Geographical Information System Improving
LIST OF FIGURES
INTRODUCTION
CHARACTERISTICS OF GEOGRAPHIC FEATURES
Linear Features
:
Roads,
Railways
and
Rivers
Surface Areas
:
Wide Rivers and Water Areas
,
Urban Areas
EXTRACTION OF LINEAR STRUCTURES
Detection Operators
Tracking Operators
Aggregation Operators
Application: Geographic Features Extraction by use of Satellite Images and Vectored Imprecise Databases
EXTRACTION OF SURFACE ELEMENTS
Theory
:
Thresholding
,
Region Growing
Application: Detection of Water Areas
EXTRACTION OF URBAN AREAS
Edge Points Density Method
Urban Areas Extraction with Map Knowledge
Extraction of Urban Areas by Cooperation of Operators
BIBLIOGRAPHY
IRIT-UPS
