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Roeland de Kok 
The main advantage is that the object-oriented classification enables the export of Raster GIS layers established 
with attribute tables that can be filled with any kind of object information like class, area or texture. In the case 
of the classification of the SPOT images, this could provide the base for a very efficient monitoring system. Any 
new image data can be segmented, considering the information of the first classification. By doing so, no entirely 
new classification has to be made but instead the existing objects from the first classification are used with the 
new data. Any strong differences of one new object from the pixel values of the old one would indicate a change 
in this segment. This could simplify the whole working process by similarly making it more stable. 
Concerning the change detection concept with the aerial photos it can be said, that with conventional 
classification processes it would be much harder if not impossible to realize. Using the protocol mode that is 
implemented in eCognition could make the automation of the biggest part of the process possible. 
Not only in Tierra del Fuego archives with vast amounts of aerial photos can be found. This tool would make the 
evaluation of this data possible at a low cost and provide precious information. 
ACKNOWLEDGEMENTS 
Grateful acknowledgements are extended to my academic supervisors supervisors from the Chair of Land Use 
Planning and Nature Conservation of the Technical University of Munich Roeland deKok, Alfred Buck, Dr. 
Thomas Schneider, Prof. Ullrich Ammer for advice, support and encouragement. The thoughtful input and 
suggestions of Dr. Martin Baatz of Delphi2 Creative Technologies are also very much appreciated. Furthermore 
I want to gratefully thank the staff of the Secretaria de Recursos Naturales y Ambiente Humano, Direccion de 
Bosques of Ushuaia, especially Leonardo Collado and Ricardo Hlopec, who made the field work an 
unforgettable experience. 
REFERENCES 
Jose O. Bava, 1997. “Okologische und waldbauliche Beiträge zur Überführung von Urwäldern der Baumart 
Nothofagus Pumilio (POEPP. ET ENDL) KRASSER in Wirtschaftswald im Argentinischen Teil Feuerlands“ 
Francisco A. Carabelli, 1999. “Entwicklung von Leitbildern für eine nachhaltige Landnutzung in Feuerland, 
Argentinien" 
Peter Frederiksen, 1988. “Soils of Tierra del Fuego — A Satellite-based Land Survey Approach“ 
Gerd Hildebrandt, 1996 "Fernerkundung und Luftbildmessung — Für Forstwirtschaft, Vegetationskartierung und 
Landschaftsókologie" 
Thomas M. Lillesand, Ralph W.Kiefer, 1994. “Remote Sensing and Image Interpretation” 
Andreas Mayer, Bernhard Mechler, Andreas Schlindwein, Rainer Wolke, 1993. “Fuzzy Logic - Einfiihrung und 
Leitfaden zur praktischen Anwendung" 
PCI Geomatics, 1998. “Using PCI Software — Volume 1“ 
John A. Richards, Xiuping Jia 1998. “Remote Sensing Digital Image Analysis” 
Th. Schneider, S. Lichtenwald, U. Ammer, 1996. “Woody Biomass Change Detection in the Tana Lake District 
of Goam, Ethopia — Study Based on MOMS-02 Mode 3 Data from 1993 Completed with B&W Aerial 
Photographs from 1958 and 1982 
Descriptions of the segmentation and classification functionality of the software eCognition were partly taken 
from the eCognition beta version handbook and partly oral information received by the software developers of 
Delphi2 Creative Technologies. 
  
International Archives of Photogrammetry and Remote Sensing. Vol. XXXIII, Part B3. Amsterdam 2000. 221