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Track: New Technology and Technology Integration

Phil Austin
Positive Systems, Inc.
250 Second Street E
Whitefish, MT 59937


Telephone: 406-862-7745
Fax: 406-862-7759
E-mail: paustin@possys.com



Choosing Digital Imagery for Today's GIS and Remote Sensing Applications-Sorting the Fact from the Fiction  Paper Text

Defining Issue: GIS users are faced with a bewildering array of sources of imagery, with confusing and often contradictory specifications. GIS Solution: This paper will examine the role of digital imagery within a GIS, beginning with the question "Why use images?" and follow with a full discussion of the factors that should be taken into account before purchase including - Information Content - Ease of Integration with Existing Data - Timeliness of Delivery - Ease of Future Updates-Innovative Spatial Processing - Cost Effectiveness - Imagery Specifications in a Digital Realm - Past, Present, and Future Sources of Digital Images Software: The importance of imagery to GIS users has clearly been recognized by Esri, with vastly improved image import, manipulation, and viewing functions in each successive release of ArcInfo and ArcView.



Copyright 1997 Environmental Systems Research Institute