CN105096608A - Method, device and system for improving identification accuracy of license plates - Google Patents
Method, device and system for improving identification accuracy of license plates Download PDFInfo
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- CN105096608A CN105096608A CN201510559740.3A CN201510559740A CN105096608A CN 105096608 A CN105096608 A CN 105096608A CN 201510559740 A CN201510559740 A CN 201510559740A CN 105096608 A CN105096608 A CN 105096608A
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Abstract
The invention discloses a method, a device and a system for improving the identification accuracy of license plates. The method comprises the steps of acquiring the license plates of all vehicles in a preset region, mapping the license plates of all vehicles in the preset region into a temporary license plate set; acquiring a license plate identification result sent from license plate identification equipment; comparing the license plate identification result with the temporary license plate set; and sending a license plate in the temporary license plate set to the license plate identification equipment, wherein the license plate is most matched with the license plate identification result. According to the technical scheme of the invention, the license plate identification result is compared with the temporary license plate set composed of the license plates of all vehicles in the preset region, so that the license plate identification accuracy is improved. Meanwhile, the vehicle driving-in/out speed is accelerated. The traffic congestion pressure is greatly relieved, and the intelligent degree of the traffic management is improved.
Description
Technical field
The present invention relates to field of license plate recognition, particularly relate to a kind of method, the Apparatus and system that improve Car license recognition accuracy.
Background technology
In recent years, along with the fast development of economic society, the quantity of vehicle also grows with each passing day.In order to improve the efficiency of management of vehicle, alleviate traffic pressure on highway, more and more higher to the requirement of Car license recognition rate.Particularly license plate recognition technology at magnitude of traffic flow detection, Traffic Control and Guidance, To Intelligent Home management, the automatic charging that do not stop, the monitoring vehicle breaking regulation and vehicle safety is antitheft etc. that field has broad application prospects such as make a dash across the red light.But due to the impact of conditions such as having dust, environmental change in season and car plate itself contaminated and fuzzy in the change of external environment light, light path, make Car license recognition rate not high, and cause the much new application depending on Car license recognition not realize.
Summary of the invention
The object of this invention is to provide a kind of method, the Apparatus and system that improve Car license recognition accuracy, thus promote the intelligence degree in traffic administration.
For achieving the above object, the application provides following technical scheme:
First aspect, the invention provides a kind of method improving Car license recognition accuracy, comprises the following steps:
Obtain the car plate of all vehicles in predeterminable area, and the car plate of vehicles all in the predeterminable area of acquisition is mapped as Provisional Number Plate collection;
Obtain the license plate recognition result that Car license recognition equipment sends;
Described license plate recognition result and Provisional Number Plate collection are compared, is concentrated by described Provisional Number Plate the car plate the highest with described license plate recognition result matching degree to send to Car license recognition equipment.
In an embodiment of the present invention, in described acquisition predeterminable area the car plate of all vehicles step before, also comprise: judge whether vehicle enters predeterminable area.
Preferably, the described step judging whether vehicle enters predeterminable area comprises: the positional information obtaining vehicle, and judges whether vehicle enters predeterminable area according to the positional information of described vehicle.
In this embodiment, if judge, vehicle enters predeterminable area, then obtain the car plate of all vehicles in predeterminable area, wherein, in described predeterminable area, all vehicles comprise the vehicle entering predeterminable area, and this vehicle enters the predeterminable area moment, other all vehicles in this predeterminable area.
As described in the present invention, " positional information of acquisition vehicle " includes but not limited to the positional information being obtained vehicle by the rotine positioning locator meams in industry.Such as, the localization method that family, community and Administrative Area are comparatively common have the location based on GPS, the location based on WIFI, based on base station, location etc. based on bluetooth.
Preferably, the positional information of described vehicle is determined by the GPS module of the mobile terminal on each car, WIFI module and/or bluetooth module.
In an embodiment of the present invention, in described acquisition predeterminable area the car plate of all vehicles step before, also comprise: obtain and enter communication request or the user authentication request of predeterminable area vehicle.
In an embodiment of the present invention, all vehicle license plates in described acquisition predeterminable area, and the step car plate of vehicles all in the predeterminable area of acquisition being mapped as Provisional Number Plate collection comprises:
Obtain the N that the T moment enters predeterminable area
(t)the car plate of car, and the car plate of other all vehicles in predeterminable area described in the Real-time Obtaining T moment, by N
(t)in predeterminable area described in the car plate of car and T moment, the car plate of other all vehicles is mapped as T Provisional Number Plate collection, and N is natural number, N
(t)represent that the T moment enters the vehicle number of predeterminable area.
In an embodiment of the present invention, the described acquisition T moment enters the N of predeterminable area
(t)the step of the car plate of car comprises:
Acquisition enters the N of predeterminable area by the T moment
(t)the identity information that mobile terminal on car or vehicle module send, transfers the pre-bound N with this identity information according to described identity information
(t)the car plate of car.
In this embodiment, if N is greater than 1, so, the identity information of acquisition is the identity information of many cars, then transfer car plate corresponding to each car according to the identity information of each car.
In this embodiment, described identity information preferably includes the physical label address of user authentication request and/or described mobile terminal or vehicle module.
In an embodiment of the present invention, the described acquisition T moment enters the N of predeterminable area
(t)the step of the car plate of car comprises:
Acquisition enters the N of predeterminable area by the T moment
(t)the N that mobile terminal on car or vehicle module send
(t)the car plate of car.
In this embodiment, the described T moment enters the N of predeterminable area
(t)the N that mobile terminal on car or vehicle module send
(t)car plate preferably to be inputed to mobile terminal on this vehicle or vehicle module by the user on this vehicle by the car plate of car.
In an embodiment of the present invention, in predeterminable area described in the described Real-time Obtaining T moment, the step of the car plate of other all vehicles comprises:
During from the T-1 moment to the T moment, sail out of the car plate of the vehicle of predeterminable area from the concentrated removal of T-1 Provisional Number Plate, obtain the car plate of other all vehicles in predeterminable area described in the T moment;
Wherein, N
(t-1)car enters predeterminable area in the T-1 moment, N
(t)car enters predeterminable area in the T moment.
Scheme provided by the invention maps a Provisional Number Plate collection to each car entering predeterminable area of a certain moment, when many cars of same moment enter predeterminable area simultaneously, then all can obtain same Provisional Number Plate collection to these many cars.
As described in the present invention, " T-1 moment " and " T moment " represent that the vehicle successively entering predeterminable area enters the time of predeterminable area respectively; Wherein, the vehicle successively entering predeterminable area can be one or many; Such as the first moment enters 1 car, and the second moment entered 3 cars.
In an embodiment of the present invention, described car plate is license plate number or license board information.
Second aspect, the invention provides a kind of device improving Car license recognition accuracy, comprising:
Data acquisition module, for obtaining the car plate of all vehicles in predeterminable area and the license plate recognition result for obtaining the transmission of Car license recognition equipment;
Mapping block, is mapped as Provisional Number Plate collection for the car plate of all vehicles in the predeterminable area that obtained by data acquisition module;
Data analysis module, the Provisional Number Plate collection mapped for the license plate recognition result sent by Car license recognition equipment that obtained by data acquisition module and memory module is compared, and is concentrated by described Provisional Number Plate the car plate the highest with described license plate recognition result matching degree to send to Car license recognition equipment.
In an embodiment of the present invention, described data acquisition module is specifically for obtaining the positional information of vehicle, and wherein, the positional information of described vehicle is determined by the GPS module of the mobile terminal on each car, WIFI module and/or bluetooth module.
In this embodiment, preferably, the device of described raising Car license recognition accuracy also comprises regional determination module, according to the positional information of described vehicle, described regional determination module judges whether described vehicle enters predeterminable area.
In this embodiment, more preferably, if regional determination module judges that described vehicle enters predeterminable area, then data acquisition module obtains the car plate of all vehicles in predeterminable area; Wherein, the step that data acquisition module obtains the car plate of all vehicles in predeterminable area comprises: the vehicle entering predeterminable area described in acquisition, and the moment obtaining that described vehicle enters predeterminable area, other all vehicles in this predeterminable area.
In an embodiment of the present invention, described data acquisition module is specifically for obtaining the communication request or user authentication request that are sent by the mobile terminal on a car.
In this embodiment, preferably, the device of described raising Car license recognition accuracy also comprises subscriber authentication module, verifies for the user authentication request obtained data acquisition module, if by checking, then data acquisition module obtains the car plate of this vehicle.
In this embodiment, preferably, described mobile terminal is for obtaining the positional information of vehicle, and judge whether described vehicle enters predeterminable area, if judge, described vehicle enters predeterminable area, then send communication request or user authentication request to the data acquisition module of described device, wherein, the positional information of described vehicle is determined by the GPS module of the mobile terminal on a car, WIFI module and/or bluetooth module.
In an embodiment of the present invention, described data acquisition module specifically for: obtain the N that the T moment enters predeterminable area
(t)the car plate of car, and the car plate of other all vehicles in predeterminable area described in the Real-time Obtaining T moment;
Then described mapping block specifically for: by N
(t)in predeterminable area described in the car plate of car and T moment, the car plate of other all vehicles is mapped as T Provisional Number Plate collection.
Preferably, the described N entering predeterminable area for obtaining the T moment
(t)the data acquisition module of the car plate of car specifically for: obtain and enter the N of predeterminable area by the T moment
(t)the identity information that the upper mobile terminal of car or onboard system send; And transfer the pre-bound N with this identity information according to obtained identity information
(t)the car plate of car.
In this embodiment, if N is greater than 1, so, the identity information of acquisition is the identity information of many cars, then transfer car plate corresponding to each car according to the identity information of each car.
In this embodiment, described identity information preferably includes the physical label address of user authentication request and/or described mobile terminal.
Preferably, the described N entering predeterminable area for obtaining the T moment
(t)the data acquisition module of the car plate of car specifically for: obtain and enter the N of predeterminable area by the T moment
(t)the N that mobile terminal on car or vehicle module send
(t)the car plate of car.
In this embodiment, the described T moment enters the N of predeterminable area
(t)the N that mobile terminal on car or vehicle module send
(t)car plate preferably to be inputed to mobile terminal on this vehicle or vehicle module by the user on this vehicle by the car plate of car.
In an embodiment of the present invention, described data acquisition module specifically for: obtain the N that the T moment enters predeterminable area
(t)the car plate of car, and the car plate sailing out of the vehicle of predeterminable area during obtaining from the T-1 moment to the T moment; Wherein, N
(t-1)car enters predeterminable area in the T-1 moment, N
(t)car enters predeterminable area in the T moment;
Then described mapping block specifically for: by described from the T-1 moment to the T moment during sail out of the vehicle of predeterminable area car plate to concentrate from T-1 Provisional Number Plate and remove, obtain the car plate of other all vehicles interior of predeterminable area described in the T moment; Then is entered the N of predeterminable area the described T moment
(t)in predeterminable area described in the car plate of car and T moment, the car plate of other all vehicles is mapped as T Provisional Number Plate.
The third aspect, the invention provides a kind of terminal, comprises the device of the raising Car license recognition accuracy described in second aspect.
In an embodiment of the present invention, described terminal includes but not limited to fixed terminal conventional in industry or mobile terminal, such as Cloud Server, parking lot server.
Fourth aspect, the invention provides a kind of Car license recognition equipment, it is characterized in that, comprising:
Car license recognition module, for identifying car plate, draws license plate recognition result;
Information sending module, sends license plate recognition result for the device to the raising Car license recognition accuracy described in second aspect,
Information receiving module, the car plate comparison result that the device for receiving the raising Car license recognition accuracy described in second aspect sends.
In an embodiment of the present invention, described Car license recognition equipment also comprises car plate output module, for showing the car plate comparison result that receiver module receives, wherein, described car plate comparison result is that Provisional Number Plate concentrates the car plate the highest with license plate recognition result matching degree.
5th aspect, the invention provides a kind of system improving Car license recognition accuracy, comprising:
Mobile terminal, the device of the raising Car license recognition accuracy as described in second aspect, and the Car license recognition equipment as described in fourth aspect;
Described mobile terminal is used for the device identity information of corresponding vehicle or car plate being sent to the raising Car license recognition accuracy as described in second aspect, and wherein, described mobile terminal is positioned on described corresponding vehicle;
License plate recognition result for identifying vehicle license plate, and is sent to the device as described in second aspect by the described Car license recognition equipment as described in fourth aspect; Also for receiving the car plate comparison result of the device transmission as described in second aspect.
In an embodiment of the present invention, described mobile terminal includes but not limited to mobile phone, notebook, panel computer, onboard system.
In an embodiment of the present invention, described mobile terminal comprises locating module and signal transmitting module, and wherein, described locating module is for determining the positional information of mobile terminal place vehicle; Described signal transmitting module is used for the data acquisition module of the device described positional information being sent to the raising Car license recognition accuracy as described in second aspect.
In this embodiment, preferably, the signal transmitting module of described mobile terminal is also for sending subscriber identity information to the device as described in second aspect.
In an embodiment of the present invention, described mobile terminal comprises locating module, regional determination module, and wherein, described locating module is for determining the positional information of mobile terminal place vehicle; Described regional determination module is used for judging whether mobile terminal place vehicle enters predeterminable area according to described positional information, when mobile terminal enters predeterminable area, mobile terminal namely with or to ask and device as described in second aspect establishes a communications link.
In this embodiment, preferably, described mobile terminal comprises user authentication module well, and described user authentication module is used for sending subscriber identity information to the device as described in second aspect.
In an embodiment of the present invention, described mobile terminal also comprises user interactive module, for the interface providing user to input car plate.
In this embodiment, described mobile terminal also comprises signal transmitting module, and the car plate for user being inputted is sent to the device as described in second aspect.
The device of mobile terminal and the raising Car license recognition accuracy as described in second aspect, all carries out information transmission by the network communications technology between the device of raising Car license recognition accuracy as described in second aspect and the Car license recognition equipment as described in fourth aspect; In an embodiment of the present invention, the network communication protocol of employing can be ICP/IP protocol, http protocol, File Transfer Protocol etc.
Compared with prior art, the present invention has following beneficial effect:
The present invention is by obtaining the car plate of all vehicles in predeterminable area, and the car plate of vehicles all in described predeterminable area is mapped as Provisional Number Plate collection, obtain the license plate recognition result that Car license recognition equipment sends again, described license plate recognition result and Provisional Number Plate collection are compared, and export described Provisional Number Plate and concentrate the car plate the highest with license plate recognition result matching degree, improve the accuracy of Car license recognition, accelerate vehicle discrepancy speed, slow down the pressure of traffic congestion, promote the intelligence degree in traffic administration.
Accompanying drawing is described
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural drawing of a kind of server that Fig. 1 provides for the embodiment of the present application 1;
The structural drawing of a kind of Car license recognition equipment that Fig. 2 provides for the embodiment of the present application 1;
A kind of structural drawing improving Car license recognition accuracy system that Fig. 3 provides for the embodiment of the present application 1;
A kind of process flow diagram improving Car license recognition accuracy method that Fig. 4 provides for the embodiment of the present application 2.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, be clearly and completely described the technical scheme in the embodiment of the present application, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the application's protection.
As described in the present invention, described car plate is the license board information that the conventional car plate collecting devices (such as camera) such as license plate image, license plate number or license board information can gather, such as Guangdong A12345.
As described in the present invention, " mobile terminal " or mobile communication terminal, refer to the computer equipment that can use in movement, and the saying of broad sense comprises mobile phone, notebook, panel computer, POS even comprise vehicle-mounted computer.
Common vehicle identification system is made up of equipment such as intelligent barrier gate, wagon detector, electronic display, management computer, light filling equipment, CCTV cameras.In general, wagon detector and CCTV camera are all arranged on vehicle and enter sluice gate or garage entrance, wagon detector is by mode sense vehicle turnover such as ground senses, CCTV camera is by embedded identification software identification car plate, and embedded identification software generally contains the modules such as video acquisition, Image semantic classification, car plate detection, car plate cutting, character recognition, tracking and comparison, compression of images, data transmission.Of the present invention, " Car license recognition equipment ", refer to the car plate checkout equipment in the vehicle identification system in the places such as community, market, office space, company, parking lot, recreation ground, narrowly, refer to the car plate checkout equipment comprising CCTV camera, broadly, whole vehicle identification system can be comprised.
Embodiment 1
With reference to Fig. 1, Fig. 2 and Fig. 3, the invention provides a kind of server 20, Car license recognition equipment 30 and improve the system 40 of Car license recognition accuracy.
Fig. 1 is the structural drawing of a kind of server 20 provided by the invention, comprises the device of raising Car license recognition provided by the invention accuracy.Device provided by the invention comprises data acquisition module 201, mapping block 202, data analysis module 203; Wherein, described data acquisition module 201, for obtaining the car plate of all vehicles in predeterminable area and the license plate recognition result for obtaining Car license recognition equipment 30 transmission; Described mapping block 202, is mapped as Provisional Number Plate collection for the car plate of all vehicles in the predeterminable area that obtained by data acquisition module; Described data analysis module 203, the Provisional Number Plate collection mapped for the license plate recognition result sent by Car license recognition equipment that obtained by data acquisition module and mapping block is compared, and is concentrated by described Provisional Number Plate the car plate the highest with license plate recognition result matching degree to send to Car license recognition equipment 30.
In an embodiment of the present invention, the device of described raising Car license recognition accuracy also comprises regional determination module, the positional information that described regional determination module obtains vehicle according to data acquisition module 201 judges whether described vehicle enters predeterminable area, if judge, described vehicle enters predeterminable area, then data acquisition module obtains the car plate of this vehicle again, and the car plate of Real-time Obtaining predeterminable area other vehicles interior.In this embodiment, the positional information of described vehicle is determined by the GPS module of the mobile terminal on each vehicle, WIFI module and/or bluetooth module, and by the mobile terminal (such as signal transmitting module) on each vehicle, the positional information determined is sent to acquisition module 201.
In another embodiment of the present invention, the device of described raising Car license recognition accuracy also comprises subscriber authentication module, verifies for the user authentication request obtained data acquisition module, if by checking, then data acquisition module obtains the car plate of this vehicle.In this embodiment, the positional information of described acquisition for mobile terminal vehicle, mobile terminal (the regional determination module of such as mobile terminal) judges whether described vehicle enters predeterminable area, if judge, described vehicle enters predeterminable area, then mobile terminal (signal transmitting module of such as mobile terminal) sends communication request or user authentication request to the data acquisition module of described device, wherein, the positional information of described vehicle is determined by the GPS module of the mobile terminal on a car, WIFI module and/or bluetooth module.
Server 20 provided by the invention includes but not limited to server 20 conventional in industry, such as parking lot server, is preferably Cloud Server.
Preferably, described server 20 also comprises SIM 204, for carrying out subscriber authentication to the subscriber identity information of the transmission in mobile terminal 10, and when authentication success and mobile terminal 10 establish a communications link.
Fig. 2 is a kind of Car license recognition equipment 30 provided by the invention, comprises Car license recognition module 301, information sending module 302, information receiving module 303, car plate output module 304; Wherein, described Car license recognition module 301 (such as video camera), for identifying car plate, draws license plate recognition result; Described information sending module 302, sends license plate recognition result for the device to the raising Car license recognition accuracy described in second aspect; Information receiving module 303, the car plate comparison result that the device for receiving the raising Car license recognition accuracy described in second aspect sends; Described car plate output module 304 (such as electronic display), for showing the information that information receiving module receives.
Fig. 3 is a kind of system 40 improving Car license recognition accuracy provided by the invention, comprises server 20 provided by the invention and Car license recognition equipment 30, also comprises mobile terminal 10.
In an embodiment of the present invention, described mobile terminal 10 comprises regional determination module 105, for judging whether mobile terminal 10 enters predeterminable area, when mobile terminal 10 enters predeterminable area, mobile terminal 10 namely with or to ask and server 20 establishes a communications link; When mobile terminal 10 leaves from predeterminable area, namely to disconnect or request disconnects and the communication connection of server 20, after mobile terminal 10 and server 20 disconnect and communicate to connects, server 20 by the car plate of this vehicle from the concentrated removal of Provisional Number Plate.
Preferably, in this embodiment, mobile terminal 10 also comprises user authentication module 104, the mode that then described mobile terminal 10 is asked and server 20 establishes a communications link is: user authentication module 104 sends authenticating user identification request to server 20, when server 20 is by certification, namely server 10 establishes a communications link with mobile terminal 20.
After establishing a communications link, the data acquisition module 201 of server 10 transfers car plate pre-bound with the identity information of this user according to the identity information of this user.
More preferably, in this embodiment, the mode that described user authentication module 104 sends authenticating user identification request to server 20 is: user authentication module 104 sends username and password to server 20 and carries out authenticating user identification, or certification is carried out in transmission customer mobile terminal physical label address.
In another embodiment of the present invention, described mobile terminal 10 comprises locating module 101 (such as GPS locating module), described position coordinates for determining the positional information of mobile terminal place vehicle, and is sent to server 20 by described locating module 101.
In this embodiment, judge whether this vehicle enters predeterminable area by server 20 according to the positional information of the mobile terminal place vehicle obtained, if judge, vehicle enters predeterminable area, then obtain the car plate binding this vehicle in advance; If judge, vehicle leaves from predeterminable area, then concentrated from Provisional Number Plate by the car plate of this vehicle and remove.
In another embodiment of the present invention, described mobile terminal 10 comprises user interactive module 102 and signal transmitting module 103; In this embodiment, user is manual or phonetic entry car plate by user interactive module 102, and described signal transmitting module 103 car plate that is user is manual or phonetic entry is sent to as server 20.
Preferably, in this embodiment, the user interactive module 102 of described mobile terminal 10 also for the prompting message of reception server 20, and by the confirmation of User Interface feedback user or abandon instruction to server 20.
In embodiments of the present invention, described mobile terminal 10 can be mobile phone, panel computer or onboard system on any user's vehicle.
Mobile terminal 10 and server 20, all carry out information transmission by the network communications technology between server 20 and Car license recognition equipment 30; In an embodiment of the present invention, the network communication protocol of employing can be ICP/IP protocol, http protocol, File Transfer Protocol etc.
In the present invention one application scenarios, the position location determination user vehicle based on WIFI is adopted to enter predeterminable area.
Particularly, mobile terminal 10 enters after in WIFI hot spot region, community, can automatic search to the mark of described WIFI hot spot and/or hardware address, if in advance enter the mark of the WIFI hot spot of sluice gate appointed area to district vehicles and/or hardware address carries out pre-acquired and be stored in mobile terminal area judging in APP or regional determination module, and when the WIFI module of mobile terminal 10 scans mark and/or the hardware address of described WIFI hot spot, namely regional determination APP or regional determination module judge that mobile terminal 10 enters predeterminable area.
Therefore, then mobile terminal 20 does not need WIFI wireless connections, only need scan mark and/or the hardware address of described WIFI hot spot, that is, location, the described position based on WIFI can realize the present invention.
Be understandable that, the location, position based on bluetooth, base station is all located similar with the described position based on WIFI, also can realize the present invention.
In the present invention one application scenarios, the position location determination user vehicle based on GPS is adopted to enter predeterminable area.
Particularly, implement in scene in the present invention one, user is the user having pre-tally and user profile on server 20.Such as, the T moment, the regional determination module 105 of the mobile terminal 10 on vehicle judges that user's vehicle enters predeterminable area, if user authentication module 104 sends the identity information of this user to server 20, server 20 is verified by identity information, after being judged as prestored user, namely establish a communications link with mobile terminal 10; After establishing a communications link, data acquisition module 201 transfers car plate pre-bound with the identity information of this user according to the identity information of this user; On the other hand, server 20 will sail out of the vehicle of predeterminable area car plate during the T-1 moment to T moment is concentrated from T-1 Provisional Number Plate and is deleted, and the car plate that the car plate that T-1 Provisional Number Plate collection is left and T moment enter the vehicle of predeterminable area forms T Provisional Number Plate collection.
Particularly, in the present invention, another is specifically implemented in scene, and user is non-community user, and identity information and car plate are not pre-stored in server 20 by this user.In this scenario, such as, the T moment, the mobile terminal 10 communicated to connect with server 20 sends positional information to server 20, when server 20 judges that user's vehicle enters predeterminable area according to described positional information, by the user interactive module 102 reminding user input car plate of mobile terminal 10, user manually inputs or the mode of phonetic entry inputs car plate at user interactive module 102 interface, and the car plate of input is sent to server 20 by signal transmitting module 103.
Embodiment 2
Fig. 4 is a kind of method flow diagram improving Car license recognition accuracy provided by the invention, and composition graphs 4, the invention provides a kind of method improving Car license recognition accuracy, have employed the system of the raising Car license recognition accuracy that embodiment 1 provides, comprises the following steps:
Server 20 obtains the car plate of all vehicles in predeterminable area, and the car plate of vehicles all in the predeterminable area of acquisition is mapped as Provisional Number Plate collection;
Server 20 obtains the license plate recognition result that Car license recognition equipment 30 sends;
Described license plate recognition result and Provisional Number Plate collection are compared by server 20, and are concentrated by described Provisional Number Plate the car plate the highest with license plate recognition result matching degree to be sent to Car license recognition equipment 30.
Preferably, the method for described raising Car license recognition accuracy also comprises: identity validation step.
Described identity validation step comprises:
The regional determination module 105 of mobile terminal 10 judges that mobile terminal 10 enters predeterminable area, and establishes a communications link with server 20 immediately or ask to establish a communications link with server 20;
Wherein, ask in the step established a communications link with server 20 at mobile terminal 10, the subscriber identity information that the user authentication module 104 that server 20 receives described mobile terminal 10 sends, the SIM 204 of server 10 carries out subscriber authentication according to subscriber identity information, and when being proved to be successful, set up the communication connection of server 20 and mobile terminal 10.
Described identity information can be the physical label address of user name, user cipher authentication information and/or described mobile terminal or vehicle module.
In an embodiment of the present invention, described server 20 obtains all vehicle license plates in predeterminable area, and the step car plate of vehicles all in the predeterminable area of acquisition being mapped as Provisional Number Plate collection comprises:
Server 20 obtains the N that the T moment enters predeterminable area
(t)the car plate of car, and the car plate of other all vehicles in predeterminable area described in the Real-time Obtaining T moment, by N
(t)in predeterminable area described in the car plate of car and T moment, the car plate of other all vehicles is mapped as T Provisional Number Plate collection.
Preferably, in this embodiment, described server 20 obtains the N that the T moment enters predeterminable area
(t)the step of the car plate of car comprises:
Server 20 obtains the identity information that the mobile terminal 10 that enters predeterminable area by the T moment sends, and transfers the pre-bound N with this identity information according to described identity information
(t)the car plate of car.
Described identity information can be the physical label address of user name, user cipher authentication information and/or described mobile terminal or vehicle module.
Preferably, in this embodiment, described server 20 obtains the N that the T moment enters predeterminable area
(t)the step of the car plate of car comprises:
Server 20 obtains the N that the mobile terminal 10 that enters predeterminable area by the T moment sends
(t)the car plate of car.
More preferably, the N that the mobile terminal 10 that the described T moment enters predeterminable area sends
(t)the car plate of car by the user on this vehicle manually or phonetic entry to described mobile terminal 10.
Preferably, in this embodiment, in predeterminable area described in the described Real-time Obtaining T moment, the step of other all vehicle license plates comprises:
During from the T-1 moment to the T moment, sail out of the car plate of the vehicle of predeterminable area from the concentrated removal of T-1 Provisional Number Plate, obtain the car plate of other all vehicles in predeterminable area described in the T moment;
Wherein, N
(t-1)car enters predeterminable area in the T-1 moment, N
(t)car enters predeterminable area in the T moment.
For community, in the present invention one embody rule scene, the region of outer 100 meters of gate, community brake mouth is set to predeterminable area P.8 o'clock, the vehicle A of community resident enters predeterminable area P, mobile terminal 10 (being preferably onboard system) judges that vehicle A enters predeterminable area, mobile terminal 10 sends identity information to server 20, server 20 is verified by identity information, after being judged as prestored user, namely establish a communications link with mobile terminal 10; After establishing a communications link, server 20 transfers the pre-bound car plate with this identity information according to this identity information, such as Guangdong A82345.
On the other hand, in 7: 50, the vehicle B of community resident enters predeterminable area P, now always have 5 cars in predeterminable area P, the car plate of these 5 liang of cars is mapped as the first Provisional Number Plate collection by server 20, and the car plate that described first Provisional Number Plate is concentrated is respectively Guangdong A52445, Guangdong A25345, Guangdong A55556, Guangdong A77456, Guangdong A88856.Then, when 7: 55 and 7: 58, car plate is that the two cars of Guangdong A77456 and Guangdong A88856 is taken up in order of priority and has been sailed out of predeterminable area, and now the car plate of described two cars is concentrated from the first Provisional Number Plate and deleted by server 20; When 8 o'clock, when vehicle A enters predeterminable area, car plate is that the two cars of Guangdong A77456 and Guangdong A88856 has sailed out of predeterminable area, now the car plate of the first Provisional Number Plate collection and vehicle A that delete Guangdong A77456 and Guangdong A88856 two car plates is merged, form the second Provisional Number Plate collection, the car plate that now the second Provisional Number Plate is concentrated is respectively Guangdong A82345, Guangdong A52445, Guangdong A25345, Guangdong A55556.
Due to light change, the objective factors such as the dust in light path, the Car license recognition module (such as CCTV camera) of Car license recognition equipment 30 is Guangdong AB2345 to the license plate recognition result of vehicle A, and result is sent to server 20.Car plate in license plate recognition result Guangdong AB2345 and Provisional Number Plate collection two is compared by server 20, now Provisional Number Plate integrates car plate the highest with license plate recognition result matching degree in two as Guangdong A82345, Guangdong A82345 is sent to Car license recognition equipment 30 by server 20, and in Car license recognition equipment 30, car plate output module 304 (such as electronic display) exports car plate Guangdong A82345.
In another embody rule scene of the present invention, there are three passages of driving a vehicle community, and the region of outer 100 meters of gate, community brake mouth is set to predeterminable area P.8 o'clock, vehicle A1, A2, A3 of community resident enter predeterminable area P from three driving passages simultaneously, mobile terminal 10 (being preferably onboard system) on vehicle A1, A2, A3 judges that vehicle A1, A2, A3 enter predeterminable area respectively, mobile terminal 10 on vehicle A1, A2, A3 sends identity information respectively to server 20, server 20 is verified by identity information, after being judged as prestored user, namely establish a communications link with the mobile terminal 10 on vehicle A1, A2, A3 respectively; After establishing a communications link, server 20 transfers the pre-bound car plate with this identity information according to identity information, and such as vehicle A1 car plate is Guangdong A82341, vehicle A2 car plate is Guangdong A82342, vehicle A3 car plate is Guangdong A82343.
On the other hand, in 7: 50, the vehicle B of community resident enters predeterminable area P, now always have 5 cars in predeterminable area P, the car plate of these 5 liang of cars is mapped as the first Provisional Number Plate collection by server 20, and the car plate that described first Provisional Number Plate is concentrated is respectively Guangdong A52445, Guangdong A25345, Guangdong A55556, Guangdong A77456, Guangdong A88856.Then, when 7: 55 and 7: 58, car plate is that the two cars of Guangdong A77456 and Guangdong A88856 is taken up in order of priority and has been sailed out of predeterminable area, and now the car plate of described two cars is concentrated from the first Provisional Number Plate and deleted by server 20; When 8 o'clock, when vehicle A enters predeterminable area, car plate is that the two cars of Guangdong A77456 and Guangdong A88856 has sailed out of predeterminable area, now the car plate of the first Provisional Number Plate collection and vehicle A that delete Guangdong A77456 and Guangdong A88856 two car plates is merged, form the second Provisional Number Plate collection, the car plate that now the second Provisional Number Plate is concentrated is respectively Guangdong A82341, Guangdong A82342, Guangdong A82343, Guangdong A52445, Guangdong A25345, Guangdong A55556.
The Car license recognition module (such as CCTV camera) of Car license recognition equipment 30 is Guangdong AB2341 to the license plate recognition result of vehicle A1, and result is sent to server 20.Car plate in license plate recognition result Guangdong AB2341 and Provisional Number Plate collection two is compared by server 20, now Provisional Number Plate integrates car plate the highest with license plate recognition result matching degree in two as Guangdong A82341, Guangdong A82341 is sent to Car license recognition equipment 30 by server 20, and in Car license recognition equipment 30, car plate output module 304 (such as electronic display) exports car plate Guangdong A82341.
Therefore, scheme provided by the invention, can avoid current Car license recognition device sensitivity not high cause misread, always to describe just as implementing scene, even if Guangdong A82345 is identified as Guangdong AB2345 by Car license recognition equipment, but, adopt scheme provided by the invention still can judge accurate car plate in real time, efficiently.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. improve a method for Car license recognition accuracy, it is characterized in that, described method comprises:
Obtain the car plate of all vehicles in predeterminable area, and the car plate of vehicles all in the predeterminable area of acquisition is mapped as Provisional Number Plate collection;
Obtain the license plate recognition result that Car license recognition equipment sends;
Described license plate recognition result and Provisional Number Plate collection are compared, is concentrated by described Provisional Number Plate the car plate the highest with described license plate recognition result matching degree to send to Car license recognition equipment.
2. the method improving Car license recognition accuracy as claimed in claim 1, it is characterized in that, the car plate of all vehicles in described acquisition predeterminable area, and the step car plate of vehicles all in the predeterminable area of acquisition being mapped as Provisional Number Plate collection comprises:
Obtain the N that the T moment enters predeterminable area
(t)the car plate of car, and the car plate of other all vehicles in predeterminable area described in the Real-time Obtaining T moment, enter the N of predeterminable area by the described T moment
(t)in predeterminable area described in the car plate of car and T moment, the car plate of other all vehicles is mapped as T Provisional Number Plate collection, and wherein, N is natural number, N
(t)expression enters the vehicle number of predeterminable area in the T moment.
3. the method improving Car license recognition accuracy as claimed in claim 2, it is characterized in that, described acquisition enters the N of predeterminable area
(t)the step of the car plate of car comprises:
Acquisition enters the N of predeterminable area by the T moment
(t)the identity information that mobile terminal on car or vehicle module send, transfers the pre-bound N with this identity information according to described identity information
(t)the car plate of car; Or
Acquisition enters the N of predeterminable area by the T moment
(t)the N that mobile terminal on car or vehicle module send
(t)the car plate of car.
4. the method improving Car license recognition accuracy as claimed in claim 2, is characterized in that, in predeterminable area described in the described Real-time Obtaining T moment, the step of the car plate of other all vehicles comprises:
During from the T-1 moment to the T moment, sail out of the car plate of the vehicle of predeterminable area from the concentrated removal of T-1 Provisional Number Plate, obtain the car plate of other all vehicles in predeterminable area described in the T moment;
Wherein, N
(t-1)car enters predeterminable area in the T-1 moment, N
(t)car enters predeterminable area in the T moment; Described T-1 Provisional Number Plate collection is the N being entered predeterminable area the described T-1 moment
(t-1)in predeterminable area described in the car plate of car and T-1 moment, the car plate of other all vehicles maps gained.
5. improve a device for Car license recognition accuracy, it is characterized in that, comprising:
Data acquisition module, for obtaining the car plate of all vehicles in predeterminable area and the license plate recognition result for obtaining the transmission of Car license recognition equipment;
Mapping block, is mapped as Provisional Number Plate collection for the car plate of all vehicles in the predeterminable area that obtained by data acquisition module;
Data analysis module, the Provisional Number Plate collection mapped for the license plate recognition result sent by Car license recognition equipment that obtained by data acquisition module and memory module is compared, and is concentrated by described Provisional Number Plate the car plate the highest with license plate recognition result matching degree to send to Car license recognition equipment.
6. the as claimed in claim 5 device improving Car license recognition accuracy, is characterized in that, described data acquisition module specifically for: obtain the N that the T moment enters predeterminable area
(t)the car plate of car, and the car plate of other all vehicles in predeterminable area described in the Real-time Obtaining T moment;
Then described mapping block specifically for: by N
(t)in predeterminable area described in the car plate of car and T moment, the car plate of other all vehicles is mapped as T Provisional Number Plate collection.
7. the as claimed in claim 5 device improving Car license recognition accuracy, is characterized in that, described data acquisition module specifically for: obtain the N that the T moment enters predeterminable area
(t)the car plate of car, and the car plate sailing out of the vehicle of predeterminable area during obtaining from the T-1 moment to the T moment; Wherein, N
(t-1)car enters predeterminable area in the T-1 moment, N
(t)car enters predeterminable area in the T moment;
Then described mapping block specifically for: by described from the T-1 moment to the T moment during sail out of the vehicle of predeterminable area car plate to concentrate from T-1 Provisional Number Plate and remove, obtain the car plate of other all vehicles interior of predeterminable area described in the T moment; Then by described N
(t)in predeterminable area described in the car plate of car and T moment, the car plate of other all vehicles is mapped as T Provisional Number Plate.
8. a terminal, is characterized in that, comprises the device of the raising Car license recognition accuracy as described in any one of claim 5-7.
9. a Car license recognition equipment, is characterized in that, comprises Car license recognition module, information sending module and information receiving module, and wherein, described Car license recognition module, for identifying car plate, obtains license plate recognition result; Described information sending module is used for license plate recognition result as described in the device transmission as described in any one of claim 5-7; The car plate comparison result that described information receiving module sends for the device received as described in any one of claim 5-7.
10. improve a system for Car license recognition accuracy, it is characterized in that, comprise mobile terminal, Car license recognition equipment as claimed in claim 9 and the device as described in any one of claim 5-7; Wherein,
Described mobile terminal is used for the device identity information of corresponding vehicle or car plate sent to as described in any one of claim 5-7, and wherein, described mobile terminal is positioned on described corresponding vehicle;
Described Car license recognition equipment as claimed in claim 9, for identifying vehicle license plate, obtains license plate recognition result, and described license plate recognition result is sent to the device as described in any one of claim 5-7; Described Car license recognition equipment as claimed in claim 9 is also for receiving the car plate comparison result of the device transmission as described in any one of claim 5-7.
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| CN201510559740.3A CN105096608A (en) | 2015-09-02 | 2015-09-02 | Method, device and system for improving identification accuracy of license plates |
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| CN201510559740.3A CN105096608A (en) | 2015-09-02 | 2015-09-02 | Method, device and system for improving identification accuracy of license plates |
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