Monitoring device, monitoring system, and monitoring method

A monitoring system that generates a monitoring moving image in which a sub-image relating to a target area set on a monitored moving image is superimposed on the monitored moving image, and displays the monitoring moving image on a display device, the system comprising:

• a camera that images the monitoring area;
• a plurality of information processing devices;
• and
• a display that displays the monitoring moving image,
• wherein any of the plurality of information processing devices includes
• a target area setter that sets the target area on the monitored moving image according to a user's operation input;
• a stay information acquirer that observes a staying situation of a moving object appearing on the monitored moving image and acquires stay information indicating the staying situation of the moving object;
• a sub-image generator that generates the sub-image;
• a sub-image arrangement controller that controls an arrangement position of the sub-image on the monitored moving image based on the stay information acquired by the stay information acquirer;
• and
• an output controller that generates the monitoring moving image in which the sub-image is composed on the monitored moving image based on the arrangement position of the sub-image determined by the sub-image arrangement controller and outputs the monitoring moving image on the display,
• wherein the stay information includes information relating to a number-of-stays, which is the number of moving objects staying in the observation area set on the monitored moving image, and a time-of-stays, which is a time in which the moving object stays in the observation area.

A monitoring method in which an information processing device is caused to generate a monitoring moving image in which a sub-image relating to a target area set on a monitored moving image is superimposed on the monitored moving image, and to display the monitoring moving image on a display, the method comprising:

• setting the target area on the monitored moving image according to a user's operation input;
• observing a staying situation of a moving object appearing on the monitored moving image and acquiring stay information indicating the staying situation of the moving object;
• generating the sub-image;
• controlling an arrangement position of the sub-image on the monitored moving image based on the stay information;
• and
• generating the monitoring moving image in which the sub-image is composed on the monitored moving image based on the arrangement position of the determined sub-image and outputting the monitoring moving image on the display,
• wherein the stay information includes information relating to a number-of-stays, which is the number of moving objects staying in the observation area set on the monitored moving image, and a time-of-stays, which is a time in which the moving object stays in the observation area.