described solid line
Region segmentation unit, described vehicle feature recognition unit and described vehicle match unit can be respectively adopted
The fpga chip of different model is realizing.
Wherein, described identifying system also includes：Display device, with described AT89C51 single-chip microcomputer 1
Connect, show the described number-plate number violating the regulations for real-time, described display device can be selected for LCDs,
On cross bar above described traffic intersection, it is bright that described AT89C51 single-chip microcomputer 1 is based on described environment
Degree controls the brightness of the floor light of described lighting source may include：Adjust the auxiliary of described lighting source
The brightness of illumination makes the brightness of floor light of described lighting source and described ambient brightness be inversely proportional to,
And alternatively, described luminance sensor, described high-definition camera equipment 2 and described lighting source all positions
On cross bar above the described traffic intersection.
In addition, single-chip microcomputer (Microcontrollers) is a kind of IC chip, it is to adopt super large
Scale integrated circuit technology is central processor CPU, the random access memory with data-handling capacity
RAM, read only memory ROM, multiple I/O mouth and the function such as interruption system, timer/counter
(may also include display driver circuit, pulse-width modulation circuit, analog multiplexer, A/D conversion
The circuit such as device) the little and perfect microcomputer system constitute is integrated on one piece of silicon chip,
Industrial control field is extensively applied.
From the eighties in last century, by 4 at that time, 8 single-chip microcomputers, development 300M till now
High-speed microprocessor.The use field of single-chip microcomputer is quite varied, such as intelligence instrument, real-time industry control,
Communication apparatus, navigation system, household electrical appliance etc..Various products have once used single-chip microcomputer, just can rise
To the effect making the updating and upgrading of a product, often titled with adjective " intelligent " before name of product, such as intelligence
Energy type washing machine etc..
Single-chip microcomputer is born in 1971, experienced SCM, MCU, SoC tri- megastage, early stage
SCM single-chip microcomputer is all 8 or 4.Wherein most successful is the 8051 of INTEL, hereafter exists
MCS51 Series MCU system has been developed on 8051.Single Chip Microcomputer (SCM) system based on this system is straight
Also widely using till now.The raising requiring with industrial control field, starts to occur in that 16
Single-chip microcomputer, but be not widely applied very much because cost performance is undesirable.With consumption after the nineties
Electronic product develops on a large scale, and singlechip technology has obtained huge raising.With INTEL i960 series especially
It is the extensive application of ARM series later, 32 single-chip microcomputers replace rapidly the height of 16 single-chip microcomputers
End status, and enter mainstream market.And the performance of traditional 8 single-chip microcomputers has also obtained rapidly carrying
Height, disposal ability improves hundreds times compared with the eighties.32 high-end Soc single-chip microcomputer dominant frequency are
Through more than 300MHz, performance directly chases after the application specific processor of the mid-90, and common model is dispatched from the factory
To 1 dollar, the model of most significant end also only has 10 dollars for price falling.
Contemporary Single Chip Microcomputer (SCM) system has no longer only been developed under bare machine environment and has been used, special embedding in a large number
Enter formula operating system to be widely used on the single-chip microcomputer of complete series.And as palm PC and mobile phone
The high-end single-chip microcomputer of core processing even can be directly using special Windows and Linux operation system
System.
AT89C51 is a kind of band 4K byte FLASH memory (FPEROM Flash
Programmable and Erasable Read Only Memory) low-voltage, high-performance CMOS 8
Bit microprocessor, also carries 2K byte Flash-Programmable erasable read-only memory.Single-chip microcomputer can
Erasable read only memorizer can be wiped 1000 times repeatedly.This device adopts ATMEL high density non-volatile
Memorizer manufacturing technology manufactures, mutually compatible with the MCS-51 instruction set of industrial standard and output pin.
Due to multi-functional 8 bit CPUs and flash memory group being combined in one single chip, ATMEL's
AT89C51 is a kind of efficient microcontroller, and AT89C2051 is a kind of its compact version.AT89C51
Single-chip microcomputer is that a lot of embedded control systems provide a kind of high and inexpensive scheme of motility.
Using the present invention positioned at traffic intersection across solid line and road vehicle identification system, for existing knowledge
The technical problem that other scheme is relatively artificial, detection efficiency is low and wastes time and energy, by analyzing traffic road
Mouthful solid line distribution shape, targetedly adopt multiple efficient image processing equipments realize to across
The discriminating of solid line vehicles peccancy, maintains the fairness of road driving effectively, it is to avoid robs behaviour therefore sends out
Raw, it is that the law enforcement of control of traffic and road department improves important evidence.
Although it is understood that the present invention is disclosed as above with preferred embodiment, but above-mentioned enforcement
Example is not limited to the present invention.For any those of ordinary skill in the art, without departing from
Under technical solution of the present invention ambit, the technology contents that the disclosure above all can be utilized are to the technology of the present invention
Scheme makes many possible variations and modification, or the Equivalent embodiments being revised as equivalent variations.Therefore,
Every content without departing from technical solution of the present invention, the technical spirit of the foundation present invention is to above example
Any simple modification, equivalent variations and the modification made, all still falls within technical solution of the present invention protection
In the range of.
Claims (1)
1. a kind of positioned at traffic intersection across solid line and road vehicle identification system, described identifying system bag
Include portable hard drive, AT89C51 single-chip microcomputer, image recognition apparatus and high-definition camera equipment, described movement
Hard disk has prestored the solid line characteristics of image of traffic intersection, and described high-definition camera equipment is to described traffic intersection
Carry out image acquisition with obtain interval Preset Time two width the image of crossings, described image identification equipment with
Described high-definition camera equipment and described portable hard drive connect respectively, based on described solid line characteristics of image respectively
Described two width the image of crossings are carried out with image procossing, described AT89C51 single-chip microcomputer is identified with described image
Equipment connects, and determines that described traffic intersection whether there is across solid line and road based on described image result
Vehicle；
Described identifying system also includes：
Luminance sensor, on described high-definition camera equipment, for detecting described high-definition camera equipment
The ambient brightness of surrounding；
Lighting source, on described high-definition camera equipment, for the figure for described high-definition camera equipment
As collection provided auxiliary illumination；
User input device, for the operation according to user, inputs Preset Time, solid line upper limit gray scale
Threshold value and solid line lower limit gray threshold, described solid line upper limit gray threshold and described solid line lower limit gray scale threshold
It is worth for by the solid line in image and background separation；
Wireless communication interface, sets up two-way wireless communication link with the control of traffic and road platform of far-end,
For receiving the control instruction of described control of traffic and road platform wireless transmission；
Described portable hard drive is connected with described user input device, during for receiving and store described default
Between, described solid line upper limit gray threshold and described lower limit gray threshold；
Described high-definition camera equipment is a CMOS vision sensor, the resolution of described two width the image of crossings
Rate is all 1920 × 1080, and described two width the image of crossings are divided at front crossing according to the time sequencing of collection
Image and in rear the image of crossing；
Described image identification equipment is connected respectively with described high-definition camera equipment and described portable hard drive, institute
State image recognition apparatus and include image pre-processing unit, solid line region segmentation unit, vehicle feature recognition
Unit and vehicle match unit, described image pretreatment unit is connected with described high-definition camera equipment, uses
In Image semantic classification will be carried out respectively in front the image of crossing with rear the image of crossing, to obtain at front pre- place
Reason image and in rear pretreatment image, described image pretreatment include contrast strengthen, wavelet filtering and
Gray processing is processed, and described solid line region segmentation unit is hard with described image pretreatment unit and described movement
Disk connects respectively, by described in front pretreatment image gray value in described solid line upper limit gray threshold and
Pixel between described solid line lower limit gray threshold identify and form multiple in front solid line sub-pattern, according to
The plurality of in front solid line sub-pattern in described position in front pretreatment image from described front pre-
Process cut out in image multiple in front solid line area image, the plurality of in front solid line area image
Quantity is identical with the quantity of the traffic aisle of described traffic intersection, and each is in front solid line area image pair
Answer a traffic aisle, also by described in rear pretreatment image gray value in described solid line upper limit gray scale
Pixel between threshold value and described solid line lower limit gray threshold identify and form multiple in rear solid line subgraph
Case, according to the plurality of in rear solid line sub-pattern in described position in rear pretreatment image from described
Rear pretreatment image cuts out multiple in rear solid line area image, the plurality of in rear solid line region
The quantity of image is identical with the quantity of the traffic aisle of described traffic intersection, and each is in rear solid line region
Image corresponds to a traffic aisle, described vehicle feature recognition unit and described solid line region segmentation unit
Connect, identify the feature of each multiple vehicle in front solid line area image as multiple in front truck
Feature, identify the feature of each multiple vehicle in rear solid line area image as multiple rear
Vehicle characteristics, described vehicle match unit is connected with described vehicle feature recognition unit, when presence two
Traffic aisle, one of traffic aisle corresponding in front solid line area image with another traffic aisle
Corresponding when there are identical vehicle characteristics in rear solid line area image, known based on default OCR
Other algorithm another traffic aisle described corresponding in rear solid line area image identification have identical
The number-plate number of the vehicle of vehicle characteristics is using as the number-plate number violating the regulations output；
Described AT89C51 single-chip microcomputer and described image identification equipment, described luminance sensor, described photograph
Mingguang City source, described wireless communication interface, described portable hard drive and described high-definition camera equipment connect respectively,
Described AT89C51 single-chip microcomputer is based on high-definition camera equipment described in built-in Timer Controlling according to described
The interval of Preset Time gathers described two width the image of crossings, described two width the image of crossings is sent to described
Image recognition apparatus, to carry out image procossing, receive the license plate number violating the regulations that described image identifies equipment output
Code, described AT89C51 single-chip microcomputer is also shone based on the auxiliary that described ambient brightness controls described lighting source
Bright brightness；
Wherein, described wireless communication interface receives the described number-plate number violating the regulations, and by described car plate violating the regulations
Number and wireless is sent to described control of traffic and road platform；
Wherein, described image pretreatment unit, described solid line region segmentation unit, described vehicle characteristics
Recognition unit and described vehicle match unit are respectively adopted the fpga chip of different model to realize.
Priority Applications (1)
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| CN106251638A (en) * | 2016-09-19 | 2016-12-21 | 昆山市工研院智能制造技术有限公司 | Channelizing line violation snap-shooting system |
| CN108280438B (en) * | 2018-02-02 | 2019-02-26 | 浙江东吴宏伟网络技术有限公司 | Entry region driver identity identifying system |
| CN108509906B (en) * | 2018-03-30 | 2022-02-08 | 长安大学 | Double-threshold Radon identification method for line light point capture of unmanned aerial vehicle aerial photography roadbed |
| CN109902689B (en) * | 2019-04-25 | 2021-06-29 | 深圳成谷科技有限公司 | Vehicle license plate recognition method and system |
| CN113139926A (en) * | 2020-01-01 | 2021-07-20 | 高雪亚 | Dynamic detection system for competition field boundary line |
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| CN101593422B (en) * | 2009-06-15 | 2010-12-01 | 无锡骏聿科技有限公司 | Traffic violation detection method based on video tracking and pattern recognition |
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