Accession Number : ADA126829


Title :   Interactive Image Analysis System Design,


Corporate Author : GENERAL ELECTRIC CO LANHAM MD SPACE SYSTEMS DIV


Personal Author(s) : Heydt,Howard L ; O'Connell,Richard A ; Wescott,Thomas F


Full Text : http://www.dtic.mil/get-tr-doc/pdf?AD=ADA126829


Report Date : Dec 1982


Pagination or Media Count : 61


Abstract : This report describes a design for an interactive image analysis system (IIAS), which implements terrain data extraction techniques. The design employs commercially available, state of the art minicomputers and image display devices with proven software to achieve a cost effective, reliable image analysis system. Additionally, the system is fully capable of supporting many generic types of image analysis and data processing, and is modularly expandable to accommodate future processing requirements. The primary requirements for the IIAS were derived from the terrain data extraction process. This process accepts digitized aerial photography, mosaics several aerial photographs into one map size image, registers the image to a standard map, and classifies terrain characteristics such as forest canopy coverage, average number of stems per hectare, and average stem diameter. The output of the process is a set of polygons that define classified regions on the map. The polygons are output on computer compatible tapes (CCTs) in a format that is compatible with ETL's Terrain Analysis Synthesis System (TASS). In addition to the terrain data extraction requirements, flexibility and expansion potential were key design criteria.


Descriptors :   *IMAGE PROCESSING , *SYSTEMS ENGINEERING , *TERRAIN , *DATA ACQUISITION , COMPUTER PROGRAMS , REQUIREMENTS , COST EFFECTIVENESS , INTERACTIONS , STATE OF THE ART , TOPOGRAPHY , EXTRACTION , MAPPING , PREPROCESSING , MINICOMPUTERS , POLYGONS , AERIAL PHOTOGRAPHY


Subject Categories : Administration and Management
      Computer Programming and Software
      Computer Hardware
      Optics


Distribution Statement : APPROVED FOR PUBLIC RELEASE