1. A video surveillance system which monitors a moving object as a tracking target by way of a plurality of cameras in a surveillance zone, said system comprising: a camera section that includes a first camera and a plurality of second cameras; a detecting section that detects a moving direction of the tracking target based on a first image having the tracking target, the first image shot with the first camera; a storage section that stores map information in the surveillance zone and camera information including location information of the camera section and shooting range information of the camera section; a selection section that selects from the second cameras a camera located in the moving direction of the tracking target with respect to the first camera based on moving direction information of the tracking target, the map information and the camera information; a composition section that combines the first image and a second image shot with the selected camera to generate a display image in which the first image and the second image are arranged at positions corresponding to a positioning relation between the first camera and the selected camera in the map information based on the map information and the camera information; and a display section that displays the display image.