JP7428682B2 - Investigation support system and investigation support method - Google Patents

Description

The present invention relates to an investigation support system and an investigation support method that support investigations into reports of suspicious persons, incidents, accidents, etc.

Traditionally, when a suspicious person, crime, accident, etc. is reported, the person in charge of the investigation goes to the scene, searches for surveillance cameras installed in nearby stores and on the street, and analyzes images from the surveillance cameras. This was used to identify suspicious persons and vehicles involved in incidents and accidents.

However, outdoors, it takes considerable effort to search for surveillance cameras installed around places where a suspicious person has been seen or where an incident or accident has occurred. Surveillance camera images cannot be used to identify suspicious persons or vehicles in areas where surveillance cameras are not being used. Additionally, if a number of days have passed since the report was made, even if a suspicious person or vehicle is captured on a surveillance camera, there is a possibility that the suspicious person or vehicle may have moved far away from the location by the time an investigation begins. This makes it difficult to identify suspicious persons and vehicles.

Here, a facial image of a person attempting to enter a building or room is photographed at a specific location, and if the photographed person's facial image matches a pre-registered facial image, a suspicious person is reported. A system is disclosed in Patent Document 1. Using this technology, it becomes possible to take effective measures against suspicious individuals who repeatedly appear in a specific location.

Japanese Patent Application Publication No. 2003-109129

However, in the technology disclosed in Patent Document 1, a suspicious person is identified using a facial image taken at a specific location, so a suspicious person may be witnessed at a location other than the specific location, Even if an incident or accident occurs, there is a problem in that it is not possible to identify the suspicious person or the vehicle involved in the incident or accident using the captured image.

The present invention was made in view of the problems of the conventional technology as described above, and it prevents suspicious persons from being seen and incidents and accidents occurring even in places where surveillance cameras etc. are not installed. An object of the present invention is to provide an investigation support system and an investigation support method that can make it easier to identify a suspicious person or a vehicle involved in an incident or accident.

In order to achieve the above object, the investigation support system of the present invention includes:
a location information acquisition means for acquiring location information of a communication terminal and a plurality of in-vehicle cameras;
a reception means for receiving a report related to an investigation from the communication terminal;
image acquisition means for acquiring images taken by the plurality of vehicle-mounted cameras;
Based on position information of the communication terminal and the vehicle-mounted camera, a camera that identifies, from among the plurality of vehicle-mounted cameras, a vehicle-mounted camera that is determined based on the position of the communication terminal from which the receiving means has received the report, as a camera for investigation use. specific means,
Image specifying means for specifying an image taken by the investigation use camera as an investigation image from among the images obtained by the image acquisition means;
and image transmitting means for transmitting the investigation image to an investigation terminal.

Furthermore, the investigation support system of the present invention includes:
a location information acquisition means for acquiring location information of a communication terminal and a plurality of in-vehicle cameras;
a reception means for receiving a report related to an investigation from the communication terminal;
Based on position information of the communication terminal and the vehicle-mounted camera, a camera that identifies, from among the plurality of vehicle-mounted cameras, a vehicle-mounted camera that is determined based on the position of the communication terminal from which the receiving means has received the report, as a camera for investigation use. specific means,
image acquisition means for acquiring an image taken by the investigation use camera as an investigation image;
and image transmitting means for transmitting the investigation image to an investigation terminal.

Furthermore, the investigation support method of the present invention includes:
Image acquisition processing that acquires images taken with multiple in-vehicle cameras;
Camera position information acquisition processing that acquires position information of the plurality of in-vehicle cameras;
A reception process for receiving reports related to an investigation from a communication terminal;
Terminal location information acquisition processing for acquiring location information of the communication terminal;
Based on the position information of the communication terminal and the in-vehicle camera, an in-vehicle camera determined based on the position of the communication terminal that received the report in the reception process is identified from among the plurality of in-vehicle cameras as a camera for investigation use. Camera specific processing,
Image identification processing that identifies an image taken by the investigation use camera as an investigation image from among the images obtained in the image acquisition processing;
and an image transmission process of transmitting the investigation image to an investigation terminal.

Furthermore, the investigation support method of the present invention includes:
Camera position information acquisition processing that acquires position information of multiple in-vehicle cameras;
A reception process for receiving reports related to an investigation from a communication terminal;
Terminal location information acquisition processing for acquiring location information of the communication terminal;
Based on the position information of the communication terminal and the in-vehicle camera, an in-vehicle camera determined based on the position of the communication terminal that received the report in the reception process is identified from among the plurality of in-vehicle cameras as a camera for investigation use. Camera specific processing,
an image acquisition process of acquiring an image taken by the investigation use camera as an investigation image;
and an image transmission process of transmitting the investigation image to an investigation terminal.

According to the present invention, even in places where surveillance cameras etc. are not installed, when a suspicious person is witnessed or an incident or accident occurs, the suspicious person and the vehicle involved in the incident or accident can be identified. can be made easier.

1 is a diagram showing a first embodiment of an investigation support system of the present invention. FIG. 2 is a block diagram showing the configuration of the informer terminal shown in FIG. 1. FIG. FIG. 2 is a block diagram showing the configuration of the vehicle-mounted camera shown in FIG. 1. FIG. FIG. 2 is a block diagram showing the configuration of the specific analysis server shown in FIG. 1. FIG. 5 is a flowchart for explaining an investigation support method in the investigation support system shown in FIGS. 1 to 4. FIG. FIG. 2 is a diagram showing a second embodiment of the investigation support system of the present invention. 7 is a block diagram showing the configuration of the location acquisition server shown in FIG. 6. FIG. 7 is a block diagram showing the configuration of the image analysis server shown in FIG. 6. FIG. 8 is a flowchart for explaining an investigation support method in the investigation support system shown in FIGS. 6 and 7. FIG. It is a figure which shows the 3rd embodiment of the investigation support system of this invention. 11 is a block diagram showing the configuration of the location acquisition server shown in FIG. 10. FIG. 11 is a block diagram showing the configuration of the image analysis server shown in FIG. 10. FIG. 13 is a flowchart for explaining an investigation support method in the investigation support system shown in FIGS. 10 to 12. FIG.

Embodiments of the present invention will be described below with reference to the drawings.

(First embodiment)
FIG. 1 is a diagram showing a first embodiment of an investigation support system of the present invention. FIG. 2 is a block diagram showing the configuration of the informer terminal 10 shown in FIG. 1. As shown in FIG. FIG. 3 is a block diagram showing the configuration of the vehicle-mounted cameras 20-1 to 20-n shown in FIG. 1. FIG. 4 is a block diagram showing the configuration of the specific analysis server 50 shown in FIG. 1. As shown in FIG.

In this embodiment, as shown in FIG. Configured to be connectable. Further, the specific analysis server 50 is configured to be able to access a suspicious person database 60.

The informer terminal 10 serves as a communication terminal of the present invention. The informer terminal 10 in this embodiment has a GPS (Global Positioning System) function of a mobile phone, a smartphone, etc., and as shown in FIG. 13, an operation section 14, and an information processing section 15. However, a telephone that does not have a GPS function can also be used as a substitute.

The location acquisition unit 11 acquires location information of the reporter terminal 10 using, for example, a GPS function.

The communication unit 12 is for the informer terminal 10 to exchange information with the reception terminal 30 and the specific analysis server 50 via the communication line 70. For example, a mobile phone or a smart phone may include not only a communication module including an antenna, but also a SIM card that stores an identifier for identifying the caller terminal 10 during communication.

The communication unit 13 is composed of a microphone, a speaker, etc., and inputs the voice transmitted to the reception terminal 30 through a telephone call, and outputs the voice transmitted from the reception terminal 30 through a telephone call and received by the communication unit 12. do.

The operation unit 14 is composed of a touch panel or the like stacked on a display unit (not shown), and is used by the informer to input the telephone number of the reception terminal 30 when making a report to the reception terminal 30.

The information processing unit 15 processes the exchange of information and voice between the position acquisition unit 11 , the communication unit 12 , the communication unit 13 , and the operation unit 14 , and transmits information input or acquired by the informer terminal 10 to the communication unit 12 . It is transmitted to the reception terminal 30 and specific analysis server 50 via the host computer.

The in-vehicle cameras 20-1 to 20-n are, for example, drive recorders with communication functions installed in commercial vehicles (buses, taxis, trucks, police cars, ambulances, fire engines, delivery services, garbage trucks, etc.). The shooting location changes as the vehicle moves. As shown in FIG. 3, the vehicle cameras 20-1 to 20-n include a position acquisition section 21, a photographing section 22, a communication section 23, a storage section 25, and an information processing section 26. Note that the vehicle-mounted cameras 20-1 to 20-n are not limited to automobiles, and may be mounted on bicycles, motorcycles, rear cars, etc.

The position acquisition unit 21 acquires position information of the vehicle cameras 20-1 to 20-n using, for example, a GPS function.

For example, when the vehicle-mounted cameras 20-1 to 20-n are mounted facing forward of the vehicle, the photographing unit 22 photographs the front of the vehicle as a moving image. Note that if the in-vehicle camera is mounted facing not only the front of the vehicle but also the left, right, or rear sides of the vehicle, video images of that direction of the vehicle are captured. The timing at which the video image capturing unit 22 captures the video image may be such that the video image is constantly captured or may be captured only at a specific time when an instruction is received from the specific analysis server 50.

The communication unit 23 sends the position information of the in-vehicle cameras 20-1 to 20-n acquired by the position acquisition unit 21 and the video images photographed by the photography unit 22 to the specific analysis server 50 via the communication line 70. It is for sending. Note that in addition to the communication module including the antenna, a SIM card or the like may be included that stores an identifier for identifying the vehicle cameras 20-1 to 20-n during communication over a mobile phone network. Note that the SIM card and the like may be included in the storage unit 25 instead of the communication unit 23.

The storage unit 25 temporarily stores the moving image photographed by the photographing unit 22 together with the position information acquired by the position acquisition unit 21.

The information processing unit 26 processes the exchange of information such as position information and video images between the position acquisition unit 21, the photographing unit 22, the communication unit 23, and the storage unit 25, and acquires the information by the in-vehicle cameras 20-1 to 20-n. The information is sent to the specific analysis server 50 via the communication unit 23.

The reception terminal 30 serves as a reception means in the present invention, and receives a report related to an investigation from the whistleblower terminal 10. The reception terminal 30 is realized by, for example, a computer running software having a telephone function used in a call center, etc., and equipped with a handset, headset, or other handset used for telephone calls.

The investigation terminal 40 is composed of a mobile terminal owned by an investigator, a communication terminal mounted on an investigation vehicle, etc., and receives the investigation image transmitted from the specific analysis server 50. The investigation terminal 40 is realized by, for example, a mobile phone, a smartphone, or the like. The number of investigation terminals 40 may be one or more.

The specific analysis server 50 acquires the location information of the informant terminal 10 and the vehicle-mounted cameras 20-1 to 20-n via the communication line 70, and also acquires the video images captured by the vehicle-mounted cameras 20-1 to 20-n. is acquired via the communication line 70, and from among the video images taken by the in-vehicle cameras 20-1 to 20-n, an investigation image is identified based on the location information of the informer terminal 10, and the investigation terminal Send to 40. As shown in FIG. 4, the specific analysis server 50 includes a communication unit 51, a caller terminal position acquisition unit 52 and an in-vehicle camera position acquisition unit 53, which are position information acquisition means in the present invention, an image acquisition unit 54, and a camera. It has a specifying section 55, an image specifying section 56, a report information obtaining section 57, an image matching section 58, and an image transmitting section 59. The specific analysis server 50 is realized by, for example, a server computer. The specific analysis server 50 may be composed of a plurality of devices.

The communication unit 51 is for the specific analysis server 50 to exchange information with the informer terminal 10, the vehicle cameras 20-1 to 20-n, the reception terminal 30, and the investigation terminal 40 via the communication line 70. belongs to. The communication unit 51 is realized by, for example, a LAN connector, a communication controller, or the like.

The whistleblower terminal location acquisition unit 52 acquires the location information of the whistleblower terminal 10 transmitted from the whistleblower terminal 10 via the communication unit 51 .

The vehicle-mounted camera position acquisition unit 53 acquires, via the communication unit 51, the position information of the vehicle-mounted cameras 20-1 to 20-n transmitted from the vehicle-mounted cameras 20-1 to 20-n.

The image acquisition section 54 acquires, via the communication section 51, the moving images transmitted from the vehicle-mounted cameras 20-1 to 20-n.

The camera identification unit 55 uses the position information of the caller terminal 10 acquired by the caller terminal position acquisition unit 52 and the position information of the vehicle-mounted cameras 20-1 to 20-n acquired by the vehicle-mounted camera position acquisition unit 53. Based on this, an in-vehicle camera that is determined based on the position of the informer terminal 10 that made the report to the reception terminal 30 is specified as an investigation-use camera from among the in-vehicle cameras 20-1 to 20-n.

The image specifying unit 56 specifies, from among the moving images acquired by the image acquiring unit 54, a moving image taken by the in-vehicle camera that has been identified by the camera identifying unit 55 as a camera for investigation use, as an image for investigation. .

The report information acquisition unit 57 acquires investigation information included in the report received from the informer terminal 10 at the reception terminal 30 via the communication unit 51 .

The image matching unit 58 compares the video image identified by the image identifying unit 56 as an investigative image with the investigative information acquired by the reporting information acquisition unit 57 and the investigative information registered in the suspicious person database 60. Verify.

The image transmitting unit 59 sends a moving image identified as an investigative image by the image identifying unit 56 based on the matching result in the image matching unit 58 to the investigative terminal 40 via the communication unit 51. Send to.

Note that the informer terminal position acquisition section 52, the in-vehicle camera position acquisition section 53, the image acquisition section 54, the camera identification section 55, the image identification section 56, the report information acquisition section 57, the image matching section 58, and the image transmission section 59 are, for example, , is realized by a CPU, memory, executed software, etc. The suspicious person database 60 is realized, for example, by a hard disk device connected to a network, or a server having a hard disk device and running database software.

An investigation support method in the investigation support system configured as described above will be explained below.

FIG. 5 is a flowchart for explaining the investigation support method in the investigation support system shown in FIGS. 1 to 4.

Each of the vehicle-mounted cameras 20-1 to 20-n acquires the position information of the vehicle-mounted cameras 20-1 to 20-n in the position acquisition unit 21, and also acquires the position information of the vehicle-mounted cameras 20-1 to 20-n in the photographing unit 22, for example. When n is mounted facing the front of the vehicle, the front of the vehicle is captured as a video image. Here, if the vehicle-mounted cameras 20-1 to 20-n are mounted facing not only the front of the vehicle but also the rear or left and right sides, the photographing unit 22 photographs the direction of the vehicle as a moving image. Note that it is preferable to store the date and time obtained from a clock section (not shown) in each of the position information and the video image. Further, the moving image may include position information and be stored. In this description, position information and video images will be explained as different information. Then, the position information acquired by the position acquisition section 21 and the moving image photographed by the photographing section 22 are transmitted from the communication section 23 (step 1). At this time, in order to associate the position information acquired by the position acquisition section 21 with the video image photographed by the photographing section 22, this information includes the information of the on-vehicle cameras 20-1 to 20-n. It is conceivable to assign identification information such as a camera ID to each of them.

The position information and video images transmitted from the on-vehicle cameras 20-1 to 20-n are received by the communication unit 51 of the specific analysis server 50 via the communication line 70, and then transmitted from the on-vehicle cameras 20-1 to 20-n. The on-vehicle camera position acquisition section 53 acquires the position information, and the image acquisition section 54 acquires the video images transmitted from the on-vehicle cameras 20-1 to 20-n (Step 2). Note that the position information and video images from the vehicle-mounted cameras 20-1 to 20-n may be sent to the specific analysis server 50 all the time or at predetermined intervals. Furthermore, it may be performed when the vehicle cameras 20-1 to 20-n receive a transmission instruction transmitted from the specific analysis server 50 at a predetermined timing. The transmission instruction may be sent by the specific analysis server 50 to the in-vehicle cameras 20-1 to 20-n when, for example, there is a report from the informer terminal 10 to the reception terminal 30 that a suspicious person has been witnessed, which will be described later. It will be done. When transmitting location information and video images at predetermined time intervals or according to a transmission instruction, the on-vehicle cameras 20-1 to 20-n transmit the video images shot by the imaging unit 22 to the position acquisition unit 21. The video is temporarily stored in the storage unit 25 together with the acquired position information, and when the clock unit indicates a predetermined time or a transmission instruction is received from the specific analysis server 50, the video stored in the storage unit 25 The image will be sent to the specific analysis server 50 along with the position information. It is preferable to delete the transmitted moving image and position information in the storage unit 25. In addition, when transmitting location information and video images based on a transmission instruction, video images and location information for a predetermined period of time (e.g. 24 hours) are stored in the storage unit 25, and previous video images and location information are stored in the storage unit 25. may be deleted. Note that the transmission of video images to the specific analysis server 50 can be stopped by sending a transmission stop instruction from the specific analysis server 50 to the on-vehicle cameras 20-1 to 20-n at a timing such as when a suspicious person is secured. It may also be done. In this way, the in-vehicle cameras 20-1 to 20-n transmit the position information acquired by the position acquisition section 21 and the video images photographed by the photographing section 22 at all times or at predetermined intervals. Furthermore, it is transmitted to the specific analysis server 50 at the timing when the transmission instruction sent from the specific analysis server 50 is received.

In such a state, if the user of the reception terminal 30 witnesses a suspicious person or suspicious vehicle (hereinafter referred to as a suspicious person), the informer terminal 10 will contact the reception terminal 30 in response to the user's operation. When the operator of the reception terminal 30 makes a call and connects (reports) (step 3), the operator of the reception terminal 30 listens to information for investigation that can be used to identify the suspicious person who is the object of operation. , transmits the voice input via the telephone call unit 13 to the reception terminal 30, and transmits the position information acquired by the position acquisition unit 11 to the specific analysis server 50 together with the report. For example, if the reception terminal 30 is a telephone in a security company or police station, the location information of the informer terminal 10 is transmitted by acquiring it at the telephone exchange of the security company or police station, and transmitting the location information to the specific analysis server 50. It is conceivable to provide the information to the terminal position acquisition unit 52. In addition, if the caller terminal 10 is a regular telephone that does not have the location acquisition unit 11, the location of the caller terminal 10 can be determined to some extent from the area number of the caller terminal 10 in the telephone exchange, so this grasped position It is conceivable to provide the information to the reporter terminal location acquisition unit 52 of the specific analysis server 50 as the location information of the reporter terminal 10. In addition, when the reception terminal 30 is a computer, it transmits a request to obtain location information to the reporter terminal 10 and provides the location information received from the reporter terminal 10 to the reporter terminal location acquisition unit 52 of the specific analysis server 50. You can.

In this manner, the informer terminal location acquisition unit 52 of the specific analysis server 50 acquires the location information of the informer terminal 10 that has notified the reception terminal 30 that it has witnessed a suspicious person (step 4).

In addition, the specific analysis server 50 uses the report information acquisition unit 57 to acquire investigation information included in the audio transmitted from the informer terminal 10 to the reception terminal 30 from the reception terminal 30 via the communication line 70 (step 5). This investigation information may be based on the voice transmitted from the informer terminal 10 to the reception terminal 30 at the time of reporting, or may be input into the keyboard by the operator of the reception terminal 30 or executed at the reception terminal 30. The voice may be converted into text information using voice recognition software.

Then, in the specific analysis server 50, the camera identification unit 55 first uses the location information of the caller terminal 10 acquired by the caller terminal position acquisition unit 52 and the in-vehicle camera acquired by the in-vehicle camera position acquisition unit 53. Based on the location information of 20-1 to 20-n, one of the in-vehicle cameras 20-1 to 20-n is determined based on the position of the informer terminal 10 that made the report to the reception terminal 30. It is identified as a camera for investigation use (step 6). For example, among the vehicle-mounted cameras 20-1 to 20-n, the reception terminal 30 may identify the vehicle-mounted camera that is located closest to the informer terminal 10 that received the report as the investigation-use camera. Among 20-1 to 20-n, it is also possible to identify vehicle-mounted cameras that exist within a predetermined range, such as a 500 m radius around the location of the informer terminal 10 from which the reception terminal 30 received the report, as cameras for investigation use. . In that case, since the suspicious person reported by the informer terminal 10 is likely to have moved far away from the place where he was seen as time passes since the report, the camera identification unit 55 identifies the camera as a camera for investigation use. It is conceivable to expand the predetermined range with the passage of time after the reception terminal 30 receives the report, and to specify in-vehicle cameras existing in the expanded range at that time as cameras for investigation use. With such a configuration, even if the suspicious person reported by the whistleblower terminal 10 moves over time after the report, it is possible to identify the in-vehicle camera that may have captured the suspicious person. . Note that the predetermined range specified as the camera for investigation use may be expanded in the direction of movement of the suspicious person reported by the informer terminal 10, or the radius centered on the position of the informer terminal 10 may be expanded. . Further, the speed at which the predetermined range is widened may be changed depending on whether the suspect is a suspicious person or a suspicious vehicle, based on a report from the informer terminal 10.

Furthermore, the camera identification unit 55 predicts the positions after the vehicle-mounted cameras 20-1 to 20-n have moved (hereinafter referred to as "movement positions"), and predicts the positions of the informer terminal 10 and the vehicle-mounted cameras 20-1 to 20-n. , and the predicted positions of the in-vehicle cameras 20-1 to 20-n after movement, at least one of the in-vehicle cameras 20-1 to 20-n is identified as a camera for investigation use. Good too. In that case, the camera specifying unit 55 determines whether the vehicle cameras 20-1 to 20-n are connected based on the changes in the position information of the vehicle cameras 20-1 to 20-n acquired from the vehicle cameras 20-1 to 20-n. It is conceivable to judge the moving direction and speed of -n and predict the moving position of the vehicle-mounted cameras 20-1 to 20-n after a period of time has elapsed since the notification. Note that in this case, date and time information is recorded in advance when recording position information. Furthermore, the above-mentioned identification within a predetermined range and identification based on prediction of the movement position may be combined. In this case, the predetermined range specified as a camera for investigation use is also expanded as time passes from the time of the report. If the predicted movement positions of the in-vehicle cameras 20-1 to 20-n after a predetermined time are predicted to fall within a predetermined range specified as cameras for investigation, the in-vehicle cameras 20-1 to 20-n are investigated. It may also be specified as a camera to be used. Further, when the positions of the vehicle-mounted cameras 20-1 to 20-n are outside the predetermined range specified as cameras for investigation use, the vehicle-mounted cameras 20-1 to 20-n may be excluded from the cameras for investigation use. In this way, it is conceivable to change the identified investigation use camera based on whether the predicted movement position is within a predetermined range or outside the predetermined range, depending on the time that has passed since the report. In addition, if the in-vehicle cameras 20-1 to 20-n are installed in a vehicle such as a courier whose planned travel route can be predicted in advance, the camera can identify, for example, the delivery route for a courier, the collection route for a garbage truck, etc. The delivery route may be registered in advance in the section 55, and the movement position of the vehicle-mounted cameras 20-1 to 20-n may be predicted to change with the passage of time after the notification by using this delivery route or the like as the planned movement route. In this way, by predicting the movement positions of the vehicle-mounted cameras 20-1 to 20-n and identifying them as cameras for investigation based on that, even if the vehicle equipped with the vehicle-mounted cameras 20-1 to 20-n moves, It is possible to identify in-vehicle cameras that may be showing suspicious persons. Furthermore, even if the suspicious person reported by the informer terminal 10 moves over time after the report, the suspicious person can be In-vehicle cameras that are predicted to be present in the direction of movement can be identified. Note that the number of vehicle-mounted cameras specified as cameras for investigation use is not limited to one.

Next, the image specifying unit 56 selects a moving image captured by the in-vehicle camera that has been identified by the camera identifying unit 55 as a camera for investigation from among the moving images acquired by the image acquiring unit 54 as an investigative image. (Step 7). At this time, as described above, the position information of the on-board cameras 20-1 to 20-n and the video images taken by the on-board cameras 20-1 to 20-n include the on-board cameras 20-1 to 20-n. Since identification information such as a camera ID is assigned to each of n, the in-vehicle camera is identified by the camera identification unit 55 as a camera for investigation use from among the video images acquired by the image acquisition unit 54. By extracting the video images that have been given the same identification information as the identification information of , it is possible to identify the video images taken with the investigation camera. Note that if there are multiple cameras used for investigation, there will also be multiple video images.

Next, in the image matching unit 58, the video image identified by the image specifying unit 56 as an investigative image, the investigative information acquired by the reporting information acquisition unit 57, and the investigative image registered in the suspicious person database 60 are combined. The information is verified (step 8). As described above, the report information acquisition unit 57 has acquired investigation information based on the hearing when the report was sent from the whistleblower terminal 10 to the reception terminal 30. Therefore, the image matching unit 58 It is checked whether a suspicious person or the like corresponding to the investigation information acquired by the report information acquisition unit 57 is included in the video image specified as the investigation image. For example, if investigative information such as "black balaclava" and "black backpack" is obtained through the hearing when reporting from the informer terminal 10 to the reception terminal 30, the image specifying unit 56 generates an investigative image. The system checks whether a person wearing a black balaclava and carrying a black backpack appears in the identified video images. In addition, since the suspicious person database 60 has registered facial images and characteristic information of people who have been arrested as suspicious persons in the past, the image matching unit 58 can identify images identified as investigation images by the image identifying unit 56. It may be checked whether a suspicious person or the like corresponding to the information registered in the suspicious person database 60 is shown in the video image. Furthermore, the date and time when the report was sent from the informer terminal 10 to the reception terminal 30 may be used to narrow down the portion of the video image to be compared from among the investigation images. Note that in this case, date and time information is recorded in advance when recording the moving image. Note that the matching in the image matching section 58 may be performed using general condition matching or image matching technology. Additionally, multiple scenes may be compared from among the investigation images.

Thereafter, the image transmitting unit 59 selects the investigative information acquired by the report information acquiring unit 57 and the investigative images registered in the suspicious person database 60 from among the video images identified by the image specifying unit 56 as investigative images. A video image showing the suspicious person identified by the information is transmitted as a video image to the investigation terminal 40 via the communication unit 51 together with the position information of the vehicle camera that captured the video image (step 9). At that time, instead of transmitting the entire video image, the image transmitter 59 may cut out a scene or snapshot of the suspicious person from the video image and transmit it as a part of the video image or still image. good. Note that all of the video images identified as investigation images by the image identification unit 56 may be transmitted from the image transmission unit 59; however, among the video images identified as investigation images by the image identification unit 56, A video image or a still image showing a suspicious person identified by the investigative information acquired by the information acquisition unit 57 or the investigative information registered in the suspicious person database 60 is cut out and transmitted from the image transmitting unit 59. This makes it easier for investigators to identify suspicious individuals. Note that a plurality of moving images or still images may be transmitted.

The video image transmitted from the image transmitter 59 is received by the investigation terminal 40 via the communication line 70, and the investigator conducts an investigation using the video image received by the investigation terminal 40.

In this way, in this embodiment, when there is a report that a suspicious person has been sighted using the in-vehicle cameras 20-1 to 20-n, one of the in-vehicle cameras 20-1 to 20-n that made the report Since the configuration is such that images taken by an in-vehicle camera determined based on the location of the informant terminal 10 are acquired in real time and sent to the investigation terminal 40, suspicious persons can be detected even in locations where surveillance cameras etc. are not installed. This makes it easier to identify a suspicious person if a suspicious person is witnessed. In addition, not only when a suspicious person is witnessed, but also when an incident or accident occurs, images taken by the in-vehicle camera, which is determined based on the location of the caller terminal 10 that reported the incident or accident, are displayed in real time. By acquiring the information and transmitting it to the investigation terminal 40, when an incident or accident occurs, it becomes easier to identify the vehicle, etc. involved in the incident or accident, even in places where surveillance cameras etc. are not installed. Can be done.

Note that the video images acquired by the image acquisition unit 54 from the in-vehicle cameras 20-1 to 20-n are registered in the database and used in the series of processes described above. Since most of the video images taken at n are unrelated to the investigation of suspicious persons, incidents, and accidents, it is preferable to delete them from the database after a certain period of time has passed. With such a configuration, images that are not particularly necessary for the investigation among the images taken by the in-vehicle cameras 20-1 to 20-n are not retained in the specific analysis server 50 forever, and the in-vehicle cameras 20-n -1 to 20-n, it is possible to avoid unnecessarily invading the privacy of the person appearing in the image taken.

(Second embodiment)
FIG. 6 is a diagram showing a second embodiment of the investigation support system of the present invention. FIG. 7 is a block diagram showing the configuration of the location acquisition server 80 shown in FIG. 6. FIG. 8 is a block diagram showing the configuration of the image analysis server 90 shown in FIG. 6.

As shown in FIG. 6, this embodiment differs from the one shown in FIG. They differ in that they have 1 to 40-N. Note that descriptions similar to those in the first embodiment may be omitted.

The position acquisition server 80 acquires the position information of the informer terminal 10 and the investigation terminals 40-1 to 40-N via the communication line 70, and transfers this information to the image analysis server 90 via the communication line 70. As shown in FIG. 7, the location acquisition server 80 includes a communication unit 81, a caller terminal location acquisition unit 82, a caller terminal location transfer unit 83, an investigation terminal location acquisition unit 84, and an investigation terminal location transfer unit 83. 85. The position acquisition server 80 is realized by, for example, a personal computer, a server computer, or the like. Further, the position acquisition server 80 may be configured as a part of other devices such as the reception terminal 30 or a switching equipment.

The communication unit 81 exchanges information between the location acquisition server 80, the informer terminal 10, the reception terminal 30, the investigation terminals 40-1 to 40-N, and the image analysis server 90 via the communication line 70. It is for. The communication unit 81 is realized by, for example, a LAN connector, a communication controller, or the like.

The whistleblower terminal location acquisition unit 82 acquires the location information of the whistleblower terminal 10 transmitted from the whistleblower terminal 10 via the communication unit 81 .

The reporter terminal location transfer unit 83 transfers the location information of the reporter terminal 10 acquired by the reporter terminal location acquisition unit 82 to the image analysis server 90 via the communication unit 81.

The investigation terminal location acquisition section 84 obtains, via the communication section 81, the location information of the investigation terminals 40-1 to 40-N transmitted from the investigation terminals 40-1 to 40-N.

The investigation terminal position transfer unit 85 transmits the position information of the investigation terminals 40-1 to 40-N acquired by the investigation terminal position acquisition unit 84 to the image analysis server 90 via the communication unit 81.

Note that the informer terminal location acquisition unit 82, the informer terminal location transfer unit 83, the investigation terminal location acquisition unit 84, and the investigation terminal location transfer unit 85 are realized by, for example, a CPU, memory, executed software, etc. .

The image analysis server 90 acquires the position information of the informer terminal 10 and the investigation terminals 40-1 to 40-N from the position acquisition server 80, and also acquires the video images taken by the vehicle-mounted cameras 20-1 to 20-n. is acquired via the communication line 70 together with the location information of the vehicle-mounted cameras 20-1 to 20-n, and the location information of the informer terminal 10 is obtained from the video images taken by the vehicle-mounted cameras 20-1 to 20-n. The investigation image is specified based on the location information of the informer terminal 10, and transmitted to the investigation terminals 40-1 to 40-N specified based on the location information of the informer terminal 10. As shown in FIG. 8, the image analysis server 90 includes a communication section 91, a whistleblower terminal position acquisition section 92, which serves as a location information acquisition means in the present invention, an in-vehicle camera position acquisition section 93, and an investigation terminal position acquisition section 101. , an image acquisition section 94, a camera identification section 95, an image identification section 96, a report information acquisition section 97, an image matching section 98, an image transmission section 99, and an investigation terminal identification section 102. . The image analysis server 90 is realized by, for example, a server computer. Image analysis server 90 may be composed of multiple devices.

The communication unit 91 communicates between the image analysis server 90 and the in-vehicle cameras 20-1 to 20-n, the reception terminal 30, the investigation terminals 40-1 to 40-N, and the position acquisition server 80 via the communication line 70. It is used to exchange information. The communication unit 51 is realized by, for example, a LAN connector, a communication controller, or the like.

The reporter terminal location acquisition unit 92 acquires the location information of the reporter terminal 10 transmitted from the location acquisition server 80 via the communication unit 91 .

The investigation terminal location acquisition section 101 obtains the location information of the investigation terminals 40-1 to 40-N transmitted from the location acquisition server 80 via the communication section 91.

The vehicle-mounted camera position acquisition unit 93 acquires, via the communication unit 91, the position information of the vehicle-mounted cameras 20-1 to 20-n transmitted from the vehicle-mounted cameras 20-1 to 20-n.

The image acquisition unit 94 acquires video images transmitted from the vehicle cameras 20-1 to 20-n via the communication unit 91.

The camera identification unit 95 uses the position information of the caller terminal 10 acquired by the caller terminal position acquisition unit 92 and the position information of the vehicle-mounted cameras 20-1 to 20-n acquired by the vehicle-mounted camera position acquisition unit 93. Based on this, an in-vehicle camera that is determined based on the position of the informer terminal 10 that made the report to the reception terminal 30 is specified as an investigation-use camera from among the in-vehicle cameras 20-1 to 20-n.

The image specifying section 96 specifies, from among the moving images acquired by the image acquiring section 94, a moving image taken by the in-vehicle camera that is specified by the camera specifying section 95 as a camera for investigation use, as an image for investigation. .

The report information acquisition unit 97 acquires investigation information included in the report received from the informer terminal 10 at the reception terminal 30 via the communication unit 91 .

The image matching unit 98 compares the video image identified by the image identifying unit 96 as an investigative image with the investigative information acquired by the reporting information acquisition unit 97 and the investigative information registered in the suspicious person database 60. Verify.

The investigation terminal identification unit 102 uses the location information of the informer terminal 10 acquired by the informer terminal location acquisition unit 92 and the investigation terminals 40-1 to 40-N acquired by the investigation terminal location acquisition unit 101. The investigation terminal that transmits the investigation image is specified based on the location information of the investigation terminal.

The image transmitting unit 99 transmits a moving image identified as an investigation image by the image identifying unit 96 based on the matching result in the image matching unit 98 to the investigating terminals 40-1 to 40-. It is transmitted to the investigation terminal specified by the investigation terminal identification section 102 among the investigation terminals N through the communication section 91.

Note that the informer terminal position acquisition unit 92, the investigation terminal position acquisition unit 101, the in-vehicle camera position acquisition unit 93, the image acquisition unit 94, the camera identification unit 95, the image identification unit 96, the report information acquisition unit 97, and the image matching unit 98 , the investigation terminal identifying unit 102 and the image transmitting unit 99 are realized by, for example, a CPU, memory, executed software, and the like.

An investigation support method in the investigation support system configured as described above will be explained below.

FIG. 9 is a flowchart for explaining the investigation support method in the investigation support system shown in FIGS. 6 to 7.

Each of the vehicle-mounted cameras 20-1 to 20-n acquires the position information of the vehicle-mounted cameras 20-1 to 20-n in the position acquisition unit 21, and also acquires the position information of the vehicle-mounted cameras 20-1 to 20-n in the photographing unit 22, for example. When n is mounted toward the front of the vehicle, the front of the vehicle is captured as a video image. Then, the position information acquired by the position acquisition section 21 and the moving image photographed by the photographing section 22 are transmitted from the communication section 23 (step 11). At this time, in order to associate the position information acquired by the position acquisition section 21 with the video image photographed by the photographing section 22, this information includes the information of the on-vehicle cameras 20-1 to 20-n. It is conceivable to assign identification information such as a camera ID to each of them.

The position information and video images transmitted from the on-vehicle cameras 20-1 to 20-n are received by the communication unit 91 of the image analysis server 90 via the communication line 70, and then transmitted from the on-vehicle cameras 20-1 to 20-n. The on-vehicle camera position acquisition section 93 acquires the position information, and the image acquisition section 94 acquires the video images transmitted from the on-vehicle cameras 20-1 to 20-n (step 12). Note that the transmission of position information and video images from the on-vehicle cameras 20-1 to 20-n to the image analysis server 90 is based on specific analysis from the on-vehicle cameras 20-1 to 20-n shown in the first embodiment. Similar to the transmission to the server 50, the information may be sent all the time or at predetermined intervals. Furthermore, it may be performed when the on-vehicle cameras 20-1 to 20-n receive a transmission instruction transmitted from the image analysis server 90 at a predetermined timing.

In such a state, when the informer terminal 10 reports that a suspicious person has been witnessed to the reception terminal 30 (step 13), the informer terminal 10 allows the operator of the reception terminal 30 to identify the suspicious person. By hearing the available investigation information, the voice input through the communication unit 13 is transmitted to the reception terminal 30, and the position information acquired by the position acquisition unit 11 is transmitted together with the report to the position acquisition server 80. do. Transmission of location information from the reporter terminal 10 to the location acquisition server 80 may be performed in the same manner as the transmission from the reporter terminal 10 to the specific analysis server 50 shown in the first embodiment.

Further, the investigation terminals 40-1 to 40-N acquire position information of their own investigation terminals 40-1 to 40-N, and transmit the information to the location acquisition server 80. An investigation terminal location acquisition unit 84 of the location acquisition server 80 acquires location information of the investigation terminals 40-1 to 40-N via the communication line 70. Then, the investigation terminal location transfer unit 85 transfers the location information of the investigation terminals 40-1 to 40-N to the image analysis server 90, so that the investigation terminal location acquisition unit 101 of the image analysis server 90 can perform the investigation. The location information of the terminals 40-1 to 40-N is acquired via the communication unit 91. The location information of the investigation terminals 40-1 to 40-N is always transmitted from the investigation terminals 40-1 to 40-N to the location acquisition server 80 or from the location acquisition server 80 to the image analysis server 90. It may be performed at predetermined time intervals, or it may be performed when the position acquisition server 80 receives a transmission instruction transmitted from the image analysis server 90. The transmission instruction sent from the image analysis server 90 to the position acquisition server 80 is, for example, a video showing a suspicious person from among the investigation terminals 40-1 to 40-N, in the investigation terminal identification unit 102, which will be described later. When specifying an investigation terminal to which an image is to be transmitted, it is conceivable that the image analysis server 90 transmits the image to the position acquisition server 80, and the position acquisition server 80 further transmits the image to the investigation terminals 40-1 to 40-N.

When the informer terminal location acquisition unit 82 of the location acquisition server 80 acquires the location information of the informer terminal 10 that has reported to the reception terminal 30 that it witnessed a suspicious person (step 14), the informer terminal of the location acquisition server 80 The terminal location transfer unit 83 transfers the location information of the reporter terminal 10 acquired by the reporter terminal location acquisition unit 82 to the image analysis server 90 via the communication unit 81 (step 15).

Then, the caller terminal position acquisition unit 92 of the image analysis server 90 acquires the location information of the caller terminal 10 transferred from the caller terminal location transfer unit 83 of the location acquisition server 80 via the communication unit 91 (step 16 ).

In addition, the image analysis server 90 uses the report information acquisition unit 97 to acquire investigation information included in the audio transmitted from the informer terminal 10 to the reception terminal 30 from the reception terminal 30 via the communication line 70 (step 17). This investigation information may be based on the voice transmitted from the informer terminal 10 to the reception terminal 30 at the time of reporting, or may be input into the keyboard by the operator of the reception terminal 30 or executed at the reception terminal 30. The voice may be converted into text information using voice recognition software.

Then, in the image analysis server 90, the camera identification unit 95 first uses the location information of the caller terminal 10 acquired by the caller terminal position acquisition unit 92 and the in-vehicle camera acquired by the in-vehicle camera position acquisition unit 93. Based on the location information of 20-1 to 20-n, one of the in-vehicle cameras 20-1 to 20-n is determined based on the position of the informer terminal 10 that made the report to the reception terminal 30. It is specified as a camera for investigation use (step 18). It is conceivable that the identification of the investigation use camera is performed in the same manner as the operation of the identification analysis server 50 shown in the first embodiment, for example.

Next, the image specifying unit 96 selects a moving image captured by the in-vehicle camera that has been identified by the camera identifying unit 95 as a camera for investigation from among the moving images acquired by the image acquiring unit 94 as an investigative image. (Step 19). At this time, as described above, the position information of the on-board cameras 20-1 to 20-n and the video images taken by the on-board cameras 20-1 to 20-n include the on-board cameras 20-1 to 20-n. Since identification information, such as a camera ID, is given to each of It is possible to specify a video image taken by an in-vehicle camera specified as a camera.

Next, in the image matching section 98, the video image identified as the investigation image by the image specifying section 96, the investigation information acquired by the report information acquisition section 97, and the investigation image registered in the suspicious person database 60 are combined. The information is verified (step 20). These comparisons may be performed in the same manner as the operation of the specific analysis server 50 shown in the first embodiment.

Next, the investigative terminal identifying unit 102 uses the location information of the informer terminal 10 acquired by the informer terminal location acquiring unit 92 and the investigative terminals 40-1 to 40-1 acquired by the investigative terminal location acquiring unit 101. 40-N, from among the investigation terminals 40-1 to 40-N, an investigation terminal that exists within a predetermined range based on the location of the informer terminal 10 that made the report to the reception terminal 30. Identify the terminal (step 21). The method of specifying the investigation terminal based on the location of the whistleblower terminal 10 is that in the first embodiment, the specific analysis server 50 investigates the in-vehicle camera determined based on the location of the whistleblower terminal 10. It is conceivable to do this as shown in the explanation for specifying the camera to be used. Furthermore, instead of using the position of the informer terminal 10 as a reference, the position of the in-vehicle camera specified by the camera identification unit 95 as a camera for investigation use may be used as a reference.

Thereafter, in the image transmitting unit 99, among the video images identified by the image specifying unit 96 as investigation images, the investigative information acquired by the reporting information acquisition unit 97 and the investigative information registered in the suspicious person database 60 are sent to the image transmitting unit 99. The communication unit sends a video image showing the suspicious person identified by the information, together with the location information of the vehicle camera that captured the video image, to the investigation terminal identified by the investigation terminal identification unit 102 as a video image. 91 (step 22).

The video image transmitted from the image transmission unit 99 is received via the communication line 70 by the investigation terminal specified by the investigation terminal identification unit 102, and the investigator receives the video information received by the investigation terminal. will be used to conduct the investigation.

In this way, in this embodiment as well, when there is a report that a suspicious person has been sighted using the in-vehicle cameras 20-1 to 20-n, one of the in-vehicle cameras 20-1 to 20-n that made the report Since the configuration is such that images taken by an in-vehicle camera determined based on the location of the informant terminal 10 are acquired in real time and sent to the investigation terminals 40-1 to 40-N, no surveillance cameras are installed. Even if a suspicious person is seen at a certain location, it can be made easier to identify the suspicious person. In addition, not only when a suspicious person is witnessed, but also when an incident or accident occurs, images taken by the in-vehicle camera, which is determined based on the location of the caller terminal 10 that reported the incident or accident, are displayed in real time. By acquiring the data and sending it to investigation terminals 40-1 to 40-N, if an incident or accident occurs, even in places where surveillance cameras are not installed, people and vehicles involved in the incident or accident can be tracked. etc. can be easily identified.

Furthermore, in this embodiment, among the plurality of investigation terminals 40-1 to 40-N, investigation terminals existing within a predetermined range around the location of the informer terminal 10 that made the report to the reception terminal 30 are selected. This configuration allows investigators in the vicinity of a place where a suspicious person is seen or an incident or accident has occurred to immediately begin an investigation. etc. becomes easier to discover.

(Third embodiment)
FIG. 10 is a diagram showing a third embodiment of the investigation support system of the present invention. FIG. 11 is a block diagram showing the configuration of the location acquisition server 180 shown in FIG. 10. FIG. 12 is a block diagram showing the configuration of image analysis server 190 shown in FIG. 10. Note that descriptions similar to those in the first embodiment and the second embodiment may be omitted.

As shown in FIG. 10, this embodiment is different from that shown in FIG. 6 in the configurations of a position acquisition server 180 and an image analysis server 190. Further, although there is one investigation terminal 40 as in the first embodiment, there may be a plurality of investigation terminals 40 as in the second embodiment.

The location acquisition server 180 acquires the location information of the caller terminal 10 and the vehicle-mounted cameras 20-1 to 20-n via the communication line 70, and acquires the location information of the caller terminal 10 and the vehicle-mounted cameras 20-1 to 20-n. Based on this, the camera for investigation use is specified from among the vehicle-mounted cameras 20-1 to 20-n, and the identified camera for investigation use is instructed to transmit the captured image to the image analysis server 190. As shown in FIG. 11, the position acquisition server 180 includes a communication unit 181, a caller terminal position acquisition unit 182 and an in-vehicle camera position acquisition unit 183, which serve as position information acquisition means in the present invention, a camera identification unit 184, and an image and a transmission instruction section 185. The position acquisition server 180 is realized by, for example, a personal computer, a server computer, or the like. Further, the location acquisition server 180 may be configured as a part of a device such as the reception terminal 30 or a switching equipment.

The communication unit 181 allows the location acquisition server 180 to communicate with the informer terminal 10, the vehicle-mounted cameras 20-1 to 20-n, the reception terminal 30, the investigation terminal 40, and the image analysis server 190 via the communication line 70. It is for exchanging information. The communication unit 181 is realized by, for example, a LAN connector, a communication controller, or the like.

The whistleblower terminal location acquisition unit 182 acquires the location information of the whistleblower terminal 10 transmitted from the whistleblower terminal 10 via the communication unit 181 .

The vehicle-mounted camera position acquisition unit 183 acquires, via the communication unit 181, the position information of the vehicle-mounted cameras 20-1 to 20-n transmitted from the vehicle-mounted cameras 20-1 to 20-n.

The camera identification unit 184 uses the position information of the caller terminal 10 acquired by the caller terminal position acquisition unit 182 and the position information of the vehicle-mounted cameras 20-1 to 20-n acquired by the vehicle-mounted camera position acquisition unit 183. Based on this, an in-vehicle camera that is determined based on the position of the informer terminal 10 that made the report to the reception terminal 30 is specified as an investigation-use camera from among the in-vehicle cameras 20-1 to 20-n.

The image transmission instruction unit 185 sends an image transmission instruction to the communication unit 191 to instruct the in-vehicle camera identified by the camera identification unit 184 as a camera for investigation to transmit the captured image to the image analysis server 190. Send via.

Note that the informer terminal position acquisition unit 182, the in-vehicle camera position acquisition unit 183, the camera identification unit 184, and the image transmission instruction unit 185 are realized by, for example, a CPU, memory, executed software, and the like.

The image analysis server 190 sends a video image taken by an in-vehicle camera that has been identified by the location acquisition server 180 as a camera for investigation among the in-vehicle cameras 20-1 to 20-n to a communication line along with the location information of the in-vehicle camera. 70 and transmits the acquired video image to the investigation terminal 40. As shown in FIG. 12, the image analysis server 190 includes a communication section 191, an image acquisition section 192, a report information acquisition section 193, an image comparison section 194, and an image transmission section 195. The image analysis server 190 is realized by, for example, a personal computer, a server computer, or the like. Further, the image analysis server 190 may be configured as a part of a device such as the reception terminal 30 or a switchboard.

The communication unit 191 is for the image analysis server 190 to exchange information with the vehicle cameras 20-1 to 20-n, the reception terminal 30, and the investigation terminal 40 via the communication line 70. The communication unit 181 is realized by, for example, a LAN connector, a communication controller, or the like.

The image acquisition unit 192 sends a video image taken by an in-vehicle camera that is identified by the location acquisition server 180 as an investigation use camera from among the in-vehicle cameras 20-1 to 20-n to a communication unit along with the position information of the in-vehicle camera. 191.

The report information acquisition unit 193 acquires, via the communication unit 191, investigation information included in the report received from the informer terminal 10 at the reception terminal 30.

The image matching section 194 matches the moving image obtained by the image obtaining section 192 with the investigation information obtained by the report information obtaining section 193 and the investigation information registered in the suspicious person database 60.

The image transmitting section 195 transmits, among the moving images acquired by the image acquiring section 192 , the moving image identified based on the matching result in the image matching section 194 to the investigation terminal 40 via the communication section 191 .

Note that the image acquisition section 192, the report information acquisition section 193, the image matching section 194, and the image transmission section 195 are realized by, for example, a CPU, a memory, and executed software.

An investigation support method in the investigation support system configured as described above will be explained below.

FIG. 13 is a flowchart for explaining the investigation support method in the investigation support system shown in FIGS. 10 to 12.

Each of the vehicle-mounted cameras 20-1 to 20-n acquires the position information of the vehicle-mounted cameras 20-1 to 20-n in the position acquisition unit 21, and also acquires the position information of the vehicle-mounted cameras 20-1 to 20-n in the photographing unit 22, for example. When n is mounted facing the front of the vehicle, the front of the vehicle is captured as a video image. Then, the position information acquired by the position acquisition unit 21 is transmitted from the communication unit 23 (step 31). At this time, it is conceivable to add identification information such as a camera ID given to each of the vehicle-mounted cameras 20-1 to 20-n to the position information acquired by the position acquisition unit 21.

The position information transmitted from the vehicle-mounted cameras 20-1 to 20-n is received by the communication unit 181 of the position acquisition server 180 via the communication line 70, and is acquired by the vehicle-mounted camera position acquisition unit 183 (step 32). Note that the transmission of position information from the vehicle-mounted cameras 20-1 to 20-n to the location acquisition server 180 is performed from the vehicle-mounted cameras 20-1 to 20-n shown in the first embodiment to the specific analysis server 50. Similarly to the transmission of position information, it may be performed all the time or at predetermined intervals, or the transmission instruction sent from the position acquisition server 180 at a predetermined timing may be sent to the in-vehicle cameras 20-1 to 20-20. -n may be received.

In such a state, if the informer terminal 10 reports that a suspicious person has been sighted to the reception terminal 30 (step 33), the informer terminal 10 allows the operator of the reception terminal 30 to identify the suspicious person. By hearing the available investigation information, the voice input through the communication unit 13 is transmitted to the reception terminal 30, and the position information acquired by the position acquisition unit 11 is transmitted together with the report to the position acquisition server 180. do. It is conceivable that the location information is transmitted from the informer terminal 10 to the location acquisition server 180 in the same way as the transmission from the reception terminal 10 to the specific analysis server 50 shown in the first embodiment.

When the informer terminal location acquisition unit 182 of the location acquisition server 180 acquires the location information of the informer terminal 10 that reported to the reception terminal 30 that it witnessed a suspicious person (step 34), the camera identification of the location acquisition server 180 is performed. Based on the position information of the caller terminal 10 acquired by the caller terminal position acquisition unit 182 and the position information of the vehicle-mounted cameras 20-1 to 20-n acquired by the vehicle-mounted camera position acquisition unit 183, the Then, from among the in-vehicle cameras 20-1 to 20-n, the in-vehicle camera determined based on the position of the informer terminal 10 that made the report to the reception terminal 30 is specified as a camera for investigation use (step 35). It is conceivable that the location acquisition server 180 specifies the camera used for investigation, for example, in the same manner as the specific analysis server 50 shown in the first embodiment.

Next, the image transmission instructing unit 185 of the position acquisition server 180 instructs the in-vehicle camera identified by the camera identifying unit 184 as a camera for investigation use to transmit the captured image to the image analysis server 190. An image transmission instruction is transmitted via the communication unit 191 (step 36). The image transmission instruction unit 185 manages destination information such as addresses of the in-vehicle cameras 20-1 to 20-n in association with identification information such as camera IDs assigned to each of the in-vehicle cameras 20-1 to 20-n. By recognizing the destination information of the in-vehicle camera based on identification information such as camera ID given to the location information sent from the in-vehicle cameras 20-1 to 20-n, images are sent to the corresponding in-vehicle camera. Instructions can be sent.

When the image transmission instruction transmitted from the position acquisition server 180 is received by the in-vehicle camera specified as the investigation use camera (step 37), the in-vehicle camera that received the image transmission instruction uses the photographing unit 22 to take the image. The moving image is transmitted together with the position information of the in-vehicle camera via the communication unit 23 (step 38).

The video image transmitted from the corresponding vehicle-mounted camera is received by the communication unit 191 of the image analysis server 190 via the communication line 70, and the image acquisition unit 192 acquires it as an investigation image (step 39).

The image analysis server 190 also has a report information acquisition unit 193 that collects investigative information included in the audio transmitted from the informer terminal 10 to the reception terminal 30 from the reception terminal 30 via the communication line 70. have been acquired.

Then, in the image matching unit 194, the video image acquired as the investigation image by the image acquisition unit 192, the investigation information acquired by the report information acquisition unit 193, and the investigation information registered in the suspicious person database 60. (Step 40). These comparisons may be performed in the same manner as the operation of the specific analysis server 50 shown in the first embodiment.

Thereafter, the image transmitting unit 195 selects the investigative information acquired by the report information acquiring unit 193 and the investigative images registered in the suspicious person database 60 from among the video images acquired by the image acquiring unit 192 as investigative images. A video image showing the suspicious person identified by the information is transmitted to the investigation terminal 40 via the communication unit 191 along with the position information of the vehicle camera that captured the video image (step 41).

The video image transmitted from the image transmitter 195 is received by the investigation terminal 40 via the communication line 70, and the investigator conducts an investigation using the video image received by the investigation terminal 40.

In this way, in this embodiment as well, when there is a report that a suspicious person has been sighted using the in-vehicle cameras 20-1 to 20-n, one of the in-vehicle cameras 20-1 to 20-n that made the report Since the configuration is such that images taken by an in-vehicle camera determined based on the location of the informant terminal 10 are acquired in real time and sent to the investigation terminal 40, suspicious persons can be detected even in locations where surveillance cameras etc. are not installed. This can make it easier to identify a suspicious person if a suspicious person is witnessed. In addition, not only when a suspicious person is witnessed, but also when an incident or accident occurs, images taken by the in-vehicle camera, which is determined based on the location of the caller terminal 10 that reported the incident or accident, are displayed in real time. By acquiring the information and sending it to the investigation terminal 40, when an incident or accident occurs, it becomes easier to identify suspicious vehicles, etc. involved in the incident or accident, even in places where surveillance cameras etc. are not installed. be able to.

10 Notifier Terminal 11, 21 Location Acquisition Unit 12, 23, 51, 81, 91, 181, 191 Communication Unit 13 Call Unit 14 Operation Unit 15, 26 Information Processing Unit 22 Photographing Unit 25 Storage Unit 20-1 to 20-n Vehicle-mounted camera 30 Reception terminal 40, 40-1 to 40-N Investigation terminal 50 Specific analysis server 52, 82, 92, 182 Reporter terminal position acquisition unit 53, 93, 182 Vehicle-mounted camera position acquisition unit 54, 94, 192 Image Acquisition unit 55, 95, 184 Camera identification unit 56, 96 Image identification unit 57, 97, 193 Report information acquisition unit 58, 98, 194 Image matching unit 59, 99, 195 Image transmission unit 60 Suspicious person database 70 Communication line 80, 180 Location acquisition server 83 Reporter terminal location transfer unit 84, 101 Investigation terminal location acquisition unit 85 Investigation terminal location transfer unit 90, 190 Image analysis server 102 Investigation terminal identification unit 185 Image transmission instruction unit

Claims (2)

an image acquisition means that acquires images taken by a plurality of in-vehicle cameras at all times or at predetermined intervals;
camera position information acquisition means for acquiring position information of the plurality of in-vehicle cameras;
a reception means for receiving a report related to an investigation from a whistleblower terminal;
When the reception means receives the report, a caller terminal location information acquisition means acquires location information of the caller terminal that made the report;
Based on the location information of the informer terminal and the vehicle-mounted camera, a vehicle-mounted camera that is determined based on the location of the reporter terminal that made the report accepted by the reception means is selected from among the plurality of vehicle-mounted cameras as an investigation use camera. camera identifying means for identifying as;
Image specifying means for specifying an image taken by the investigation use camera as an investigation image from among the images obtained by the image acquisition means;
image matching means for comparing the investigative image with the investigative information obtained through a hearing at the time of the report received by the receiving means;
An investigation support system comprising: image transmitting means for transmitting only the investigation images specified based on the matching result in the image matching means to an investigation terminal, among the investigation images . Image acquisition processing that acquires images taken with multiple in-vehicle cameras at all times or at predetermined intervals;
Camera position information acquisition processing that acquires position information of the plurality of in-vehicle cameras;
A reception process for receiving a report related to an investigation from a whistleblower terminal;
Upon receiving the report, a caller terminal location information acquisition process that acquires location information of the caller terminal that made the received report;
Based on the location information of the informer terminal and the in-vehicle camera, an in-vehicle camera determined from among the plurality of in-vehicle cameras based on the location of the informer terminal that made the report accepted in the reception process is used for investigation. Camera identification processing to identify it as a camera,
Image identification processing that identifies an image taken by the investigation use camera as an investigation image from among the images obtained in the image acquisition processing;
an image matching process of comparing the investigative image with the investigative information obtained through the hearing at the time of the report received in the reception process;
An investigation support method comprising: an image transmission process of transmitting only an investigation image identified based on a matching result in the image matching means, among the investigation images, to an investigation terminal.

Images