TWI494867B - Vehicle number data processing system, method of processing vehicle number data, vehicle number data processing device, program, and recording medium - Google Patents

Description

Car number data processing system, car number data processing method, car number data processing device, program and recording media

The present invention relates to a car number data processing system, a car number data processing method, a car number data processing device, a program, and a recording medium. More particularly, the present invention relates to a car number data processing system, a car number data processing method, and a car number data processing for processing car number information including a number plate number information of a vehicle obtained by optical character recognition of an image. A device, a program that causes a computer to function as the car number data processing device, and a recording medium on which the program is recorded.

The automatic toll collection system of the toll road is a system in which an IC (Integrated Circuit) card in which contract information or the like is recorded is inserted into a vehicle-mounted device installed in a vehicle, and is installed at a toll gate of a toll road. Wireless communication is performed between the roadside antenna and the vehicle-mounted device, and information such as tolls is recorded in both the toll road computer system and the IC card connected to the roadside antenna, and settlement is performed.

Fig. 14 is a view showing an example of the use environment of the automatic toll collection system 900 of the toll road. When the user of the automatic toll collection system 900 utilizes the automatic toll collection system 900, it is necessary to install the vehicle-mounted device to the vehicle in advance. Here, the vehicle-mounted device is used to connect to the roadside antennas 930 and 960. A wireless device that communicates information required to calculate tolls by wireless. A vehicle-mounted device that performs charging processing for a toll corresponding to the vehicle type is installed in the vehicle.

In the automatic toll collection system 900, the roadside antenna 930, the camera 940, the sensor 950, and the roadside antenna 960 are sequentially disposed in the same lane. Further, if the vehicle enters the communication range of the roadside side antenna 930 of the lane, the vehicle-mounted device deducts the toll from the balance of the electronic money charged in the IC (Integrated Circuit) card inserted into the vehicle-mounted device.

Moreover, if the vehicle enters the detection range of the sensor 950, the sensor 950 detects, for example, the size of the vehicle, and transmits information indicating the size to the control device 920. When the control device 920 receives the data transmitted from the sensor 950, it is based on the size of the vehicle indicated by the data, such as the vehicle type of the particular vehicle.

Further, if the vehicle enters the communication range to the roadside antenna 960, the roadside antenna 960 receives data indicating the toll from the balance of the electronic money from the vehicle-mounted device, and transmits the data to the control device 920.

When the control device 920 receives the data transmitted from the roadside antenna 960, it determines whether the deduction amount of the toll indicated by the data is reasonable as the toll of the vehicle type specified in the above manner. For example, when the vehicle-mounted device installed in the vehicle does not correspond to the vehicle type of the vehicle, the toll fee corresponding to the specific vehicle type is not deducted, and therefore, the control device 920 determines that the deduction amount is unreasonable as the toll. Further, when the balance of the electronic money is insufficient or when the vehicle-mounted device is not installed, the control device 920 also determines that the deduction amount is unreasonable as the toll.

When the control device 920 determines that the deduction is unreasonable as the toll, if the sensor 950 detects the rear end of the vehicle, the camera 940 images the rear end of the vehicle and transmits the image data to the control device 920. Here, the number card currently provided at the rear end of the vehicle is reflected in the image captured by the camera 940. Upon receiving the image data transmitted from the camera 940, the control device 920 transmits the image data to the server 910.

If the server 910 receives the image data sent from the control device 920, the image is received by the server 910. The data is optically character recognized and the car number displayed on the number plate is read. As a result, the road staff can specifically violate the vehicle number of the vehicle.

Moreover, the Singapore government has studied the development and introduction of an automatic toll collection system using GPS (Global Positioning System). In the automatic toll collection system using GPS, the GPS receiver is installed in the entire vehicle, and the GPS receiver is used to detect the entry toward the road for billing. Therefore, by using the GPS automatic charging system, it is not necessary to provide a machine for billing processing, and therefore, it is also involved in the reduction of funds.

On the other hand, in the automatic toll collection system using GPS, it is necessary to construct a system for imaging a number plate of an unreasonable vehicle. However, in the automatic toll collection system using GPS, as in the automatic toll collection system shown in FIG. 14, it is impossible to specify an unreasonable vehicle by the result of the charge processing. Therefore, in a system for capturing a number card of an unreasonable vehicle in a GPS automatic toll collection system, it is required to photograph the number plates of all the vehicles entering the road in advance.

Here, in the case where the number plates of all the vehicles traveling in the plurality of lanes are to be photographed, the cameras for photographing the number plates of the vehicles are juxtaposed along the width direction of the road in such a manner that the mutually adjacent imaging ranges coincide with each other. . Thus, by eliminating the dead angle between the cameras, the camera traveling in the lane is imaged by any of the cameras. However, vehicles traveling at positions where the imaging ranges of two cameras adjacent to each other coincide are captured by the two cameras.

Moreover, in the image of the number plate obtained by the above method, an image of a number plate which is not an unreasonable vehicle is also included. Therefore, in the upper system, it is judged whether or not the number plate reflected in the image is the number plate of the unreasonable vehicle. Therefore, the image data captured by each camera is transmitted to the host system.

However, as described above, in the image data captured by each camera, there is a case where the number of the same number of vehicles is imaged repeatedly. Therefore, when all the image data captured by each camera is sent to the host system, no network is applied to it. Use the load. Further, in the upper system, the useless processing of each of the image data indicating the repetition of the number plate of the same vehicle is performed. Therefore, in a system using a plurality of cameras as described above, it is required to represent the number of the same vehicle in the plurality of pieces of the number indicating the number of the number plate obtained by optically character-recognizing the image captured by each camera. The data is set as a piece of data for processing.

As a technique related to the above background, various types are known (for example, refer to Patent Document 1). Patent Document 1 describes a method of recognizing a moving object that recognizes an object in a measurement region that is connected to an imaging region of a plurality of cameras by image processing. In the identification method of the moving body, the measurement area is set in such a manner that the adjacent imaging areas are overlapped with each other to avoid the specific width required for the recognition error of the object or its elements, based on the images simultaneously captured by the cameras. , the identification processing of the object. As described above, in the identification method of the moving body, since the imaging area of the plurality of cameras is repeatedly set with a specific width along the moving direction of the moving body, the measurement area can be enlarged, and the moving object of the high speed can be recognized or more. Identification of moving objects.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 08-005316

However, the identification method of the moving body described in Patent Document 1 is a method in which a plurality of vehicle number data are collectively processed to generate a complete vehicle number data, instead of optical character recognition of an image captured by each camera. The data indicating the car number of the same vehicle among the plurality of pieces of data indicating the number of the number plate is set as a piece of data for processing.

In order to solve the above problems, a first aspect of the present invention is a car number data processing system that processes a car number including a vehicle number plate obtained by optical character recognition of an image. The vehicle number information of the information includes: a plurality of camera devices, which are arranged in a manner that coincides with the imaging range, and performs time-lapse imaging on the road; and a car number data processing device that processes the car number data; and the car number data processing device The vehicle number data integration unit includes a vehicle number information including car number information obtained by optical character recognition of an image captured by a camera device, and a camera having a camera image matching the imaging range of the camera device. One of the car number information of the car number information obtained by the image capturing device of the range is saved and the other car number data is deleted, thereby integrating the car containing the information related to the same vehicle. No. Information.

The car number data processing device may further include: a car number search unit that is obtained from the car number data obtained by optical character recognition of an image captured by the image capturing device having an imaging range that coincides with an imaging range of the image capturing device, Searching for the car number information including the same information as the car number information contained in the car number data obtained by optically recognizing the image captured by the camera device; and the car number data integration unit will photograph the camera device The image of the image obtained by optical character recognition is integrated with the car number data searched by the same car number search department.

The car number data processing device may further include: an optical character recognition determining unit that determines whether the car number obtained by optical character recognition of the image captured by the image capturing device contains a portion that cannot be optically recognized; When the optical character recognition determination unit determines that the vehicle number does not include a portion incapable of performing optical character recognition, the number search unit searches for the vehicle number data including the same information as the vehicle number information.

The car number data processing device may further include: a car number position determining unit that determines whether a position of the car number obtained by optical character recognition of the image captured by the image capturing device in the image is in a position with the image capturing device In the imaging range of the imaging device in which the imaging range overlaps the imaging range, and the optical character recognition determination unit determines that the imaging range is within the imaging range of the imaging device having the imaging range that coincides with the imaging range of one imaging device. At this time, it is determined whether or not the part of the car number contains a portion that cannot be optically recognized.

The vehicle number data processing device may further include: an integrated data determination unit that determines whether the vehicle number data is the vehicle number data integrated by the vehicle number data integration unit; and the vehicle number position determination unit determines that the integrated data determination unit is not integrated In the case of the car number data, it is determined whether the position of the car number contained in the car number data in the image is within the imaging range of the other camera device.

The car number data processing system may further include: a plurality of car number data generating devices, which are respectively provided corresponding to each camera device, and perform optical character recognition on the image captured by the corresponding camera device to generate car number data. And the vehicle number data processing device further includes: an inspection data receiving unit that receives the inspection data for checking the soundness of the network from the vehicle number data generating device; the vehicle number data receiving unit receives the vehicle from the vehicle number data generating device And a receiving presence determination unit that determines whether the inspection data receiving unit receives the inspection data after receiving the vehicle number data, and the integrated data determination unit determines the vehicle number information in the reception presence determination unit. When the receiving unit receives the vehicle number data and checks whether the data receiving unit receives the inspection data, it determines whether the vehicle number data is the vehicle number data integrated by the vehicle number data integration unit.

The car number data generating device can generate the car number information including the car number information of the vehicle number plate when the image captured by the corresponding camera device is optically recognized, and the generating further includes detecting the vehicle by the corresponding camera device. The car number data processing device further includes: a character interpolating unit that determines, in the optical character recognition determining unit, that the part of the car number that cannot be optically recognized is included in the information of the first moment. When the optical character recognition determination unit determines that the part of the vehicle number contains a portion that cannot be optically recognized, or the character search unit determines that the optical character recognition unit has a part that cannot perform optical character recognition, or When the car number search unit cannot search for the car number data including the information of the same car number, the image captured by the image capturing device having the imaging range overlapping with the imaging range of one imaging device is optically recognized. In the car number data, the search includes optical character recognition of the image captured by the camera device. The car number information contained in the car number data corresponding to the time from the initial time to the last time, or the car number information of the last moment information; and the same car number search department searches from the same section search department In the car number data, the car number data containing the same information as the car number information after the character interpolating character interpolation character is searched.

The car number data generating device can generate a car that includes information on the type of the number plate of the vehicle when the image captured by the corresponding camera device is optically recognized to generate the car number information including the car number information of the vehicle number plate. No. data; the car number data processing device further includes: a same number plate type search unit, which is unable to search for the car number data including the information of the same car number in the car number data searched by the same segment search unit in the same car number search unit. In the case of the vehicle number data obtained by optical character recognition of an image captured by an image pickup device having an imaging range overlapping with an imaging range of an imaging device, the search and the image captured by the imaging device are performed. The number information of the information of the type of the number of the number of the number of the number of the license plate included in the number information of the optical character recognition; and the vehicle number data integration department searches for the information of one vehicle number in the search section of the same number type, The car number data is integrated with the car number data obtained by optical character recognition of an image captured by a camera device.

The vehicle number data generating device can generate vehicle number information including the vehicle speed information of the vehicle when optical character recognition is performed on the image captured by the corresponding imaging device to generate the vehicle number information including the vehicle number information of the vehicle number sign; The vehicle number data processing device further includes: a vehicle speed evaluation unit that evaluates a vehicle number data obtained by optical character recognition of an image captured by a camera device when the same number plate type search unit searches for a plurality of vehicle number data. The speed indicated by the information contained in the information and the information contained in the vehicle number data obtained by optical character recognition of the image captured by the image pickup device having the imaging range coincident with the imaging range of the imaging device The degree of the vehicle speed is the same; and the vehicle number data integration unit integrates the vehicle number information including the vehicle speed information with a higher degree of evaluation that is evaluated by the vehicle speed evaluation unit.

The car number data processing device may further include: a time period evaluation unit, which is in the same number plate type When the search unit searches for the plurality of vehicle number data, it evaluates the time period from the initial time to the last time indicated by the information contained in the vehicle number data obtained by optical character recognition of the image captured by a camera device. And the information contained in the car number data obtained by optical character recognition of the image captured by the image capturing device having the imaging range overlapping the imaging range of the imaging device is represented by the information from the initial time to the last moment. The degree of coincidence of the time period; and the vehicle number data integration department integrates the vehicle number data of the time information including the higher level of the evaluation by the time period evaluation department.

The car number data generating device can generate the car number information including the car number information of the vehicle number plate when the image captured by the corresponding camera device is optically recognized, and the generating further includes detecting the vehicle by the corresponding camera device. The vehicle number data of the detected position of the detected position of the vehicle relative to the detected position of all the vehicles during the time period; and the vehicle number data processing device further includes: a detection position evaluation unit that searches for the same number plate type When searching for a plurality of pieces of car number data, the part is evaluated for the detection position indicated by the information contained in the car number data obtained by optical character recognition of the image captured by a camera device, and the pair has the same image The imaging range of the device is the same as the detection position indicated by the information contained in the image data obtained by the optical character recognition of the image captured by the camera device; and the vehicle number data integration unit includes detection The position evaluation unit evaluates the vehicle number data of the information of the detection position with a higher degree of agreement.

The car number data processing device may further include: an imaging time determination unit that determines that the car number data generating device performs the optical character recognition process when the same time segment search unit or the same number plate type search unit cannot search for the car number data. Whether the image capturing time of the image is earlier than the last time of detecting the vehicle contained in the car number data obtained by optical character recognition of the image captured by a camera device; and the car number When the imaging time determination unit determines that the imaging time is not earlier than the last time, the data integration unit integrates the vehicle number data obtained by optical character recognition of the image captured by the imaging device. After the car number information.

According to a second aspect of the present invention, there is provided a vehicle number data processing method for processing a vehicle number information including vehicle number information of a vehicle number plate obtained by optical character recognition of an image, and comprising: a vehicle number data integration stage, The vehicle number information including the car number information obtained by optical character recognition of an image captured by one of the plurality of imaging devices that are set to image by time on the road, and includes One of the vehicle number data of the car number information obtained by optical character recognition of the image captured by the image capturing device having the imaging range coincident with the imaging range of the imaging device is reserved to delete another car number data. In order to integrate the vehicle number data containing information related to the same vehicle.

According to a third aspect of the present invention, there is provided a vehicle number data processing apparatus which processes a vehicle number information including vehicle number information of an image number plate obtained by optical character recognition of an image, and includes: a vehicle number data integration unit; The vehicle number information including the car number information obtained by optical character recognition of an image captured by one of the plurality of imaging devices that are set to image by time on the road, and includes One of the vehicle number data of the car number information obtained by optical character recognition of the image captured by the image capturing device having the imaging range coincident with the imaging range of the imaging device is reserved to delete another car number data. In order to integrate the vehicle number data containing information related to the same vehicle.

According to a fourth aspect of the present invention, there is provided a program for causing a computer to function as a car number data processing device for processing car number information including a vehicle number plate obtained by optical character recognition of an image. The vehicle number information, and the program causes the computer to function as the following vehicle number data integration unit: a picture is captured by one of a plurality of imaging devices that are set to coincide with the imaging range and that are time-lapsed on the road. a car number information such as car number information obtained by optical character recognition, and a car number information obtained by optical character recognition of an image captured by an image pickup device having an imaging range that coincides with an imaging range of the image pickup device One of the number information is protected Leave and delete another car number data to integrate car number data containing information related to the same vehicle.

According to a fifth aspect of the present invention, there is provided a recording medium for recording a program for causing a computer to function as a car number data processing device, wherein the car number data processing device processes a vehicle number plate including optical character recognition of an image. The car number information of the car number information, and the recording media record enables the computer to function as a program of the following car number data integration unit: it includes a plurality of camera devices that are set to overlap the imaging range and time-lapse imaging of the road a car number information obtained by optical camera recognition of an image captured by a camera device, and an optical character including an image captured by an image pickup device having an imaging range coincident with an imaging range of the camera device One of the car number data of the identified car number information is retained and the other car number data is deleted, thereby integrating the car number data containing the information related to the same vehicle.

Furthermore, the summary of the above invention does not recite all of the features required in the present invention.

Moreover, the sub-combination of these feature groups can also be an invention.

According to the above description, according to the present invention, the data indicating the vehicle number of the same vehicle in the plurality of pieces of the number indicating the number of the number plate obtained by optical character recognition of the image captured by each camera can be set as a piece of data. deal with.

100‧‧‧Car number data processing system

110‧‧‧Car number data processing device

111‧‧‧Check data receiving department

112‧‧‧Car number data receiving department

113‧‧‧Received whether or not the judgment department

114‧‧‧Integrated Data Judgment Department

115‧‧‧Car position determination unit

116‧‧‧Optical Character Recognition and Determination Department

117‧‧‧The same car number search department

118‧‧‧Character Interpolation Department

119‧‧‧Segment Search Department

120‧‧‧The same number plate type search department

121‧‧‧Speed Evaluation Department

122‧‧‧Time Evaluation Department

123‧‧‧Detection Location Evaluation Department

124‧‧‧Video Time Determination Department

125‧‧‧Car Number Data Integration Department

126‧‧‧Car number data storage department

127‧‧‧Information

130 (130a~130d), 940‧‧‧ camera

150 (150a~150d)‧‧‧Car number data generating device

800‧‧‧ computer

801‧‧‧Master Controller

802‧‧‧CPU

803‧‧‧RAM

804‧‧‧Drawing controller

805‧‧‧ display

806‧‧‧Input and output controller

807‧‧‧Communication interface

808‧‧‧ hard disk drive

809‧‧‧CD-ROM drive

810‧‧‧ROM

811‧‧‧VCD drive

812‧‧‧Input and output wafer

891‧‧‧Network communication device

892‧‧‧CD-ROM

893‧‧‧ floppy

900‧‧‧Automatic toll collection system

910‧‧‧Server

920‧‧‧Control device

930, 960‧‧‧ roadside antenna

950‧‧‧ sensor

Aa‧‧‧ camera range of camera 130a

Ab‧‧‧ camera range of camera 130b

Ac‧‧‧ camera range of camera 130c

Ad‧‧‧camera 130d camera range

G‧‧‧ Gate

R10‧‧‧ Road

R11‧‧ driveway

R12‧‧ driveway

R13‧‧ driveway

Fig. 1 is a view showing an example of the use environment of the car number data processing system 100 according to the embodiment.

Fig. 2 is a view showing an example of a block configuration of the car number data processing device 110.

FIG. 3 is a diagram showing an example of information stored in the car number data storage unit 126 in a table format.

FIG. 4 is a diagram showing an example of information stored in the vehicle number data storage unit 126 in a table format.

FIG. 5 is a diagram showing an example of information stored in the car number data storage unit 126 in a table format.

Fig. 6 is a view showing an example of information stored in the car number data storage unit 126 in a table format.

FIG. 7 is a view showing an example of an operation sequence of the car number data processing device 110 and the car number data generating device 150.

FIG. 8 is a view showing an example of an operation sequence of the car number data processing device 110, the camera 130, and the car number data generating device 150.

FIG. 9 is a view showing an example of an operation flow of the car number data processing device 110.

FIG. 10 is a view showing an example of an operation flow of the car number data processing device 110.

FIG. 11 is a view showing an example of an operation flow of the car number data processing device 110.

FIG. 12 is a view showing an example of an operation flow of the car number data processing device 110.

Fig. 13 is a view showing an example of a hardware configuration of a computer 800 constituting the car number data processing device 110 of the present embodiment.

Fig. 14 is a view showing an example of the use environment of the automatic toll collection system 900 of the toll road.

Hereinafter, the present invention will be described by using the embodiments of the invention. However, the following embodiments do not limit the invention of the claims, and the combinations of the features described in the embodiments are not necessarily required.

Fig. 1 is a view showing an example of the use environment of the car number data processing system 100 according to the embodiment. The car number data processing system 100 is a system for processing car number data. Here, the vehicle number information refers to information including at least the vehicle number information of the vehicle number plate obtained by optical character recognition of the image.

The car number data processing system 100 includes a car number data processing device 110, a plurality of cameras 130a to d (hereinafter collectively referred to as a camera 130), and a plurality of car number data generating devices 150a. d (hereinafter collectively referred to as the car number data generating device 150). Furthermore, the camera 130 can be an example of the "imaging device" in the present invention.

The car number data processing device 110 is electrically connected to the car number data generating device 150. Moreover, the car number data processing device processes the car number data.

The camera 130 is juxtaposed in the width direction so as to be adjacent to the gates G above the plurality of lanes R11 to R13 on the road R10. In the present embodiment, the imaging range Aa of the camera 130a coincides with the imaging range Ab of the camera 130b. Further, in the present embodiment, the imaging range Ab of the camera 130b overlaps with the imaging range Ac of the camera 130c. Further, in the present embodiment, the imaging range Ac of the camera 130c overlaps with the imaging range Ad of the camera 130d. Further, the camera 130 is electrically connected to a vehicle number data generating device 150. Further, the camera 130 performs temporal imaging on the road R10 obliquely downward.

The car number data generating device 150 is provided one-to-one corresponding to each camera 130. Further, the car number data generating device 150 is electrically connected to one of the corresponding cameras 130. Further, the car number data generating device 150 performs optical character recognition on the image captured by the corresponding camera 130, and generates car number information including at least car number information of the vehicle number plate obtained by optical character recognition of the image. More specifically, when the vehicle number data generating device 150 performs optical character recognition on the image captured by the corresponding camera 130 to generate the vehicle number information including the vehicle number information of the vehicle number plate, the vehicle number data is generated and included. The situation of the car number information of other information related to the vehicle. For example, the car number data generating device 150 generates car number data further including the corresponding camera 130 detecting the information of the first moment of the vehicle and the information of the last moment. Further, the car number data generating device 150 generates car number data including information on the type of the license plate of the vehicle. Further, the car number data generating device 150 generates car number data further including the vehicle speed information. Further, the car number data generating device 150 generates car number data further including information on the detected position of the vehicle with respect to the detected position of all the vehicles detected during the time period when the corresponding camera 130 detects the vehicle.

Further, in the present embodiment, in order to prevent the description from becoming complicated, the configuration of the car number data processing system 100 including the car number data processing device 110 will be described. However, the car number data processing system 100 can include a plurality of car number data processing devices 110.

Further, in the present embodiment, the car number data processing system 100 includes a configuration of a plurality of car number data generating devices 150 corresponding to a plurality of cameras 130. However, the car number data processing system 100 may include a car number data generating device 150 corresponding to the plurality of cameras 130.

FIG. 2 shows an example of the block configuration of the car number data processing device 110. The car number data processing device 110 includes a car number data receiving unit 112, an inspection data receiving unit 111, a reception presence determining unit 113, an integrated material determining unit 114, a car number position determining unit 115, an optical character recognition determining unit 116, and the same car number search. Section 117, simultaneous segment search unit 119, character interpolation unit 118, same number plate type search unit 120, vehicle speed evaluation unit 121, time period evaluation unit 122, detection position evaluation unit 123, imaging time determination unit 124, and car number data integration The unit 125 and the car number data storage unit 126. In the following description, functions and operations of the respective constituent elements will be described in detail.

The car number data receiving unit 112 receives the car number data from the car number data generating device 150.

The inspection data receiving unit 111 receives the inspection data from the vehicle number data generating device 150. Here, the inspection data refers to information for checking the soundness of the network between the vehicle number data processing device 110 and the vehicle number data generating device 150.

The reception presence/absence determination unit 113 determines whether or not the vehicle number data is received by the vehicle number data receiving unit 112 after receiving the vehicle number data.

The integrated data judging unit 114 determines whether or not the car number data is the car number data integrated by the car number data integrating unit 125. More specifically, the integrated data judging unit 114 determines the car number data when the reception presence determining unit 113 determines that the car number data is received after the car number data receiving unit 112 receives the car number data. Whether it is the car number information integrated by the car number data integration department 125.

The car number position determining unit 115 determines whether or not the position of the car number obtained by optical character recognition of the image captured by the camera 130 in the image is within the imaging range of the camera 130 adjacent to the one camera 130. More specifically, when the integrated material determination unit 114 determines that the vehicle number data that has not been integrated by the vehicle number data integration unit 125 is determined, the vehicle number position determination unit 115 determines that the vehicle number included in the vehicle number data is Whether the position in the image is within the imaging range of the adjacent camera 130.

The optical character recognition determining unit 116 determines whether or not the part number obtained by optically recognizing the image captured by the camera 130 includes a portion incapable of performing optical character recognition. More specifically, when the car number position determining unit 115 determines that the car number position determining unit 115 is within the imaging range of the camera 130 adjacent to the camera 130, it is determined whether or not the car number contains the optical character. The part of identification.

The same car number search unit 117 performs optical character recognition on the image data obtained by optically recognizing the image captured by the camera 130 adjacent to the camera 130. The car number information of the information with the same car number information contained in the obtained car number information. More specifically, the same vehicle number search unit 117 searches for a car number including the same information as the car number information when the optical character recognition determining unit 116 determines that the car number does not include the portion where the optical character recognition cannot be performed. data. Further, the same car number search unit 117 searches for the car number data including the same information as the car number information after the character interpolation by the character interpolation unit 118 from the car number data searched by the simultaneous segment search unit 119.

When the optical character recognition determination unit 116 determines that the vehicle number includes a portion incapable of performing optical character recognition, the character interpolation unit 118 interpolates the character of the part of the vehicle that cannot perform optical character recognition.

When the optical character recognition determination unit 116 determines that the vehicle number includes a portion incapable of performing optical character recognition, the same-segment search unit 119 cannot search for the vehicle number data including the information of the same vehicle number in the same vehicle number search unit 117. In the case of a camera 130 In the vehicle number data obtained by optically character recognition of the image captured by the adjacent camera 130, the following vehicle number data is searched, that is, the vehicle number data obtained by optical character recognition of the image captured by the camera 130 is included. Contains information about the first moment, or last minute information, that is equivalent to the period from the initial moment to the last moment.

When the same number sign type search unit 117 cannot search for the car number data including the information of the same car number from the car number data searched by the same-segment search unit 119, the same number plate type search unit 120 self-aligns the camera 130 In the car number data obtained by optical character recognition of the image captured by the adjacent camera 130, the search includes the number plate number included in the car number data obtained by optical character recognition of the image captured by the camera 130. The car number information of the same information.

When the same number plate type search unit 120 searches for a plurality of pieces of car number data, the vehicle speed evaluation unit 121 evaluates the information contained in the car number data obtained by optical character recognition of the image captured by the camera 130. The vehicle speed is equal to the speed of the vehicle indicated by the information contained in the vehicle number data obtained by optical character recognition of the image captured by the camera 130 adjacent to the camera 130.

When the same number plate type search unit 120 searches for a plurality of pieces of car number data, the time period evaluation unit 122 evaluates the information contained in the car number data obtained by optical character recognition of the image captured by the camera 130. From the initial time to the last time, the information contained in the car number data obtained by optical character recognition of the image captured by the camera 130 adjacent to the camera 130 is represented from the initial time to The extent to which the last moments are consistent.

When the same number plate type search unit 120 searches for a plurality of car number data, the detection position evaluation unit 123 evaluates the information contained in the car number data obtained by optical character recognition of the image captured by the camera 130. The detected detection position is the same as the detection position indicated by the information contained in the vehicle number data obtained by optical character recognition of the image captured by the camera 130 adjacent to the camera 130.

When the simultaneous segment search unit 119 or the same number plate type search unit 120 cannot search for the car number data, the imaging time determination unit 124 determines whether or not the imaging time of the image in the optical character recognition process performed by the car number data generating device 150 is The last moment when the detected vehicle is included in the car number data obtained by optical character recognition of the image captured by a camera 130 is an earlier time.

The car number data integration unit 125 carries the car number information including the car number information obtained by optically recognizing the image captured by the camera 130, and includes the image captured by the adjacent camera 130 of the camera 130. In the car number information of the car number information obtained by the optical character recognition, one car number data is retained and the other car number data is deleted, thereby integrating the car number data including the information related to the same vehicle. More specifically, the car number data integration unit 125 integrates the car number data obtained by optically recognizing the image captured by the camera 130 with the car number data searched by the car number search unit 117.

In the case where the same number plate type search unit 120 searches for a piece of car number data, the car number data integration unit 125 searches the car number data searched by the same number plate type search unit 120 and the image captured by the camera 130. Integration of car number data like optical character recognition. Further, the vehicle number data integration unit 125 integrates the vehicle number data including the vehicle speed information having a high degree of agreement between the vehicle speed evaluation unit 121 and the vehicle speed information. Further, the car number data integration unit 125 integrates the car number data including the time information of which the degree evaluation unit 122 has evaluated the higher degree of coincidence. Further, the car number data integration unit 125 integrates the car number data of the information of the detection position at which the detection position evaluation unit 123 evaluates to a higher degree. Further, when the imaging time determination unit 124 determines that the imaging time is not earlier than the last time, the car number data integration unit 125 performs optical character recognition on the image captured by the camera 130. The car number data is set as the integrated car number data.

3 to 6 show an example of the information 127 stored in the car number data storage unit 126 in a table format. In the vehicle number data storage unit 126, the data ID (identifier, identifier), the image ID, the vehicle number, the optical character recognition evaluation value, and the number are stored in association with each other. Card type, car number detection area center position, vehicle detection area center position, vehicle detection evaluation value, vehicle speed (km/h), camera time (year/month/day/hour: minute: second), camera ID, Initial detection time (year/month/day/hour: minute: second), last detection time (year/month/day/hour: minute: second), number of vehicles, detection position, inspection data reception time (Year/Month/Day/Hour: Minute: Second), and integration completed? (yes or no) of the information.

The information of the ID ID is the only information used to identify the vehicle number information in the multiple vehicle number data. More specifically, the information of the data ID is information added when the information included in the vehicle number data is stored in the vehicle number data storage unit 126.

The information of the image ID is the only information for identifying each image in the plurality of images captured by the camera 130. More specifically, the car number data generating device 150 stores an image of the car number that is most easily recognized and displayed on the number plate among the images of the same vehicle. Here, the image that is most easily recognized as the car number displayed on the number plate means, for example, an image that best reflects the existing number plate. Thus, the information of the image ID is used to identify the information of the image saved by the car number data generating device 150.

The car number information is information indicating the car number of the vehicle reflected in the image. More specifically, the car number data generating device 150 performs optical character recognition on the image of the existing vehicle image that is the most clearly displayed in the image of the same vehicle, and reads and displays it on the number plate. The character of the car number. Thus, the car number information is information for the car number data generating device 150 to perform optical character recognition and reading.

The information of the optical character recognition evaluation value is information indicating the degree of trustworthy optical character recognition result. More specifically, the information of the optical character recognition evaluation value of the present embodiment is represented by a decimal number having a maximum value of "1", and the larger the numerical value, the higher the degree of the reliable optical character recognition result.

The information of the type of the license plate indicates the information of the type of the license plate of the vehicle reflected in the image. More specifically, the information of the type of the license plate indicates, for example, that the number of the number is displayed in several sections of the number plate for several wheel vehicles.

The information of the center position of the car number detection area is information indicating the position of the center point of the area occupied by the car number detected in the optical character recognition image in the image. More specifically, the information of the center position of the car number detection area is expressed, for example, on the upper left side of the image, the X-axis in the horizontal direction of the image, and the Y-axis in the vertical direction of the image. The position in the coordinate system.

The information of the center position of the vehicle detection area is information indicating the position of the center point of the area occupied by the vehicle detected in the optical character recognition image in the image. More specifically, the information of the center position of the vehicle detection area is, for example, an orthogonal coordinate system based on the upper left of the image, the X-axis in the horizontal direction of the image, and the Y-axis in the longitudinal direction of the image. The location in the middle.

The information of the vehicle detection evaluation value indicates information that can be trusted to detect the extent to which the object reflected in the image is the detection result of the vehicle. More specifically, the car number data generating device 150 detects whether the object is a vehicle based on, for example, the characteristics of an object other than the road reflected in the image. The information of the vehicle detection evaluation value indicates the degree to which the detection result can be trusted.

The vehicle speed (km/h) information is information indicating the speed of the vehicle reflected in the image. More specifically, the vehicle speed is measured by, for example, a measuring device not shown.

The information of the imaging time (year/month/day/hour: minute: second) is information indicating the time at which the image was taken. More specifically, the imaging time information is simultaneously recorded in the image file when the camera 130 performs imaging.

The information of the camera ID is the only information used to identify each camera 130 in a plurality of cameras 130. More specifically, the car number data generating device 150 generates car number data including information indicating the camera ID of the corresponding camera 130.

The information of the initial detection time (year/month/day/hour: minute: second) indicates the information of the moment when the vehicle reflected in the image is initially detected. More specifically, the camera 130 continuously shoots after the vehicle traveling on the road R10 enters the imaging range until it passes. The existing image of the vehicle is captured. The information of the first detection time (year/month/day/hour: minute: second) indicates that the imaging time of the first image captured in the plurality of images of the same vehicle is reflected in the above manner.

The last detection time (year/month/day/hour: minute: second) is information indicating the moment when the vehicle reflected in the image is finally detected. More specifically, the last detection time (year/month/day/hour: minute: second) information indicates that the image of the last captured image among the plurality of images of the same vehicle is reflected in the above manner. time.

The information of the number of vehicles is information indicating the number of all vehicles detected by the camera 130 from the time the camera 130 initially detects the vehicle reflected in the image until the last detection. More specifically, for example, the camera 130b of the present embodiment captures the imaging range Ab throughout the lane R11 and the lane R12. Therefore, the camera 130b simultaneously images the vehicle traveling in the lane R11 and the vehicle traveling in the lane R12. For example, when detecting that two vehicles are traveling within the imaging range of the lane R12 during the vehicle traveling in the lane R11, the camera 130b detects three vehicles while detecting the vehicle traveling in the lane R11.

The information of the detected position indicates the detected position of the width direction of all the vehicles detected by the camera 130 during the period from the time when the camera 130 initially detects the vehicle reflected in the image until the last detection. Information that reflects the detected position of the width direction of the vehicle in the image identified by the information of the image ID. For example, as described above, during the detection of the vehicle traveling in the lane R11, when two vehicles are traveling in the imaging range of the lane R12, the camera 130b detects during the detection of the vehicle traveling in the lane R11. 3 vehicles.

At this time, the detection position in the width direction of the vehicle traveling in the lane R11 is the first one on the left side of the three vehicles when viewed in the forward direction.

The information for checking the data receiving time (year/month/day/hour: minute: second) is indicated at the time point when the car number data processing device 110 receives the car number data from the car number data generating device 150, the car number The data processing device 110 finally receives the information of the time at which the data was checked from the car number data generating device 150. More specifically, the information for checking the data reception time (year/month/day/hour: minute: second) is information for comparison with the latest inspection data reception time.

Integration completed? The information (yes or no) indicates whether the vehicle number data containing the information associated with the information of the image ID is the information of the integrated data. More specifically, the integration is completed? The information of "Yes" is the information obtained by integrating the car number data processing device 110. On the other hand, is the integration completed? The information of "No" is the data before the integration processing by the car number data processing device 110.

FIG. 7 shows an example of the operation sequence of the car number data processing device 110 and the car number data generating device 150. In the description of the sequence of operations, the process of transmitting and receiving inspection data will be described in detail. Furthermore, in the description of the operational flow, reference is also made to FIGS. 1 to 6 together.

The car number data generating device 150 transmits the inspection data to the car number data processing device 110 (S101). More specifically, the car number data generating device 150 transmits the inspection material at a specific time, for example. Here, the inspection data includes the imaging time information of the image in the optical character recognition processing.

When the inspection data receiving unit 111 of the vehicle number data processing device 110 receives the inspection data transmitted from the vehicle number data generating device 150, it transmits the reception time to the vehicle number data receiving unit 112 and the reception presence determining unit 113. Further, the inspection data receiving unit 111 transmits the data indicating the imaging time of the image in the optical character recognition processing included in the inspection data transmitted from the vehicle number data generating device 150 to the imaging time determination unit 124.

Thereby, the car number data receiving unit 112 and the reception presence determining unit 113 of the car number data processing device 110 can perform processing using the latest receiving time of the inspection data. Further, the imaging time determination unit 124 of the car number data processing device 110 can perform processing using the imaging time of the image in the optical character recognition processing of the car number data processing device 110.

FIG. 8 shows an example of the operation sequence of the car number data processing device 110, the camera 130, and the car number data generating device 150. In the description of the action sequence, for the car number data The transmission and reception processing will be described in detail. Furthermore, in the description of the operational flow, reference is also made to FIGS. 1 to 7.

The camera 130 captures an image of an imaging range by a photoreactive semiconductor element such as a CCD (Charge Coupled Devices) or a CMOS (Complementary Metal Oxide Semiconductor) (S201), and sets it as image data. And output (S202). More specifically, the camera 130 performs imaging at a speed of, for example, about 20 (pieces per second).

When receiving the image data output from the camera 130, the car number data generating device 150 performs optical character recognition on the image data to generate car number data (S203). More specifically, the car number data generating device 150 abolishes the image data when the vehicle is not reflected in the image. On the other hand, the car number data generating device 150 stores the image data when the existing vehicle is reflected in the image. Here, as described above, the camera 130 performs imaging at a speed of about 20 (sheets/second). Therefore, the camera 130 continuously outputs image data of the same vehicle. When the car number data generating device 150 continuously accepts the input of the image data of the existing vehicle, the car image data generating device 150 treats the image data as the image data of the same vehicle. Further, the car number data generating means 150 performs optical character recognition on the image of the series of image data which is displayed on the number plate of the vehicle. Further, the car number data generating device 150 generates car number data including car number information of the vehicle number plate obtained by optical character recognition. At this time, the car number data generating device 150 makes the image ID, the optical character recognition evaluation value, the number plate type, the car number detection region center position, the vehicle detection region center position, the vehicle detection evaluation value, and the vehicle speed (km/h). ), camera time (year/month/day/hour: minute: second), camera ID, initial detection time (year/month/day/hour: minute: second), last detection time (year/month/ The information of day/hour: minute: second), number of vehicles (stage), and detection location (stage) are included in the vehicle number data. Further, the car number data generating device 150 transmits the car number data generated as described above to the car number data processing device 110 (S204).

The car number data receiving unit 112 of the car number data processing device 110 receives the car number data. The car number information transmitted by the device 150 is stored in the car number data storage unit 126 in association with each piece of information included in the car number data and the information of the item ID (S205). At this time, the vehicle number data receiving unit 112 further stores the reception time information of the inspection data indicated by the latest data received from the inspection data receiving unit 111 as described in step S101 of FIG. 7 in association with the vehicle number. Data storage unit 126. Further, the car number data receiving unit 112 is further integrated. The information of "No" is stored in association with the vehicle number data storage unit 126.

Thereby, the information shown in FIGS. 3 to 6 is stored in the car number data storage unit 126 of the car number data processing device 110.

9 to 12 show an example of the operation flow of the car number data processing device 110. In the description of the operation flow, the integration process of the car number data will be described in detail. Furthermore, in the description of the operational flow, reference is also made to FIGS. 1 to 8.

First, the reception presence determination unit 113 of the vehicle number data processing device 110 determines whether or not the inspection data receiving unit has received the inspection data after receiving the vehicle number data (S301). More specifically, the car number data processing device 110 reads the inspection data reception time (year/month/day/hour: minute: second) of the car number data from the information stored in the car number data storage unit 126. News. Then, the reception presence/absence determination unit 113 compares the time indicated by the information with the reception time of the inspection data indicated by the latest data received from the inspection data receiving unit 111 as described in step S101 of Fig. 7 . As a result, when the reception time of the inspection data indicated by the latest data received from the inspection data receiving unit 111 and the time indicated by the information read by the vehicle number data storage unit 126 are the same time (S301: No), the reception presence determination unit 113 stands by until the next processing.

Therefore, the vehicle number data processing device 110 does not perform the vehicle number data when the latest receiving time of the inspection data and the inspection data receiving time associated with the information of the above-mentioned vehicle number data are the same time. Integrated processing.

On the other hand, in step S301, it is received at the last self-inspection data receiving unit 111. When the time of receipt of the inspection data indicated by the latest data is later than the time indicated by the information of the one-vehicle number data read by the vehicle number data storage unit 126 (S301: YES), the presence/absence determination unit is received. 113 transmits the material ID of the one car number data to the integrated material judging unit 114.

When the integrated data determining unit 114 of the car number data processing device 110 receives the data ID transmitted from the receiving presence determining unit 113, it is determined whether or not the one car number data identified by the material ID is integrated by the car number data integrating unit 125. After the car number information (S302). More specifically, the integrated data judging unit 114 reads out the integration of the above-mentioned one-vehicle data identified by the material ID received from the self-inspection data receiving unit 111 from the information stored in the car number data storage unit 126. (yes or no) information. When the value indicated by the information is "YES" (S302: YES), the integrated material determination unit 114 stands by until the next processing.

Therefore, when the above-mentioned one car number data is the case of the integrated person, the car number data processing device 110 does not perform the integration process of the one car number data.

On the other hand, if the value indicated by the information of the one car number data read from the car number data storage unit 126 is "NO" (S302: NO), the integrated material judging unit 114 gives the car number position. The determination unit 115 transmits the material ID of the vehicle number data.

When the car number position determining unit 115 of the car number data processing device 110 receives the material ID transmitted from the integrated data determining unit 114, it determines the car number included in the one car number data identified by the material ID. Whether or not the position is within the imaging range of the adjacent camera 130 (S303). More specifically, the car number position determining unit 115 reads the car number of the above-mentioned car number data identified by the material ID received by the self-integrated data determining unit 114 from the information stored in the car number data storage unit 126. Detects the information of the center of the area, the center of the vehicle detection area, and the camera ID. Further, the car number position determining unit 115 refers to the information of the camera ID and the information of the center position of the car number detecting area, and determines whether or not the position of the car number in the image is within the imaging range of the adjacent camera 130. For example, car number position determination The portion 115 holds the coordinates of the imaging range of the adjacent camera 130 in the orthogonal coordinate system with the image on the upper left side as the base point, the image in the horizontal direction as the X axis, and the image in the vertical direction as the Y axis. The setting of the area. This setting is different depending on each camera 130 that captures the image. The car number position determining unit 115 refers to the camera 130 of the image in which the car number is recognized by the optical character with reference to the information of the camera ID. Further, the car number position determining unit 115 refers to the coordinates of the setting corresponding to the specific camera 130 and the information of the center position of the car number detecting area, and determines whether the position of the car number in the image is adjacent to the camera 130. Within the camera range. As a result, when the vehicle number position determination unit 115 determines that the position of the vehicle number in the image is not within the imaging range of the adjacent camera 130 (S303: NO), the vehicle number data integration unit 125 transmits the above-described one vehicle. ID information of the data.

When the car number data integration unit 125 of the car number data processing device 110 receives the material ID transmitted from the car number position determining unit 115, the car number data identified by the material ID is used as the integrated car number data. (S307). More specifically, the car number data integration unit 125 integrates the above-mentioned one car number data identified by the material ID received from the car number position determining unit 115 from the information stored in the car number data storage unit 126. ? The value of the information (yes or no) has been rewritten from "No" to "Yes".

As described above, when the image captured by the camera 130 detects that the position of the car number is outside the imaging area of the adjacent camera 130, the car number data processing device 110 will include the car number information of the car number information. Set to the integrated car number information.

On the other hand, in step S303, when the car number position determining unit 115 determines that the position of the car number in the image is within the imaging range of the adjacent camera 130 (S303: YES), the optical character recognition is determined. The part 116 transmits the material ID of the above-mentioned car number data.

Furthermore, when the car number data generating device 150 does not successfully perform optical character recognition, the information of the center position of the car number detecting area is empty. In this case, the car number position determination unit 115 refers to the information of the camera ID and the information of the center position of the vehicle detection area, and determines whether the position of the car number in the image is within the imaging range of the adjacent camera 130.

When the optical character recognition determining unit 116 of the car number data processing device 110 receives the material ID transmitted from the car number position determining unit 115, it determines that the information included in the one car number data identified by the material ID is represented by Whether the part containing the optical character recognition is not included in the car number (S304). More specifically, the optical character recognition determination unit 116 reads out the above-mentioned vehicle number data identified by the material ID received from the vehicle number position determination unit 115 from the information stored in the vehicle number data storage unit 126. Information. Further, the optical character recognition determining unit 116 determines whether or not the car number indicated by the information includes a portion incapable of performing optical character recognition. For example, when the optical character recognition determination unit 116 includes "?" in the string of the car number, it is determined that the car number includes a portion where optical character recognition cannot be performed. As a result, when it is determined that the vehicle number does not include the portion where the optical character recognition cannot be performed (S304: NO), the optical character recognition determination unit 116 transmits the material ID of the one vehicle number data to the same vehicle number search unit 117.

When the vehicle number search unit 117 of the car number data processing device 110 receives the material ID transmitted from the optical character recognition determining unit 116, the search includes the car number included in the above-mentioned one car number data identified by using the material ID. Car number information with the same information (S305). More specifically, the same car number search unit 117 reads out the car of the above-mentioned car number data identified by the material ID received from the optical character recognition determining unit 116 from the information stored in the car number data storage unit 126. Information and camera ID information. Further, the car number search unit 117 reads the car number data including the information of the camera ID of the camera 130 adjacent to the camera 130 identified by the camera ID from the information stored in the car number data storage unit 126. Further, the same car number search unit 117 searches for the same information including the car number information included in the above-mentioned one car number data from the car number data read. As a result, when there is the car number data including the information of the same car number (S306: YES), the car number search unit 117 transmits the car ID data ID and the car number to the car number data integration unit 125. ID information of the data.

The car number data integration unit 125 receives the two pieces of data transmitted from the car number search unit 117. The ID is integrated with the two pieces of car number data identified by the respective material IDs (S307). More specifically, the car number data integration unit 125 reads out the two car number data identified by the respective material IDs received from the car number search unit 117 from the information stored in the car number data storage unit 126. Optical character recognition evaluation value information. Further, the car number data integration unit 125 compares the magnitudes of the values of the information of the two optical character recognition evaluation values. Further, the car number data integration unit 125 deletes the information of the optical character recognition evaluation value having a small value and other pieces of information associated with the information from the car number data storage unit 126. Further, the car number data integration unit 125 stores the information stored in the car number data storage unit 126 in association with the information of the optical character recognition evaluation value having a large value. The value of the information (yes or no) has been rewritten from "No" to "Yes".

Therefore, when there are two pieces of car number data obtained by optical character recognition of the images captured by the cameras 130 adjacent to each other, the car number data processing device 110 is more reliable in erasing the optical character recognition result. The small car number data retains the vehicle number data with a relatively reliable degree of optical character recognition results, and integrates the two car number data.

On the other hand, when it is determined in step S304 that the vehicle number includes a portion in which the optical character recognition cannot be performed (S304: YES), the optical character recognition determination unit 116 transmits the above-mentioned vehicle number data to the character interpolation unit 118. The ID of the data.

When the character interpolating unit 118 of the car number data processing device 110 receives the data ID from the optical character recognition determining unit 116, the character interpolating unit 118 cannot perform the character string included in the car number data identified by the data. The characters of the part of the optical character recognition are interpolated (S308). More specifically, the character interpolation unit 118 reads the car number information of the car number data recognized by the material ID received from the optical character recognition determining unit 116 from the information stored in the car number data storage unit 126. Further, the character interpolating unit 118 interpolates the character of the part of the car number that cannot be optically recognized. For example, the part that cannot be optically recognized is "?". The character interpolation unit 118 cannot perform optical character recognition For the part that becomes "?", for example, a library that displays the pattern of the string of the car number is used, and the character with the highest possibility is interpolated. Further, the character interpolation unit 118 rewrites the car number information stored in the car number data storage unit 126 to the car number information after the character of the portion where the optical character recognition cannot be performed. Further, the character interpolation unit 118 transmits the material ID of the above-described one-vehicle number data to the simultaneous-segment search unit 119.

On the other hand, in the case where there is no vehicle number data including the information of the same car number in step S306 (S306: YES), the same car number search unit 117 transmits the above-mentioned car number data to the simultaneous segment search unit 119. Data ID.

When the simultaneous search unit 119 of the car number data processing device 110 receives the material ID transmitted from the character interpolation unit 118 or the same car number search unit 117, the search includes the above-mentioned one car number data identified by the use of the material ID. The information of the first moment corresponding to the period from the initial time to the last moment, or the information of the last minute information (S309). More specifically, the segment search unit 119 reads out the car number identified by the material ID received from the character interpolation unit 118 or the same car number search unit 117 from the information stored in the car number data storage unit 126. Information on the initial detection time (year/month/day/hour: minute: second) of the data, and the last detection time (year/month/day/hour: minute: second). Further, the simultaneous segment search unit 119 calculates the time from the time indicated by the information of the first detection time (year/month/day/hour: minute: second) to the last detection time (year/month/day/hour: minute) : seconds) The time period indicated by the information. Further, the simultaneous segment search unit 119 refers to the information of the first detection time (year/month/day/hour: minute: second) of the plurality of car number data stored in the car number data storage unit 126, and the last detection time. The information of (year/month/day/hour: minute: second) is retrieved, and the vehicle number data including the time information corresponding to the calculated time period is retrieved. As a result, when there is one or more pieces of car number data including time information corresponding to the time period (S310: YES), the segment search unit 119 transmits the material ID of each car number data to the same car number search unit 117. And the ID of the above information on the vehicle number.

When the same car number search unit 117 receives the material ID transmitted from the simultaneous segment search unit 119, the search is performed. The car number includes the car number information (S311) of the same information as the car number information contained in the above-mentioned one car number data identified by the material ID. More specifically, the car number search unit 117 reads out the car number information of the car number data identified by each material ID received from the simultaneous search unit 119 from the information stored in the car number data storage unit 126. . Further, the same car number search unit 117 searches for the information including the car number information of the above-mentioned one car number data from the car number data searched by the simultaneous segment search unit 119. As a result, when there is the car number data including the information of the same car number (S312: YES), the car number search unit 117 transmits the car ID data ID and the car number to the car number data integration unit 125. ID information of the data.

When the vehicle number data integration unit 125 receives the two data IDs transmitted from the same vehicle number search unit 117, the vehicle number data integration unit 125 integrates the two vehicle number data identified by the respective material IDs (S307). More specifically, the car number data integration unit 125 reads out the two car number data identified by the respective material IDs received from the car number search unit 117 from the information stored in the car number data storage unit 126. Optical character recognition evaluation value information. Further, the car number data integration unit 125 compares the magnitudes of the values of the information of the two optical character recognition evaluation values. Further, the car number data integration unit 125 deletes the information of the optical character recognition evaluation value having a small value and other pieces of information associated with the information from the car number data storage unit 126. Further, the car number data integration unit 125 stores the information stored in the car number data storage unit 126 in association with the information of the optical character recognition evaluation value having a large value. The value of the information (yes or no) has been rewritten from "No" to "Yes".

Therefore, when the character string of the car number includes a portion incapable of performing optical character recognition, the car number data processing device 110 interpolates the character and then includes the camera that is present adjacent to each other at the same time period. The two car number data of the vehicle-related information in the area are integrated.

On the other hand, in the case where there is no vehicle number data including the information of the same car number in step S312 (S312: NO), the same car number search unit 117 transmits the simultaneous segment search unit to the same number plate type search unit 120. 119 The ID of each item number data searched, and one of the above ID of the vehicle number information.

When the same number plate type search unit 120 of the car number data processing device 110 receives the material ID transmitted from the car number search unit 117, it searches for the type of the number card included in the one car number data identified by the material ID. The car number information (S313) of the same information. More specifically, the same number plate type search unit 120 reads the number of the car number data identified by each material ID received from the same car number search unit 117 from the information stored in the car number data storage unit 126. Information on the type of card. Further, the same number plate type search unit 120 searches for the information including the information of the type of the number plate of the above-mentioned one car number data from the car number data searched by the same-segment search unit 119. As a result, when there is only one piece of car number data including information of the same number plate type (S314: YES → S315: YES), the same number plate type search unit 120 transmits the car number to the car number data integration unit 125. The ID of the data and the ID of the above information.

When the vehicle number data integration unit 125 receives the two data IDs transmitted from the same number card type search unit 120, the vehicle number data integration unit 125 performs the two vehicle number data identified by the respective material IDs (S307). More specifically, the car number data integration unit 125 reads out the two car number data identified by the respective material IDs received from the same number plate type search unit 120 from the information stored in the car number data storage unit 126. Car number information. At this time, when the car number information is included in only one piece of car number information, the car number data integration unit 125 deletes each piece of information of the car number data excluding the car number information from the car number data storage unit 126. Moreover, the car number data integration unit 125 integrates the car number data including the car number information. The value of the information (yes or no) has been rewritten from "No" to "Yes". On the other hand, when the car number information is not included in any of the two car number materials, the car number data integration unit 125 reads the two cars from the information stored in the car number data storage unit 126. Information on the vehicle detection evaluation value of the data. Further, the car number data integration unit 125 compares the magnitudes of the values of the information of the two vehicle detection evaluation values. Further, the vehicle number data integration unit 125 deletes the information of the vehicle detection evaluation value having a smaller value and the other information associated with the information from the vehicle number data storage unit 126. Moreover, the car number data integration The unit 125 stores the information stored in the vehicle number data storage unit 126 in association with the information of the vehicle detection evaluation value having a large value. The value of the information (yes or no) has been rewritten from "No" to "Yes".

Thus, in the case where the vehicle number data including the information of the same car number does not exist, the car number data processing device 110 integrates the two car number data including the information of the same number plate type.

On the other hand, in the case where there are a plurality of pieces of the car number data including the information of the same number of card types in the steps S314 to S315 (S314: YES → S315: NO), the same number plate type search unit 120 goes to the vehicle speed evaluation unit. 121. The time period evaluation unit 122 and the detection position evaluation unit 123 transmit the data ID of each of the plurality of vehicle number data and the material ID of the one vehicle number data.

When the vehicle speed evaluation unit 121 of the car number data processing device 110 receives the material ID transmitted from the same number plate type search unit 120, it evaluates the vehicle speed indicated by the information included in the one car number data, and includes the same number plate. The type search unit 120 searches for the degree to which the vehicle speed indicated by the information in each of the plurality of vehicle number data matches (S316). More specifically, the vehicle speed evaluation unit 121 reads the vehicle speed (km of the vehicle number data identified by each material ID received from the same number plate type search unit 120 from the information stored in the vehicle number data storage unit 126. /h) Information. Further, the vehicle speed evaluation unit 121 evaluates the information of the vehicle speed (km/h) of the vehicle number data and the information of the vehicle speed (km/h) of the plurality of vehicle number data searched by the same number card type search unit 120. The degree of consistency. For example, the vehicle speed evaluation unit 121 evaluates the value of the information of the vehicle speed (km/h) as a central value and assumes that the coincidence amount of the two normal distributions with respect to the normal distribution of the measured values of the vehicle speed is equal to the vehicle speed. Further, the vehicle speed evaluation unit 121 transmits, to the vehicle number data integration unit 125, the material ID of the vehicle number data, the data ID of the plurality of vehicle number data searched by the same number card type search unit 120, and the evaluation result of the degree of coincidence of the vehicle speed. .

The time period evaluation unit 122 of the car number data processing device 110 receives the self-same number card type search. The data ID sent by the cable unit 120 evaluates the time period from the first detection time to the last detection time of the vehicle indicated by the information included in the vehicle number data, and the same number card type search unit 120 The degree of coincidence of the time period from the initial detection time to the last detection time of the vehicle indicated by the information in each of the plurality of vehicle number data (S317). More specifically, the time period evaluating unit 122 reads out the initial detection of the car number data identified by each material ID received from the same number plate type search unit 120 from the information stored in the car number data storage unit 126. Measurement time (year/month/day/hour: minute: second), and the last detection time (year/month/day/hour: minute: second). Further, the period evaluation unit 122 evaluates the time from the first detection time (year/month/day/hour: minute: second) of the above-mentioned vehicle number data to the last detection time (year/month/day/hour) The time period of the information of the minute:second) and the first detection time (year/month/day/hour:minute:second) of the plurality of car number data searched by the same number plate type search unit 120 The degree of coincidence of the time from the moment of information to the last moment of detection (year/month/day/hour: minute: second).

Further, the time slot evaluation unit 122 transmits the material ID of the one car number data, the material ID of the plurality of car number data searched by the same number plate type search unit 120, and the evaluation result of the degree of coincidence of the time period to the car number data integration unit 125. .

When the detection position evaluation unit 123 of the car number data processing device 110 receives the material ID transmitted from the same number plate type search unit 120, it evaluates the detection position of the vehicle indicated by the information included in the one car number data, The degree of coincidence with the detection position of the vehicle indicated by the information included in the plurality of pieces of the vehicle number data searched by the same number plate type search unit 120 (S318). More specifically, the detection position evaluation unit 123 reads out the camera ID and the vehicle table identified by the respective material IDs received from the same number plate type search unit 120 from the information stored in the car number data storage unit 126. Information on the number (set) and the detection location (the first). Further, the detection position evaluation unit 123 refers to the information, and evaluates the detection position of the vehicle indicated by the information included in the vehicle number data, and the plurality of pens searched by the same number plate type search unit 120. Vehicle detection in the information in the vehicle number information The degree of consistency of location. For example, the vehicle indicated by the information contained in a vehicle number data is set as a camera by the camera 130a. Moreover, it is assumed that the camera 130a detects a total of two vehicles including the vehicle during the period in which the vehicle is detected. Further, it is assumed that the camera 130a detects the vehicle at the position of the second station on the left side of the two vehicles as viewed in the forward direction. In this case, the detection position evaluation unit 123 detects that the camera 130b detects the detection position of the first vehicle from the left side, and evaluates that it is consistent with the detection position of the vehicle indicated by the information contained in the vehicle number data. The highest degree. Further, the detection position evaluation unit 123 transmits the material ID of the one car number data, the data ID of the plurality of car number data searched by the same number plate type search unit 120, and the detection position to the car number data integration unit 125. The result of the evaluation of the degree.

When the vehicle number data integration unit 125 receives the data ID and the evaluation result transmitted from the vehicle speed evaluation unit 121, the time period evaluation unit 122, and the detection position evaluation unit 123, the vehicle number data and the vehicle speed evaluation unit 121 are The vehicle number data of the highest evaluation result of the period evaluation unit 122 and the detection position evaluation unit 123 is integrated (S307). More specifically, the car number data integration unit 125 specifies the car number data that is the highest in the evaluation result transmitted from the time period evaluation unit 122 and the detection position evaluation unit 123. Further, the car number data integration unit 125 integrates the car number data with the above-mentioned one car number data. At this time, when the car number information is included in only one piece of car number information, the car number data integration unit 125 deletes each piece of information of the car number data excluding the car number information from the car number data storage unit 126. Moreover, the car number data integration unit 125 integrates the car number data including the car number information. The value of the information (yes or no) has been rewritten from "No" to "Yes". On the other hand, when the car number information is not included in any of the two car number materials, the car number data integration unit 125 reads the two cars from the information stored in the car number data storage unit 126. Information on the vehicle detection evaluation value of the data. Further, the car number data integration unit 125 compares the magnitudes of the values of the information of the two vehicle detection evaluation values. Further, the vehicle number data integration unit 125 deletes the information of the vehicle detection evaluation value having a smaller value and the other information associated with the information from the vehicle number data storage unit 126. Moreover, the car number data integration unit 125 stores the car number in association with the information of the vehicle detection evaluation value having a large value. Is the integration of the material storage unit 126 completed? The value of the information (yes or no) has been rewritten from "No" to "Yes".

Therefore, when there is no car number data including the information of the same car number, the car number data processing device 110 detects the speed of the vehicle which is the object of the information included in the one car number data, and detects the vehicle. The time period and the location of the vehicle are evaluated, and the most likely number of the plurality of vehicle number data including the information of the same number type is integrated with the above-mentioned one-number data.

On the other hand, in the case where the vehicle number data is not present in the step S310 (S310: NO), the segment search unit 119 transmits the material ID of the above-described vehicle number data to the imaging time determination unit 124. In the same manner, in the case where the vehicle number data is not present in the step S314 (S314: NO), the same number plate type search unit 120 transmits the material ID of the above-mentioned vehicle number data to the imaging time determination unit 124.

When the imaging time determination unit 124 of the car number data processing device 110 receives the material ID transmitted from the simultaneous segment search unit 119 or the same number plate type search unit 120, it determines that it is included in the car number data identified by the material ID. Whether or not the imaging time of the image in the optical character recognition performed by each car number data generating device 150 is earlier (S319) than the time indicated by the last detected time information of the vehicle. More specifically, the imaging time determination unit 124 reads out the vehicle identified by the material ID received from the same-segment search unit 119 or the same-number type search unit 120 from the information stored in the vehicle number data storage unit 126. Information on the last detection time (year/month/day/hour: minute: second) of the data. Further, the imaging time determination unit 124 compares the last detected time of the vehicle indicated by the information with the imaging time of the image in the optical character recognition process indicated by the data received by the last self-inspection data receiving unit 111. As a result, when the imaging time of the image in the optical character recognition processing is earlier than the last detection time of the vehicle (S319: YES), the imaging time determination unit 124 performs the next processing. Always on standby.

Therefore, there is no vehicle number including the information that can be integrated in the above vehicle number data. In the case of the material, when there is an image in the optical character recognition process that is taken at a later time than the last detection time of the vehicle indicated by the information contained in the information contained in the vehicle number data The car number data processing device 110 does not perform the integration process of the above-described car number data.

On the other hand, in step S319, when the imaging time of the image in the optical character recognition processing is later than the last detection time of the vehicle (S310: NO), the imaging time determination unit 124 goes to the vehicle. The number data integration unit 125 transmits the material ID of the above-mentioned vehicle number data.

When receiving the material ID transmitted from the imaging time determination unit 124, the vehicle number data integration unit 125 sets the vehicle number data identified by the material ID as the integrated vehicle number data (S307). More specifically, the vehicle number data integration unit 125 integrates the storage stored in the information of the vehicle number data storage unit 126 in association with the data received from the imaging time determination unit 124. The value of the information (yes or no) has been rewritten from "No" to "Yes".

Therefore, when there is no vehicle number data containing the information that can be integrated in the above-mentioned vehicle number data, there is no final detection of the vehicle indicated by the information contained in the vehicle number information. When the time is the image in the optical character recognition process photographed at an earlier time, the car number data processing device 110 sets the car number data as the integrated car number data.

As described above, the plurality of cameras 130 are arranged side by side in the width direction above the road R10 so that the imaging ranges adjacent to each other are overlapped, and the time-lapse imaging is performed on the road obliquely below. Further, the car number data processing device 110 includes car number information including car number information obtained by optical character recognition of an image captured by a camera 130, and a photograph of the camera 130 adjacent to the camera 130. In the vehicle number information of the car number information obtained by optical character recognition, one car number material is retained and the other car number data is deleted, thereby integrating the car number data of the information related to the same vehicle. Thus, the image captured by each camera 130 can be optically represented by the car number data processing system 100. The data indicating the car number of the same vehicle in the plurality of pieces of the identification number indicating the number of the number plate is set as a piece of data for processing.

Further, as described above, the car number data processing device 110 searches for inclusion and photographing of the camera 130 from the car number data obtained by optically recognizing the image captured by the adjacent camera 130 of the camera 130. The image number of the information with the same car number information contained in the car number data obtained by optical character recognition. Further, the car number data processing device 110 integrates the car number data obtained by optically recognizing the image captured by the camera 130 with the car number data including the information of the same car number searched for. Thus, by the car number data processing system 100, the car number data can be integrated when there is a car number data containing information of the same car number.

Further, as described above, the car number data processing device 110 determines whether or not the car number obtained by optically recognizing the image captured by the camera 130 includes a portion incapable of performing optical character recognition. Further, when the car number data processing device 110 does not include a portion in which the optical character recognition is not possible, the car number data processing device 110 searches for the car number data including the same information as the car number information. Thus, by the car number data processing system 100, it is possible to search for car number data including information of the same car number by using car number information that does not include the part that cannot be optically recognized.

Further, as described above, the car number data processing device 110 determines whether or not the position of the car number in the image obtained by optically recognizing the image captured by the camera 130 is in the vicinity of the camera 130 of the camera 130. Within the scope. Further, the car number data processing device 110 determines whether or not the car number includes a portion incapable of performing optical character recognition when the position of the car number in the image is within the imaging range of the camera 130 adjacent to the camera 130. Therefore, by the car number data processing system 100, the car number data obtained by optical character recognition of the image can be obtained when the vehicle is imaged in an imaging area overlapping the imaging area of the adjacent camera 130. Set to be processed in conjunction with other vehicle number data.

Further, as described above, the car number data processing device 110 determines whether the car number data is integrated. After the car number information. Further, when the car number data processing device 110 is not integrated with the car number data, it is determined whether the position of the car number included in the car number data in the image is within the imaging range of the adjacent imaging device. Thus, with the car number data processing system 100, only unintegrated car number data can be processed as data to be integrated.

Further, as described above, the car number data generating device 150 is provided one-to-one corresponding to each of the cameras 130, and performs optical character recognition on the image captured by the corresponding camera 130 to generate car number data. Further, the car number data processing device 110 receives the inspection data from the car number data generating device 150. Further, the car number data processing device 110 receives the car number data from the car number data generating device 150. Moreover, the car number data processing device 110 determines whether or not the inspection data is received after receiving the car number data. Further, when the vehicle number data processing device 110 receives the inspection data after receiving the vehicle number data, it determines whether the vehicle number information is the integrated vehicle number data. Therefore, by the car number data processing system 100, deviations in the receiving time of the two car number data related to the same vehicle can be caused, for example, by the deviation of the time of the optical character recognition processing or the communication delay. In the case of the situation, in the case of receiving only one piece of car number information, try not to use the car number data as the object of integration processing.

Further, as described above, when the car number data generating device 150 performs optical character recognition on the image captured by the corresponding camera 130 to generate the car number information including the car number information of the vehicle number plate, the generation further includes the corresponding The camera 130 detects the information of the first moment of the vehicle and the information of the last minute information. Further, when the car number data processing device 110 includes a portion in which the optical character recognition cannot be performed, the car number data processing device 110 interpolates the character of the car number in the portion where the optical character recognition cannot be performed. Further, the car number data processing device 110 self-aligns the camera 130 when the car number includes a portion in which the optical character recognition cannot be performed, or when the car number data including the information of the same car number cannot be searched for. In the car number data obtained by optical image recognition of the image captured by the adjacent camera 130, the following car number data is searched, that is, the car number data obtained by optical character recognition of the image captured by the camera 130 is included. Including from the initial moment to the last moment The time of the engraved period is equivalent to the information of the first moment, or the information of the last moment. Further, the car number data processing device 110 searches for a car including the same information as the car number information after the interpolation character, from the car number data including the information of the first time corresponding to the above-mentioned searched period or the information of the last moment information. No. Information. As a result, the car number data processing system 100 can perform the integration process of the car number data by interpolating the characters of the portion incapable of performing optical character recognition even if there is a car number including a portion incapable of performing optical character recognition.

Further, as described above, when the car number data generating device 150 performs optical character recognition on the image captured by the corresponding camera 130 to generate the car number information including the car number information of the vehicle number plate, the vehicle number data is further included. The number of the car number information. Further, when the car number data processing device 110 searches for the car number data including the information of the same car number from the searched car number data, the image taken from the adjacent camera 130 of the camera 130 is captured. In the car number data obtained by optical character recognition, the car number data including the same information as the type of the number plate included in the car number data obtained by optical character recognition of the image captured by the camera 130 is searched for. Further, when the car number data generating device 150 searches for one car number data, the car number data generating device 150 integrates the car number data with the car number data obtained by optically recognizing the image captured by the camera 130. Thus, with the car number data processing system 100, even if it is impossible to search for the car number data with the same car number information, it is possible to integrate the two car number data including the information of the same number plate type.

Further, as described above, the car number data generating device 150 evaluates the car number obtained by optical character recognition of the image captured by a camera 130 when searching for a plurality of car number data including information of the same number plate type. The vehicle speed indicated by the information contained in the data is the same as the vehicle speed indicated by the information contained in the vehicle number data obtained by optical character recognition of the image captured by the camera 130 adjacent to the camera 130. Further, the car number data generating device 150 integrates the car number data including the information of the vehicle speed with a higher degree of evaluation. Thus, by the car number data processing system 100, even It is impossible to search for the car number information with the same information of the car number information or the type of the license plate, and it is also possible to integrate the car number data with the higher speed information of the vehicle photographed by the camera 130.

Further, as described above, the car number data processing device 110 evaluates the car number obtained by optical character recognition of the image captured by a camera 130 when searching for a plurality of car number data including information of the same number plate type. The information contained in the data represents the time period from the initial detection time of the vehicle to the last detection time, and the optical character recognition of the image captured by the camera 130 adjacent to the camera 130. The information contained in the information indicates the extent to which the time from the initial detection time of the vehicle to the last detection time is the same. Further, the car number data processing device 110 integrates the car number data including the time information having a higher degree of evaluation. Therefore, by the car number data processing system 100, even if it is impossible to search for the car number information of the car number information or the number of the license plate type, the information of the first detection time of the vehicle photographed from the camera 130 can be expressed. The vehicle number data with a higher degree of coincidence at the time indicated by the last detected time information of the vehicle is integrated.

Further, as described above, when the car number data generating device 150 performs optical character recognition on the image captured by the corresponding camera 130 to generate the car number information including the car number information of the vehicle number plate, the generation further includes The corresponding camera 130 detects the vehicle number information of the information of the detected position of the vehicle detected by all the vehicles detected during the time of the vehicle. Further, when the car number data processing device 110 searches for a plurality of car number data including information of the same number plate type, it evaluates the car number data obtained by optical character recognition of the image captured by the camera 130. The detection position of the vehicle indicated by the information and the detection position of the vehicle indicated by the information contained in the vehicle number data obtained by optical character recognition of the image captured by the camera 130 adjacent to the camera 130 The degree of consistency. Further, the car number data processing device 110 integrates the car number data including the information of the detected position with a higher degree of evaluation. Thus, by car number information The processing system 100 can integrate the vehicle number data with a higher degree of information of the detected position of the vehicle captured by the camera 130 even if the information of the number of the license plate type cannot be searched for.

Further, as described above, the car number data processing device 110 determines the car number when it is unable to search for the car number data of the detection time information of the vehicle including the same time period or the car number data including the information of the same number card type. Whether the imaging time of the image in the optical character recognition processing performed by the data generating device 150 is compared with the last detected vehicle included in the vehicle number data obtained by optical character recognition of the image captured by the camera 130 The moment is an earlier moment. Moreover, the car number data processing device 110 sets the car number data obtained by optical character recognition of the image captured by the camera 130 to be integrated when the imaging time is not earlier than the last time. Car number information. Thus, by the car number data processing system 100, when the image captured before the last detection time of the vehicle indicated by the information included in the information of the car number is in the optical character recognition process, The vehicle number data obtained by performing optical character recognition on the image is set as a material having the possibility of being integrated with the above-mentioned one-vehicle number data, and the integration processing of the above-mentioned one-vehicle number data is postponed.

Fig. 13 is a view showing an example of a hardware configuration of a computer 800 constituting the vehicle number data processing device 110 of the present embodiment. The computer 800 of the present embodiment includes a CPU peripheral unit including a CPU (Central Processing Unit) 802 and a RAM (Random Access Memory) 803 that are connected to each other by the main controller 801. a drawing controller 804 and a display 805; an input/output unit including a communication interface 807, a hard disk drive 808, and a CD-ROM (Compact Disk Read Only Memory) connected to each other by the input/output controller 806 The driver 809; and an existing input/output unit includes a ROM (Read Only Memory) 810, a floppy disk drive 811, and an input/output chip 812 connected to the input/output controller 806.

The main controller 801 connects the RAM 803 to the CPU 802 that accesses the RAM 803 at a higher transfer speed, and the drawing controller 804. The CPU 802 operates based on programs stored in the ROM 810 and the RAM 803 to control the respective units. The drawing controller 804 acquires image data generated by the CPU 802 or the like on the code frame buffer provided in the RAM 803, and displays it on the display 805. Instead, the graphics controller 804 can also internally include a code frame buffer that stores image data generated by the CPU 802 or the like.

The input/output controller 806 connects the main controller 801, a communication interface 807 as a relatively high-speed input/output device, a hard disk drive 808, and a CD-ROM drive 809. The hard disk drive 808 stores programs and data used by the CPU 802 in the computer 800. The CD-ROM drive 809 reads programs or materials from the CD-ROM 892 and supplies them to the hard disk drive 808 via the RAM 803.

Further, the input/output controller 806 is connected to the relatively low-speed input/output devices of the ROM 810, the floppy disk drive 811, and the input/output chip 812. The ROM 810 stores an activation program executed by the computer 800 at the time of startup, and/or a program dependent on the hardware of the computer 800, and the like. The floppy disk drive 811 reads a program or material from the floppy disk 893 and supplies it to the hard disk drive 808 via the RAM 803. The input and output wafer 812 connects the floppy disk drive 811 to the input and output controller 806, and connects various input and output devices to the input and output controller 806, for example, via parallel 埠, series 埠, keyboard 埠, mouse 埠, and the like.

The program supplied to the hard disk drive 808 via the RAM 803 is stored in a recording medium such as a floppy disk 893, a CD-ROM 892, or an IC (Integrated Circuit) card, and is provided by the user. The program is read from the recording medium, mounted to the hard disk drive 808 in the computer 800 via the RAM 803, and executed in the CPU 802.

The program installed in the computer 800 and having the computer 800 function as the car number data processing device 110 causes the computer 800 to function as the car number data integration unit 125, which optically includes the image captured by the camera 130 in step S307. The car number information of the car number information obtained by the character recognition, and the picture taken by the camera 130 adjacent to the camera 130 In the vehicle number information of the car number information obtained by optical character recognition, one car number material is retained and the other car number data is deleted, thereby integrating the car number data including the information related to the same vehicle;

Further, the program can also cause the computer 800 to function as the same car number search unit 117, in step S306, from the car number data obtained by optical character recognition of the image captured by the adjacent camera 130 of the camera 130. Searching for the car number data including the same information as the car number information contained in the car number data obtained by optically recognizing the image captured by the camera 130; and the car number data integration unit 125, in step S307 The car number data obtained by optical character recognition of the image captured by the camera 130 is integrated with the car number data searched by the car number search unit 117;

Furthermore, the program can also cause the computer 800 to function as an optical character recognition determining unit 116, which determines in step S304 whether or not the car number obtained by optically recognizing the image captured by a camera 130 includes optical character recognition. And the same vehicle number search unit 117, when the optical character recognition determination unit 116 determines that the vehicle number does not include the portion where the optical character recognition cannot be performed, searches for the information including the same information as the vehicle number information in step S305. Car number information; function.

Further, the program can also cause the computer 800 to function as the car number position determining unit 115. In step S303, it is determined whether or not the position of the car number obtained by optical character recognition of the image captured by the camera 130 is in the image. The imaging range of the camera 130 adjacent to the camera 130; and the optical character recognition determining unit 116 determines when the car number position determining unit 115 is within the imaging range of the camera 130 adjacent to the camera 130. In step S304, it is determined whether or not the part of the car number that cannot be optically recognized is displayed;

Further, the program may cause the computer 800 to function as an integrated data determining unit 114, which determines in step S302 whether the vehicle number data is the vehicle number data integrated by the vehicle number data integrating unit 125; and the vehicle number position determining unit 115 It is determined by the integrated data determining unit 114 that it is not In the case of the combined car number data, in step S303, it is determined whether the position of the car number included in the car number data in the image is within the imaging range of the adjacent camera 130;

Furthermore, the program can also cause the computer 800 to function as the inspection data receiving unit 111, which receives the inspection data from the vehicle number data generating device 150 in step S101; the vehicle number data receiving unit 112, in step S204, the vehicle number The data generating device 150 receives the vehicle number data; the receiving presence determining unit 113 determines in step S301 whether the checking data receiving unit 111 receives the inspection data after receiving the vehicle number data, and the integrated data determination When the reception presence determination unit 113 determines that the vehicle number information has been received by the vehicle number data receiving unit 112 and checks that the data receiving unit 111 has received the inspection data, in step S302, it is determined whether the vehicle number information is The integrated car number information; function.

Further, the program may cause the computer 800 to function as a character interpolation unit 118. When the optical character recognition determination unit 116 determines that the vehicle number includes a portion incapable of performing optical character recognition, the program is inserted in step S308. The character of the car number of the part in which the optical character recognition is not possible; and the segment search unit 119, when the optical character recognition determining unit 116 determines that the car number includes a portion incapable of performing optical character recognition, or searches for the same car number When the part 117 cannot search for the item number data including the information of the same car number, in step S309, the car number data obtained by optical character recognition of the image captured by the adjacent camera 130 of the camera 130 is used. Searching for the information of the first moment corresponding to the period from the initial time to the last moment, or the information of the last moment, contained in the vehicle number data obtained by optical character recognition of the image captured by the camera 130. The car number data; and the car number search unit 117, which is searched for the car number data searched by the simultaneous segment search unit 119, searches for inclusion and character interpolation in step 311. After the same character license plate information license plate number 118 interpolated data information; function.

Further, the program can also cause the computer 800 to function as the same number plate type search unit 120, which cannot search from the car number data searched by the simultaneous segment search unit 119 in the same car number search unit 117. When the car number data including the information of the same car number is retrieved, in step S313, the car number data obtained by optical character recognition of the image captured by the adjacent camera 130 of the camera 130 is searched for. a car number data of the same information as the type of the number plate included in the car number data obtained by optically recognizing the image captured by the camera 130; and the car number data integration unit 125, which is on the same number plate When the type search unit 120 searches for one piece of car number data, in step S307, the car number data and the car number data obtained by optical character recognition of the image captured by the camera 130 are integrated to function.

Further, in the program, the computer 800 may be used as the vehicle speed evaluation unit 121, and when the same number plate type search unit 120 searches for a plurality of pieces of car number data, the image captured by the camera 130 is evaluated in step S316. The vehicle speed indicated by the information contained in the vehicle number data obtained by optical character recognition and the vehicle number data obtained by optical character recognition of the image captured by the camera 130 adjacent to the camera 130 are included in the vehicle number data obtained by optical character recognition of the image captured by the camera 130 adjacent to the camera 130. The vehicle number data integration unit 125 and the vehicle number data integration unit 125 integrate the vehicle number data including the vehicle speed information of the higher degree of the vehicle speed evaluation unit 121 which is evaluated by the vehicle speed evaluation unit 121 in a step S307;

Further, the program may cause the computer 800 to be the period evaluation unit 122, and when the same number plate type search unit 120 searches for a plurality of pieces of car number data, in step S317, the picture taken by the camera 130 is evaluated. Optical character recognition from the initial time to the last time indicated by the information contained in the vehicle number data obtained by optical character recognition, and the image captured by the camera 130 adjacent to the camera 130 The degree of coincidence of the time period from the initial time to the last time indicated by the information contained in the obtained vehicle number data; and the vehicle number data integration unit 125, which evaluates the consistency of the included period evaluation unit 122 in step S307 At a higher level, the information of the vehicle number information is integrated; functioning.

Further, the program can also cause the computer 800 to function as a detection position evaluation unit 123, which When the same number plate type search unit 120 searches for a plurality of pieces of car number data, in step S318, it evaluates the information contained in the car number data obtained by optical character recognition of the image captured by the camera 130. The detection position, the degree of detection indicated by the information contained in the vehicle number data obtained by optical character recognition of the image captured by the camera 130 adjacent to the camera 130; and the integration of the vehicle number data In step S307, the unit 125 integrates the vehicle number data including the information of the detected position with a higher degree of evaluation that is detected by the detected position evaluation unit 123;

Further, in the program, the computer 800 may be used as the imaging time determination unit 124. When the same-segment search unit 119 or the same-number card type search unit 120 cannot search for the car number data, the car number is determined in step S319. Whether the imaging time of the image in the optical character recognition processing performed by the data generating device 150 is compared with the last detected vehicle included in the vehicle number data obtained by optical character recognition of the image captured by the camera 130 The time is an earlier time; and the vehicle number data integration unit 125 determines that the imaging time is not earlier than the last time when the imaging time determination unit 124 determines that the imaging time is not earlier than the last time, in step S307, The car number data obtained by the image captured by the camera 130 for optical character recognition is set as the integrated car number data;

By reading the information processing described in the programs into the computer 800, the specific mechanism that cooperates with the various hardware resources as the software, that is, the vehicle number data receiving unit 112, the inspection data receiving unit 111, and the receiving presence determination unit 113. Integrated data judging unit 114, car number position determining unit 115, optical character recognition determining unit 116, car number search unit 117, simultaneous segment search unit 119, character interpolation unit 118, same number plate type search unit 120, and vehicle speed The evaluation unit 121, the period evaluation unit 122, the detection position evaluation unit 123, the imaging time determination unit 124, the vehicle number data integration unit 125, and the vehicle number data storage unit 126 function. Further, by using these specific mechanisms to realize calculation or processing of information corresponding to the purpose of use of the computer 800 in the present embodiment, a unique car number data processing device 110 corresponding to the purpose of use is constructed.

As an example, when communication is performed between the computer 800 and an external device or the like, the CPU 802 executes a communication program loaded on the RAM 803, and instructs the communication interface 807 to perform communication processing based on the processing contents described in the communication program. The communication interface 807 is controlled by the CPU 802, and reads the transmission data stored in the transmission buffer area or the like provided on the memory device such as the RAM 803, the hard disk drive 808, the floppy disk 893, or the CD-ROM 892, and transmits it to the network. The road or the received data received from the network is written to a receiving buffer area or the like provided on the memory device. As described above, the communication interface 807 can transmit and receive data to and from the memory device by using the direct memory access method. Alternatively, the CPU 802 can read data from the memory device or the communication interface 807 as a transmission source, and The data is written to the communication interface 807 or the memory device to be transmitted, and the data is transmitted and received.

Further, the CPU 802 reads all or a required portion from a file or a database stored in an external memory device such as a hard disk drive 808, a CD-ROM 892, or a floppy disk 893 by direct memory access transfer or the like. The RAM 803 performs various processing on the data on the RAM 803. Further, the CPU 802 writes the data of the end processing back to the external memory device by direct memory access transfer or the like.

In the above processing, since the RAM 803 can be regarded as temporarily holding the contents of the external memory device, in the present embodiment, the RAM 803 and the external memory device are collectively referred to as a memory, a memory unit, a memory device, and the like. Various kinds of information such as programs, materials, tables, and databases in the present embodiment are stored in the above-mentioned memory device, and become information processing objects. Moreover, the CPU 802 can also hold a portion of the RAM 803 in the cache memory and read and write on the cache memory. In this form, the cache memory also bears a part of the function of the RAM 803. Therefore, in the present embodiment, the cache memory is also included in the RAM 803, the memory, and the like, except for the case where the memory is displayed differently. And / or memory device.

Moreover, the CPU 802 refers to the command queue of the program for the data read from the RAM 803. Various processes including various calculations, information processing, condition determination, information retrieval, replacement, and the like described in the present embodiment are included, and are written back to the RAM 803. For example, when the CPU 802 determines the condition, it determines whether the various variables shown in the embodiment satisfy the conditions of being larger, smaller, larger, lower, or equal to other variables or constants, and the conditions are satisfied, or In the case of non-establishment, a branch is formed toward a different command queue, or a subroutine is called.

Further, the CPU 802 can search for information stored in a file, a database, or the like in the memory device. For example, when a plurality of entries in which the attribute values of the second attribute are associated with the attribute values of the first attribute are stored in the memory device, the CPU 802 can retrieve and specify from the plurality of entries stored in the memory device. An entry in which the condition of the attribute value of the first attribute matches, the attribute value of the second attribute stored in the entry is read, and the attribute value of the second attribute associated with the first attribute satisfying the specific condition is obtained.

The program or module shown above can also be stored in an external memory medium. As the memory medium, in addition to the floppy disk 893 and the CD-ROM 892, an optical recording medium such as a DVD (Digital Versatile Disk) or a CD (Compact Disk) or MO (Magneto-Optical disk) can be used. A semiconductor memory such as a magneto-optical recording medium, a magnetic tape medium, or an IC card. Further, a memory medium such as a hard disk or a RAM provided in a server system connected to a dedicated communication network or the Internet may be used as a recording medium, and the program may be provided to the computer 800 via the network.

Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments. It will be apparent to those skilled in the art that various modifications and improvements can be made to the above-described embodiments. It is to be understood that the form in which such changes or improvements are added may be included in the technical scope of the present invention.

It should be noted that the order of execution of the processes, sequences, steps and stages in the systems, methods, devices, programs and recording media shown in the scope of the claims, the description and the drawings is not specifically stated as "before" , "before", etc., as long as it is not after The output of the pre-processing used in the processing can be implemented in any order. The operation flow in the scope of application, the description and the drawings, even if it is used for the sake of convenience, "first", "second", etc., does not mean that it must be implemented in this order.

[Industrial availability]

According to several aspects of the present invention, car number information including car number information of a vehicle number plate obtained by optical character recognition of an image can be processed.

100‧‧‧Car number data processing system

110‧‧‧Car number data processing device

130a~130d‧‧‧Camera

150a~150d‧‧‧Car number data generating device

Aa‧‧‧ camera range of camera 130a

Ab‧‧‧ camera range of camera 130b

Ac‧‧‧ camera range of camera 130c

Ad‧‧‧camera 130d camera range

G‧‧‧ Gate

R10‧‧‧ Road

R11‧‧ driveway

R12‧‧ driveway

R13‧‧ driveway

Claims (12)

A car number data processing system for processing car number information including car number information of a vehicle number plate obtained by optical character recognition of an image, and comprising: a plurality of camera devices, which are arranged in such a manner that the imaging ranges are coincident. Performing time-lapse imaging of the road; and a vehicle number data processing device for processing the vehicle number data; and the vehicle number data processing device includes: a vehicle number data integration unit, which includes an image captured by the camera device a car number information of the car number information obtained by optical character recognition, and a car number information obtained by optical character recognition of an image captured by an image pickup device having an imaging range overlapping the imaging range of the image pickup device One of the number information is reserved to delete another vehicle number data, thereby integrating the vehicle number data including the information related to the same vehicle; the same vehicle number searching unit is provided with the above-mentioned camera device In the car number data obtained by the optical character recognition of the image captured by the imaging device in which the imaging range is coincident, the search includes a car number data of the same information of the car number information included in the car number data obtained by optical character recognition of the image captured by the image capturing device; the optical character recognition determining unit determining the image capturing device Whether the image number obtained by performing optical character recognition on the captured image includes a portion that cannot be optically recognized; the car number position determining unit determines a car obtained by optical character recognition of an image captured by the imaging device. Whether it is at a position in the image, whether it is photographed by an imaging device having an imaging range that coincides with the imaging range of the above-mentioned imaging device In the image range; and the integrated data determination unit determines whether the vehicle number information is the vehicle number data integrated by the vehicle number data integration unit; wherein the vehicle number data integration department will take a picture of the camera device The vehicle number data obtained by performing optical character recognition is integrated with the vehicle number data searched by the same vehicle number search unit; the same vehicle number search unit determines that the vehicle number does not include optical in the vehicle number determination unit. In the case of the character recognition portion, the vehicle number data including the same information as the vehicle number information is searched for; the optical character recognition determining unit determines that the vehicle number position determining unit overlaps with the imaging range of the image capturing device. When the imaging range of the imaging device is within the imaging range, it is determined whether the car number includes a portion that cannot be optically recognized; and the car number position determining unit determines that the integrated vehicle data is not integrated In the case of the case, it is determined whether the position of the car number contained in the car number data in the image is in another camera device Like the range. The car number data processing system of claim 1, further comprising: a plurality of car number data generating devices, each of which is provided corresponding to each of the image capturing devices, and optically images corresponding to the image capturing device Character identification, and generating the above-mentioned car number data; and the car number data processing device further includes: an inspection data receiving unit that receives inspection data for checking the soundness of the network from the car number data generating device; a part that receives the vehicle number data from the vehicle number data generating device; and a receiving presence determining unit that receives the vehicle number at the vehicle number data receiving unit After the data, it is determined whether the inspection data receiving unit receives the inspection data, and the integrated data determination unit determines that the inspection data receiving unit receives the vehicle number information after the vehicle number data receiving unit receives the vehicle number information. In the case of the above-mentioned inspection data, it is determined whether the vehicle number information is the vehicle number data integrated by the above-mentioned vehicle number data integration department. The car number data processing system of claim 2, wherein the car number data generating device generates the car number information including the car number information of the vehicle number plate by performing optical character recognition on the image captured by the corresponding camera device, And generating a vehicle number data further including information of the first moment of the vehicle and information of the last moment detected by the corresponding camera device, wherein the vehicle number data processing device further includes: a character interpolation unit that determines the optical character recognition When it is determined that the vehicle number includes a portion incapable of performing optical character recognition, the character of the car number of the portion where the optical character recognition cannot be performed is interpolated; and the simultaneous search unit determines the optical character recognition determining unit When the vehicle number includes a portion incapable of performing optical character recognition, or when the same vehicle number search unit cannot search for the vehicle number data including the information of the same vehicle number, the self-aligning device has a camera device The car number data obtained by optical character recognition of the image captured by the camera unit of the imaging range that coincides with the imaging range Searching for information including the first time corresponding to a period from the initial time to the last time in the vehicle number data obtained by optical character recognition of the image captured by the camera device, or The car number information of the last moment information; and the car number search unit searches for the car number information searched by the simultaneous search unit, and the search includes the same car number information as the character interpolated by the character interpolating unit Information on the number of the car. The car number data processing system of claim 3, wherein the car number data generating device generates the car number information including the car number information of the vehicle number plate by performing optical character recognition on the image captured by the corresponding camera device, And generating a vehicle number data further including information on the type of the license plate of the vehicle; the vehicle number data processing device further includes: a same number plate type search unit, wherein the same car number search unit cannot search from the simultaneous search unit When searching for the car number data including the information of the same car number in the car number data, the car obtained by optical character recognition from the image captured by the image capturing device having the imaging range overlapping with the imaging range of the above-mentioned imaging device is obtained. In the data, searching for the car number information of the same information as the information of the above-mentioned number plate type included in the car number data obtained by optical character recognition of the image captured by the above-mentioned camera device; and the above-mentioned car number data integration When the above-mentioned same number plate type search unit searches for one car number data, the car number information and the above-mentioned camera are loaded. The license plate number of the captured image data obtained from the integration of optical character recognition. The car number data processing system of claim 4, wherein the car number data generating device generates the car number information including the car number information of the vehicle number plate by performing optical character recognition on the image captured by the corresponding camera device, And generating the vehicle number information further including the vehicle speed information of the vehicle; the vehicle number data processing device further includes: a vehicle speed evaluation unit, wherein when the same number plate type search unit searches for the plurality of vehicle number data, the evaluation The vehicle speed indicated by the information contained in the vehicle number data obtained by the optical character recognition of the image captured by the imaging device is captured by an imaging device having an imaging range that coincides with the imaging range of the imaging device. The degree of coincidence of the above-mentioned vehicle speeds represented by the information contained in the vehicle number data obtained by optical character recognition; The vehicle number data integration unit integrates the vehicle number information including the vehicle speed information having a higher degree of evaluation as determined by the vehicle speed evaluation unit. The car number data processing system of claim 4 or 5, wherein the car number data processing device further includes: a time period evaluation unit that evaluates a case when the same number plate type search unit searches for a plurality of car number data a period of time from the initial time to the last moment indicated by the information contained in the vehicle number data obtained by the image recognition by the image capturing device, and the imaging range of the pair of imaging devices The degree of coincidence from the initial time to the last time indicated by the information contained in the car number data obtained by the image recognition device of the image capturing device of the coincident imaging range; and the above number information The integration unit integrates the vehicle number data including the time information having a higher degree of agreement as estimated by the time period evaluation unit. The vehicle number data processing system of claim 4 or 5, wherein the vehicle number data generating device generates optical number information including the vehicle number information of the vehicle number plate by performing optical character recognition on the image captured by the corresponding camera device. And generating vehicle number data further including information of a detected position of the detected vehicle relative to a detected position of all the vehicles detected by the corresponding camera device during the time period of detecting the vehicle; and the vehicle number data processing The device further includes: a detection position evaluation unit that evaluates the car number data obtained by optical character recognition of an image captured by the camera device when the same number plate type search unit searches for a plurality of car number data The detection position indicated by the information contained in the information is included in the vehicle number data obtained by optical character recognition of an image captured by an imaging device having an imaging range that coincides with the imaging range of the imaging device. The extent to which the above-mentioned detection locations indicated by the information are consistent; and The car number data integration unit integrates the car number data including the information of the detected position having a higher degree of coincidence as determined by the detection position evaluation unit. The car number data processing system of claim 4 or 5, wherein the car number data processing device further includes: an imaging time determination unit that cannot search for the car number data in the simultaneous segment search unit or the same number plate type search unit; In the case of the case, it is determined whether the imaging time of the image in the optical character recognition process performed by the car number data generating device is included in the car number data obtained by optical character recognition of the image captured by the camera device. When the last time of detecting the vehicle is an earlier time, the vehicle number data integration unit determines that the imaging time is not earlier than the last time, when the imaging time determination unit determines that the imaging time is not earlier than the last time The vehicle number data obtained by performing optical character recognition on an image captured by the above-mentioned imaging device is set as the integrated vehicle number data. A vehicle number data processing method for processing a vehicle number information including a vehicle number information obtained by optical character recognition of an image, and comprising: a vehicle number data integration stage, the system comprising a pair of imaging ranges a vehicle number information of a car number information obtained by optical character recognition of an image captured by one of the plurality of imaging devices that are time-lapse imaged by a plurality of imaging devices, and an image pair having the same image One of the car number information of the car number information obtained by the optical character recognition of the image captured by the image capturing device of the imaging range of the device is reserved, and the other car number data is deleted, thereby including The vehicle number data of the information related to the same vehicle is integrated; in the same car number search phase, the vehicle is obtained by optical character recognition of an image captured by an image capturing device having an imaging range that coincides with the imaging range of the above-mentioned imaging device. In the data, the search includes and photographs the camera device The image data of the same information of the above-mentioned car number information contained in the car number data obtained by optical character recognition; the optical character recognition judging stage is determined by performing optical character recognition on an image captured by the above-mentioned camera device Whether the obtained car number includes a portion that cannot be optically recognized; the car number position determining stage determines whether the car number obtained by optical character recognition of an image captured by the camera device is in the image position, In an imaging range of an imaging device having an imaging range that coincides with an imaging range of the imaging device; and an integrated data determination stage, determining whether the vehicle number data is a vehicle number data integrated in the vehicle number data integration stage In the above-mentioned car number data integration stage, the car number data obtained by optical character recognition of the image captured by the above camera device is integrated with the car number data searched in the same car number search stage; In the number search phase, it is determined in the optical character recognition determination stage that the number of the vehicle number is not included In the case of the character recognition part, searching for the vehicle number data including the same information as the vehicle number information; in the optical character recognition determination stage, determining that the vehicle number position determination stage has When the imaging range of the imaging range of the imaging range is overlapped, it is determined whether the part contains a portion incapable of performing optical character recognition; and in the car number position determination stage, the integrated data determination stage is determined. When it is not the case of the integrated car number data, it is determined whether the position of the car number contained in the car number data in the image is within the imaging range of the other imaging device. A vehicle number data processing device for processing a vehicle number information including vehicle number information of a vehicle number plate obtained by optical character recognition of an image, and comprising: The car number data integration unit includes car number information obtained by optical character recognition of an image captured by one of the plurality of imaging devices that are set to coincide with the imaging range and time-lapse imaging of the road. And the vehicle number data of the vehicle number information obtained by optical character recognition of the image captured by the image capturing device having the imaging range overlapping with the imaging range of the imaging device is added Retaining and deleting another vehicle number data, thereby integrating vehicle number data including information related to the same vehicle; the same vehicle number searching unit is for self-aligning the imaging range having an imaging range coincident with the above-mentioned imaging device In the car number data obtained by the optical character recognition of the image captured by the camera device, the search includes the same car number information included in the car number data obtained by optical character recognition of the image captured by the camera device. The vehicle number information of the information; the optical character recognition determining unit determines that the image captured by the image capturing device is lighted Whether the car number obtained by the character recognition includes a portion incapable of performing optical character recognition; the car number position determining unit determines the position of the car number obtained by optical character recognition on the image captured by the image capturing device in the image. Whether it is within an imaging range of an imaging device having an imaging range that coincides with an imaging range of the imaging device; and an integrated data determining unit that determines whether the vehicle number data is a vehicle integrated by the vehicle number data integration unit No. information; wherein the car number data integration department integrates the car number data obtained by optical character recognition of an image captured by the camera device, and the car number data searched by the same car number search unit; When the optical character recognition determination unit determines that the vehicle number does not include a portion incapable of performing optical character recognition, the search unit includes a vehicle number data of the same information as the vehicle number information; wherein the optical character recognition determining unit determines that the image range of the imaging device having an imaging range overlapping with an imaging range of the imaging device is within the imaging range of the imaging device In the case of the vehicle number, the vehicle number position determining unit determines that the vehicle number information is not integrated, and the vehicle number position determining unit determines that the vehicle number data is not integrated. Whether the position of the included car number in the image is within the imaging range of another camera. A program for causing a computer to function as a car number data processing device that processes car number information including a car number information obtained by optical character recognition of an image, and the program makes The computer functions as a component of the car number data integration unit, which includes a picture captured by one of the plurality of imaging devices that are set to overlap with the imaging range and that is temporally imaged on the road. a car number information such as car number information obtained by optical character recognition, and car number information obtained by optical character recognition of an image captured by an image pickup device having an imaging range that coincides with an imaging range of the image pickup device One of the car number data is retained and the other car number data is deleted, thereby integrating the car number data including the information related to the same vehicle; the same car number search department, which is self-contained with one of the above A car number obtained by optical image recognition of an image captured by an imaging device of an imaging range in which the imaging range of the imaging device is coincident And searching for a vehicle number data including the same information as the vehicle number information included in the vehicle number data obtained by optical character recognition of the image captured by the image capturing device; the optical character recognition determining unit determining Whether or not the car number obtained by optical character recognition of an image captured by the above-mentioned imaging device cannot be optically a portion for character recognition; a car number position determining unit that determines whether a car number obtained by optical character recognition of an image captured by the image capturing device is in an image, and whether or not there is an image with the image capturing device And an integrated data determination unit that determines whether the vehicle number information is the vehicle number data integrated by the vehicle number data integration unit; wherein the vehicle number data integration department is Integrating the car number data obtained by optical character recognition on an image captured by the imaging device with the car number data searched by the car number search unit; the car number search unit determines the optical character recognition determining unit When the vehicle number does not include a portion that cannot be optically recognized, the vehicle number data including the same information as the vehicle number information is searched for; the optical character recognition determining unit determines that the vehicle number position determining unit has When it is within the imaging range of the imaging device of the imaging range that coincides with the imaging range of the imaging device, it is determined that Whether the number includes a portion in which the optical character recognition is not possible; and the vehicle number position determining unit determines that the vehicle number included in the vehicle number data is in a case where the integrated data determination unit determines that the vehicle number data is not integrated Whether the position in the image is within the imaging range of another camera. A recording medium recording a program for causing a computer to function as a car number data processing device for processing car number information including a car number information obtained by optical character recognition of an image And the recording medium records a program that causes the computer to function as a component of the following: a car number data integration unit, which is configured to include a method in which the imaging ranges are overlapped. And the vehicle number information of the car number information obtained by optical character recognition of one of the plurality of imaging devices that are time-lapsed by the road, and the image range of the pair of the imaging devices One of the car number data of the car number information obtained by the image capturing device of the image capturing range of the coincident imaging range is reserved, and the other car number data is deleted, thereby including the same vehicle. The vehicle number data of the information is integrated; the same vehicle number search unit is obtained from the vehicle number data obtained by optical character recognition of the image captured by the image capturing device having the imaging range overlapping with the imaging range of the above-mentioned imaging device, Searching for a vehicle number data including the same information as the vehicle number information contained in the vehicle number data obtained by optical character recognition of the image captured by the above-mentioned imaging device; the optical character recognition determining unit determining the same Whether the image number obtained by the above-mentioned camera device for optical character recognition has an optical character recognition cannot be performed. a car number position determining unit that determines whether a position of a car number obtained by optical character recognition of an image captured by the image capturing device in an image is coincident with an imaging range of the image capturing device The imaging range of the imaging device of the imaging range; and the integrated data determination unit determines whether the car number data is the car number data integrated by the car number data integration unit; wherein the car number data integration department is one The car number data obtained by the optical character recognition of the image captured by the imaging device is integrated with the car number data searched by the car number search unit; the car number search unit determines the car at the optical character recognition determining unit. If the number does not contain a portion that cannot be optically recognized, search for the car number data containing the same information as the car number information; When the vehicle number position determination unit determines that the vehicle number position determination unit is within the imaging range of the imaging device having an imaging range that overlaps with the imaging range of the imaging device, it is determined whether or not the vehicle number is incapable of performing optical. And the vehicle number position determining unit determines whether the position of the vehicle number included in the vehicle number data is in the image when the integrated data determining unit determines that the vehicle number data is not integrated. Within the imaging range of another camera.