Tracking assistance device, tracking assistance system and tracking assistance method

A tracking assistance device that displays on a display device, a captured image from each of a plurality of cameras, which is accumulated in image accumulation means, and assists a monitoring person's work of tracking a moving object to be tracked, comprising:

• an evaluation value calculator that calculates an evaluation value representing a level of identity between moving objects, based on tracking information of the moving objects detected from the captured image from each of the plurality of cameras;
• a thumbnail generator that cuts out areas of the moving objects from the captured images and generates a thumbnail image of each of the moving objects;
• a tracking target setter that displays on the display device, a tracking target search screen on which thumbnail images of respective moving objects are displayed as a list, and in response to an operation input by a monitoring person of designating a moving object to be tracked by selecting the thumbnail image, sets the designated moving object as a tracking target;
• a confirmation image presenter that sequentially specifies a camera to take over imaging of the moving object set as the tracking target, by repeating a process of selecting a moving object with a highest evaluation value, from among moving objects detected from captured images of the cameras which are in a cooperation relationship, and displays, on the display device, a tracking target confirmation screen on which a captured image of the moving object with the highest evaluation value is displayed as a confirmation image, for each of the cameras;
• a candidate image presenter that in a case where there is an error in the confirmation image displayed on the tracking target confirmation screen, displays on the display device, a candidate selection screen on which candidate images of respective moving objects having evaluation values lower than the moving object corresponding to the confirmation image are displayed, and allows the monitoring person to select the candidate image corresponding to the moving object designated as the tracking target;
• and
• a tracking information corrector that corrects inter-camera tracking information such that a moving object corresponding to the candidate image selected on the candidate selection screen is associated with the moving object set as the tracking target.

A tracking assistance system that displays on a display device, a captured image from each of a plurality of cameras, which is accumulated in image accumulation means, and assists a monitoring person's work of tracking a moving object to be tracked, comprising:

• the cameras that each captures an image of a monitoring area;
• the display device that displays a captured image from each of the cameras;
• and
• a plurality of information processing apparatuses,
• wherein any one of the plurality of information processing apparatuses includes
• an evaluation value calculator that calculates an evaluation value representing a level of identity between moving objects, based on tracking information of the moving objects detected from the captured image from each of the plurality of cameras;
• a tracking target setter that displays a plurality of the captured images on the display device, and in response to an operation input by the monitoring person designating a moving object to be tracked by using the captured images, sets the designated moving object as a tracking target;
• a confirmation image presenter that sequentially specifies a camera to take over imaging of the moving object set as the tracking target, by repeating a process of selecting a moving object with a highest evaluation value, from among moving objects detected from captured images of the cameras which are in a cooperation relationship, and displays, on the display device, a tracking target confirmation screen on which a captured image of the moving object with the highest evaluation value is displayed as a confirmation image, for each of the cameras;
• a thumbnail generator that cuts out areas of the moving objects from the captured images and generates a thumbnail image of each of the moving objects;
• a candidate image presenter that in a case where there is an error in the confirmation image displayed on the tracking target confirmation screen, displays on the display device, a candidate selection screen on which the thumbnail images of respective moving objects having evaluation values lower than the moving object corresponding to the confirmation image are listed and displayed as a candidate image, and allows the monitoring person to select the candidate image corresponding to the moving object designated as the tracking target;
• and
• a tracking information corrector that corrects inter-camera tracking information such that a moving object corresponding to the candidate image selected on the candidate selection screen is associated with the moving object set as the tracking target.

A tracking assistance system that displays on a display device, a captured image from each of a plurality of cameras, which is accumulated in image accumulation means, and assists a monitoring person's work of tracking a moving object to be tracked, comprising:

• the cameras that each captures an image of a monitoring area;
• the display device that displays a captured image from each of the cameras;
• and
• a plurality of information processing apparatuses,
• wherein any one of the plurality of information processing apparatuses includes
• an evaluation value calculator that calculates an evaluation value representing a level of identity between moving objects, based on tracking information of the moving objects detected from the captured image from each of the plurality of cameras;
• a thumbnail generator that cuts out areas of the moving objects from the captured images and generates a thumbnail image of each of the moving objects;
• a tracking target setter that displays on the display device, a tracking target search screen in which thumbnail images of respective moving objects are displayed as a list, and in response to an operation input by a monitoring person of designating a moving object to be tracked by selecting the thumbnail image, sets the designated moving object as a tracking target;
• a confirmation image presenter that sequentially specifies a camera to take over imaging of the moving object set as the tracking target, by repeating a process of selecting a moving object with a highest evaluation value, from among moving objects detected from captured images of the cameras which are in a cooperation relationship, and displays, on the display device, a tracking target confirmation screen on which a captured image of the moving object with the highest evaluation value is displayed as a confirmation image, for each of the cameras;
• a candidate image presenter that in a case where there is an error in the confirmation image displayed on the tracking target confirmation screen, displays on the display device, a candidate selection screen on which candidate images of respective moving objects having evaluation values lower than the moving object corresponding to the confirmation image are displayed, and allows the monitoring person to select the candidate image corresponding to the moving object designated as the tracking target;
• and
• a tracking information corrector that corrects inter-camera tracking information such that a moving object corresponding to the candidate image selected on the candidate selection screen is associated with the moving object set as the tracking target.

A tracking assistance method for causing an information processing apparatus to perform a process of displaying on a display device, a captured image from each of a plurality of cameras, which is accumulated in image accumulation means, and assisting a monitoring person's work of tracking a moving object to be tracked, comprising:

• calculating an evaluation value representing a level of identity between moving objects, based on tracking information of the moving objects detected from the captured image from each of the plurality of cameras;
• displaying a plurality of the captured images on the display device, and in response to an operation input by the monitoring person designating a moving object to be tracked by using the captured images, setting the designated moving object as a tracking target;
• sequentially specifying a camera to take over imaging of the moving object set as the tracking target, by repeating a process of selecting a moving object with a highest evaluation value, from among moving objects detected from captured images of the cameras which are in a cooperation relationship, and displaying, on the display device, a tracking target confirmation screen on which a captured image of the moving object with the highest evaluation value is displayed as a confirmation image, for each of the cameras;
• cutting out an area of the moving object from the captured image and generating a thumbnail image of each of the moving objects;
• in a case where there is an error in the confirmation image displayed on the tracking target confirmation screen, displaying on the display device, a candidate selection screen on which the thumbnail images of respective moving objects having evaluation values lower than the moving object corresponding to the confirmation image are listed and displayed as a candidate image, and allowing the monitoring person to select the candidate image corresponding to the moving object designated as the tracking target;
• and
• correcting inter-camera tracking information such that a moving object corresponding to the candidate image selected on the candidate selection screen is associated with the moving object set as the tracking target.

A tracking assistance method for causing an information processing apparatus to perform a process of displaying on a display device, a captured image from each of a plurality of cameras, which is accumulated in image accumulation means, and assisting a monitoring person's work of tracking a moving object to be tracked, comprising:

• calculating an evaluation value representing a level of identity between moving objects, based on tracking information of the moving objects detected from the captured image from each of the plurality of cameras;
• cutting out an area of the moving object from the captured image and generating a thumbnail image of each of the moving objects;
• displaying on the display device, a tracking target search screen on which thumbnail images of respective moving objects are displayed as a list, and in response to an operation input by a monitoring person of designating a moving object to be tracked by selecting the thumbnail image, setting the designated moving object as a tracking target;
• sequentially specifying a camera to take over imaging of the moving object set as the tracking target, by repeating a process of selecting a moving object with a highest evaluation value, from among moving objects detected from captured images of the cameras which are in a cooperation relationship, and displaying, on the display device, a tracking target confirmation screen on which a captured image of the moving object with the highest evaluation value is displayed as a confirmation image, for each of the cameras;
• in a case where there is an error in the confirmation image displayed on the tracking target confirmation screen, displaying on the display device, a candidate selection screen on which candidate images of respective moving objects having evaluation values lower than the moving object corresponding to the confirmation image are displayed, and allowing the monitoring person to select the candidate image corresponding to the moving object designated as the tracking target;
• and
• correcting inter-camera tracking information such that a moving object corresponding to the candidate image selected on the candidate selection screen is associated with the moving object set as the tracking target.