CN104065920A - Vehicle monitoring and tracking method, system and server - Google Patents
Vehicle monitoring and tracking method, system and server Download PDFInfo
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- CN104065920A CN104065920A CN201410255317.XA CN201410255317A CN104065920A CN 104065920 A CN104065920 A CN 104065920A CN 201410255317 A CN201410255317 A CN 201410255317A CN 104065920 A CN104065920 A CN 104065920A
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Abstract
The invention discloses a vehicle monitoring and tracking method, system and server. The method comprises the steps that the server receives a vehicle tracking request message sent by a terminal device, coordinates of a reference position are set as coordinates of a geographic position in the message, and a first course and a second course are started; a target camera is determined in the first course, a target vehicle is searched for, characteristic vectors of last M characters in a license plate area of the target vehicle are extracted, after it is judged that the percentage of the similarity of the obtained M characteristic vectors and M standard characteristic vectors corresponding to the last M characters in license plate information is larger than a threshold value, image data and the identification of the target camera which the image data belong to are recorded, and prompts are sent out; in the second course, network information sent by the terminal device is monitored, the first course is terminated after a tracking confirmation message is received from the terminal device, the coordinates of the reference position are updated to be the position coordinates in the message, and the first course is restarted. The vehicle monitoring and tracking method, system and server reduce the workload of monitoring personnel and improve the intelligent degree of the monitoring system.
Description
Technical field
The present invention relates to technical field of video monitoring, relate in particular to automobile video frequency monitoring tracking technique field.
Background technology
Along with the continuous expansion of city size, the sharp increase of vehicles number constantly increases urban traffic pressure.In existing traffic surveillance and control system, by the cooperation of multiple-camera, can expand the observation scope of supervisory control system, facilitate traffic administration personnel to monitor the scene of each control point.But there is the problem that intelligent degree is lower in traditional traffic surveillance and control system.Staff selects a target vehicle to start to follow the tracks of at last portion video camera centre circle, when target vehicle rolls this video camera away from, staff need to be manually switched to next video camera, and again with the naked eye identifies target vehicle in new video camera, and circle choosing continues to follow the tracks of again.For within the scope of territory, whole city across video camera target Continuous Tracking, personnel's workload is huge.Therefore in conventional traffic supervisory control system, rely on the mode of manually carrying out vehicle tracking to be difficult to meet that traffic carrying capacity in vehicle tracking increases and the demand of intelligent Application completely.
Summary of the invention
The invention provides a kind of vehicle monitoring tracking, system and server, can solve in conventional traffic video monitoring and use manpower to carry out the problem of a large amount of manpowers of expending of vehicle tracking and non intelligentization completely.
The invention provides a kind of vehicle monitoring tracking, described method comprises:
After the vehicle tracking request message that comprises geographical position coordinates and license board information that server receiving terminal apparatus sends, determine the tracking event identifier of this tracing process, with reference to position coordinates, be set to described geographical position coordinates, start the first process and the second process;
In described the first process, carry out following content:
Inquire about apart from described reference position coordinate within reference range and in running order camera, as the center of circle, take to preset when scope that radius is inquiry radius does not inquire camera and increase described inquiry radius until inquire in running order camera with fixed step size take described address location coordinate, the camera inquiring is made as to target camera;
Obtain the real time video data of described target camera collection, the video data that often receives N second therefrom extracts a up-to-date frame image data, wherein N is default natural number, search the target vehicle that shows license plate area in this view data, extract the characteristic vector of the interior rear M of the license plate area position character of described target vehicle, M is greater than 1 and be less than 8 integer, after in M the characteristic vector that judgement obtains and described license board information, the similarity percentage of corresponding M standard feature vector of M position character is greater than after threshold value, record the sign of the affiliated target camera of described view data and view data and notify to described terminal equipment, described threshold value is to be greater than 0.60 and be less than 0.90 real number,
In described the second process, carry out following content:
The network information that monitor terminal equipment sends, from terminal equipment is received the confirmation tracking message that comprises position coordinates and described tracking event identifier, stop described the first process, by described reference position coordinate renew position coordinates in message for this reason, restart described the first process, continue to monitor the network information; From terminal equipment is received the tracking end that comprises described tracking event identifier, stop described the first process and described the second process, flow process finishes.
Further, said method can also have following characteristics:
Described in described method, in vehicle tracking request message, also comprise vehicle color;
After in M characteristic vector obtaining of judgement described in described method and described license board information the similarity percentage of corresponding M standard feature vector of M position character be greater than record after threshold value the sign of the target camera under described view data and view data notice extremely described terminal equipment specifically comprise: the similarity percentage that judges rear corresponding M standard feature vector of M position character in M characteristic vector obtaining and described license board information is greater than after described threshold value, after identifying the color of described target vehicle and judging when the color of described target vehicle is identical with vehicle color in described vehicle tracking request message, record the sign of the affiliated target camera of described view data and view data and notify to described terminal equipment.
Further, said method can also have following characteristics:
Described vehicle color is a kind of in following color: black, white, redness, yellow, green, blueness.
Further, said method can also have following characteristics:
The process that also comprises the described threshold value of automatic adjustment in described the first process, specifically comprises:
Add up described server and in second, send the number of times of described prompting at N, calculating be take described number of times and be take the ratio that the product of described target camera and N is dividend as divisor, described ratio is greater than at 1 o'clock with the described threshold value of poor renewal of described threshold value and fixed step size, described ratio be less than 5 o'clock with described threshold value and fixed step size with upgrade described threshold value, described fixed step size is to be greater than 0.05 real number that is less than 0.1.
The present invention also provides a kind of server, and described server comprises communication module, processor module;
Described communication module, the network information sending for monitor terminal equipment, receives after the vehicle tracking request message that comprises geographical position coordinates and license board information, and described vehicle tracking request message is sent to described processor module; Receive after the confirmation tracking message that comprises position coordinates and described tracking event identifier, described confirmation tracking message is sent to described processor module; Receive after the tracking end that comprises described tracking event identifier, described tracking end is sent to described processor module;
Described processor module, for receiving after vehicle tracking request message, determines the tracking event identifier of this tracing process, with reference to position coordinates, is set to described geographical position coordinates, starts the first process and the second process;
In described the first process, carry out following content:
Inquire about apart from described reference position coordinate within reference range and in running order camera, as the center of circle, take to preset when scope that radius is inquiry radius does not inquire camera and increase described inquiry radius until inquire in running order camera with fixed step size take described address location coordinate, the camera inquiring is made as to target camera;
Obtain the real time video data of described target camera collection, the video data that often receives N second therefrom extracts a up-to-date frame image data, wherein N is default natural number, search the target vehicle that shows license plate area in this view data, extract the characteristic vector of the interior rear M of the license plate area position character of described target vehicle, M is greater than 1 and be less than 8 integer, after in M the characteristic vector that judgement obtains and described license board information, the similarity percentage of corresponding M standard feature vector of M position character is greater than after threshold value, record the sign of the affiliated target camera of described view data and view data and notify to described terminal equipment, described threshold value is to be greater than 0.60 and be less than 0.90 real number,
In described the second process, carry out following content:
Monitor described communication module, from described communication module is received described confirmation tracking message, stop described the first process, by described reference position coordinate renew position coordinates in message for this reason, restart described the first process, continue to monitor described communication module; From described communication module is received the tracking end of described tracking event identifier, stop described the first process and described the second process.
Further, above-mentioned server can also have following characteristics:
Described processor module, also the similarity percentage for corresponding M standard feature vector of M position character after M characteristic vector obtaining in judgement and described license board information is greater than after described threshold value, after identifying the color of described target vehicle and judging when the color of described target vehicle is identical with vehicle color in described vehicle tracking request message, record the sign of the target camera under described view data and view data notice to described terminal equipment.
Further, above-mentioned server can also have following characteristics:
Described vehicle color is a kind of in following color: black, white, redness, yellow, green, blueness.
Further, above-mentioned server can also have following characteristics:
Described processor module, also for adding up described server, at N, in second, send the number of times of described prompting, calculating be take described number of times and be take the ratio that the product of described target camera and N is dividend as divisor, described ratio is greater than at 1 o'clock with the described threshold value of poor renewal of described threshold value and fixed step size, described ratio be less than 5 o'clock with described threshold value and fixed step size with upgrade described threshold value, described fixed step size is to be greater than 0.05 real number that is less than 0.1.
The present invention also provides a kind of vehicle monitoring tracking system, and described system comprises terminal equipment and above-mentioned server;
Described terminal equipment comprises user interactive module, display module, processor module, communication module;
Described user interactive module, for receiving at least one of following information of user input: the sign of camera, position coordinates, confirm to follow the tracks of indication, follow the tracks of and finish indication, and be sent to described processor module;
Described processor module, for receiving the position coordinates of user's input and confirm to follow the tracks of after indication, building the confirmation tracking message that comprises described position coordinates and described tracking event identifier and sending to described communication module; Also for receiving position coordinates, the image information of user's input and follow the tracks of and finish after indication, building the tracking end that comprises described tracking event identifier and sending to described communication module;
Described display module, for the real time video data that shows that camera that user selects gathers;
Described communication module, for sending the message of receiving from processor module to server.
The present invention can pass through the automatic processing to monitor video data, carry out car plate identification and in vehicle tracking process, search the target vehicle similar to the license plate number of tracked vehicle, for monitor staff provides the image that comprises above-mentioned target vehicle, by monitor staff, confirmed.The present invention has greatly reduced monitor staff's workload, has improved the degree of intelligence of supervisory control system.
The present invention can also add the identification to vehicle color, thereby searches also similar target vehicle of the similar and color of license plate number to tracked vehicle, further improves and searches accuracy, reduces monitor staff's workload, improves the degree of intelligence of supervisory control system.
Accompanying drawing explanation
The accompanying drawing that is incorporated in specification and forms a part for specification shows embodiments of the invention, and together with the description for explaining principle of the present invention.In these accompanying drawings, similarly Reference numeral is for key element like representation class.Accompanying drawing in the following describes is some embodiments of the present invention, rather than whole embodiment.For those of ordinary skills, do not paying under the prerequisite of creative work, can obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the flow chart of vehicle monitoring tracking in embodiment mono-;
Fig. 2 is the structure chart of server in embodiment mono-;
Fig. 3 is the structure chart of terminal equipment in embodiment mono-.
Specific embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.It should be noted that, in the situation that not conflicting, the embodiment in the application and the feature in embodiment be combination in any mutually.
Embodiment mono-
As shown in Figure 1, vehicle monitoring tracking comprises following three parts:
First 10, after the vehicle tracking request message that comprises geographical position coordinates and license board information that server receiving terminal apparatus sends, the tracking event identifier of determining this tracing process, is set to described geographical position coordinates with reference to position coordinates, starts the first process and the second process; Wherein the first process and the second process are two processes of executed in parallel.
Second portion 11, in the first process, carry out following content:
Step 1101, inquiry apart from reference position coordinate within reference range and in running order camera, as the center of circle, take to preset when scope that radius is inquiry radius does not inquire camera and increase inquiry radius until inquire in running order camera with fixed step size take address location coordinate, the camera inquiring is made as to target camera.
Step 1102, obtain the real time video data of target camera collection, the video data that often receives N second therefrom extracts a up-to-date frame image data, wherein N is default natural number, search the target vehicle that shows license plate area in this view data, extract the characteristic vector of the interior rear M of the license plate area position character of target vehicle, M is greater than 1 and be less than 8 integer, in M characteristic vector that judgement obtains and license board information, the similarity percentage of corresponding M standard feature vector of M position character is greater than after threshold value afterwards, record the sign of the affiliated target camera of this view data and view data and notify to described terminal equipment, above-mentioned threshold value is to be greater than 0.60 and be less than 0.90 real number.
Third part 12, in the second process, carry out following content:
Step 1201, the network information that monitor terminal equipment sends.
Step 1202, judges whether to receive from terminal equipment the confirmation tracking message that comprises position coordinates and follow the tracks of event identifier, if so, and execution step 1203, if not, execution step 1204.
Step 1203, stops the first process, with reference to position coordinates, upgrades for this reason position coordinates in message, restarts the first process, returns to step 1201.
Step 1204, judges whether to receive and comprise the tracking end of following the tracks of event identifier from terminal equipment, and if so, execution step 1205, if not, returns to step 1201.
Step 1205, stops the first process and the second process, and flow process finishes.
Vehicle monitoring is installed on terminal equipment in this method and follows the tracks of application software, user can send corresponding message to server by this software.
In the another kind of executive mode of third part, can after step 1201 completes, first perform step 1204 judgement, then perform step 1203 judgement.
The software program that server can be realized the present embodiment one method by operation is carried out said method.This software program can provide User Interface, and server can demonstrate the sign of the target camera under corresponding view data and view data while sending prompting.This software program also provides user to revise or arrange the input control of default radius and threshold value, makes user of service adjust as required above-mentioned parameter, thereby can adjust easily the precision of this method.
In above-mentioned steps 1102, searching the method that shows the target vehicle of license plate area in this view data specifically comprises: use mixture gaussian modelling to build dynamic road surface background, view data is compared and obtained each vehicle region with road surface background, the view data of vehicle region the latter half is carried out to rim detection, determine that marginal point density is greater than the enclosed region of default density thresholding, the enclosed region that the difference of the length-width ratio of length-width ratio and standard car plate is less than to tolerance thresholding is as license plate area, the vehicle region that the latter half region has this license plate area is the region at target vehicle place.
The scope that can process in time monitor staff for the number of times that makes server send prompting guarantees again the accuracy of identification of vehicle simultaneously, after the step 1102 of second portion 11, can also comprise the step of automatic adjustment threshold value, specifically comprise: statistical server sends the number of times of prompting at N in second, calculating be take number of times and be take the ratio that the product of target camera and N is dividend as divisor, ratio is greater than at 1 o'clock with the poor threshold value of upgrading of threshold value and fixed step size, ratio be less than 5 o'clock with threshold value and fixed step size with upgrade threshold value, fixed step size is to be greater than 0.05 real number that is less than 0.1.
As shown in Figure 2, in embodiment mono-, server comprises communication module 20 and processor module 21.
Communication module 20, the network information sending for monitor terminal equipment, receives after the vehicle tracking request message that comprises geographical position coordinates and license board information, and vehicle tracking request message is sent to processor module 21; Also for receiving, comprise position coordinates and follow the tracks of after the confirmation tracking message of event identifier, confirmation tracking message is sent to processor module 21; Also for receiving, comprise after the tracking end of following the tracks of event identifier, tracking end is sent to processor module 21.
Processor module 21, for receiving after vehicle tracking request message, determines the tracking event identifier of this tracing process, with reference to position coordinates, is set to geographical position coordinates, starts the first process and the second process;
In the first process, carry out following content:
Inquiry apart from reference position coordinate within reference range and in running order camera, as the center of circle, take to preset when scope that radius is inquiry radius does not inquire camera and increase inquiry radius until inquire in running order camera with fixed step size take address location coordinate, the camera inquiring is made as to target camera;
Obtain the real time video data of target camera collection, the video data that often receives N second therefrom extracts a up-to-date frame image data, wherein N is default natural number, search the target vehicle that shows license plate area in this view data, extract the characteristic vector of the interior rear M of the license plate area position character of target vehicle, M is greater than 1 and be less than 8 integer, in M characteristic vector that judgement obtains and license board information, the similarity percentage of corresponding M standard feature vector of M position character is greater than after threshold value afterwards, the sign of the target camera under recording image data and view data is also notified to terminal equipment, wherein threshold value is to be greater than 0.60 and be less than 0.90 real number,
In the second process, carry out following content:
Monitor communication module, from communication module, receive and confirm, tracking message, to stop the first process, with reference to position coordinates, upgrade for this reason position coordinates in message, restart the first process, continue to monitor communication module; From communication module is received the tracking end of following the tracks of event identifier, stop the first process and the second process.
Processor module 21 also sends the number of times of prompting for statistical server at N in second, calculating be take number of times and be take the ratio that the product of target camera and N is dividend as divisor, ratio is greater than at 1 o'clock with the poor threshold value of upgrading of threshold value and fixed step size, ratio be less than 5 o'clock with threshold value and fixed step size with upgrade threshold value, fixed step size is to be greater than 0.05 real number that is less than 0.1.
Vehicle monitoring tracking system in embodiment mono-comprises terminal equipment and above-mentioned server.Terminal equipment is intelligent mobile terminal or computer equipment, and as shown in Figure 3, terminal equipment comprises user interactive module 30, processor module 31, display module 32, communication module 33.
User interactive module 30 is for receiving at least one of following information of user input: the sign of camera, and position coordinates, confirm to follow the tracks of indication, follow the tracks of and finish indication, and be sent to processor module;
Processor module 31, for receiving the position coordinates of user's input and confirming to follow the tracks of after indication, builds and comprises position coordinates and follow the tracks of the confirmation tracking message of event identifier and send to communication module; Also, for receiving position coordinates, the image information of user's input and following the tracks of and finish after indication, build to comprise and follow the tracks of the tracking end of event identifier and send to communication module;
The real time video data of display module 32 for showing that camera that user selects gathers;
Communication module 33 is for sending the message of receiving from processor module to server.
The present embodiment one can pass through the automatic processing to monitor video data, carry out car plate identification and in vehicle tracking process, search the target vehicle similar to the license plate number of tracked vehicle, for monitor staff provides the image that comprises above-mentioned target vehicle, by monitor staff, confirmed.The present invention has greatly reduced monitor staff's workload, has improved the degree of intelligence of supervisory control system.
Embodiment bis-
The method of the method for embodiment bis-and embodiment mono-is basic identical, and embodiment bis-is with embodiment mono-difference:
In first 10, in vehicle tracking request message, also comprise vehicle color; Vehicle color is a kind of in following color: black, white, redness, yellow, green, blueness.In this method, silver color, grey are all incorporated to a white class, purple is incorporated to a red class, gold is incorporated to a yellow class.
Step 1102 is obtained the real time video data of target camera collection, the video data that often receives N second therefrom extracts a up-to-date frame image data, wherein N is default natural number, search the target vehicle that shows license plate area in this view data, extract the characteristic vector of the interior rear M of the license plate area position character of target vehicle, M is greater than 1 and be less than 8 integer, in M characteristic vector that judgement obtains and license board information, the similarity percentage of corresponding M standard feature vector of M position character is greater than after threshold value afterwards, after when the color of the color of identification target vehicle and judgement target vehicle is identical with the vehicle color in vehicle tracking request message, the sign of the target camera under recording image data and view data is also notified to terminal equipment, above-mentioned threshold value is to be greater than 0.60 and be less than 0.90 real number.
In embodiment bis-, server is compared with embodiment mono-, its processor module is also for judging that the similarity percentage of corresponding M standard feature vector of M position character is greater than after threshold value after M characteristic vector obtaining and license board information, after when the color of the color of identification target vehicle and judgement target vehicle is identical with the vehicle color in vehicle tracking request message, the sign of the target camera under recording image data and view data is also notified to terminal equipment, and above-mentioned threshold value is to be greater than 0.60 and be less than 0.90 real number.
The present embodiment two is compared embodiment mono-and has been added the identification to vehicle color, thereby search also similar target vehicle of the similar and color of license plate number to tracked vehicle, further improve and search accuracy, reduce monitor staff's workload, improve the degree of intelligence of supervisory control system.
Specific embodiment
The traffic surveillance and control system of this specific embodiment comprises totally 80 of the cameras at 20 crossings.The sign format of the camera at each crossing comprises road slogan and represents the letter of shooting direction, and for example the 3rd crossing shooting direction is camera northwards is designated 3-N.
Video monitoring personnel are by find in computer checking monitoring video process that car plate is that the vehicles peccancy of capital N12345 does not stop and rolling away from by force in accordance with the instructions, open the vehicle monitoring having started and follow the tracks of application software at input capital, license board information position N12345, the geographical position coordinates of the current corresponding camera of monitor video of checking of this software automatic acquisition computer, computer sends the vehicle tracking request message that comprises above-mentioned geographical position coordinates and capital N12345 to server by this software.
Server receives after vehicle tracking request message, determine the tracking event identifier of this tracing process, this sign can comprise the sign of date and time and the intelligent mobile terminal of receiving this message, the reference position coordinate of this tracing process is set to above-mentioned geographical position coordinates, starts the first process and the second process.
Server is inquired about apart from reference position coordinate within 500 meters and totally 16 of in running order cameras in the first process, and 16 cameras that inquire are made as to target camera.The real time video data of each target camera collection is carried out to following processing: the video data that often receives 5 seconds therefrom extracts a up-to-date frame image data, search the target vehicle that shows license plate area in this view data, extract the characteristic vector of interior rear 3 characters of license plate area of target vehicle, in 3 characteristic vectors that judgement obtains and capital N12345, rear 3 characters are after the similarity percentage of " 345 " corresponding 3 standard feature vectors is greater than 80%, record the sign of the affiliated target camera of this view data and view data and notify to above-mentioned computer.
Video monitoring personnel check from computer the view data that comprises doubtful vehicle that server returns, judgement comprises after car plate three similar (for example after car plate 3 be 346) 345 in view data but ignores this notice while being not the vehicles peccancy of capital N12345, judgement comprises in view data to be followed the tracks of application software by vehicle monitoring when car plate is the vehicles peccancy of capital N12345 and confirms tracking, the position coordinates that application software obtains the sign correspondence of target camera under the view data therewith of receiving from server is followed the tracks of in vehicle monitoring, the confirmation tracking message that structure comprises position coordinates and tracking event identifier sends to server.
Server receives and confirms, after tracking message, to stop the first process, with reference to position coordinates, upgrades for this reason position coordinates in message, restarts the first process and proceeds vehicle and search.Server constantly provides the image of doubtful vehicles peccancy for video monitoring personnel, can reduce in a large number video monitoring personnel's workload, the image that video monitoring personnel provide from server, confirm real vehicles peccancy, and trace into the travel route of vehicles peccancy.
Vehicles peccancy is controlled or video monitoring personnel think when tracking can finish, by vehicle monitoring, following the tracks of application software sends and comprises the tracking end of following the tracks of event identifier to server, server is received rear termination the first process and the second process, and this tracing process finishes.
Above-described content can be individually or the enforcement that combines in every way, and these variant are all within protection scope of the present invention.
Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit.Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a vehicle monitoring tracking, is characterized in that, described method comprises:
After the vehicle tracking request message that comprises geographical position coordinates and license board information that server receiving terminal apparatus sends, determine the tracking event identifier of this tracing process, with reference to position coordinates, be set to described geographical position coordinates, start the first process and the second process;
In described the first process, carry out following content:
Inquire about apart from described reference position coordinate within reference range and in running order camera, as the center of circle, take to preset when scope that radius is inquiry radius does not inquire camera and increase described inquiry radius until inquire in running order camera with fixed step size take described address location coordinate, the camera inquiring is made as to target camera;
Obtain the real time video data of described target camera collection, the video data that often receives N second therefrom extracts a up-to-date frame image data, wherein N is default natural number, search the target vehicle that shows license plate area in this view data, extract the characteristic vector of the interior rear M of the license plate area position character of described target vehicle, M is greater than 1 and be less than 8 integer, after in M the characteristic vector that judgement obtains and described license board information, the similarity percentage of corresponding M standard feature vector of M position character is greater than after threshold value, record the sign of the affiliated target camera of described view data and view data and notify to described terminal equipment, described threshold value is to be greater than 0.60 and be less than 0.90 real number,
In described the second process, carry out following content:
The network information that monitor terminal equipment sends, from terminal equipment is received the confirmation tracking message that comprises position coordinates and described tracking event identifier, stop described the first process, by described reference position coordinate renew position coordinates in message for this reason, restart described the first process, continue to monitor the network information; From terminal equipment is received the tracking end that comprises described tracking event identifier, stop described the first process and described the second process, flow process finishes.
2. monitoring tracking as claimed in claim 1, is characterized in that,
Described in described method, in vehicle tracking request message, also comprise vehicle color;
After in M characteristic vector obtaining of judgement described in described method and described license board information the similarity percentage of corresponding M standard feature vector of M position character be greater than record after threshold value the target camera under described view data and view data sign and and notice extremely described terminal equipment specifically comprise: the similarity percentage that judges rear corresponding M standard feature vector of M position character in M characteristic vector obtaining and described license board information is greater than after described threshold value, after identifying the color of described target vehicle and judging when the color of described target vehicle is identical with vehicle color in described vehicle tracking request message, record the sign of the affiliated target camera of described view data and view data and notify to described terminal equipment.
3. monitoring tracking as claimed in claim 2, is characterized in that,
Described vehicle color is a kind of in following color: black, white, redness, yellow, green, blueness.
4. the monitoring tracking as described in claim 1,2 or 3, is characterized in that,
The process that also comprises the described threshold value of automatic adjustment in described the first process, specifically comprises:
Add up described server and in second, send the number of times of described prompting at N, calculating be take described number of times and be take the ratio that the product of described target camera and N is dividend as divisor, described ratio is greater than at 1 o'clock with the described threshold value of poor renewal of described threshold value and fixed step size, described ratio be less than 5 o'clock with described threshold value and fixed step size with upgrade described threshold value, described fixed step size is to be greater than 0.05 real number that is less than 0.1.
5. a server, is characterized in that, described server comprises communication module, processor module;
Described communication module, the network information sending for monitor terminal equipment, receives after the vehicle tracking request message that comprises geographical position coordinates and license board information, and described vehicle tracking request message is sent to described processor module; Receive after the confirmation tracking message that comprises position coordinates and described tracking event identifier, described confirmation tracking message is sent to described processor module; Receive after the tracking end that comprises described tracking event identifier, described tracking end is sent to described processor module;
Described processor module, for receiving after vehicle tracking request message, determines the tracking event identifier of this tracing process, with reference to position coordinates, is set to described geographical position coordinates, starts the first process and the second process;
In described the first process, carry out following content:
Inquire about apart from described reference position coordinate within reference range and in running order camera, as the center of circle, take to preset when scope that radius is inquiry radius does not inquire camera and increase described inquiry radius until inquire in running order camera with fixed step size take described address location coordinate, the camera inquiring is made as to target camera;
Obtain the real time video data of described target camera collection, the video data that often receives N second therefrom extracts a up-to-date frame image data, wherein N is default natural number, search the target vehicle that shows license plate area in this view data, extract the characteristic vector of the interior rear M of the license plate area position character of described target vehicle, M is greater than 1 and be less than 8 integer, after in M the characteristic vector that judgement obtains and described license board information, the similarity percentage of corresponding M standard feature vector of M position character is greater than after threshold value, record the sign of the affiliated target camera of described view data and view data and notify to described terminal equipment, described threshold value is to be greater than 0.60 and be less than 0.90 real number,
In described the second process, carry out following content:
Monitor described communication module, from described communication module is received described confirmation tracking message, stop described the first process, by described reference position coordinate renew position coordinates in message for this reason, restart described the first process, continue to monitor described communication module; From described communication module is received the tracking end of described tracking event identifier, stop described the first process and described the second process.
6. server as claimed in claim 5, is characterized in that,
Described processor module, also the similarity percentage for corresponding M standard feature vector of M position character after M characteristic vector obtaining in judgement and described license board information is greater than after described threshold value, after identifying the color of described target vehicle and judging when the color of described target vehicle is identical with vehicle color in described vehicle tracking request message, record the sign of the target camera under described view data and view data notice to described terminal equipment.
7. server as claimed in claim 5, is characterized in that,
Described vehicle color is a kind of in following color: black, white, redness, yellow, green, blueness.
8. the server as described in claim 5,6 or 7, is characterized in that,
Described processor module, also for adding up described server, at N, in second, send the number of times of described prompting, calculating be take described number of times and be take the ratio that the product of described target camera and N is dividend as divisor, described ratio is greater than at 1 o'clock with the described threshold value of poor renewal of described threshold value and fixed step size, described ratio be less than 5 o'clock with described threshold value and fixed step size with upgrade described threshold value, described fixed step size is to be greater than 0.05 real number that is less than 0.1.
9. a vehicle monitoring tracking system, is characterized in that, described system comprises the server described in terminal equipment and described claim 5,6 or 7;
Described terminal equipment comprises user interactive module, processor module, display module, communication module;
Described user interactive module, for receiving at least one of following information of user input: the sign of camera, position coordinates, confirm to follow the tracks of indication, follow the tracks of and finish indication, and be sent to described processor module;
Described processor module, for receiving the position coordinates of user's input and confirm to follow the tracks of after indication, building the confirmation tracking message that comprises described position coordinates and described tracking event identifier and sending to described communication module; Also for receiving position coordinates, the image information of user's input and follow the tracks of and finish after indication, building the tracking end that comprises described tracking event identifier and sending to described communication module;
Described display module, for the real time video data that shows that camera that user selects gathers;
Described communication module, for sending the message of receiving from processor module to server.
10. system as claimed in claim 9, is characterized in that,
Described terminal equipment is intelligent mobile terminal or computer equipment.
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