A display image formation device enables, in an intuitive manner, designation of a location which the user wishes to see when multiple panoramic images obtained by multiple panoramic cameras are present, and enables display of the image for a designated site in a suitable state. One panoramic camera is selected from multiple panoramic cameras on the basis of the positional relationship between a designated position on a planar map and the multiple panoramic cameras. An extracted image region, which is extracted from the image photographed by the selected panoramic camera, is determined. A display image is generated such that the extracted image is arranged on the planar map.