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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
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 ImagesSoftware: 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.
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