| 摘要 |
PROBLEM TO BE SOLVED: To enhance accuracy of tracking performance of a monitoring object in a monitoring area including a direct advancing area and a cornering area.SOLUTION: In a direct advancing area where the direction of movement of a mobile object is hard to vary in a monitoring area, a plurality of mobile objects whose time change in a relative positional relation between the mobile objects is less than a prescribed reference value are tracked as a group. In a cornering area where the direction of movement of the mobile object is easy to vary in the monitoring area, a plurality of mobile objects whose time change in a relative positional relation of the mobile object is less than a prescribed reference value are tracked as a group.SELECTED DRAWING: Figure 1 |
