1. An object detection system for detecting an object, wherein the system executes coordinated processing on detected information, the system comprising: a first electromagnetic wave detection means; and a second electromagnetic wave detection means, wherein the first electromagnetic wave detection means and the second electromagnetic wave detection means have different sensitive wavelengths, wherein the first electromagnetic wave detection means picks up a first image of an object being monitored as a two-dimensional; image, the second electronic wave detection means picks up a second image of the object being monitored as a two-dimensional image, and the first image and the second image include essentially the same object being monitored, wherein the second electronic wave detection means determines an area range of the object, the area range being determined from a position of the object in the second image, wherein the second electronic wave detection means sends area information to the first electronic wave detection means, the area information including the area range and a portion of the second image included within the area range, wherein the first electromagnetic wave detection means receives the area range information from the second electronic wave detection means, and uses the area range information to perform image processing, and wherein, in the two-dimensional image picked up by the first electromagnetic wave detection means, image processing is performed in the area range to detect the object.