1. A method for automatically updating a graphical information system (GIS) type database using aerial imagery, the method comprising: processing a new image to identify at least one target region therewithin; analyzing said target region to determine image invariant moments thereof; using feature vector data to generate a template of a target feature from an old image; analyzing said template to generate image invariant moments thereof; and comparing said image invariant moments of said target region with said image invariant moments of said template to identify a feature change between said target region and said template.