INTERACTIVE ANALYSIS OF DIGITAL TERRAIN ELEVATION AND SURFACE-FEATURE DATA-BASES

The Defense Mapping Agency (DMA) produces digital data bases that describe the physical appearance of the surface of the earth. A dramatic impact has been made in the ability to analyze these digital data bases by applying state-of-the-art digital image technology processing and display concepts. For purposes of quality control and data base applicability investigations, DMA has developed the Sensor Image Simulator (SIS), a very high speed data base edit station and static scene simulator that allows for interactive query and manipulation of individual fetures in the data base displays and/or simulated sensor scenes to determine the corresponding data base elements responsible for the simulated features.