Compressing interpreted satellite imagery for geographic information systems applications over extensive regions

Pecora VII Symposium


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Image processing systems (IPS) and techniques effectively transform satellite imagery into data for input into a spatial database. Geographic information systems (GIS), consisting of graphic input and spatial database management subsystems, are capable of processing digital map and map overlay data to build and manipulate a spatial database. These systems can be successfully integrated to create a successful spatial data handling capability provided certain obstacle are understood and overcome.


One of the obstacles faced by all spatial data handling activities involving the extensive regions is the tremendous volume of areal data. Raster formats for representing areal data provide a means of easily integrating IPS and GIS. A compressed raster format has been developed for handling map/image data which greatly reduce the volume of spatial data. By using compressed data strings as basic spatial entities for areal data sets, many complex data processing operations can be simplified.


A second set of related problems deals with how this format and other representations of spatial entities, such as vector formats for point and line features, can be interrelated for manipulation, retrieval, and analysis by a spatial database management subsystem. Methods have been developed for interrelating areal data sets in the raster format with point and line data in a vector format and these are described.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Compressing interpreted satellite imagery for geographic information systems applications over extensive regions
Series title Pecora VII Symposium
Year Published 1981
Language English
Publisher American Society of Photogrammetry
Publisher location Falls Church, VA
Description 18 p.
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Pecora VII Symposium
First page 341
Last page 358
Online Only (Y/N) N
Additional Online Files (Y/N) N
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