WO2017022268A1 - Vehicle identification device and vehicle identification system comprising same - Google Patents

Abstract

A vehicle identification device (10) that identifies vehicles having at least two types of vehicle identification numbers on an outer surface thereof. The vehicle identification device (10) comprises an image acquisition unit (11), first and second vehicle number reading units (13, 14), and a vehicle identification unit (16). The image acquisition unit (11) obtains images captured by a camera (20). The first and second vehicle number reading units (13, 14) read numbers, included in the images, from a number plate (41) and from a display number plate (42). The vehicle identification unit (16) identifies vehicles on the basis of the numbers read by the first and second vehicle number reading units (13, 14).

Description

Vehicle identification device and vehicle identification system provided with the same

The present invention relates to a vehicle identification device that identifies a specific vehicle such as a large truck or a taxi, and a vehicle identification system including the vehicle identification device.

In addition to license plates, specific vehicles such as large vehicles (such as dump trucks for transporting earth and sand) and taxis are required to display (numbers, letters, etc.) for identifying each vehicle.
For example, in Patent Document 1, a method and an apparatus for accurately detecting characters such as “danger”, “poison”, “drama” and the like indicating a specific object loaded vehicle to detect whether the vehicle is a specific object loaded vehicle Is disclosed. However, it is difficult to identify the specific object loaded vehicle, its owner, or the like only by detecting characters such as “danger”.

Also, for example, Patent Document 2 discloses a method for accurately recognizing a number displayed on a container mounted on a truck. In this document, the license plate number and the container number image are obtained, and the container reservation number corresponding to the license plate number is compared with the container number obtained from the image, so that the number displayed on the container is obtained. Recognize correctly. However, the vehicle can only be identified by image processing of the license plate image. For this reason, for example, when dirt or the like adheres to the surface of the license plate, it may be difficult to identify the vehicle.

JP 2003-85480 A JP 2003-31856 A

An object of the present invention is to provide a vehicle identification device capable of accurately identifying a specific vehicle to which two or more types of vehicle identification numbers such as large trucks and taxis are attached to the outer surface, and a vehicle identification system including the vehicle identification device. It is to provide.
A vehicle identification device according to a first invention is a vehicle identification device that identifies a vehicle having two or more types of vehicle identification numbers attached to the outer surface, and includes an image acquisition unit, a vehicle number reading unit, a vehicle identification unit, It is equipped with. The image acquisition unit acquires an image captured by the imaging device. The vehicle number reading unit reads at least one of the first vehicle identification number and the second vehicle identification number included in the image. A vehicle specific | specification part specifies a vehicle based on the number read in the vehicle number reading part.

Here, for example, a specific vehicle that is required to display another vehicle specific number (second vehicle specific number) in addition to the number of the license plate (first vehicle specific number) is photographed by an imaging device such as a camera. The acquired image is acquired, and the vehicle is specified by reading two or more types of vehicle specifying numbers (first vehicle number reading unit and second vehicle specifying number).
Here, the first vehicle identification number includes, for example, the number of a license plate that is required to be displayed for all vehicles. The second vehicle identification number includes, for example, a number that is required to be displayed for a special vehicle such as a large truck. In addition to the first vehicle identification number, examples of the vehicle that needs to display the second vehicle identification number include a large truck such as a dump truck, a construction machine that can travel on a general road, a bus, and a taxi.

Moreover, the image acquired by the image acquisition unit is photographed so as to include a vehicle passing through the intersection or the like by a camera (imaging device) or the like installed at an intersection or an expressway entrance, for example. Note that the image acquired by the image acquisition unit may be a still image or a moving image.
Furthermore, in the vehicle specifying unit, for example, the vehicle is specified using the read first vehicle number reading unit and the second vehicle specifying number while referring to registration information of the vehicle supplied from the outside.

As a result, for vehicles that are required to display two or more types of vehicle identification numbers, for example, even if the first vehicle identification number is dirty with mud or the like and difficult to read, it is included in the image taken by the camera or the like. The vehicle can be identified by reading the second vehicle identification number.
As a result, the driver or owner of the specified vehicle can be specified. Furthermore, when the identified vehicle is a vehicle that has committed a traffic violation, the violation vehicle can be controlled using an image.

A vehicle identification device according to a second invention is the vehicle identification device according to the first invention, and the vehicle number reading unit reads both the first vehicle identification number and the second vehicle identification number.
Here, for a vehicle having two or more types of vehicle identification numbers attached to the outer surface, both the first vehicle identification number and the second vehicle identification number are read to identify the vehicle.
Thereby, for example, even when one of the first vehicle identification number and the second vehicle identification number is dirty with mud or the like and difficult to read, the first vehicle identification number and the second vehicle identification number included in the image photographed by the camera or the like are used. By reading both of the vehicle identification numbers, the vehicle can be identified.

A vehicle identification device according to a third invention is the vehicle identification device according to the first or second invention, wherein the vehicle identification unit is configured to identify the first vehicle based on information on an image acquired by the image acquisition unit. The vehicle is identified using the second vehicle identification number when it is determined that the identification of the vehicle is not sufficient using the number.
Here, the priority order of the vehicle identification number read when identifying the vehicle is set.

Accordingly, first, for example, the first vehicle identification number can be read using an image obtained by photographing the front of the vehicle. Next, when it is difficult to read the first vehicle identification number and it is determined that the vehicle identification is insufficient, for example, the second vehicle identification number can be read using an image obtained by photographing the vehicle side surface. .
A vehicle identification device according to a fourth aspect of the present invention is the vehicle identification device according to the third aspect of the present invention, wherein the first vehicle identification number is a vehicle number of a license plate installed on the front and rear surfaces of the vehicle. The second vehicle identification number is a display number unique to the vehicle displayed on the outer surface of the vehicle.

Here, the vehicle number of the license plate that is obliged to be installed on each of the front and rear surfaces of the vehicle is listed as the first vehicle identification number. As the second vehicle identification number, for example, a vehicle-specific display number that is required to be displayed on a large truck such as a dump truck, a construction machine such as a wheel loader or a crane truck, or a specific vehicle such as a bus or taxi is cited.
Thus, even when the traveling vehicle photographed by the camera or the like is difficult to read the vehicle number of the license plate due to mud or the like, the vehicle is detected by reading another vehicle identification number (second vehicle identification number). Can be identified.

Furthermore, even if it is difficult to read the number on the license plate when a traffic violation of a specific vehicle such as a large truck is detected, the vehicle is identified by reading the vehicle-specific display number (second vehicle specific number). And control traffic violations.
A vehicle specifying device according to a fifth aspect of the present invention is the vehicle specifying device according to the third or fourth aspect of the present invention, further comprising an owner specifying unit that specifies the owner of the vehicle specified by the vehicle specifying unit. Yes.

Here, the owner of the vehicle identified by reading either one of the first vehicle number reading unit and the second vehicle identification number is identified.
Here, the owner specifying unit uses the read first vehicle number reading unit and second vehicle specifying number while referring to, for example, registration information of a vehicle supplied from the outside, in the same manner as the vehicle specifying unit. Identify the owner of the vehicle.

For example, if the specified vehicle has committed a traffic violation, notify the owner of the vehicle of the number of violations or request a fine for traffic control. Can do.
A vehicle identification device according to a sixth aspect of the present invention is the vehicle identification device according to any one of the third to fifth aspects, wherein the image acquired by the image acquisition unit and the vehicle specified by the vehicle specification unit A storage unit for storing information is further provided.

Here, the image acquired in the image acquisition unit and the vehicle information specified in the vehicle specifying unit are stored in the storage unit.
As a result, for example, a traffic violation can be controlled afterwards using the image and vehicle information stored in the storage unit.
A vehicle identification device according to a seventh aspect of the invention is the vehicle identification device according to any one of the third to sixth aspects of the invention, wherein the violation detection detects whether there is a traffic violation of the vehicle specified by the vehicle specification unit. The unit is further provided.

Here, the presence or absence of traffic violation is detected for the vehicle specified by the vehicle specifying unit.
Thereby, when a vehicle is specified by the vehicle specifying unit described above, it is possible to control traffic violation by detecting the presence or absence of traffic violation of the vehicle.
A vehicle identification device according to an eighth aspect of the present invention is the vehicle identification device according to any one of the third to seventh aspects, further comprising a vehicle type determination unit that determines the vehicle type of the vehicle. The vehicle specifying unit specifies the vehicle using the first vehicle specifying number and the second vehicle specifying number based on the vehicle type information determined by the vehicle type determining unit.

Here, for example, the vehicle type included in the image taken by the camera or the like is determined. If it is determined that the vehicle is a specific vehicle that is required to display two or more types of vehicle identification numbers as a result of the vehicle type identification, the reading results of the first vehicle identification number and the second vehicle identification number are used. To identify the vehicle.
Here, in the vehicle type discrimination in the vehicle type discrimination unit, in addition to the method using the above image, a method using a detection result of a sensor or the like that detects the size (full length, full width, height, etc.) or shape of the vehicle is adopted. May be.

Thereby, after determining whether or not the vehicle is a specific vehicle that is required to display two or more types of vehicle specific numbers, the vehicle specific number can be read only for the specific vehicle.
A vehicle identification device according to a ninth aspect is the vehicle identification device according to any one of the third to eighth aspects, wherein the first vehicle identification number and the second vehicle identification number are on different surfaces of the vehicle. It is attached.

Here, two or more types of numbers (a first vehicle number reading unit and a second vehicle identification number) assigned to the vehicle to identify the vehicle are respectively attached to different surfaces of the vehicle.
For example, the first vehicle identification number is attached to the front and rear surfaces of the vehicle, and the second vehicle identification number is attached to the side surface of the vehicle.
As a result, at least one of the vehicle identification numbers can be read regardless of the direction of the vehicle in which the image captured by the imaging device is captured.

Therefore, the vehicle can be identified by reading at least the vehicle identification number more reliably.
A vehicle identification system according to a tenth aspect of the invention is a vehicle identification device according to any one of the third to ninth aspects, an imaging device that supplies an image captured to an image acquisition unit of the vehicle identification device, It has.

Here, the vehicle identification system is configured using the vehicle identification device described above and an imaging device that supplies an image including the vehicle to the vehicle identification device.
Thereby, for example, it is possible to take an image of a vehicle passing by a camera (imaging device) installed at an intersection, an entrance of an expressway, or the like, and to identify the vehicle using the image.

The imaging device is preferably installed at a position where the front or rear surface of the vehicle can be photographed so that, for example, an image that allows easy reading of the number on the license plate can be obtained. For example, when the 2nd vehicle specific number is installed in the side of a vehicle, it is preferred that the imaging device is installed in the position which can photograph the side of a vehicle.
A vehicle identification system according to an eleventh aspect is the vehicle identification system according to the tenth aspect, wherein the imaging device captures at least one of front, rear and side images of the vehicle.

Here, for example, the image pickup device is installed so that an image obtained by photographing the front and rear surfaces of the vehicle for reading the first vehicle identification number and an image obtained by photographing the side surface of the vehicle for reading the second vehicle identification number are obtained. The position is set.
Thereby, about the specific vehicle in which the display of two or more types of vehicle specific numbers was obliged, at least one of a 1st vehicle number reading part and a 2nd vehicle specific number can be read using these images.

A vehicle identification system according to a twelfth aspect includes the vehicle identification device according to the fifth aspect, and an information management apparatus that provides information necessary for identifying a vehicle or a vehicle owner in the vehicle identification unit.
Here, information necessary for specifying the vehicle in the vehicle specifying unit and specifying the owner of the vehicle in the owner specifying unit is acquired from an external information management device.

Here, the external information management device may be, for example, a management device owned by a police station, a local government, a national organization, or the like.
Thereby, the information required for specifying the vehicle and the owner of the vehicle can be obtained from the outside.
(The invention's effect)
According to the vehicle identification device according to the present invention, for example, a specific vehicle to which two or more types of vehicle identification numbers such as a large truck and a taxi are attached to the outer surface can be accurately identified.

The block diagram which shows the structure of the vehicle specific device which concerns on one Embodiment of this invention, and a vehicle specific system provided with the same. The figure which shows the structure of the memory | storage part contained in the vehicle specific device of FIG. The block diagram which shows the structure of the violation detection part contained in the vehicle specific device of FIG. The perspective view which shows the large sized truck specified in the vehicle specific system of FIG. (a) is a figure which shows an example of the number of the number plate each attached | subjected to the front surface and rear surface of the large sized truck of FIG. (B) is a figure which shows an example of the display number attached | subjected to the both sides and rear surface of the large sized truck of FIG. 4, respectively. The perspective view which shows the intersection in which the camera contained in the vehicle specific system of FIG. 1 was installed. (A) is a figure which shows the state at the time of image | photographing the image of the front surface of a large truck with the camera contained in the vehicle identification system of FIG. (B) is a figure which shows the state at the time of image | photographing the rear surface of a large sized truck with the camera contained in the vehicle identification system of FIG. The top view which shows the state by which a large truck is image | photographed the rear surface with the camera installed in each lane. The top view which shows the state by which a large truck is image | photographed the side surface with the camera installed in the lane side. The figure which shows the image of the track | truck image | photographed with the camera contained in the vehicle identification system of FIG. (A) And (b) is a figure which shows the display mode of the traffic violation (overspeed) containing the image image | photographed with the camera contained in the vehicle specific system of FIG. The figure which shows the display mode of the traffic violation (signal ignorance) containing the image image | photographed with the camera contained in the vehicle identification system of FIG. The figure which shows the structural example of the vehicle specific system which concerns on other embodiment of this invention. The figure which shows the installation position of the camera contained in the vehicle specific system which concerns on further another embodiment of this invention.

A vehicle specifying apparatus and a vehicle specifying system including the same according to an embodiment of the present invention will be described below with reference to FIGS.
(Configuration of vehicle identification system 1)
The vehicle identification system 1 according to the present embodiment identifies a specific vehicle and its owner by using two or more types of vehicle identification numbers for a specific vehicle such as a large truck 40 (see FIG. 4) for transporting earth and sand. . In the vehicle identification system 1, information regarding the identified vehicle and its owner is used for the control of a violating vehicle that has committed a traffic violation, a claim for a breach, etc.

Here, the specific vehicle indicates the display number 42 (see FIG. 5B) on the side of the vehicle, etc. separately from the number plate 41 (see FIG. 5A) attached to the front and rear surfaces of the vehicle. A vehicle that has an obligation to do so.
As shown in FIG. 1, the vehicle identification system 1 of the present embodiment includes a vehicle identification device 10 and a camera 20.

Here, in addition to the large truck 40 shown in FIG. 4, vehicles specified in the vehicle specifying system 1 include self-propelled construction machines (wheel loaders, large crane vehicles, etc.), connected vehicles such as trailers, buses, Other vehicles that are required to display two or more types of vehicle identification numbers, such as taxis, are also included. Note that these target vehicle types vary depending on national and regional regulations.

In the vehicle identification system 1, the violation detection unit 15 included in the vehicle identification device 10 detects the traffic violation of the identified vehicle. Thereby, in a police station etc., the violation vehicle and its owner etc. can be controlled using the detected violation information, the information of the violation vehicle, the information of the owner, etc.
In addition, as a predetermined point where a traffic violation is detected, for example, an intersection where an infrastructure device is installed, a point on a specific road, or an ETC (Electronic Toll Collection System) installed at the entrance of an expressway A passing point can be considered.

In addition, as two or more types of vehicle identification numbers assigned to vehicles identified in the vehicle identification system 1, the number (first vehicle identification number) of the number plate 41 shown in FIG. The display number 42 (second vehicle identification number) shown in b) is included.
As shown in FIG. 4, the license plate 41 is attached to the front surface and the rear surface of the large truck 40, respectively. The number on the license plate 41 is a number assigned to all automobiles registered with a national institution or the like, and means, for example, an automobile registration number mark defined by the laws of each country. The number of the license plate 41 is, for example, a number such as “Shinagawa 000 A 00-00” as shown in FIG.

As shown in FIG. 4, the display number 42 is displayed on each of the left and right side surfaces and the rear surface of the large truck 40. And the display number 42 is a number described on both side surfaces and the back surface of a specific vehicle such as a large dump truck that transports earth and sand, for example, as a number different from the registration number of the number plate of the automobile, Or “number”. Further, as shown in FIG. 5B, the display number 42 is a number such as “Shinagawa Soseki Pass 23456”, for example.

And the vehicle identification system 1 of this embodiment is comprised so that the vehicle identification device 10, the camera 20, and the sensor 21 may be included, as shown in FIG.
(Vehicle identification device 10)
The vehicle identification device 10 of the present embodiment is provided, for example, in an infrastructure device installed on a road. Then, the vehicle identification device 10 identifies the vehicle included in the image using the image taken by the camera 20, and detects the presence or absence of a traffic violation using the image of the camera 20, the detection result of the sensor 21, or the like. .

Specifically, as shown in FIG. 1, the vehicle identification device 10 includes an image acquisition unit 11, a vehicle type determination unit 12, a first vehicle number reading unit 13, a second vehicle number reading unit 14, a violation detection unit 15, and a vehicle. A specifying unit 16, an owner specifying unit 17, and a storage unit 18 are provided.
The image acquisition unit 11 acquires a plurality of images including a vehicle photographed by the camera 20. The image acquired by the image acquisition unit 11 includes not only a still image but also a moving image.

The vehicle type determination unit 12 uses the image acquired by the image acquisition unit 11 to determine the vehicle type of the vehicle included in the image. The types of vehicles to be identified include ordinary passenger cars, specific vehicles such as taxis and buses, construction machines that can travel (wheel loaders, crane cars, etc.), and special vehicles including large trucks such as dump trucks.
Further, as a criterion for discrimination in the vehicle type discriminating unit 12, the size and ratio of the length, width, height, etc. of the vehicle, the shape of the vehicle, the color and size of the license plate, and the like can be considered. That is, the vehicle type determination unit 12 estimates the vehicle type of the vehicle in the image based on information included in the image information acquired by the image acquisition unit 11 or a detection result of the sensor 21.

Thereby, the vehicle specifying process in the vehicle specifying unit 16 described later can be selectively performed depending on the vehicle type. That is, a specific vehicle that is required to display two or more types of vehicle specific numbers to be specified by the vehicle specific device 10 can be selected according to the vehicle type. For this reason, the process in the vehicle specific | specification part 16 can be significantly improved compared with the case where vehicle identification is implemented about all the vehicles contained in an image.

The 1st vehicle number reading part 13 reads the number of the license plate 41 of the vehicle contained in an image using the image acquired in the image acquisition part 11. FIG. Specifically, the 1st vehicle number reading part 13 detects the part of the number plate 41 contained in an image by image processing, and reads a number, a character, etc.
Since the number plate 41 read by the first vehicle number reading unit 13 is provided on the front and rear surfaces of the vehicle, the images used for reading are images obtained by photographing the front or the rear surface of the vehicle. The

The second vehicle number reading unit 14 reads the display number 42 of the vehicle included in the image using the image acquired by the image acquisition unit 11. Specifically, the second vehicle number reading unit 14 enlarges the portion of the display number 42 included in the image by image processing, and reads numbers and the like.
The display number 42 read by the second vehicle number reading unit 14 is provided on the left and right side surfaces and the rear surface of the vehicle. For this reason, the image used for reading is an image obtained by photographing at least one of the side surface and the rear surface of the vehicle.

The violation detector 15 detects violations of traffic rules defined by laws and the like.
Specifically, as shown in FIG. 1 and FIG. 3, the violation detection unit 15 uses the image information and the sensor detection result, and based on the violation information regarding the traffic violation stored in the storage unit 18, If it is determined that the verification condition is satisfied, the presence or absence of traffic violation is detected. That is, the violation detection unit 15 detects the presence or absence of a traffic violation based on the image information captured by the camera 20 and the detection result of the sensor 21.

As shown in FIG. 3, the violation detection unit 15 includes a DB (database) 15a and a determination unit 15b.
The DB 15a stores verification conditions necessary for verifying traffic violations.
Here, the verification conditions for verifying the traffic violation include, for example, information regarding switching of traffic lights at an intersection where the camera 20 is installed in the case of ignoring the signal. Furthermore, in the case of an overspeed violation, information on speed limit on the road where the camera 20 is installed, imaging speed of the camera 20, settings for detecting the traveling speed of the large truck 40 by the sensor 21 such as a speed control radar, etc. Contains information.

Also, the image conditions that can be used to prove traffic violations mean the conditions that the image content that serves as evidence must satisfy for each traffic violation. For example, a condition that an identifiable violation vehicle and a driver's face must be included in one image, or a combination of multiple images, a violation vehicle and a person that can be identified in each image For example, it must be included in a verifiable state.

In addition, the conditions regarding this image should just be set based on the law prescribed | regulated in each country, and may differ for every country and every local government.
The determination unit 15b compares the verification conditions stored in the DB 15a with information acquired from the camera 20, the sensor 21, and the like, and determines whether there is a traffic violation. If it is determined that there is a traffic violation, the violation content (name of violation, etc.) is specified.

In addition, as detection of the traffic violation using an image, you may set a processing area for every function in an image of 5 million pixels, for example. For example, an area including a traffic light is set as a red signal detection processing area, an area from the vicinity of the stop line at the intersection to the lower side of the traffic light is set as a vehicle detection / tracking processing area, and an area near the stop line is set as a vehicle number detection processing area. Set as.
In the red signal detection processing area, the timing at which the red signal is changed by the image processing is detected, which serves as a trigger for detecting a violation vehicle that ignores the red signal.

In the vehicle detection / tracking processing area, lane change / lane crossing of the target vehicle, red light ignorance, illegal right / left turn / U-turn, reverse running, illegal parking, etc. are detected. Furthermore, in this area, it is also possible to collect various types of traffic information (for example, traffic volume, occupation rate, inter-vehicle distance, etc.).
In the vehicle number detection processing area, since it is a close position in the image, the vehicle number is detected from the rear surface of the target vehicle by image processing.

The vehicle identification unit 16 uses the reading results in the first vehicle number reading unit 13 and the second vehicle number reading unit 14 and the information on the registered vehicle acquired from the information management device 30 and stored in the storage unit 18. Identify the vehicle.
Specifically, the vehicle identification unit 16 first refers to the registered vehicle information stored in the storage unit 18 in advance based on the number of the license plate 41 read by the first vehicle number reading unit 13. The vehicle information is specified. And in the 1st vehicle number reading part 13, when the number of the number plate 41 cannot be recognized correctly, the vehicle specific | specification part 16 and the display number 42 read in the 2nd vehicle number reading part 14 and a memory | storage part beforehand The vehicle information stored in 18 is specified.

The reason why the number of the license plate 41 cannot be accurately recognized is that there are problems on the image side such as the shooting angle of the vehicle in the image and the sharpness of the image, and problems on the vehicle side such as the surface of the license plate 41 being dirty. You could think so.
That is, in the vehicle specifying device 10 of the present embodiment, first, the vehicle is specified by reading the numbers of the license plates 41 attached to the front and rear surfaces of the large truck 40. Here, when it is determined that the identification of the vehicle based on the number on the license plate 41 is insufficient, secondly, the display numbers 42 attached to the left and right side surfaces of the loading platform of the large truck 40 are read to read the vehicle Identify.

Here, the case where the specification of the vehicle is insufficient means that the vehicle information is specified or the vehicle owner is identified due to the above-mentioned problem on the image side or the vehicle side despite the attempt to read the number on the license plate 41. The case where it cannot identify is considered.
Thus, even when it is difficult to read the numbers on the license plate 41 due to the shooting angle of the large truck 40 in the image, the vehicle can be identified by reading the display number 42 that is required to be displayed on the specific vehicle. it can.

Here, when only the number on the number plate 41 is read to identify the vehicle, the number on the number plate 41 in the image is read based on dirt, dirt, etc. adhering to the vehicle during travel. May be difficult.
For this reason, in the present embodiment, by reading the display numbers 42 and the like attached to both sides of the loading platform for specific vehicles that are required to display two or more types of vehicle specific numbers, such as the large truck 40, The vehicle can be easily identified.

In particular, as shown in FIG. 4, the number plate 41 is attached to the front surface and the rear surface of the large truck 40, while the display number 42 is attached to both sides of the loading platform of the large truck 40.
That is, two or more types of vehicle identification numbers are assigned to different surfaces of the vehicle, so that at least one of the vehicle identification numbers can be obtained from any direction of the vehicle. Reading is possible.

Therefore, it is possible to more reliably read at least one vehicle identification number and specify the vehicle.
Moreover, in this embodiment, the vehicle type discrimination | determination part 12 determines whether the vehicle type of the vehicle of discrimination | determination object is a vehicle type for which the display of two or more types of vehicle specific numbers was obliged.
And about the vehicle of a specific vehicle type, the vehicle specific | specification part 16 implements specification of a vehicle using the reading result in the 1st vehicle number reading part 13 and the 2nd vehicle number reading part 14. FIG.

This enables efficient detection of vehicles with two or more types of vehicle identification numbers to be identified and identification of specific vehicles with minimal processing compared to the case where vehicle identification is performed for all vehicles. can do.
The owner specifying unit 17 reads information on the vehicle owner stored in the storage unit 18 from the vehicle information specified by the vehicle specifying unit 16 and specifies the owner of the specific vehicle.

Here, the identification of the owner information may be performed based on the vehicle information specified by the first vehicle number reading unit 13 reading the number on the number plate 41 described above. Or the 2nd vehicle number reading part 14 may read based on the vehicle information specified by reading the display number 42. FIG.
Thus, by identifying the owner of the specific vehicle, when a traffic violation of the specified heavy truck 40 is detected, the owner (company, individual) is subjected to traffic violation control, You can contact us about payment of the penalty money.

The storage unit 18 is a storage unit such as a flash memory capable of writing and erasing data. And the memory | storage part 18 was specified in the image information acquired in the image acquisition part 11, the violation information detected in the violation detection part 15, the vehicle information specified in the vehicle specific part 16, and the owner specific part 17 Store owner information in association with each other.
More specifically, as shown in FIG. 2, the storage unit 18 includes an image information storage area 18a, a violation information storage area 18b, a vehicle information storage area 18c, and an owner information storage area 18d.

The image information storage area 18a stores a plurality of pieces of image information including a vehicle photographed by the camera 20 included in the vehicle identification system 1.
The violation information storage area 18b is a result of detection of violations with respect to traffic rules (ordinary traffic laws, etc.) detected by the violation detection unit 15 (existence of violations, types of violations, etc.), violation vehicles and their drivers. Store information.

The vehicle information storage area 18c includes vehicle number information (number plate number, display number 42) of the vehicle specified by the vehicle specifying unit 16, vehicle appearance information (vehicle type, vehicle number, total length, full width, height, etc.), Various information such as load information (type, weight, length, width, etc.) is stored.
The owner information storage area 18d stores information related to the vehicle owner (company name, owner name, face photograph, etc.) specified by the owner specifying unit 17.

Thereby, the vehicle information and the owner information stored in the storage unit 18 are output in association with the image information and the violation information similarly stored in the storage unit 18, for example. It can be used for enforcement.
In addition to specifying the traffic violation vehicle detected in real time, the vehicle information, owner information, image information, and violation information once stored in the storage unit 18 are used for the subsequent traffic violation. Enforcement etc. can be implemented.

In addition, a police officer etc. may confirm the presence or absence of a traffic violation afterwards using the vehicle information, owner information, and image information preserve | saved at the memory | storage part 18, and may enforce a control.
(Camera 20, sensor 21)
As shown in FIG. 6, for example, the camera 20 is attached to a column 111 provided at an intersection where the traffic signal 110 is installed, and includes an image including any one of the front, rear, and left and right sides of the large truck 40. Take a photo of Then, the camera 20 transmits the captured image to the image acquisition unit 11.

Further, as shown in FIG. 7A, the camera 20 may capture an image including the front surface of the large truck 40 before the large truck 40 passes under the camera 20. Alternatively, as shown in FIG. 7B, an image including the rear surface of the large truck 40 may be taken after the large truck 40 passes under the camera 20.
Here, as shown in FIG. 7A, when an image including the front surface of the large truck 40 is taken, the first vehicle number reading unit 13 uses the license plate 41 attached to the front surface of the large truck 40. The number can be read. However, in this case, since an image including the display number 42 cannot be obtained, it is necessary to separately capture an image including the side surface or the rear surface of the large truck 40.

On the other hand, as shown in FIG. 7B, when an image including the rear surface of the large truck 40 is taken, the first vehicle number reading unit 13 and the second vehicle number reading unit 14 The number of the attached number plate 41 and the display number 42 can be read.
Accordingly, when an image including the rear surface of the large truck 40 is taken, the number and display of the number of the license plate 41 are displayed in the first vehicle number reading unit 13 and the second vehicle number reading unit 14 using one image. The number 42 can be read.

However, even in this case, it may be difficult to read the number due to adjustments such as reflection of sunlight. For this reason, it is more preferable to read the number of the number plate 41 and the display number 42 in the first vehicle number reading unit 13 and the second vehicle number reading unit 14 using images taken from different angles.
The image captured by the camera 20 may be, for example, a still image captured when a violation vehicle is detected by the sensor 21 or the like, or a moving image continuously captured regardless of the presence or absence of the violation vehicle. It may be.

The image transmitted to the image acquisition unit 11 is transmitted to the vehicle type determination unit 12, the first vehicle number reading unit 13, the second vehicle number reading unit 14, the violation detection unit 15, and the storage unit 18.
As shown in FIG. 6, the sensor 21 is installed, for example, on a column 111 installed at an intersection or on the side of a road. For example, the sensor 21 detects the traveling speed of the traveling large truck 40 and transmits the detected traveling speed to the violation detection unit 15.

The detection result of the sensor 21 is associated with other image information or the like, and the violation detection unit 15 determines whether or not it can be verified as a traffic violation. Here, when it is determined that the traffic violation can be verified, the information is stored in the storage unit 18 together with the information of the traffic violation (excess speed, etc.), the specified violation vehicle, the owner of the violation vehicle, and the like.
Here, it is preferable that one camera 20 and one sensor 21 are provided for each lane A and B as shown in FIG.

That is, when the camera 20 and the sensor 21 are arranged as shown in FIG. 8, for example, the large truck 40 is detected by the sensor 21, and the rear surface of the large truck 40 passed under the sensor 21 by the camera 20. Images can be taken.
At this time, a pair of cameras 20 and sensors 21 are arranged on the lanes A and B, respectively. For this reason, in each lane A and B, the large truck 40 passing through the detection areas Z1 and Z2 formed under the sensor 21 can be detected and photographed by the camera 20.

Further, in order to capture an image including the side surface of the large truck 40, for example, as shown in FIG. 9, a camera 20a installed on the side of the lane may be used.
In this case, for example, the number of the license plate 41 and the display number 42 can be read by one image by photographing so that the front and side surfaces or the rear and side surfaces of the large truck 40 are included. it can.

Further, even when an image including only the side surface of the large truck 40 is taken, the number of the license plate 41 and the display number 42 can be read by using in combination with the image including the front surface or the rear surface of the large truck 40 described above. Can do.
(Information management device 30)
The information management device 30 is a device owned by a local government such as a police station or a municipality, a national organization (Ministry of Land, Infrastructure, Transport and Tourism, Ministry of Transport, etc.), a road management organization, and the like. It manages information about.

For example, the information management device 30 transmits vehicle information and information on the owner of the vehicle to the storage unit 18 of the vehicle identification device 10 via an infrastructure device installed on a road.
<Vehicle identification>
In the vehicle identification device 10 of the present embodiment, the vehicle identification unit 16 uses the information such as numbers read by the first vehicle number reading unit 13 and the second vehicle number reading unit 14 to perform the vehicle in the following procedure. To identify.

Before specifying the vehicle in the vehicle specifying unit 16, first, in the vehicle type determining unit 12, the vehicle type of the vehicle to be specified included in the image is used by using the image taken by the camera 20 or the detection result in the sensor 21. Determine.
The vehicle type discrimination in the vehicle type discrimination unit 12 is performed by the image information acquired in the image acquisition unit 11 such as the size and ratio of the vehicle length, width, height, the shape of the vehicle, the color and size of the license plate, and the like. The vehicle type of the vehicle in the image is estimated based on the information included in the information or the detection result of the sensor 21.

Next, when the vehicle identification unit 16 determines that the vehicle type determined by the vehicle type determination unit 12 is highly likely to be a specific vehicle such as the large truck 40, the vehicle identification unit 16 uses the first information on the number of the license plate 41 as the first information. Obtained from the vehicle number reading unit 13.
The first vehicle number reading unit 13 reads the number on the license plate 41 using an image including the front or rear surface of the large truck 40.

Next, the vehicle identification unit 16 identifies the vehicle by referring to the obtained number of the license plate 41 and the registered vehicle information transmitted from the information management device 30 and stored in the storage unit 18.
Here, when the vehicle can be identified based on the number of the license plate 41, the vehicle information of the large truck 40 is identified, and the image information and the vehicle information are associated with each other and stored in the storage unit 18.

On the other hand, when the exact number cannot be specified because the image of the license plate 41 is unclear, the vehicle specifying unit 16 displays information regarding the display number 42 read by the second vehicle number reading unit 14. Obtained from the second vehicle number reading unit 14.
The second vehicle number reading unit 14 reads the display number 42 using an image including the side surface or the rear surface of the large truck 40.

Next, the vehicle identification unit 16 identifies the vehicle by referring to the acquired display number 42 and the registered vehicle information transmitted from the information management device 30 and stored in the storage unit 18.
Here, if the vehicle can be specified based on the display number 42, the vehicle information of the large truck 40 is specified, and the image information and the vehicle information are associated with each other and stored in the storage unit 18.
In the vehicle identification device 10 of the present embodiment, as described above, two or more types of vehicle identification numbers are used to identify a specific vehicle such as the large truck 40 that is required to display two or more types of vehicle identification numbers. Each vehicle identification number is read using an image including “” to identify the vehicle.

Thereby, it is possible to accurately identify the vehicle included in one or more images captured by the camera 20 using at least one of two or more types of vehicle identification numbers.
Moreover, in this embodiment, in addition to vehicle information, such as the large truck 40, owner information is also specified. As a result, for example, when the specified large truck 40 is a violation vehicle that has committed a traffic violation such as overspeed or neglect of traffic lights, the traffic violation of the owner or the like is detected using the specified vehicle information. Enforcement can be carried out.

<Detection of traffic violation>
In the vehicle identification device 10 according to the present embodiment, the violation detection unit 15 refers to information relating to traffic rules (such as laws relating to normal traffic) stored in the DB 15a, and detects whether there is a violation in the following procedure. .
(Overspeed violation)
The violation detection unit 15 detects a violation related to the excessive speed of the large truck 40 using the detection result of the sensor 21 or the like.

Specifically, the violation detection unit 15 receives the detection result of the sensor 21 that detects the traveling speed of the large truck 40 and acquires information on the traveling speed of the large truck 40.
Then, the violation detection unit 15 compares the traveling speed at which the large truck 40 is actually traveling with the speed limit information of the road being stored stored in the DB 15a, and determines whether there is an excessive speed violation. .

Here, when the current traveling speed of the large truck 40 is within the speed limit of the passing road, it is determined that there is no overspeed violation.
On the other hand, if the current traveling speed of the large truck 40 exceeds the speed limit, it is determined that there is an excessive speed violation.
Then, the violation detection unit 15 transmits these violation detection results to the storage unit 18. The violation detection result is stored in the storage unit 18 in a state associated with the vehicle information and owner information of the large truck 40 specified using the violation specifying image P1 (see FIG. 10 and the like). .

Thereby, it is possible to control overspeed violation of the large truck 40 using information stored in the storage unit 18 at a police station or the like.
(Signal violation)
The violation detection unit 15 detects a signal ignorance violation of the large truck 40 using, for example, an image taken by the camera 20 installed at an intersection or the like.

Specifically, the violation detection unit 15 captures an image P1 for specifying violation including the traffic light and the large truck 40 from the image information captured by the camera 20 and stored in the storage unit 18 (see FIG. 10 and the like). Extract.
Here, the image P1 for specifying violation shown in FIG. 10 is an image of the large truck 40 taken obliquely from the front, and includes the front and side surfaces of the large truck 40. Therefore, the image P1 can also be used as an image for specifying the vehicle in addition to the use for specifying the violation.

Then, the violation detection unit 15 refers to the verification condition stored in the DB 15a and determines whether or not the extracted image information is suitable for verification of the signal ignorance violation.
Here, based on the image information, if it is determined from the color of the traffic light that there is no violation of signal ignorance or is not suitable for verification, it is determined that no violation is detected.
On the other hand, when the verification condition is satisfied based on the image information, it is determined that there is a violation regarding the signal ignorance.

Then, the violation detection unit 15 transmits these violation detection results to the storage unit 18. And the violation detection result is memorize | stored in the memory | storage part 18 in the state linked | related with the vehicle information of the specified large truck 40, and owner information.
As a result, the police station or the like can use the information stored in the storage unit 18 to control the violation of the signal ignorance of the large truck 40.

<Mode stored in the storage unit 18>
In the vehicle identification device 10 of the present embodiment, an image P1 (see FIG. 10) captured by the camera 20 and vehicle information, owner information, The violation information is stored in the storage unit 18 while being associated with each other.
(In case of overspeed)
For example, when the violation detected by the violation detection unit 15 exceeds the speed, information on one traffic violation is displayed over a plurality of display screens as shown in FIGS. 11 (a) and 11 (b). And stored as display information on the display screens S1 and S2.

As shown in FIG. 11A, the display screen S1 has three display areas: a violation content display area 61, a specifying image display area 62, and an image information display area 63.
The violation content display area 61 displays the violation content and the violation location.
In the specifying image display area 62, an image for verifying the violation content displayed in the violation content display area 61 is displayed. In this embodiment, as shown in FIG. 11A, the violation specifying speed violation is verified using the violation specifying image P1 and the person specifying image P2, and the violation specifying image is displayed on the display screen. It is displayed in S1. Then, by clicking the triangular switch button 64 shown in FIG. 11A, an image P2 for specifying a person shown in FIG. 11B is displayed.

In the image information display area 63, year, month, day and second are described as the imaging date and time of the image displayed on the display screen S1. In the case of an overspeed violation, the measured vehicle speed and the overspeed from the speed limit are described.
The display screen S2 is displayed when the “next” switching button 64 is clicked from the display state of the violation specifying image P1 shown in FIG. As shown in FIG. 11B, the display screen S2 has three display areas: a violation content display area 61, a specifying image display area 62, and an image information display area 63.

In the violation content display area 61, the violation content (for example, overspeed) and the violation location are displayed as in the display screen S1.
In the specifying image display area 62, an image P2 for specifying a person for verifying a person related to the violation displayed in the violation content display area 61 is displayed. In the present embodiment, as shown in FIG. 11 (b), a driver or the like who has committed a violation of overspeed using one person specifying image P2 is proved. Then, by clicking the triangular switch button 64 (previous, next) shown in FIG. 11B, the previous screen (display screen S1) or the next screen is displayed.

As the display contents displayed on the next screen, as information related to this violation, the remaining violation specifying image, data of a claim document for violation of the driver or owner of the violating vehicle, and the like can be considered. Note that the order in which images are displayed can be changed as appropriate.
(When signal is ignored)
Further, when the traffic violation is a signal ignorance, as shown in FIG. 12, a display screen S3 for displaying all information related to one traffic violation in one screen is shown.

As shown in FIG. 12, the display screen S <b> 3 has three display areas: a violation content display area 61, a specifying image display area 62, and a person information display area 65.
The violation content display area 61 displays the violation content (for example, ignoring red light), the violation location, and the imaging date and time of the infrared image that is the basis of the image. In the present embodiment, as shown in FIG. 12, since the violation is verified using three images, the date up to the date when each image was captured is described.

In the specifying image display area 62, the violation content displayed in the violation content display area 61 and the image subjected to the color arrangement processing to verify the person are displayed. In the present embodiment, as shown in FIG. 12, one violation specifying image P1 and two person specifying images P2 and P3 are displayed.
The violation specifying image P1 shows a state in which the target vehicle is traveling in the intersection in a state where the signal of the oncoming lane is a red signal. Usually, the signal of the opposite lane and the signal of the lane in which the target vehicle is traveling are displayed in synchronism with each other. For this reason, this image is extracted as a violation identification image P1 which is determined to be capable of verifying the violation.

The person specifying image P2 displays an enlarged vehicle number (number plate) portion of the front image of the violating vehicle determined to be ignored in the violation specifying image P1 by image processing. By identifying the vehicle number of the violating vehicle from this image, it is possible to identify the name of the owner of the violating vehicle or the name of the user (company) by referring to pre-registered vehicle inspection information or the like. .

The image P3 for specifying a person is displayed by enlarging the vicinity of the driver's seat by image processing among images in front of the violating vehicle determined to be ignored in the image P1 for specifying violation. By identifying the driver's face and the passenger's face with this image, refer to the face photo information etc. of the license registered in advance, and specify the name of the driver and passenger's name of the violating vehicle Can do.
In the person information display area 65, information related to the person (driver, owner, user, etc.) specified using the person specifying images P2, P3 displayed in the specifying image display area 62 is displayed. For example, the displayed driver information includes data such as the driver's name, address, license number, violation history, and deduction points.

[Other Embodiments]
As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of invention.
(A)
A vehicle identification system 500 according to another embodiment of the present invention may be configured as shown in FIG. 13, for example.

Specifically, as shown in FIG. 13, the vehicle identification system 500 is connected to an external traffic violation control apparatus via a network N such as the Internet, a LAN (Local Area Network), or a WAN (Wide Area Network). In addition, the vehicle identification system 500 is connected to the storage device 160.
The vehicle identification system 500 includes a computer terminal, and includes a CPU (Central Processing Unit) 150, a RAM (Random Access Memory) 151, an output unit 152, a communication unit 153, an input unit 154, an image processing device 510, and the like. .

The CPU 150 executes various arithmetic processes and the like, and executes a predetermined control program that is read into the RAM 151 and expanded. With this control program, the functions of the components included in the vehicle identification system 500 are executed.
The RAM 151 is configured by a memory element such as SRAM (Static RAM) or DRAM (Dynamic RAM), and stores data generated during the processing of the CPU 150.

The output unit 152 has a connection terminal for connecting a cable or the like for transmitting an analog signal such as an image and sound or a digital signal. The output unit 152 converts various types of information read from the storage device 160 into image signals in accordance with instructions from a display control unit (not shown), and outputs the image signals to a display unit or the like via a cable.
The communication unit 153 has a connection terminal or a wireless communication interface for connecting a communication cable, and is connected to the network N. The communication unit 153 transmits / receives data to / from devices connected to the network N.

The input unit 154 includes (a mouse, a keyboard, a touch panel operated on a screen, etc.). The input unit 154 accepts input of information by user operation, menu selection, and the like, and notifies the CPU 150 of the accepted operation content.
The storage device 160 is configured by a semiconductor memory, a magnetic recording medium, an optical recording medium, or the like. The storage device 160 may be connected to the vehicle identification system 500 via a network.

(B)
In the above-described embodiment, as illustrated in FIGS. 6 to 8, an example in which a vehicle is photographed using a plurality of cameras 20 installed in each lane in which the large truck 40 travels has been described. However, the present invention is not limited to this.
For example, as shown in FIG. 14, a configuration may be adopted in which a single camera 20 provided in the vicinity of the middle of two lanes in the column 111 is used to photograph a vehicle traveling in a plurality of lanes.

(C)
In the above-described embodiment, the vehicle identification system 1 has been described with an example in which the presence or absence of traffic violations of the identified vehicle is detected. However, the present invention is not limited to this.
Violations detected in this system are not limited to violations related to traffic violations. For example, violations contrary to the license information indicated in the license for “Special Vehicle Traffic Permit” that was applied in advance are also included. It is.

Specifically, the permit information includes the date and time of traffic application, passage, special vehicle type, vehicle number (number plate, etc.), total length, full width, height, type of load, weight, length Information on width, width, etc. is included. And the state which violated permit information can consider the following violations, for example.
・ You are traveling in a vehicle that is different from the vehicle type you applied for.
・ You are traveling outside the requested route,
-A person who is not the driver who applied for is driving a special vehicle,
-Loading something different from the requested load,
-The size (length, width, height, etc.), weight, etc. of the load exceeds the application details. Is this system suitable for passing large trucks etc. in accordance with the contents of the permit filed in advance? By deciding whether or not to detect the violation, it is possible to control violations related to the passage of large vehicles such as large trucks.

In addition, as the predetermined point where it is detected whether or not the vehicle is traveling in a state that violates the permit information, for example, as described in the above embodiment, the intersection or the specific road where the infrastructure device is installed Or a point passing through an ETC (Electronic Toll Collection System) installed at the entrance of the expressway.
When passing through these points, for example, the in-vehicle device mounted on a large truck or the like communicates with the infrastructure device, so that the permit information is compared with the actual running state, and the presence or absence of violation is detected. Can do.

(D)
In the said embodiment, the 1st vehicle number reading part 13 which reads the number (1st vehicle specific number) of the number plate 41 and the 2nd vehicle number reading part 14 which reads the display number 42 (2nd vehicle specific number) are separate. As an example of the vehicle identification device 10 provided in FIG. However, the present invention is not limited to this.

For example, the vehicle identification device may include a vehicle number reading unit that reads both the vehicle identification number of the number plate 41 (first vehicle identification number) and the display number 42 (second vehicle identification number).
(E)
In the above embodiment, the vehicle identification device 10 provided in the infrastructure device installed on the road has been described as an example. However, the present invention is not limited to this.

For example, the vehicle identification device may be provided in a traffic management center that centrally manages vehicles traveling on a road.
(F)
In the above embodiment, an example has been described in which after the vehicle type is determined by the vehicle type determination unit 12, a specific vehicle is selected and the vehicle specific number is read. However, the present invention is not limited to this.

For example, the vehicle identification may be performed by detecting the presence or absence of the first vehicle number reading unit and the second vehicle identification number for all the vehicles included in the image without determining the vehicle type.
(G)
In the above embodiment, an example in which a management device owned by a police station, a national institution, a local government, or the like is used as the information management device 30 that provides information related to a vehicle and an owner registered with the vehicle identification system 1. I gave it as an explanation. However, the present invention is not limited to this.

For example, instead of these management devices, a cloud server in which information about registered vehicles and owners is stored may be used.
(H)
In the above-described embodiment, the large truck 40 shown in FIG. 4 has been described as an example of the vehicle to be specified by the vehicle specifying system 1. However, the present invention is not limited to this.

For example, in addition to large trucks, self-propelled construction machines (wheel loaders, large cranes, etc.), connected vehicles such as trailers, buses, taxis, etc. The vehicle is also included in the identification target of the vehicle identification system.
(I)
In the above-described embodiment, as the traffic violation of the vehicle detected in the vehicle specifying system 1, the overspeed violation and the signal ignorance are described as examples. However, the present invention is not limited to this.

For example, traffic violations that can be detected and managed in this vehicle identification system include traffic prohibition / U-turn prohibition violation, traffic classification violation, reverse running, overtaking prohibition violation, designated crossing prohibition violation, designated place temporary stop, neglected parking Violations, traffic zone violations, priority traffic zone violations such as route buses, non-retention distances, no lights, mobile phone use, etc. are also included.
In other words, in this system, in addition to the traffic violations exemplified above, traffic violations that can be detected by sensors, cameras, etc., can be detected and managed according to the laws stipulated in each country. It is.

(J)
In the above-described embodiment, an example in which vehicle information of a specific vehicle such as the large truck 40 is specified using two types of vehicle identification numbers (the number of the number plate 41 and the display number 42) has been described. However, the present invention is not limited to this.
For example, there may be three or more types of vehicle identification numbers that are required to be displayed on a specific vehicle.

The vehicle specifying device of the present invention has an effect that it is possible to accurately specify a specific vehicle to which two or more types of vehicle specific numbers such as large trucks and taxis are attached to the outer surface. The present invention can be widely applied to various devices for specifying a vehicle.

DESCRIPTION OF SYMBOLS 1 Vehicle identification system 10 Vehicle identification apparatus 11 Image acquisition part 12 Vehicle type discrimination | determination part 13 1st vehicle number reading part (vehicle number reading part)
14 Second vehicle number reading unit (vehicle number reading unit)
15 Violation detection unit 15a DB
15b Determination means 16 Vehicle specifying unit 17 Owner specifying unit 18 Storage unit 18a Image information storage region 18b Violation information storage region 18c Vehicle information storage region 18d Owner information storage region 20 Camera (imaging device)
20a Camera (imaging device)
21 Sensor 30 Information management device 40 Large truck (specific vehicle)
41 Number plate (1st vehicle identification number)
42 Display number (second vehicle identification number)
61 Violation content display area 62 Image display area for identification 63 Image information display area 64 Switching button 65 Person information display area 110 Traffic light 111 Post 150 CPU
151 RAM
152 Output unit 153 Communication unit 154 Input unit 160 Storage device 500 Vehicle identification system 510 Image processing device A, B Lane N Network P1-P3 Image S1-S3 Display screen Z1, Z2 Detection area

Claims (12)

1. A vehicle identification device for identifying a vehicle having two or more types of vehicle identification numbers attached to the outer surface,
   An image acquisition unit that acquires an image captured by the imaging device;
   A vehicle number reading unit that reads at least one of the first vehicle identification number and the second vehicle identification number included in the image;
   A vehicle identification unit that identifies the vehicle based on the number read by the vehicle number reading unit;
   A vehicle identification device comprising:
2. The vehicle number reading unit reads both the first vehicle identification number and the second vehicle identification number;
   The vehicle identification device according to claim 1.
3. The vehicle specifying unit attempts to specify the vehicle using the first vehicle specifying number based on the information of the image acquired by the image acquiring unit, and determines that the vehicle specifying is not sufficient. Identify the vehicle using the vehicle identification number,
   The vehicle identification device according to claim 1 or 2.
4. The first vehicle identification number is a vehicle number of a license plate installed on a front surface and a rear surface of the vehicle,
   The second vehicle identification number is a vehicle-specific display number displayed on the outer surface of the vehicle.
   The vehicle identification device according to claim 3.
5. An owner identification unit that identifies an owner of the vehicle identified in the vehicle identification unit;
   The vehicle identification device according to claim 3 or 4.
6. A storage unit for storing the image acquired by the image acquisition unit and the vehicle information specified by the vehicle specifying unit;
   The vehicle identification device according to any one of claims 3 to 5.
7. A violation detector for detecting the presence or absence of a traffic violation of the vehicle specified in the vehicle specifying unit, further includes,
   The vehicle identification device according to any one of claims 3 to 6.
8. A vehicle type discriminating unit for discriminating the vehicle type of the vehicle,
   The vehicle specifying unit specifies a vehicle using the first vehicle specifying number and the second vehicle specifying number based on the vehicle type information determined by the vehicle type determining unit.
   The vehicle identification device according to any one of claims 3 to 7.
9. The first vehicle identification number and the second vehicle identification number are attached to different surfaces of the vehicle.
   The vehicle identification device according to any one of claims 3 to 8.
10. The vehicle identification device according to any one of claims 3 to 9,
    An imaging device that supplies a captured image to the image acquisition unit of the vehicle identification device;
    Vehicle identification system equipped with.
11. The imaging device captures at least one of front, rear and side images of the vehicle;
    The vehicle identification system according to claim 10.
12. A vehicle identification device according to claim 5;
    An information management device for providing information necessary for specifying a vehicle or a vehicle owner in the vehicle specifying unit;
    Vehicle identification system with

Images