IMPACT ON LANDUSE CLASSIFICATION BY GEOMETRICAL PARAMETERS 
Heiko Jacobs 
Hans Peter-Bahr 
Karlsruhe University 
Photogrammetry and Remote Sensing 
Englerstr. 7 
Karlsruhe, Germany 
ISPRS Commission VII / Working Group 3 
ABSTRACT 
Landuse classification is not yet feasible in a general, satisfactory way due to restrictions by many sources. 
This paper focuses particularly geometric conditions which influences the final landuse classification result 
for Landsat- TM data: 
Preprocessing is a somewhat "black box" and often produces data of bad geometric quality which affects the 
following procedures. 
Minor geometric fidelity of a Landsat scene - e.g. produced by bad control or by insufficient correction for 
terrain elevations - will necessarily reduce the quality of the classification result. Using several image sets for 
one scene, individual low noise may generate big errors for the final result. In practise this may happen easily, 
since landuse classification generally makes sense only in connection with additional georeferenced data. 
The individual effects of different geometrical parameters are shown and resulting examples for landuse 
classification are displayed. 
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