CN104809887A - Detecting method for vehicle converse running on expressway and automatic alarm device - Google Patents
Detecting method for vehicle converse running on expressway and automatic alarm device Download PDFInfo
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- CN104809887A CN104809887A CN201510198257.7A CN201510198257A CN104809887A CN 104809887 A CN104809887 A CN 104809887A CN 201510198257 A CN201510198257 A CN 201510198257A CN 104809887 A CN104809887 A CN 104809887A
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- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/056—Detecting movement of traffic to be counted or controlled with provision for distinguishing direction of travel
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Abstract
The invention discloses a detecting method for vehicle converse running on an expressway and an automatic alarm device. The automatic alarm device comprises an image collecting module, a vehicle converse running detecting module, an alarm blinking lamp, a data transmitting device, and a computer; and the image collecting module, the alarm blinking lamp and the data transmitting device are connected with the vehicle converse running detecting module, and the computer is connected with the data transmitting device. In order to improve the accuracy of the converse running detection, not only the previous frame is detected, but also M frames in the recent N frames are randomly selected for synthetic judgment, the converse running is judged only if the converse running is existent in X frames or more than X frames, the converse running alarm is sent, and the histogram feature and Fourier spectrum feature of the vehicle are combined to perform the multi-vehicle matching, so the matching accuracy is improved.
Description
Technical field
The present invention relates to the vehicle abnormality behavioral analysis technology of field of intelligent video surveillance, particularly relate to a kind of vehicle on expressway and to drive in the wrong direction detection method and autoalarm.
Background technology
Along with the development of China's traffic transporting technology, the traffic surveillance and control system of poor efficiency and aging traffic administration operation way cannot meet the needs of fast-developing traffic technique far away, and then become the bottleneck of restriction China traffic transporting technology development.Intelligent Video Surveillance Technology is simple as one, convenient, efficient, low cost, touchless monitoring technique, for vehicular traffic drive in the wrong direction, the behavior such as blocking causes traffic hazard good prevention effect.Intelligent Video Surveillance Technology is widely used in the field such as safeguard protection, alarm, magnitude of traffic flow monitoring, the no worker monitor of office space, the remote monitoring of machine room of modern transportation, transport, security protection, police reconnaissance, prison monitoring, valuables.
Intelligent Video Surveillance Technology mainly has following advantage:
1, integrated cost is low.Only need one-time investment, people just can be allowed to free from uninteresting, barren artificial monitoring, without the need to special messenger's nurse, only needing when there is abnormal alarm in monitoring, carrying out responding.In today of the day by day high enterprise of cost of labor, save a large number of input and daily expenses undoubtedly.
2, testing result is objective, reliable.Under manual supervisory mode, stare at monitored picture for a long time, supervisor is easily tired, numb to picture, and intelligent monitoring can get rid of the interference of this respect, once detect in picture have unusual condition, can send alarm in real time, to be convenient for people to timely response.
3, easy to use.As long as there is the place of network just can monitor, receives alerting signal, support that long-range and local live signal receives, support that the live signal of multiple spot, various ways receives.
4, monitoring video is kept on big capacity hard disk by intelligent monitoring technology, can call easily, stores and transport, can as the evidence of traffic violations.
Summary of the invention
For above-mentioned technical matters, the present invention proposes a kind of vehicle on expressway and to drive in the wrong direction detection method and autoalarm.
In order to solve the problems of the technologies described above, technical scheme of the present invention is as follows:
A kind of vehicle on expressway drives in the wrong direction autoalarm, comprises image capture module, vehicle drives in the wrong direction detection module, warning flashing lamp, data transmission device, computing machine;
Described image capture module, warning flashing lamp, data transmission device and the vehicle detection module that drives in the wrong direction is connected, and described computing machine is connected with data transmission device.
Further, the described vehicle frame of video of detection module to image capture module collection of driving in the wrong direction detects;
Described warning flashing lamp for receive described vehicle drive in the wrong direction detection module send signal, remind vehicular traffic;
Described data transmission device to drive in the wrong direction the video requency frame data of detection module for transmitting described vehicle;
Described computing machine is for showing, storing the video requency frame data transmitted by described data transmission device.
Further, also comprise warning device, described warning device controls to be used for sending alerting signal by computing machine.
A kind of vehicle on expressway drives in the wrong direction detection method, comprises the steps:
4.1) the vehicle detection module that drives in the wrong direction sets up rule of driving in the wrong direction: determine to need detect the polygonal region of vehicle, the direction of normal vehicle operation and allow vehicle to allow to depart from the maximum angle of normal travel direction;
4.2) moving vehicle is detected: to the background constructing mixture Gaussian background model of the frame of video that image capture module collects; By current frame image and background image subtraction, when threshold value is greater than certain value, think motion pixel, motion pixel is sorted out and obtains moving vehicle;
4.3) track of vehicle and morphological analysis:
A) travel through the vehicle of present frame, obtain the profile of vehicle, center of gravity, histogram and Fourier spectrum feature;
B) according to the position of vehicle at frame, calculate the position that vehicle may occur in previous frame, find all vehicles that in a frame of video, these positions exist;
If c) cannot vehicle be found, and the position residing for present frame vehicle is the position that vehicle enters surveyed area, then thinking that this normal vehicle operation appears at detects in scene, give overall unique reference number, add in normal tracking queue, continue the detection of next vehicle, forward step to a);
If d) cannot find vehicle, and present frame vehicle present position is the position that vehicle leaves surveyed area, then think that this vehicle may drive in the wrong direction and enter scene, give overall unique reference number, add and may drive in the wrong direction in vehicle platoon, forward step to a);
If e) cannot vehicle be found, and not at the edge of polygonal region, then think that vehicle is blocked or merges with other vehicles, put it in queue undetermined, do not change its label, wait for that next frame compares, forward step to a);
If f) find one or many cars, the then similarity of compute histograms similarity and Fourier spectrum feature, the similarity threshold of setting histogram similarity and Fourier spectrum feature, if there is no histogram similarity and Fourier spectrum characteristic similarity are greater than the vehicle of threshold value, then think and do not match, by the logical process not finding vehicle, forward step to a);
If g) have one or many cars eligible, then select the most similar vehicle, added in tracking queue, and give and label consistent before, calculate their relative position, if present frame vehicle is in retrograde position relative to previous frame, think that this car may exist retrograde.
Further, after step g), also comprise the steps: that the vehicle detection module that drives in the wrong direction analyzes the metamorphosis of vehicle, if the lasting tracking frame number of this vehicle is less than N frame, then think that historical track information is also not enough to confirm, forward step to a), if continue to follow the tracks of frame number to be more than or equal to N frame, random selecting M frame judges, as long as have more than X frame or X frame (X≤M≤N) to be in retrograde position, then think that Current vehicle exists to drive in the wrong direction, the vehicle detection module that drives in the wrong direction sends signal to described warning flashing lamp, reminds vehicular traffic.
beneficial effect of the present invention is: the present invention, in order to improve the accuracy rate of driving in the wrong direction and detecting, not only detects previous frame, also in nearest N frame, random selecting M frame carries out comprehensive descision, only have more than X frame or X frame to exist to drive in the wrong direction, be just judged as driving in the wrong direction, send retrograde alarm.The present invention carries out many vehicle match in conjunction with the histogram feature of vehicle and Fourier spectrum feature, improves the accuracy rate of coupling.The present invention judges to drive in the wrong direction in conjunction with the drive in the wrong direction change in location that occurs in process and the metamorphosis that causes due to the camera depth of field of vehicle, can eliminate the impact because noise produces preferably, improve the accuracy rate of detection.Local alarm and remote alarm combine by the present invention, when occurring driving in the wrong direction, send flashing lamp alarm, remind car to slow down, prevent collision, give the alarm to long-range assistant policeman simultaneously, to respond in time, and the picture that will drive in the wrong direction stores, as punishing justification.
Accompanying drawing explanation
Fig. 1 is overview flow chart of the present invention;
Fig. 2 is track of vehicle of the present invention and morphological analysis process flow diagram;
Fig. 3 is vehicle of the present invention retrograde detection autoalarm structural drawing.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described further.
Be that a kind of vehicle on expressway drives in the wrong direction autoalarm as shown in Figure 3, the vehicle on expressway autoalarm that drives in the wrong direction comprises: image capture module, vehicle drive in the wrong direction detection module, warning flashing lamp, data transmission device, computing machine and alarm speaker.Image capture module, warning flashing lamp, data transmission device and the vehicle detection module that drives in the wrong direction is connected, and described computing machine is connected with data transmission device, and alarm speaker is connected with computing machine.Above-mentioned image capture module and vehicle drive in the wrong direction detection module accessible site at camera internal.Camera after integrated connects by this alarm flashing lamp.When detecting that vehicle drives in the wrong direction, sending a signal to warning flashing lamp, sending retrograde alarm, be used for reminding vehicular traffic, there is vehicle and drives in the wrong direction in front; The video requency frame data of retrograde picture, by data transmission device, is transferred to computing machine by camera, and with the retrograde region of red block mark, provides retrograde alerting signal in the picture upper right corner.The vehicle that computing machine receives in the video requency frame data of described data transmission device transmission drives in the wrong direction picture, and show, store car drives in the wrong direction picture; And sending alerting signal by alarm speaker, prompting assistant policeman there occurs retrograde, takes appropriate measures.
Embodiment one:
As depicted in figs. 1 and 2, a kind of vehicle on expressway drives in the wrong direction detection method, and its constitute and function is described as follows:
(1) vehicle drive in the wrong direction detection module set up vehicle drive in the wrong direction rule:
Determine the quadrilateral area of vehicle detection, determine the direction of normal vehicle operation in quadrilateral surveyed area and determine to allow vehicle to allow to depart from the maximum angle of normal travel direction.
(2) moving vehicle is detected:
Be background constructing mixture Gaussian background model according to the frame of video that image capture module collects;
By current frame image and background image subtraction, when threshold value is greater than certain value, think motion pixel; Motion pixel is sorted out and obtains moving vehicle.
(3) track of vehicle and morphological analysis:
A) travel through the vehicle of present frame, obtain the profile of vehicle, center of gravity, histogram and Fourier spectrum feature; Because the speed of vehicle is limited, the frequency of collected by camera is 25 frames/s simultaneously, so the distance that vehicle moves between adjacent two frames within the specific limits;
B) according to the position of vehicle at present frame, calculate the position that vehicle may occur in previous frame, find all vehicles that in previous frame, these positions exist;
If c) cannot vehicle be found, and the position residing for present frame vehicle is the position that vehicle enters surveyed area, then thinking that this normal vehicle operation appears at detects in scene, this car and characteristic of correspondence thereof are added in tracking queue, and give overall unique reference number, continue the detection of next vehicle, forward to a);
If d) cannot vehicle be found, and present frame vehicle present position is the position that vehicle leaves surveyed area, then thinks that this vehicle may drive in the wrong direction and enter scene, this car and characteristic of correspondence thereof are added and may drive in the wrong direction in vehicle platoon, and give overall unique reference number, forward to a);
If e) cannot vehicle be found, and not at the edge in region, then think that vehicle is blocked or merges with other vehicles, put it in queue undetermined, do not change its label, wait for that next frame compares, forward to a);
If f) find one or many cars, then utilize Pasteur's distance to calculate the similarity of histogram similarity between the vehicle found and Fourier spectrum feature, the similarity threshold of setting histogram similarity and Fourier spectrum feature is 0.2, if there is no Pasteur's distance of histogram similarity and Fourier spectrum characteristic similarity vehicle of being less than 0.2, then think and do not match, by the logical process not finding vehicle, forward to a);
If g) have one or many cars eligible, then select the most similar vehicle, added in tracking queue, and give and label consistent before, calculate their relative position, if present frame vehicle is in retrograde position relative to previous frame, think that this car may exist retrograde, simultaneously, analyze the metamorphosis of vehicle, because there is the change of the depth of field in scene, so the change of vehicle form also can as strengthening the foundation judged of driving in the wrong direction, the relatively size of vehicle, from closely sailing toward long journey if driven in the wrong direction, then think that vehicle drives in the wrong direction in process, there is the trend diminished gradually, from far travelling toward near if driven in the wrong direction, then think that vehicle drives in the wrong direction in process, have and become large trend gradually, in order to improve the accuracy rate of detection, reduce wrong report, need to obtain more trace information and strengthen judgement of driving in the wrong direction, if the lasting tracking frame number of such as this car is less than 10 frames, then think that historical track information is also not enough to confirm, forward to a), if continue to follow the tracks of frame number to be more than or equal to 10 frames, random selecting 5 frame judges, as long as have more than 3 frames or 3 frames to be in retrograde position, then think that Current vehicle exists to drive in the wrong direction, the vehicle detection module that drives in the wrong direction sends signal to described warning flashing lamp, reminds vehicular traffic, and by video requency frame data by data transmission device transfer to computing machine be used for store and display, when running into retrograde situation, and send alerting signal by alarm speaker, prompting assistant policeman there occurs retrograde, take appropriate measures.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, without departing from the inventive concept of the premise; can also make some improvements and modifications, these improvements and modifications also should be considered as in scope.
Claims (5)
1. vehicle on expressway drives in the wrong direction an autoalarm, it is characterized in that, comprises image capture module, vehicle drives in the wrong direction detection module, warning flashing lamp, data transmission device, computing machine;
Described image capture module, warning flashing lamp, data transmission device and the vehicle detection module that drives in the wrong direction is connected, and described computing machine is connected with data transmission device.
2. a kind of vehicle on expressway according to claim 1 drives in the wrong direction detection method and autoalarm, it is characterized in that,
The frame of video of detection module to image capture module collection of driving in the wrong direction described vehicle detects;
Described warning flashing lamp for receive described vehicle drive in the wrong direction detection module send signal, remind vehicular traffic;
Described data transmission device to drive in the wrong direction the video requency frame data of detection module for transmitting described vehicle;
Described computing machine is for showing, storing the video requency frame data transmitted by described data transmission device.
3. a kind of vehicle on expressway according to claim 1 drives in the wrong direction detection method and autoalarm, it is characterized in that, also comprises warning device, and described warning device controls to be used for sending alerting signal by computing machine.
4. vehicle on expressway drives in the wrong direction a detection method, it is characterized in that, comprises the steps:
4.1) the vehicle detection module that drives in the wrong direction sets up rule of driving in the wrong direction: determine to need detect the polygonal region of vehicle, the direction of normal vehicle operation and allow vehicle to allow to depart from the maximum angle of normal travel direction;
4.2) moving vehicle is detected: to the background constructing mixture Gaussian background model of the frame of video that image capture module collects; By current frame image and background image subtraction, when threshold value is greater than certain value, think motion pixel, motion pixel is sorted out and obtains moving vehicle;
4.3) track of vehicle and morphological analysis:
A) travel through the vehicle of present frame, obtain the profile of vehicle, center of gravity, histogram and Fourier spectrum feature;
B) according to the position of vehicle at frame, calculate the position that vehicle may occur in previous frame, find all vehicles that in a frame of video, these positions exist;
If c) cannot vehicle be found, and the position residing for present frame vehicle is the position that vehicle enters surveyed area, then thinking that this normal vehicle operation appears at detects in scene, give overall unique reference number, add in normal tracking queue, continue the detection of next vehicle, forward step to a);
If d) cannot find vehicle, and present frame vehicle present position is the position that vehicle leaves surveyed area, then think that this vehicle may drive in the wrong direction and enter scene, give overall unique reference number, add and may drive in the wrong direction in vehicle platoon, forward step to a);
If e) cannot vehicle be found, and not at the edge of polygonal region, then think that vehicle is blocked or merges with other vehicles, put it in queue undetermined, do not change its label, wait for that next frame compares, forward step to a);
If f) find one or many cars, the then similarity of compute histograms similarity and Fourier spectrum feature, the similarity threshold of setting histogram similarity and Fourier spectrum feature, if there is no histogram similarity and Fourier spectrum characteristic similarity are greater than the vehicle of threshold value, then think and do not match, by the logical process not finding vehicle, forward step to a);
If g) have one or many cars eligible, then select the most similar vehicle, added in tracking queue, and give and label consistent before, calculate their relative position, if present frame vehicle is in retrograde position relative to previous frame, think that this car may exist retrograde.
5. a kind of vehicle on expressway according to claim 4 drives in the wrong direction detection method, it is characterized in that, after step g), also comprise the steps: that the vehicle detection module that drives in the wrong direction analyzes the metamorphosis of vehicle, if the lasting tracking frame number of this vehicle is less than N frame, then think that historical track information is also not enough to confirm, forward step to a), if continue to follow the tracks of frame number to be more than or equal to N frame, random selecting M frame judges, as long as have more than X frame or X frame (X≤M≤N) to be in retrograde position, then think that Current vehicle exists to drive in the wrong direction, the vehicle detection module that drives in the wrong direction sends signal to described warning flashing lamp, remind vehicular traffic.
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| CN105957312A (en) * | 2016-06-06 | 2016-09-21 | 重庆微标科技股份有限公司 | Prompting method and system for abnormal clearance of vehicle |
| CN106297314A (en) * | 2016-11-03 | 2017-01-04 | 北京文安智能技术股份有限公司 | A kind of drive in the wrong direction or the detection method of line ball vehicle behavior, device and a kind of ball machine |
| CN107886055A (en) * | 2017-10-27 | 2018-04-06 | 中国科学院声学研究所 | A kind of retrograde detection method judged for direction of vehicle movement |
| CN109637155A (en) * | 2018-11-12 | 2019-04-16 | 钦州学院 | A kind of vehicle detection apparatus of urban transportation intelligence control system |
| CN109661667A (en) * | 2016-10-14 | 2019-04-19 | 富士通株式会社 | The retrograde detection device of vehicle and method, electronic equipment |
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| CN105957312A (en) * | 2016-06-06 | 2016-09-21 | 重庆微标科技股份有限公司 | Prompting method and system for abnormal clearance of vehicle |
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| CN106297314A (en) * | 2016-11-03 | 2017-01-04 | 北京文安智能技术股份有限公司 | A kind of drive in the wrong direction or the detection method of line ball vehicle behavior, device and a kind of ball machine |
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| CN110310493A (en) * | 2019-07-02 | 2019-10-08 | 亳州职业技术学院 | Based on the retrograde restraint system of Internet of Things traffic |
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| CN112288695A (en) * | 2020-10-20 | 2021-01-29 | 无锡臻永科技有限公司 | Factory production area target identification system |
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| CN112738961A (en) * | 2021-01-06 | 2021-04-30 | 孔栓栓 | Intelligent road lighting control system based on big data and control method thereof |
| CN114882393A (en) * | 2022-03-29 | 2022-08-09 | 华南理工大学 | Road reverse running and traffic accident event detection method based on target detection |
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