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 collected geospatial image having at least one geospatial collection value associated therewith, 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 based upon synthetically positioning a virtual geospatial image sensor within a geospatial scene model based upon the at least one geospatial collection value; and a change detector cooperating with said image processor for detecting a change between the collected geospatial image and the reference geospatial image.