JP2024065688A - Surveillance camera system and program - Google Patents

Abstract

To enable easy grasping of next movement destination of a person reflected in an image of a confirmation object.SOLUTION: A monitoring camera system photographs a person existed in a monitoring area by using a plurality of photographing devices. An identification portion 212 identifies a person included in a plurality of image data photographed by the plurality of photographing devices. A storage portion 202 stores: a map data including an installation place of the plurality of photographing devices in the monitoring area; a plurality of image data photographed by the plurality of photographing devices; and a time sequence log data that is associated with an identification result of a person included in each image data and a photographing device that photographs the image data. A display portion 205 displays a movement destination of the person onto the map data on the basis of the installation place of the other photographing device photographing the person in sequence of a first photographing device while displaying the image data obtained by photographing the person by the first photographing device.SELECTED DRAWING: Figure 2

Description

The present invention relates to a technology for monitoring a monitoring area.

Conventionally, there are surveillance camera systems that can record images captured by cameras and play back the recorded images. There is also known technology that displays on a map the patrol route of a person captured in the recorded images (for example, Patent Document 1).

JP 2018-32950 A

Although the presence of the person captured on the video can be confirmed by playing back the recorded video, it is not easy to determine the person's destination from the played back video. Furthermore, when a traffic line showing the detailed route of a person's movement is displayed on map data, as in the technology described in Patent Document 1, the traffic lines may overlap or become mixed up depending on the person's movements, making it difficult to determine the next destination of the person captured by the camera.

The purpose of the present invention is to make it easy to determine the next destination of a person appearing in an image to be confirmed.

One aspect of the present invention provides a surveillance camera system that uses multiple image capture devices to capture images of people in a surveillance area, the surveillance camera system comprising: an identification unit that identifies the person included in multiple image data captured by the multiple image capture devices; a memory unit that stores map data including the locations of the multiple image capture devices in the surveillance area, the multiple image data captured by the multiple image capture devices, and chronological log data linking the identification results of the person included in the image data and the image capture devices that captured the image data; and a display unit that displays image data of the person captured by a first image capture device included in the multiple image capture devices, and displays the person's destination on the map data based on the location of a second image capture device that captured the person after the first image capture device.

The display unit may indicate the destination of the person by displaying an icon on the map data that moves differently depending on the relationship between the installation location of the first image capture device and the installation location of the second image capture device.

The display unit may move the icon in a straight line from the imaging range of the first imaging device toward the imaging range of the second imaging device.

The map data includes first map data of a first monitoring area and second map data of a second monitoring area, and the display unit may display, when the installation location of the first photographing device and the installation location of the second photographing device are included in the same map data, the icon that moves in a direction corresponding to the positional relationship between the installation locations of the first photographing device and the second photographing device on the map data, and when the installation location of the first photographing device and the installation location of the second photographing device are included in different map data, the icon that moves in a direction corresponding to the positional relationship between the first monitoring area and the second monitoring area on the map data.

The display unit may further vary the movement of the icon displayed depending on the time it takes for the person to be photographed by the first imaging device and then by the second imaging device.

The display unit may display the destination of the person using a first icon, and may display the installation locations of the plurality of image capture devices in an identifiable manner using a second icon, and may distinguish between the installation location of the image capture device that captured the person and the installation locations of other image capture devices that did not capture the person using the second icon.

The surveillance camera system may further include an operation unit that accepts a user's selection of the log data, and the display unit may display the image data of the first imaging device linked to the selected log data, identify the second imaging device that captured the person linked to the log data next after the first imaging device, and display the person's destination on the map data based on the installation location of the identified second imaging device.

Another aspect of the present invention provides a program for causing a computer that uses multiple image capture devices to capture images of a person in a monitored area to execute the steps of identifying the person included in multiple image data captured by the multiple image capture devices, storing map data including the locations of the multiple image capture devices in the monitored area, the multiple image data captured by the multiple image capture devices, and chronological log data linking the results of identifying the person included in the image data and the image capture devices that captured the image data, and displaying image data of the person captured by a first image capture device included in the multiple image capture devices, and displaying the person's destination on the map data based on the location of a second image capture device that captured the person after the first image capture device.

Yet another aspect of the present invention provides a surveillance camera system that uses multiple image capture devices to capture images of people in a surveillance area, the surveillance camera system comprising: an identification unit that identifies the person included in multiple image data captured by the multiple image capture devices; a storage unit that stores map data including the locations of the multiple image capture devices in the surveillance area, and time-series log data linking the identification results of the person included in the image data and the image capture devices that captured the image data; an operation unit that accepts a user's selection of the log data; and a display unit that displays an icon that moves linearly from the capture range of the first image capture device to the capture range of the second image capture device on the map data based on the location of the first image capture device linked to the selected log data and the location of the second image capture device that captured the person linked to the log data after the first image capture device, thereby indicating the destination of the person.

The present invention makes it easy to determine the next destination of a person appearing in an image to be confirmed.

1 is a diagram illustrating an example of a configuration of a surveillance camera system according to an embodiment. FIG. 2 illustrates an example of a configuration of a monitoring device. FIG. 13 is a diagram illustrating an example of a log list. 13 is a flowchart illustrating an example of an image analysis process of the monitoring device. 10 is a flowchart illustrating an example of a display process of the monitoring device. FIG. 13 illustrates an example of a setting screen. FIG. 13 is a diagram illustrating an example of a log display screen. FIG. 13 is a diagram showing an example of a log display screen showing a changed target shooting log. FIG. 13 is a diagram showing an example of a log display screen showing a changed target shooting log. FIG. 13 is a diagram showing an example of a log display screen showing a changed target shooting log. FIG. 13 is a diagram showing an example of a log display screen showing a changed target shooting log.

1. Configuration FIG. 1 is a diagram showing an example of the configuration of a surveillance camera system 1 according to an embodiment. The surveillance camera system 1 uses a plurality of imaging devices 10 to capture images of people present in a surveillance area 45, and monitors the intrusion of suspicious people and the movement of employees. The surveillance camera system 1 includes a plurality of imaging devices 10 and a surveillance device 20. The plurality of imaging devices 10 and the surveillance device 20 are installed in a surveillance area 40 and connected via a network 30. The surveillance area 40 is, for example, a property such as a building to be monitored. The surveillance area 40 has a plurality of surveillance areas 45. The plurality of surveillance areas 45 are, for example, different floors or different rooms in a surveillance building. At least one of the plurality of imaging devices 10 is installed in each surveillance area 45. The surveillance device 20 is, for example, installed in a management room in a surveillance building. The network 30 is, for example, a communication network such as a LAN (Local Area Network) constructed in the surveillance area 40, and connects the plurality of imaging devices 10 and the surveillance device 20 so that data communication is possible. The monitoring device 20 may be located outside the monitoring area 40 and may perform data communication with a plurality of image capturing devices 10 installed in a plurality of monitoring areas 40 .

The imaging device 10 captures image data of the monitoring area 45 and transmits this image data to the monitoring device 20. The imaging device 10 is, for example, a network camera equipped with a wide-angle lens such as a 90-degree camera or an omnidirectional camera. The image data is, for example, video data. However, the image data is not limited to video data and may be still image data. The imaging device 10 captures images for, for example, 24 hours a day and stores the captured image data. The imaging device 10 then transmits this image data to the monitoring device 20 in response to a specified trigger.

The monitoring device 20 is used by a user to monitor the monitoring area 45 based on image data captured by the imaging device 10. The monitoring device 20 is, for example, a general-purpose computer. The monitoring device 20 displays image data received from the imaging device 10. The monitoring device 20 also displays, together with the image data, the location of the imaging device 10 that captured the person included in the image data in an identifiable manner on map data. The fact that a person was captured by the imaging device 10 indicates that the person was present within the imaging range of the imaging device 10. Therefore, by identifiable display on map data of the location of the imaging device 10 that captured the person, the user can understand how the person moved within the monitoring area 45.

In the example shown in FIG. 1, the monitoring device 20 is used to monitor multiple monitoring areas 45 in one monitoring section 40, but it may be used to monitor multiple monitoring areas 45 in multiple monitoring sections 40. In this case, the monitoring device 20 is connected to multiple image capture devices 10 installed in multiple monitoring areas 45 in multiple monitoring sections 40, and receives image data captured by these image capture devices 10.

FIG. 2 is a diagram showing an example of the configuration of the monitoring device 20. The monitoring device 20 includes a control unit 201, a storage unit 202, a communication unit 203, an operation unit 204, and a display unit 205. The various units of the monitoring device 20 are connected via a bus.

The control unit 201 controls each part of the monitoring device 20 and performs various processes. The control unit 201 includes a processor such as one or more CPUs (Central Processing Units). The storage unit 202 stores various programs and data used by the control unit 201. The storage unit 202 includes memories such as RAM (Random Access Memory) and ROM (Read Only Memory), and storage such as HDD (Hard Disk Drive) and SSD (Solid State Drive). The storage unit 202 stores programs for realizing the functions of the monitoring device 20, multiple map data, and location information indicating the installation locations of multiple imaging devices 10. The multiple map data each include the installation locations of the imaging devices 10 in a different monitoring area 45.

The communication unit 203 is a communication interface for connecting the monitoring device 20 to the network 30. The communication unit 203 performs data communication with multiple image capture devices 10 via the network 30. The operation unit 204 is, for example, a keyboard and mouse, and accepts operations by a user. The display unit 205 is, for example, a liquid crystal display, and displays, on the map data stored in the memory unit 202, image data captured by the image capture device 10 and the installation location of the image capture device 10 that captured the person included in the image data.

The control unit 201 functions as an acquisition unit 211, an identification unit 212, a creation unit 213, and a display control unit 214. These functions are software modules that are realized by the control unit 201 executing a program stored in the storage unit 202 and the control unit 201 performing calculations or controlling each part of the monitoring device 20. However, at least some of these functions may be hardware modules that are realized by a combination of electronic circuits.

The acquisition unit 211 acquires multiple image data captured by multiple image capture devices 10, and stores them in the storage unit 202. Each image data includes a capture device ID and a capture date and time. The capture device ID is information that uniquely identifies the capture device 10 that captured the image data. The capture date and time is the date and time when the image data was captured by the capture device 10. The capture date and time includes the capture time.

The identification unit 212 performs image processing on the multiple image data acquired by the acquisition unit 211 to identify the people contained in the image data. Here, "identifying a person" refers to distinguishing between people. Identifying a person only requires distinguishing one person from another, and does not necessarily require identifying who that person is. Image processing includes, for example, person detection processing, person identification processing, and person tracking processing.

The person detection process is a process for detecting people from image data. The person detection process is performed using a known method, such as background subtraction.

The person identification process is a process for identifying a person detected by the person detection process. The person identification process is performed, for example, using face image recognition technology. As another example, the person identification process may be performed using external characteristics such as clothing and walking style.

In addition, a personal identification process may be further performed on a person registered in advance. The personal identification process is a process for identifying an individual for a person identified by the person identification process. The personal identification process is performed, for example, using face image recognition technology. For example, face image data of a known person such as an employee and a set of the user name of the person are registered in advance in the monitoring device 20. The identification unit 212 extracts face image data and the user name that match the face image data of the person identified by the person identification process from the face image data registered in advance, and identifies the person identified by the person identification process as the person with this user name. Note that a person other than the person registered in advance is recognized as an unregistered user. As another example, the personal identification process may be performed in cooperation with a user authentication system. For example, the user authentication system performs user authentication of a known person such as an employee using biometric information such as a fingerprint or iris, or an IC (Integrated Circuit) card. The photographing device 10 photographs the person to be authenticated. The identification unit 212 obtains the result of the user authentication from the user authentication system. The result of the user authentication includes the user name of the authenticated person. Based on the result of this user authentication, the identification unit 212 identifies the person undergoing user authentication who was photographed by the photographing device 10 as the person with the user name authenticated by the user authentication.

The person tracking process is a process for tracking a person identified by the person identification process. The person tracking process is performed using a known method such as an area feature tracking method or a feature point tracking method. In the person identification process using the face recognition technology described above, if the face of a person included in image data is not facing forward, the person cannot be recognized. Therefore, during a period in which the face of a person photographed by the photographing device 10 is facing to the side or backward, the person is not recognized. However, by performing the person tracking process, the person photographed by the photographing device 10 can be recognized even during a period in which the face of the person photographed by the photographing device 10 is facing to the side or backward. However, the person tracking process is not essential. For example, only the person detection process, and the person identification process and individual specification process using face image recognition technology may be performed.

The creation unit 213 creates a log list 221 (an example of log data according to the present invention) for each person identified by the identification unit 212, and stores it in the storage unit 202. The log list 221 is a shooting history indicating when and by which imaging device 10 each person identified by the identification unit 212 was photographed. The log list 221 may be created for each imaging device 10, not for each person. In this case, the creation unit 213 creates a shooting history indicating when each person was photographed for each imaging device 10. The log list 221 is created in chronological order based on the shooting date and time. In other words, the log list 221 is chronological data linking the identification result of the person included in the image data photographed by the imaging device 10 and the imaging device 10 that photographed the image data.

Figure 3 is a diagram showing an example of the log list 221. In Figure 3, the log list 221 of user X is shown. The log list 221 includes multiple shooting logs. Each shooting log includes the shooting date and time, the shooting device ID, the user name, and image data. The shooting date and time and the shooting device ID are included in the image data. In the example shown in Figure 3, the shooting date and time are shown in units of days, hours, and minutes, but may also be shown in units of seconds. The user name is the user name of the person identified by the identification unit 212. For the user name of a person who has not been identified by the identification unit 212, a user name indicating that the person is not registered is used.

Note that the log list 221 does not necessarily have to include all shooting logs that indicate the history of photographing a person. For example, if the same person is photographed continuously by the same photographing device 10 during a certain period of time, the first shooting log and the last shooting log of this period will be included in the log list 221. On the other hand, for the shooting logs in between, only shooting logs for a predetermined time interval, such as 30 minutes, will be included, and the other shooting logs may be deleted or consolidated into shooting logs for a predetermined time interval. Note that instead of leaving only the first and last as shooting logs, the entire time the same person was photographed may be left as shooting logs, and the log list may display the time during which shooting was continued, such as 9:10 to 9:40.

Returning to FIG. 2, the display control unit 214 displays the target shooting log to be displayed, which is included in the log list 221 captured by the creation unit 213, on the map data stored in the storage unit 202 on the display unit 205. As will be described later, the target shooting log is a shooting log selected by the user to check the log on the setting screen 250 of FIG. 6. In the map data, the installation locations of each of the shooting devices 10 installed in the monitoring area 45 indicated by the map data are displayed identifiable using the camera icon 311 based on the location information of the shooting device 10 stored in the storage unit 202. Therefore, the map data may be used as location information indicating the installation location of each of the shooting devices 10. Note that the "icon" here refers to a figure that symbolizes the target, and does not have to be an image used for operation. In addition, the installation locations of the shooting devices 10 that have captured the target person, who is a person selected by the user on the setting screen 250, and the installation locations of the shooting devices 10 that have not captured the target person are displayed in a distinguishable manner by making the appearance of the camera icon 311 different. The camera icon 311 is an example of a second icon according to the present invention.

The display control unit 214 also displays, on the map data, image data of a target person captured by the imaging device 10, from among the multiple image data stored in the storage unit 202. In this embodiment, an example will be described in which a thumbnail image 312 cut out from video data is displayed on the map data. The display control unit 214 first displays the thumbnail image 312 of this image data, and plays this image data in response to a user operation. Both the image data and the thumbnail image 312 are examples of image data captured by the imaging device 10 according to the present invention.

Furthermore, based on the location information of the multiple image capture devices 10 stored in the storage unit 202 and the image capture date and time included in the log list 221, the display control unit 214 uses a person icon 313 to display the destination of the target person on the map data based on the installation location of the image capture device 10 that next captured the target person after the image capture device 10, along with image data of the target person captured by the image capture device 10 described above. The image data and the person icon 313 are displayed together on the same map data on the same screen. The person icon 313 is an icon that indicates a person. The person icon 313 is an example of a first icon according to the present invention. The display control unit 214 displays an animation in which the movement of the person icon 313 differs depending on the relationship between the installation location of the image capture device 10 that captured the image data to be displayed and the installation location of the image capture device 10 that next captured the target person included in the image data.

For example, if these image capture devices 10 are different image capture devices 10 and the locations of these image capture devices 10 are indicated by the same map data, the target person is shown to have moved from the image capture range of one image capture device 10 to the image capture range of another image capture device 10 in the monitoring area 45 indicated by the currently displayed map data. In this case, the display control unit 214 displays an animation of a moving person icon 313 indicating that the target person has moved from the image capture range of one image capture device 10 toward the image capture range of another image capture device 10 in the monitoring area 45 indicated by the currently displayed map data.

In addition, if these image capture devices 10 are the same image capture device 10, it indicates that the target person is staying within the image capture range of this image capture device 10. In this case, the display control unit 214 displays an animation of moving the person icon 313 indicating that the target person is staying within the image capture range of this image capture device 10.

Furthermore, if these image capture devices 10 are different image capture devices 10 and the locations of these image capture devices 10 are indicated by different map data, it indicates that the target person has moved from the image capture range of one image capture device 10 to a monitoring area 45 different from the monitoring area 45 indicated by the currently displayed map data. In this case, the display control unit 214 displays an animation of moving the person icon 313 indicating that the target person has moved from the image capture range of one image capture device 10 to a monitoring area 45 different from the monitoring area 45 indicated by the currently displayed map data.

2. Operation 2.1 Image analysis processing Fig. 4 is a flowchart showing an example of image analysis processing of the monitoring device 20. In the image analysis processing, a person photographed by the imaging device 10 is identified, and a shooting log is created for each person. The image analysis processing may be started in response to an operation by a user using the operation unit 204, or may be started at a predetermined timing.

In step S11, the acquisition unit 211 acquires multiple image data captured by multiple image capture devices 10, and stores the image data in the storage unit 202. For example, the acquisition unit 211 transmits an acquisition request for image data to the multiple image capture devices 10 in response to a user's operation using the operation unit 204. When multiple image data are transmitted from the multiple image capture devices 10 in response to this acquisition request, the acquisition unit 211 receives the image data and stores it in the storage unit 202.

In step S12, the identification unit 212 performs image processing on the multiple image data received in step S11 to identify people included in the image data. First, the identification unit 212 performs person detection processing to detect people from the multiple image data. Next, the identification unit 212 performs person identification processing to identify people detected by the person detection processing. Furthermore, for people registered in advance, the identification unit 212 performs individual identification processing to identify individuals identified by the person identification processing. Furthermore, the identification unit 212 performs person tracking processing to track people identified by the person identification processing. In this way, people photographed by the multiple image capture devices 10 are identified.

In step S13, the creation unit 213 creates a log list 221 using the results of the image processing performed in step S12, and stores the log list 221 in the storage unit 202. For example, if user X is recognized from image data captured by the image capture device 10A at 9:00 on October 1, 2022, as shown in FIG. 3, a shooting log including the shooting date and time "October 1, 2022, 9:00", the image capture device ID "image capture device 10A", the user name "user X", and the image data is added to the log list 221. Also, if user X is recognized from image data captured by the image capture device 10B at 9:10 on October 1, 2022, a shooting log including the shooting date and time "October 1, 2022, 9:10", the image capture device ID "image capture device 10B", the user name "user X", and the image data is added to the log list 221.

2.2 Display Processing Fig. 5 is a flowchart showing an example of the display processing of the monitoring device 20. In the display processing, the shooting log created in the above-mentioned image analysis processing is displayed on the map data. The display processing is started in response to, for example, a user performing an operation to instruct execution of the display processing using the operation unit 204.

In step S21, when an operation is performed to instruct execution of the display process, the display control unit 214 first causes the display unit 205 to display a setting screen 250 for setting various conditions for the display process. FIG. 6 is a diagram showing an example of the setting screen 250. As shown in FIG. 6(a), the setting screen 250 includes a person selection area 260, a period designation area 270, and a list display area 280. The person selection area 260 accepts an operation to select a target person to be monitored. The period designation area 270 accepts an operation to designate a target period to be displayed. The list display area 280 displays a log list 281 of the shooting logs of the target person during the target period.

In step S22, when the user performs an operation to select a target person to be monitored using the operation unit 204, the operation unit 204 accepts this operation. As shown in FIG. 6(a), the person selection area 260 of the setting screen 250 includes a selection screen button 261. When the user presses the selection screen button 261 using the operation unit 204, the selection screen 262 shown in FIG. 6(b) is displayed on the display unit 205. This selection screen 262 may be displayed superimposed on the setting screen 250 shown in FIG. 6(a), or may be displayed in place of or alongside the setting screen 250. Note that the setting screen 250 may display an entire log list in chronological order, in which multiple users are mixed, and may display a face image in a set with the user name in the log list 281. In this case, when an operation to select a shooting log displayed on the log list 281 is performed, the selected shooting log becomes the target shooting log, and the process proceeds to step S24.

The selection screen 262 includes a person list 263 and a decision button 264. The person list 263 is a list of people identified in the image analysis process described above. The person list 263 includes multiple sets of a person's face image and the user name of the person. For the user name of a person who was not identified in the image analysis process described above, a user name indicating that the person is unregistered, such as "unregistered user #1", is used and assigned to each unregistered user who was identified as the same person based on the characteristics of the person. The decision button 264 accepts an operation to decide the selection of a person. The user performs an operation to select a target person to be monitored from the person list 263, and then presses the decision button 264. For example, if the target person is user X, the user uses the operation unit 204 to select user X from the person list 263 and presses the decision button 264. As a result, user X is selected as the target person.

In step S23, when the user performs an operation to specify the target period to be displayed using the operation unit 204, the operation unit 204 accepts this operation. As shown in FIG. 6(a), the period specification area 270 of the setting screen 250 includes an input area 271 and a decision button 272. The input area 271 accepts an operation to input the target period. The decision button 272 accepts an operation to decide the target period. For example, if the target period is from 7:00 on October 1, 2022 to 19:00 on October 1, 2022, the user inputs these dates and times into the input area 271 using the operation unit 204 and presses the decision button 272. As a result, the period from 7:00 on October 1, 2022 to 19:00 on October 1, 2022 is specified as the target period.

In step S24, the display control unit 214 displays a log list 281 of the shooting logs of the target person during the target period in the list display area 280 of the setting screen 250. Here, an example will be described in which the target person is user X and the target period is from 7:00 on October 1, 2022 to 19:00 on October 1, 2022. In this case, shooting logs whose shooting dates and times are included in the period from 7:00 on October 1, 2022 to 19:00 on October 1, 2022 are extracted from the log list 221 of user X shown in FIG. 3. The log list 281 is constructed by chronologically arranging the sets of shooting dates and times, shooting device IDs, and user names included in the extracted shooting logs, and indicates the order in which the target person was photographed by multiple shooting devices 10.

In step S25, when the user uses the operation unit 204 to perform an operation to select the target shooting log to be displayed, the operation unit 204 accepts this operation. As shown in FIG. 6(a), the list display area 280 of the setting screen 250 includes a display button 291. The display button 291 accepts an operation to instruct the display of the target shooting log. For example, if the user wants to view the shooting log in which the shooting device 10A captured a picture of user X at 9:00 on October 1, 2022, the user uses the operation unit 204 to select the corresponding shooting log No. 1 and presses the display button 291. As a result, the shooting log No. 1 is selected as the target shooting log.

In step S26, when the display button 291 is pressed, the display control unit 214 causes the display unit 205 to display a log display screen 300 showing the target shooting log selected in step S25. FIG. 7 is a diagram showing an example of the log display screen 300. Here, an example will be described in which the target shooting log is the shooting log No. 1 shown in FIG. 6. In this case, the log display screen 300 displays map data showing the installation location of the camera device 10A corresponding to the shooting log No. 1, among the multiple map data stored in the storage unit 202. For example, if the camera device 10A is installed on the first floor, the log display screen 300 displays the map data for the first floor.

On this map data, multiple camera icons 311 indicating the installation locations of the multiple image capture devices 10 are displayed based on the location information of the multiple image capture devices 10 stored in the storage unit 202. Here, among the multiple image capture devices 10, the image capture devices 10A to 10C corresponding to the image capture logs No. 1 to No. 5 included in the log list 281 shown in FIG. 6 are capturing images of the target person, user X, during the target period. Therefore, the camera icons 311A to 311C of the image capture devices 10A to 10C are displayed in opaque dark colors. Furthermore, the camera icon 311A of the image capture device 10A corresponding to the image capture log No. 1, which is the target image capture log, is highlighted in a color different from the other camera icons 311. In the example shown in FIG. 7, the image capture devices 10A, 10B, and 10C are examples of the first image capture device, the second image capture device, and the third image capture device, respectively, according to the present invention. Meanwhile, among the multiple image capture devices 10, none of the image capture devices 10 other than the image capture devices 10A-10C captured images of the target person, user X, during the target period. Therefore, the camera icons 311 other than the camera icons 311A-311C, which indicate the installation locations of the image capture devices 10 other than the image capture devices 10A-10C, are displayed in a semi-transparent color. In this way, the camera icons 311A-311C of the image capture devices 10A-10C that captured images of the target person, user X, are displayed to be distinguished from the camera icons 311 of the other image capture devices 10 that did not capture images of user X.

Also, near the camera icon 311A, a thumbnail image 312-1 of image data corresponding to the shooting log No. 1, that is, image data captured by the shooting device 10A at 9:00 on October 1, 2022, is displayed. This image data includes user X. Note that "nearby" here refers to a range where the distance from the position of the target is smaller than a predetermined value. "Nearby" may be a range that can be recognized as being related to the target, and may be, for example, the shooting range of the shooting device 10. The thumbnail image 312-1 is, for example, a still image of the start position included in the image data. When the user wants to view all the image data, the user performs an operation to instruct playback of the image data using the operation unit 204. When this operation is performed, the image data is played on a screen other than the log display screen 300 so that the image data can be viewed on a large screen, for example. As another example, the image data may be played in the thumbnail image 312-1.

Furthermore, a person icon 313 is displayed near the camera icon 311A. The person icon 313 performs an animation of moving in a direction according to the positional relationship between the installation location of the photographing device 10A corresponding to the photographing log No. 1, which is the target photographing log, and the installation location of the photographing device 10B corresponding to the next photographing log No. 2. The next photographing log is a photographing log that includes the earliest photographing date and time in a period after the photographing date and time of the target photographing log among the multiple photographing logs that photographed the target person during the target period included in the log list 281. The next photographing log is determined based on the photographing date and time included in the log list 281. In addition, based on the photographing device ID included in the log list 281, the photographing device 10 that photographed the target person next to the photographing device 10 corresponding to the target photographing log, that is, the photographing device 10 corresponding to the next photographing log of the target photographing log, is specified. The next photographing device 10 is specified, for example, by the display control unit 214 or the display unit 205. Both the photographing device 10A and the photographing device 10B are installed on the first floor, for example, and are shown by the same map data. In this case, as shown in FIG. 7, the display control unit 214 moves the person icon 313 in a straight line from the shooting range of the image capture device 10A corresponding to the No. 1 shooting log toward the shooting range of the image capture device 10B corresponding to the next No. 2 shooting log. For example, the display control unit 214 moves the person icon 313 in a straight line on a line segment that does not appear on the map data, connecting the camera icons 311A and 311B with a straight line, ignoring obstacles (doors, walls, etc.) displayed in the map data. Since the person icon 313 moves differently depending on the installation location of the image capture device 10 that captured the target person, the user can see by watching the animation of the person icon 313 that the target person has moved from the shooting range of the image capture device 10A to the shooting range of the image capture device 10B.

Returning to FIG. 5, in step S27, the display control unit 214 determines whether the target shooting log has been changed. As shown in FIG. 7, the log display screen 300 includes a "Next" button 321, a "Previous" button 322, a "Go to the beginning" button 323, and a "Go to the end" button 324. The "Next" button 321 accepts an operation to change the target shooting log to the shooting log next to the currently selected shooting log. The "Previous" button 322 accepts an operation to change the target shooting log to the shooting log previous to the currently selected shooting log. The "Go to the beginning" button 323 accepts an operation to change the target shooting log to the first shooting log included in the log list 281. The "Go to the end" button 324 accepts an operation to change the target shooting log to the last shooting log included in the log list 281. For example, when the user wants to view the next shooting log, the user presses the "Next" button 321 using the operation unit 204. When the "Next" button 321 is pressed, the display control unit 214 determines that the target shooting log has been changed to the next shooting log (YES in step S27), returns to step S26, and performs the processing of step S26 based on the changed target shooting log.

Figure 8 is a diagram showing an example of a log display screen 301 showing the target shooting log after the change. Here, an example will be described in which the target shooting log has been changed to the shooting log No. 2 shown in Figure 6. Note that the same components as those in the log display screen 300 shown in Figure 7 are given the same reference numerals and their description will be omitted. The log display screen 301 displays map data showing the installation location of the imaging device 10B corresponding to the shooting log No. 2. However, since the installation locations of the imaging devices 10A and 10B are shown by the same map data as described above, the map data included in the log display screen 301 is the same as the map data included in the log display screen 300 shown in Figure 7.

The camera icon 311B of the image capture device 10B corresponding to the No. 2 shooting log is highlighted in a color different from the other camera icons 311. The other camera icons 311, including the camera icon 311A, are not highlighted. Furthermore, a thumbnail image 312-2 of the image data included in the No. 2 shooting log, that is, the image data captured by the image capture device 10B at 9:10 on Oct. 1, 2022, is displayed near the camera icon 311B. This image data includes user X.

Furthermore, a person icon 313 is displayed near the camera icon 311B. In the example shown in FIG. 6, the next shooting log after the target shooting log No. 2 is No. 3. As shown in FIG. 6, the camera device 10B corresponding to the No. 2 shooting log and the next camera device 10B corresponding to the No. 3 shooting log are the same camera device 10. In this case, the display control unit 214 displays an animation of the person icon 313 jumping as shown in FIG. 8. By watching the animation of the person icon 313, the user can see that the target person has stayed within the shooting range of the camera device 10B.

Returning to FIG. 5, when the user presses the "Next" button 321 again using the operation unit 204 in step S27, the display control unit 214 determines that the target shooting log has been changed to the next shooting log (YES in step S27), returns to step S26, and performs the processing of step S26 based on the changed target shooting log.

Figure 9 is a diagram showing an example of a log display screen 302 showing the target shooting log after the change. Here, an example will be described in which the target shooting log has been changed to shooting log No. 3 shown in Figure 6. Note that the same components as those in the log display screen 301 shown in Figure 8 are given the same reference numerals and their description will be omitted. Map data showing the installation location of the shooting device 10B corresponding to the shooting log No. 3 is displayed on the log display screen 302. The map data included in the log display screen 302 is the same as the map data included in the log display screen 301 shown in Figure 8.

The camera icon 311B of the image capture device 10B corresponding to the No. 3 shooting log is highlighted in a color different from the other camera icons 311. Note that the camera icons 311 other than the camera icon 311B are not highlighted. Furthermore, a thumbnail image 312-3 of the image data included in the No. 3 shooting log, that is, the image data captured by the image capture device 10B at 9:40 on Oct. 1, 2022, is displayed near the camera icon 311B. This image data includes user X.

Furthermore, a person icon 313 is displayed near the camera icon 311B. In the example shown in FIG. 6, the next shooting log after the target shooting log No. 3 is No. 4. The camera device 10B corresponding to the shooting log No. 3 and the camera device 10C corresponding to the next shooting log No. 4 are both installed on the first floor, so the installation locations of the camera device 10B and the camera device 10C are indicated by the same map data. In this case, as shown in FIG. 9, the display control unit 214 moves the person icon 313 in a straight line in the direction from the shooting range of the camera device 10B corresponding to the shooting log No. 3 to the shooting range of the camera device 10C corresponding to the next shooting log No. 4. In the example shown in FIG. 9, the camera devices 10B and 10C are examples of the first and second camera devices according to the present invention, respectively. By viewing the animation of this person icon 313, the user can see that the target person has moved from the shooting range of image capture device 10B to the shooting range of image capture device 10C.

Returning to FIG. 5, when the user presses the "Next" button 321 again in step S27, the display control unit 214 determines that the target shooting log has been changed to the next shooting log (YES in step S27), returns to step S26, and performs the processing of step S26 based on the changed target shooting log.

Figure 10 is a diagram showing an example of a log display screen 303 showing the target shooting log after the change. Here, an example will be described in which the target shooting log has been changed to shooting log No. 4 shown in Figure 6. Note that the same components as those in the log display screen 302 shown in Figure 9 are given the same reference numerals and their description will be omitted. Map data showing the installation location of the camera 10C corresponding to the shooting log No. 4 is displayed on the log display screen 303. However, as described above, the camera 10B and the camera 10C are shown by the same map data, so the map data included in the log display screen 303 is the same as the map data included in the log display screen 302 shown in Figure 9.

The camera icon 311C of the image capture device 10C corresponding to the No. 4 shooting log is highlighted in a color different from the other camera icons 311. The other camera icons 311, including the camera icon 311B, are not highlighted. Furthermore, a thumbnail image 312-4 of the image data included in the No. 4 shooting log, that is, the image data captured by the image capture device 10C at 10:00 on Oct. 1, 2022, is displayed near the camera icon 311C. This image data includes user X.

Furthermore, a person icon 313 is displayed near the camera icon 311C. In the example shown in FIG. 6, the next shooting log after the target shooting log No. 4 is No. 5. The camera 10C corresponding to the shooting log No. 4 is installed on the first floor, for example, while the camera 10D corresponding to the next shooting log No. 5 is installed on the second floor, for example. Therefore, the installation location of the camera 10C is indicated by the map data of the first floor, and the installation location of the camera 10D is indicated by the map data of the second floor. The map data of the first floor and the map data of the second floor are examples of the first map data and the second map data, respectively. The monitoring area 45 of the first floor and the monitoring area 45 of the second floor are examples of the first monitoring area and the second monitoring area according to the present invention, respectively. In this way, when the installation location of the image capture device 10C and the installation location of the image capture device 10D are indicated by different map data, the display control unit 214 displays an animation in which the person icon 313 moves in a direction according to the positional relationship of the monitoring area 45 indicated by these map data. The monitoring area 45 of the second floor is located above the monitoring area 45 of the first floor. Therefore, as shown in FIG. 10, the display control unit 214 displays an animation in which the person icon 313 gradually becomes smaller or disappears after moving upward from the installation range of the image capture device 10C. In the example shown in FIG. 10, the image capture devices 10C and 10D are examples of the first image capture device and the second image capture device, respectively, according to the present invention. By watching the animation of the person icon 313, the user can understand that the target person has moved from the shooting range of the image capture device 10C to another monitoring area 45 located above the monitoring area 45 indicated by the displayed map data.

Returning to FIG. 5, when the user presses the "Next" button 321 again in step S27, the display control unit 214 determines that the target shooting log has been changed to the next shooting log (YES in step S27), returns to step S26, and performs the processing of step S26 based on the changed target shooting log.

Figure 11 is a diagram showing an example of a log display screen 304 showing the target shooting log after the change. Here, an example will be described in which the target shooting log has been changed to the shooting log No. 5 shown in Figure 6. The same components as those in the log display screen 303 shown in Figure 10 are given the same reference numerals and their description will be omitted. The log display screen 304 displays map data showing the installation location of the camera device 10D corresponding to the shooting log No. 5. For example, if the camera device 10D is installed on the second floor, the map data for the second floor is displayed. As described above, the camera devices 10C and 10D are displayed by different map data, so the log display screen 304 displays map data different from the map data included in the log display screen 303 shown in Figure 10.

The camera icon 311D of the image capture device 10D corresponding to the No. 5 image capture log is highlighted in a color different from the other camera icons 311. The camera icons 311 other than the camera icon 311D included in the log display screen 304 are displayed in a semi-transparent color to indicate the installation locations of the image capture devices 10 that have not captured the target person, user X. Furthermore, a thumbnail image 312-5 of the image data included in the No. 5 image capture log, i.e., the image data captured by the image capture device 10D at 10:10 on October 1, 2022, is displayed near the camera icon 311D. This image data includes user X.

Furthermore, a person icon 313 is displayed near the camera icon 311D. In the example shown in FIG. 6, the target shooting log, shooting log No. 5, is the last shooting log included in the log list 281. In this case, the display control unit 214 displays a person icon 313 that stops in the shooting range of the imaging device 10D. By looking at this stopped person icon 313, the user can tell that the last shooting log in the target period has been displayed.

As shown in FIG. 11, the log display screen 304 includes a close button 325. The close button 325 accepts an operation to close the log display screen 304. When the user presses this close button 325 using the operation unit 204, the display control unit 214 determines that the target shooting log has not been changed in step S27 shown in FIG. 5 (determination in step S27 is NO), and determines in step S28 that the display of the shooting log is to be ended (determination in step S28 is YES), and closes the log display screen 300 to end this display process.

According to the embodiment described above, the image data of the target person captured by one of the image capture devices 10 is displayed on the map data together with the person icon 313 moving from the capture range of the one image capture device 10 toward the capture range of the other image capture device 10 that next captured the target person, so that the user can easily grasp the next destination while checking the image data of the target person captured by the one image capture device 10. In addition, since the movement of the target person is expressed based on the installation location of the image capture device 10 that captured the target person, rather than displaying a flow line showing the actual movement path of the target person, the user can easily visually confirm the destination of the target person. Furthermore, since an animation of the person icon 313 moving in a straight line in the direction from the capture range of the one image capture device 10 toward the capture range of the other image capture device 10 is displayed, the user can easily visually confirm the destination of the target person compared to a configuration in which a flow line showing the detailed movement path of the target person is displayed on the map data.

In addition, depending on whether the installation location of one photographing device 10 that photographed the target person and the installation location of another photographing device 10 that photographed the target person next are indicated by the same map data, an animation is displayed in which the person icon 313 moves differently, so the user can intuitively understand the relationship between the installation locations of these photographing devices 10. Furthermore, if the installation location of one photographing device 10 that photographed the target person and the installation location of another photographing device 10 that photographed the target person next are indicated by different map data, an animation is displayed in which the person icon 313 moves in a direction according to the positional relationship of the monitoring area 45 indicated by these map data, so the user can intuitively understand the next destination of the target person. Furthermore, on the map data, the camera icon 311 of the photographing device 10 that photographed the target person and the camera icon 311 of the photographing device 10 that did not photograph the target person are displayed separately, so the user can easily understand how the target person has moved.

3. Modifications The present invention is not limited to the above-described embodiment. The above-described embodiment may be modified as in the following examples. In this case, two or more of the following modifications may be used in combination.

In the above-described embodiment, the display control unit 214 may display the target person's stay time or movement time on the map data. The stay time is the time that the target person stays within the shooting range of one shooting device 10. As an example, the stay time is obtained by counting the time from the shooting date and time of the target shooting log corresponding to a certain shooting device 10 to the shooting date and time of the next shooting log corresponding to this shooting device 10. In the example shown in FIG. 6, the shooting device 10B corresponding to the shooting log No. 2 is the same as the shooting device 10B corresponding to the shooting log No. 3. In this case, the stay time is 30 minutes from 9:10 on October 1, 2022, which is the shooting date and time of the shooting log No. 2, to 9:40 on October 1, 2022, which is the shooting date and time of the shooting log No. 3. Then, on the log display screen 301 shown in FIG. 8, a stay time of 30 minutes is displayed near the camera icon 311B or near the thumbnail image 312-2. As another example, the stay time may be the time during which the target person is continuously photographed by the same image capture device 10. For example, if the target person, user X, is continuously photographed by the same image capture device 10 from 13:00 to 16:00, the stay time is 3 hours. The stay time is displayed, for example, near the camera icon 311 or near the thumbnail image 312 of the image capture device 10 corresponding to the target photography log.

The travel time is the time required for a target person to be photographed by one photographing device 10 and then photographed by another photographing device 10. The travel time is calculated by counting the time from the photographing date and time of the target photographing log corresponding to one photographing device 10 to the photographing date and time of the next photographing log corresponding to the other photographing device 10. In the example shown in FIG. 6, the photographing device 10A corresponding to the photographing log No. 1 is different from the photographing device 10B corresponding to the photographing log No. 2. In this case, the travel time is 10 minutes from 9:00 on October 1, 2022, which is the photographing date and time of the photographing log No. 1, to 9:10 on October 1, 2022, which is the photographing date and time of the photographing log No. 2. Then, on the log display screen 300 shown in FIG. 7, a travel time of 10 minutes is displayed near the camera icon 311A or near the thumbnail image 312-1. In addition, the stay time or travel time may be displayed only when it is a predetermined time or more, such as 5 minutes. This variation allows users to easily understand the target person's stay or travel time.

In the above-described embodiment, the display control unit 214 may vary the movement of the person icon 313 displayed depending on the movement time of the target person. As described above, the movement time is the time required from when the target person is photographed by one image capture device 10 until he or she is photographed by another image capture device 10. For example, the longer the movement time, the slower the display control unit 214 may move the person icon 313. According to this modified example, the user can intuitively grasp the movement time of the target person.

In the above embodiment, the animation of the person icon 313 is not limited to the above example, and may be any animation that allows the target person's next destination to be identified. For example, when the installation location of one photographing device 10 corresponding to the target photographing log and the installation location of another photographing device 10 corresponding to the next photographing log are indicated by the same map data, the animation of the person icon 313 may be any animation that moves to indicate that the person has moved from the installation location of the one photographing device 10 to the installation location of the other photographing device 10. Also, when the photographing device 10 corresponding to the target photographing log and the photographing device 10 corresponding to the next photographing log are the same, the animation of the person icon 313 may be any animation that moves to indicate that the person is staying within the photographing range of the photographing device 10. For example, the animation of the person icon 313 may be an animation of the person icon 313 sitting down, or an animation of the person icon 313 moving around the installation location of the photographing device 10. Furthermore, when the installation location of one image capture device 10 corresponding to the target image capture log and the installation location of another image capture device 10 corresponding to the next image capture log are indicated by different map data, the animation of the person icon 313 may be any animation that indicates that the target person has moved toward a monitoring area 45 different from the monitoring area 45 indicated by the currently displayed map data. For example, the animation of the person icon 313 may be an animation that fades out after moving in a predetermined direction, regardless of the positional relationship of the monitoring area 45 indicated by the different map data. Even with the configuration according to this modified example, the user can easily grasp the next destination of the person captured by the image capture device 10.

In the above-described embodiment, when the shooting ranges of multiple image capture devices 10 overlap, a target person may be captured by multiple image capture devices 10 at the same shooting date and time. Here, an example is described in which the shooting ranges of image capture devices 10A and 10B overlap. For example, image capture device 10A captures user X from 9:00 on October 2, 2022 to 9:11 on October 2, 2022. Image capture device 10B captures user X from 9:10 on October 2, 2022 to 9:15 on October 2, 2022. In this case, user X will have been photographed by both image capture device 10A and image capture device 10B during the period from 9:10 on October 2, 2022 to 9:11 on October 1, 2022, but the image capture log for 9:10 on October 2, 2022 included in log list 281 may indicate that image capture device 10B photographed user X. As another example, the image capture log for 9:10 on October 2, 2022 included in log list 281 may indicate that image capture device 10A photographed user X. According to this modified example, even if a target person is photographed by multiple image capture devices 10 at the same shooting date and time, an appropriate image capture log can be displayed.

In the above-described embodiment, when multiple image capture devices 10 are installed in a small space, animation of the person icon 313 indicating movement between the locations of the image capture devices 10 does not need to be displayed when a target person is captured by these image capture devices 10. This is because displaying animation of the person icon 313 indicating movement between the locations of the image capture devices 10 within a small space would result in a cluttered display. According to this modified example, when multiple image capture devices 10 are installed in a small space, it is possible to prevent the display from becoming cluttered when a target person is captured by these image capture devices 10.

In the above-described embodiment, multiple target persons may be selected. In this case, a person icon 313 with a different appearance, such as color or shape, may be displayed depending on the target person. According to this modification, the user can easily grasp the next destination of multiple people photographed by the photographing device 10.

In the above-described embodiment, the display showing the destination of the target person is not limited to a display using the person icon 313. Instead of the person icon 313, an object such as a line or arrow may be used to indicate that the target person has moved from the shooting range of one image capture device 10 corresponding to the target shooting log toward the shooting range of another image capture device 10 corresponding to the next shooting log. Even with the configuration related to this modified example, the user can easily grasp the next destination of the person photographed by the image capture device 10.

In the above-described embodiment, the person icon 313 does not necessarily have to be displayed. The display showing the destination of the target person may be performed using the camera icon 311 of the photographing device 10 instead of the person icon 313. For example, when the installation location of one photographing device 10 corresponding to the target photographing log and the installation location of another photographing device 10 corresponding to the next photographing log are indicated by the same map data, the camera icon 311 indicating the installation location of the other photographing device 10 may be displayed in a blinking manner. Also, when the installation location of one photographing device 10 corresponding to the target photographing log and the installation location of another photographing device 10 corresponding to the next photographing log are indicated by different map data, the camera icon 311 indicating the installation location of one photographing device 10 may be displayed in a blinking manner. Even with the configuration according to this modified example, the user can easily grasp the next destination of the person photographed by the photographing device 10.

In the above-described embodiment, the method of highlighting the camera icon 311 of the photographing device 10 corresponding to the target photographing log is not limited to changing the color. For example, the shape or size of the camera icon 311 may be changed, or additional information may be added to the camera icon 311. Even with the configuration related to this modified example, the user can easily grasp the installation location of the photographing device 10 corresponding to the target photographing log.

In the above-described embodiment, an operation may be performed to select a target person from among people photographed during a target period. For example, the user first performs an operation to specify the target period using the operation unit 204. Next, a person list as shown in FIG. 6B is displayed on the display unit 205 for people included in image data photographed by multiple image capture devices 10 during the target period. The user performs an operation to select a target person from this person list using the operation unit 204. According to this modified example, the user can select a target person from among people photographed by multiple image capture devices 10 during the target period. As another example, an operation to select a target person may not be performed. For example, the user performs an operation to specify the photographing date and time and the image capture device 10 using the operation unit 204. A person included in image data photographed by the specified image capture device 10 at the photographing date and time specified by this operation may be the target person. When multiple people are included in the image data, multiple people may be the target person. According to this modified example, the burden of the operation on the user to select a target person can be reduced.

In the above-described embodiment, the operation of specifying the target period does not necessarily have to be performed. For example, the shooting log with the oldest shooting date and time may be the target shooting log. According to this modified example, the operational burden on the user of specifying the target period can be reduced.

In the above-described embodiment, the log list 281 does not necessarily have to be displayed. For example, among multiple shooting logs in which the target person was photographed during the target period, the shooting log with the oldest shooting date and time may become the target shooting log. According to this modified example, it is possible to reduce the operational burden on the user who specifies the target shooting log.

In the above-described embodiment, multiple shooting logs in which the target person was photographed during the target period may be displayed in sequence without user operation. For example, of multiple shooting logs in which the target person was photographed during the target period, the shooting log with the oldest shooting date and time is displayed. When this shooting log is displayed, the image data contained in this shooting log is automatically played. Then, when the playback of this image data ends, the next shooting log is displayed. In this way, multiple shooting logs in which the target person was photographed during the target period are displayed in sequence without user operation. According to this modified example, the operational burden on the user to change the target shooting log can be reduced.

In the above-described embodiment, image data of the target person does not necessarily need to be displayed. For example, only the camera icon 311 and the person icon 313 may be displayed on the map data. Even with this modified configuration, the user can easily understand the next destination of the person photographed by the photographing device 10.

In the above-described embodiment, the map data may be two-dimensional map data or three-dimensional map data. The map data may also be a simple line drawing that represents the monitoring area. Even with this modified configuration, the user can easily grasp the installation location of the imaging device 10 that corresponds to the target imaging log.

In the above-described embodiment, the subject of each function in the surveillance camera system 1 is an example, and is not limited to this example. At least some of the functions of the surveillance device 20 may be possessed by an external device such as a cloud server. For example, the external device may receive and store the log list 221 from the surveillance device 20, and transmit the target shooting log to the surveillance device 20 when displaying the shooting log on the surveillance device 20.

In the above-described embodiment, the operation of the surveillance camera system 1 is not limited to the above-described example. The order of the processing steps of the surveillance camera system 1 may be changed as long as there is no contradiction. In addition, some of the processing steps of the surveillance camera system 1 may be omitted.

Another aspect of the present invention may provide a method having processing steps performed in at least one of the surveillance camera system 1, the image capture device 10, and the surveillance device 20. Furthermore, yet another aspect of the present invention may provide a program executed in the image capture device 10 or the surveillance device 20. This program may be provided by being stored in a computer-readable recording medium, or may be provided by downloading via the Internet, etc.

1: Surveillance camera system, 10: Shooting device, 20: Surveillance device, 201: Control unit, 202: Storage unit, 203: Communication unit, 204: Operation unit, 205: Display unit, 211: Acquisition unit, 212: Identification unit, 213: Creation unit, 214: Display control unit

Claims (9)

A surveillance camera system that uses a plurality of imaging devices to capture images of people in a surveillance area,
an identification unit for identifying the person included in the plurality of image data captured by the plurality of image capture devices;
a storage unit that stores map data including locations of the plurality of image capturing devices in the surveillance area, the plurality of image data captured by the plurality of image capturing devices, and chronological log data linking a person identification result included in the image data with the image capturing device that captured the image data;
a display unit that displays image data of the person captured by a first camera included in the plurality of camera devices, and displays a destination of the person on the map data based on an installation location of a second camera that captured an image of the person next to the first camera;
A surveillance camera system comprising: The surveillance camera system according to claim 1 , wherein the display unit indicates the destination of the person by displaying, on the map data, an icon whose movement differs depending on a relationship between the installation location of the first photographing device and the installation location of the second photographing device. The surveillance camera system according to claim 2 , wherein the display unit moves the icon linearly in a direction from a shooting range of the first image capturing device to a shooting range of the second image capturing device. the map data includes first map data for a first monitoring area and second map data for a second monitoring area;
The display unit is
When the installation location of the first photographing device and the installation location of the second photographing device are included in the same map data, the icon moving in a direction corresponding to a positional relationship between the installation locations of the first photographing device and the second photographing device is displayed on the map data;
The surveillance camera system according to claim 2, wherein when the installation location of the first photographing device and the installation location of the second photographing device are included in different map data, the icon moving in a direction according to the positional relationship between the first monitoring area and the second monitoring area is displayed on the map data. The surveillance camera system according to claim 2 , wherein the display unit further changes the movement of the icon displayed depending on the time required from when the person is photographed by the first photographing device to when the person is photographed by the second photographing device. 2. The surveillance camera system of claim 1, wherein the display unit displays the destination of the person using a first icon, and identifiably displays the installation locations of each of the plurality of camera devices using a second icon, and distinguishes between the installation location of the camera device that captured the person and the installation locations of other camera devices that did not capture the person using the second icon. An operation unit that accepts a selection of the log data by a user,
2. The surveillance camera system according to claim 1, wherein the display unit displays the image data of the first photographing device linked to the selected log data, identifies the second photographing device that photographed the person linked to the log data next after the first photographing device, and displays the person's destination on the map data based on the installation location of the identified second photographing device. A computer that uses a plurality of image capturing devices to capture images of people present in a surveillance area,
identifying the person included in the plurality of image data captured by the plurality of image capture devices;
storing map data including locations of the plurality of image capturing devices in the monitoring area, the plurality of image data captured by the plurality of image capturing devices, and time-series log data linking a person identification result included in the image data with the image capturing device that captured the image data;
displaying image data of the person captured by a first camera included in the plurality of camera devices, and displaying a destination of the person on the map data based on an installation location of a second camera that captured an image of the person next to the first camera;
A program for executing. A surveillance camera system that uses a plurality of imaging devices to capture images of people in a surveillance area,
an identification unit for identifying the person included in the plurality of image data captured by the plurality of image capture devices;
a storage unit that stores map data including locations of the plurality of image capture devices in the surveillance area, and chronological log data linking a person identification result included in the image data with the image capture device that captured the image data;
an operation unit that accepts a selection of the log data by a user;
a display unit that displays an icon moving in a straight line from a photographing range of the first photographing device to a photographing range of the second photographing device on the map data, based on an installation location of a first photographing device linked to the selected log data and an installation location of a second photographing device that photographed the person linked to the log data after the first photographing device; and
A surveillance camera system comprising:

Images