1983. 
ssifica- 
> Engi- 
pp. 55 
y W. 
tispec- 
of SyS- 
temote 
ymput- 
IEEE 
netics, 
ssifica- 
in high 
>cogni- 
xiang, 
on and 
of the 
Q-37- 
pments 
Remote 
35. 
A GEOCODED DATABASE FOR 
LANDCLASSIFICATION OF ERS-1 DATA 
Karlheinz Knipp 
Institute for Photogrammetry and Engineering Surveys 
University of Hannover, FRG 
ISPRS Commission III 
Abstract : 
A geocoded database has been designed to support investigations on 
geometric correction and classification of ERS-1 imagery. The 
database' conception is that of a "meta-database", i.e. it manages 
information about objects‘ rather than storing the objects 
themselves. 
Object are project-relevant spatial data which form different 
classes like geocoded images (SAR, different scanners ), training- 
areas for classification and classification results. 
Routines for the information-retrieval as well as for meta-data- 
editing ( new, edit, delete entry ) have been developed. Another 
module for the graphical selection of object exists, which can be 
used from inside the database as well as from other project- 
applications. 
A layer is implemented around the database which may be expanded to 
a project-informationsystem ( IMC : Integrated Meta-database in 
CALA!' 3. 
KEY WORDS : Classification, Data Base, SAR 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
are titled : Determination of 
1. INTRODUCTION land-application data on the 
basis of geometric correction, 
In July 1992 ERS-1 (European automatic correlation and 
Remote Sensing Satellite) was geocoded database (Fig. 1.1). 
successfully launched into 
orbit. One instrument on board 
is AMI (Active Microwave Project 
Instrumentation), designed 
either to operate in the SAR MDB 
(Synthetic Aperature Radar) - or 
scatterometer - mode. The SAR- 
data provide useful information GEOC. CLASS. 
for various applications, p.e. 
earth resource management. The 
project CALA (Calibration and 
Land Application of ERS-1 SAR 
Data) in general deals with Figure 1.1 : Project - scheme 
various aspects of SAR-sensing : : 
calibration, geocoding, The techniques used for 
forestry, agriculture, geometric correction are 
hydrology, etc.. The Institute described in [Sasse, 1992]. This 
of Photogrammetry and text deals with the design and 
Engineering Surveys  (IPI) is implementation of the database. 
geocoding and classification database and meta-database. 
part of CALA. The investigations 
  
! CALA : Calibration and Land Applications of ERS-1 data 
439