CN109285355A - A kind of front and back candid photograph traffic cameras system - Google Patents
A kind of front and back candid photograph traffic cameras system Download PDFInfo
- Publication number
- CN109285355A CN109285355A CN201811226314.8A CN201811226314A CN109285355A CN 109285355 A CN109285355 A CN 109285355A CN 201811226314 A CN201811226314 A CN 201811226314A CN 109285355 A CN109285355 A CN 109285355A
- Authority
- CN
- China
- Prior art keywords
- vehicle
- picture
- unit
- track
- traffic cameras
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- 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
Abstract
The present invention provides a kind of front and backs to capture traffic cameras system, comprising: camera unit, vehicle tracking unit, trajectory analysis unit, snap unit violating the regulations, picture recognition unit, record processing unit.Traditional traffic cameras can only capture vehicle from the front or behind of vehicle, can not see the picture at vehicle front and rear simultaneously.The act of violating regulations inconsistent for license plate before and after vehicle can not effectively be collected evidence.It captures traffic cameras and may be implemented to capture vehicle from vehicle up direction, front both direction in front and back, the record captured can see the forward and backward license plate number of vehicle simultaneously, it can effectively be collected evidence for abnormal license plate, such inconsistent act of violating regulations of front and back license plate, provide more convictive evidence for law enfrocement official.
Description
Technical field
The invention belongs to traffic cameras technical fields, capture traffic cameras system more particularly, to a kind of front and back.
Background technique
Traffic cameras is a kind of intelligent video camera front end, it is integrated with audio-video collection, intelligently encoding compression and
The technologies such as network transmission have reliable performance using embedded OS and high performance hardware processing platform, stable etc. excellent
Point.
Traffic cameras is a kind of highly integrated product, is integrated with camera chain, intelligent analysis system, communication system
System, peripheral hardware control system.Several big systems are linked together by MCU microcontroller, are controlled by MCU and are realized that institute is functional normal
It realizes.
Existing traffic cameras is equipped with the installation position of video camera higher due to the limitation by Video Analysis Technology
It is required that needing to be mounted on vehicle front in order to be clearly seen that the license plate on vehicle head, with this for bayonet traffic cameras
Track of vehicle is analyzed, vehicle characteristic information is extracted.Need to be mounted on rear of vehicle for electronic police traffic cameras so as to clear
Vehicle tail license plate is seen by Chu, analyzes track of vehicle with this, extracts vehicle characteristic information.Both traffic cameras are all at present
Can not be inconsistent to front and back license plate, abnormal such act of violating regulations of license plate is effectively collected evidence.
Summary of the invention
In view of this, the present invention is directed to propose traffic cameras system is captured in a kind of front and back, to solve above-mentioned background technique
In the problem of mentioning.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of front and back candid photograph traffic cameras system, including sequentially connected camera unit, vehicle tracking unit, track
Analytical unit, snap unit violating the regulations, picture recognition unit and record processing unit；
The camera unit includes two, is respectively arranged at vehicle up direction and front, is sent for acquiring video data
To vehicle tracking unit；
The vehicle tracking unit therefrom identifies vehicle for analyzing the video data that camera unit transmits, with
Track is to the track of vehicle；
The trajectory analysis unit judges whether vehicle breaks rules and regulations for analyzing track of vehicle；
The snap unit violating the regulations is used in setting position and captures picture；
The picture recognition unit extracts the information of vehicle for identifying to the picture of candid photograph；
The record processing unit is used to integrate the information of vehicles of preceding several units picture captured and identification, will
The single picture of candid photograph is synthesized, and the information of vehicles that user needs is added on picture, is generated one and is completely broken rules and regulations
Record uploads platform.
Further, the Vehicle tracing unit carries out recognition and tracking to vehicle using track algorithm, wherein tracking
Algorithm carries out the identification of vehicle characteristics using Roberts operator, and Roberts operator is a kind of to find side using local difference operator
The operator of edge:
G (x, y)=[sqrt (f (x, y))-sqrt (f (x-1, y-1))] * * 2+ [sqrt (f (x, y+1))+sqrt (f (x+
1,y))]**2
Wherein, f (x, y), f (x+1, y), f (x, y+1) and f (x+1, y+1) are respectively the coordinate in 4 fields, and be have it is whole
The input picture of number pixel coordinate, Robert operator is 2x2 operator template, and each of image point is all rolled up with this 2 cores
Product, vehicle pictures can extract vehicle vehicle characteristics by Roberts operator.
Further, further include setting in the road between one line of candid photograph, the snap unit violating the regulations track of vehicle with
The first picture is captured when one line of the candid photograph intersection in lane.
Further, it is arranged in that the video camera of vehicle up direction has just appeared in the visual field in vehicle and vehicle tail just will be from
Two pictures are captured when opening the visual field respectively, track of vehicle is obtained by track identification algorithm, track and the position for capturing line are made
Compare performance candid photograph.
Further, the synthesis and superposition of picture are realized by the interface for calling Hisi packaged.
Compared with the existing technology, a kind of front and back of the present invention is captured traffic cameras system and is had the advantage that
(1) two camera installation locations of camera unit of the present invention can adapt to various rings in any combination
The needs in border
(2) the Data Synthesis scheme of record processing unit of the present invention, in addition to can use license plate number progress
With outer record matching can also be carried out by any unique mark；
(3) present invention by two video cameras and overlooks multi-view image processing technique, and it is inconsistent to solve front and back license plate,
The problem that license plate waits the evidence obtaining of such act of violating regulations difficult extremely.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of front and back candid photograph traffic cameras system schematic described in the embodiment of the present invention；
Fig. 2 is candid photograph effect diagram described in the embodiment of the present invention.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can
To explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figs. 1-2, traffic cameras is captured in front and back of the invention, comprising: video camera, vehicle tracking unit, track
Analytical unit, snap unit of breaking rules and regulations, picture recognition unit record processing unit.Video camera is sent to vehicle for video data is acquired
Tracking cell carries out trajectory analysis, and trajectory analysis unit can analyze track after obtaining trajectory analysis result, judges the vehicle
Whether break rules and regulations, candid photograph will be will do it for violation vehicle, identifies, obtain the candid photograph picture and characteristic information of vehicle, two are taken the photograph
Respective candid photograph data are issued host respectively by camera, and host can be matched according to the license plate number of identification, be combined into one it is complete
Complete record.
In the present embodiment, traffic cameras is captured in front and back, comprising: two video cameras, multiple-camera Data Synthesis scheme.Two
Platform video camera, comprising: the bayonet camera positioned at front, bayonet camera are led to by track identification algorithm keeps track track of vehicle
The each vehicle crossed on the recognizer road has an one's own track.When track is intersected with one line of candid photograph in lane
When can capture the first picture.Motor vehicle front end picture is arrived in order to understand to capture, Integrated Service Digital Network is captured and often configures and road
It is intermediate.The picture of candid photograph can be given algoritic module by the decometer mouth camera, and algoritic module can be obtained by Recognition Algorithm of License Plate
Coordinate of the license plate in picture, camera can pluck out the close up view of vehicle according to license plate position coordinates calling Hisi interface.It is located at
The electronic police video camera of top can grab respectively when vehicle has just appeared in the visual field and vehicle tail will just leave the visual field
Two pictures are clapped, this two picture is also to obtain track of vehicle by track identification algorithm, and track is done with the position for capturing line
Compare and is captured.Electronic police camera can will capture line configuration
It can be seen that the license plate number before and after motor vehicle.It gives the picture of candid photograph to algorithm and license plate number is identified by Recognition Algorithm of License Plate
And it compares it may determine that whether motor vehicle triggers the inconsistent act of violating regulations of front and back license plate, and by the vehicle on head and tail portion
The small figure of board takes small license plate by Hisi interface and is added to respectively headstock, and the tailstock is captured on picture.Vehicle tracing algorithm master
Roberts operator has been used to carry out the identification of vehicle characteristics, Roberts operator is a kind of utilization local difference operator searching side
The operator of edge:
G (x, y)=[sqrt (f (x, y))-sqrt (f (x-1, y-1))] * * 2+ [sqrt (f (x, y+1))+sqrt (f (x+
1,y))]**2
Wherein, f (x, y), f (x+1, y), f (x, y+1) and f (x+1, y+1) are respectively the coordinate in 4 fields, and be have it is whole
The input picture of number pixel coordinate.Robert operator is 2x2 operator template.Each of image point is all rolled up with this 2 cores
Product.Vehicle pictures can extract vehicle vehicle characteristics by Roberts operator.Multiple-camera Data Synthesis scheme, because same
The candid photograph picture of motor vehicle can be from two video cameras so the license plate number that can be recorded according to every of host carries out picture
Match, synthesize, the processing such as character adding generate a complete record.The synthesis of picture requires to call Hisi with being superimposed for character
Packaged interface is realized.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. traffic cameras system is captured in a kind of front and back, it is characterised in that: including sequentially connected camera unit, vehicle tracking
Unit, trajectory analysis unit, snap unit violating the regulations, picture recognition unit and record processing unit；
The camera unit includes two, is respectively arranged at vehicle up direction and front, is sent to vehicle for acquiring video data
Tracking cell；
The vehicle tracking unit therefrom identifies vehicle for analyzing the video data that camera unit transmits, and traces into
The track of vehicle；
The trajectory analysis unit judges whether vehicle breaks rules and regulations for analyzing track of vehicle；
The snap unit violating the regulations is used in setting position and captures picture；
The picture recognition unit extracts the information of vehicle for identifying to the picture of candid photograph；
The record processing unit is used to integrate the information of vehicles of preceding several units picture captured and identification, will capture
Single picture synthesized, and the information of vehicles that user needs is added on picture, generates a complete violating the regulations record
Upload platform.
2. traffic cameras system is captured in a kind of front and back according to claim 1, it is characterised in that: the track of vehicle with
Track unit carries out recognition and tracking to vehicle using track algorithm, wherein track algorithm carries out vehicle characteristics using Roberts operator
Identification, Roberts operator is a kind of operator that edge is found using local difference operator:
G (x, y)=[sqrt (f (x, y))-sqrt (f (x-1, y-1))] * * 2+ [sqrt (f (x, y+1))+sqrt (f (x+1,
y))]**2
Wherein, f (x, y), f (x+1, y), f (x, y+1) and f (x+1, y+1) are respectively the coordinate in 4 fields, and are with integer picture
The input picture of plain coordinate, Robert operator are 2x2 operator templates, and each of image point all does convolution, vehicle with this 2 cores
Picture can extract vehicle vehicle characteristics by Roberts operator.
3. traffic cameras system is captured in a kind of front and back according to claim 1, it is characterised in that: further include being arranged in road
One line of candid photograph among road captures first figure when one line of candid photograph of the snap unit violating the regulations in track of vehicle with lane intersects
Piece.
4. traffic cameras system is captured in a kind of front and back according to claim 3, it is characterised in that: be arranged in vehicle up direction
Video camera capture two pictures respectively when vehicle has just appeared in the visual field and vehicle tail will just leave the visual field, pass through rail
Mark recognizer obtain track of vehicle, by track with capture line position make comparisons performance candid photograph.
5. traffic cameras system is captured in a kind of front and back according to claim 1, it is characterised in that: the synthesis of picture and
Superposition is realized by the interface for calling Hisi packaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811226314.8A CN109285355A (en) | 2018-10-19 | 2018-10-19 | A kind of front and back candid photograph traffic cameras system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811226314.8A CN109285355A (en) | 2018-10-19 | 2018-10-19 | A kind of front and back candid photograph traffic cameras system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109285355A true CN109285355A (en) | 2019-01-29 |
Family
ID=65177682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811226314.8A Withdrawn CN109285355A (en) | 2018-10-19 | 2018-10-19 | A kind of front and back candid photograph traffic cameras system |
Country Status (1)
| Country | Link |
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| CN (1) | CN109285355A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110929676A (en) * | 2019-12-04 | 2020-03-27 | 浙江工业大学 | Deep learning-based real-time detection method for illegal turning around |
| CN112419740A (en) * | 2019-08-23 | 2021-02-26 | 杭州海康威视系统技术有限公司 | Vehicle state identification method and device |
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| CN103473926A (en) * | 2013-09-11 | 2013-12-25 | 无锡加视诚智能科技有限公司 | Gun-ball linkage road traffic parameter collection and rule breaking snapshooting system |
| CN105654733A (en) * | 2016-03-08 | 2016-06-08 | 博康智能网络科技股份有限公司 | Front and back vehicle license plate recognition method and device based on video detection |
| CN105893953A (en) * | 2016-03-30 | 2016-08-24 | 上海博康智能信息技术有限公司 | Method and system for detecting two license plates of one vehicle |
| US10018703B2 (en) * | 2012-09-13 | 2018-07-10 | Conduent Business Services, Llc | Method for stop sign law enforcement using motion vectors in video streams |
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2018
- 2018-10-19 CN CN201811226314.8A patent/CN109285355A/en not_active Withdrawn
Patent Citations (4)
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|---|---|---|---|---|
| US10018703B2 (en) * | 2012-09-13 | 2018-07-10 | Conduent Business Services, Llc | Method for stop sign law enforcement using motion vectors in video streams |
| CN103473926A (en) * | 2013-09-11 | 2013-12-25 | 无锡加视诚智能科技有限公司 | Gun-ball linkage road traffic parameter collection and rule breaking snapshooting system |
| CN105654733A (en) * | 2016-03-08 | 2016-06-08 | 博康智能网络科技股份有限公司 | Front and back vehicle license plate recognition method and device based on video detection |
| CN105893953A (en) * | 2016-03-30 | 2016-08-24 | 上海博康智能信息技术有限公司 | Method and system for detecting two license plates of one vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112419740A (en) * | 2019-08-23 | 2021-02-26 | 杭州海康威视系统技术有限公司 | Vehicle state identification method and device |
| CN110929676A (en) * | 2019-12-04 | 2020-03-27 | 浙江工业大学 | Deep learning-based real-time detection method for illegal turning around |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190129 |
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| WW01 | Invention patent application withdrawn after publication |