Information such as a camera layout for representation on a map could not be entered while an image of a camera is confirmed on a display. In order to solve this problem, the present invention provides generating means for generating a map having a symbol indicating an installed position of a camera, receiving means for receiving image data corresponding to an image photographed by the camera associated, when information regarding the camera including the position of camera is associated with the map, and output means for outputting the received image data onto the display.