1. An image change detecting system to detect a change in a collected geospatial image from a geospatial image sensor carried by an airborne platform, the image change detecting system comprising: a geospatial scene model database; an image processor cooperating with said geospatial scene model database for generating a reference geospatial image corresponding to the collected geospatial image; and a change detector cooperating with said image processor for detecting a change between the collected geospatial image and the reference geospatial image.