International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part Bl. Istanbul 2004 
- 3 for Manosque (France), Montmirail (France) and Rasht 
(Iran); 
- 5 for Barcelona (Spain); 
- 7 for Chiemsee (Germany) 
Here is the list of Principal Investigators (PIs) and Co 
Investigators (Cols) selected for each test site. For other 
investigators working with these PIs and Cols please refer to 
other papers presented in HRS sessions of this Congress 
listed at the end of this paper. 
TS 1: Montmirail (France) 
PI: Sylvain Airault (Institut Géographique National, France) 
Col-1: Ramanathan Nandakumar (Satellite Photogrammetry 
& Digital Cartography Division, Space Applications Centre, 
ISRO, India) 
Col-2: Yun Zhang (Department of Geodesy and Geomatics 
Engineering, University of New Breunswick, Canada) 
TS 2: Merowe (Sudan) 
PI: Rolf Becker (MAPS Geosystems, UAE) 
Col-1: Isabelle Couloigner (Department of Geomatics 
Engineering, Faculty of Engineering, Uniersity of Calgary, 
Canada) 
TS 3: Liége (Belgium) 
PI: Yves Cornet (Geomatics Unit, Department of Geography, 
University of Liége, Belgium) 
Col-1: Isabelle Couloigner (Department of Geomatics 
Engineering, Faculty of Engineering, Uniersity of Calgary, 
Canada) 
Col-2: Michel Roux (Departement TSI, ENST, France) 
TS 4: Melbourne (Australia) 
PI: Clive Fraser (Department of Geomatics, University of 
Melbourne, Australia) 
Col-1: Ramanathan Nandakumar (Satellite Photogrammetry 
& Digital Cartography Division, Space Applications Centre, 
ISRO, India) 
TS 5: Aix-en-Provence (France) 
PI: lan Dowman (Department of Geomatic Engineering, 
University College London, UK) 
Col-1: Michel Roux (Departement TSI, ENST, France) 
TS 7: Rasht (Iran) 
PI : Farhad Kianifar (National Cartographic Center of Iran) 
Col-1: Yun Zhang (Department of Geodesy and Geomatics 
Engineering, University of New Breunswick, Canada) 
Col-2: Mikhail Fomtchenko (Sovinformsputnik, Russia) 
TS 8: Barcelona (Spain) 
PI: Wolfgang Kornus (Institut Cartogräfic de Cataluña, 
Spain) 
Col-1: Ian Dowman (Department of Geomatic Engineering, 
University College London, UK) 
Col-2: Peter Reinartz (DLR, Germany) 
Col-3: Urbano Fra Paleo (Department of Geography and 
Spatial Planning, University of Extremadura, Spain) 
Col-4: Hannes Raggam (Joanneum Research, Institute of 
‘Digital Image Processing, Austria) 
TS 9: Bavaria (Germany) 
PI: Peter Reinartz (DLR, Germany) 
Col-1: Daniela Poli (Institute of Geodesy and 
Photogrammetry, Swiss Federal Institute of Technology, 
ETH Zurich, Switzerland) 
Col-2: Karsten Jacobsen (Institute of Photogrammetry and 
Geolnformation, University of Hannover, Germany) 
Col-3: Jorge Torres (Division de Fisica Aplicada, CICESE, 
Mexico) 
Col-4: Romuald Kaczynski (Institute of Geodesy and 
Cartography, Poland) 
Col-5: Alexander Suchkov (Geoinformation Agency — 
Innoter, Russia) 
Col-6: Konstantin Eremeev (Geo-Nadir, Russia) 
TS 10: Manosque (France) 
PI: Véronique Rudowski (Institut Géographique National, 
France) 
Col-1: Maria Tsakiri-Strati (Department of Cadastre, 
Photogrammetry & Cartography, Aristotle University of 
Thessaloniki AUTH, Greece) 
It can be noted that there is no TS 6, as this pre-selected test 
area on Gujarat in India has not been confirmed, as for TS 11 
on Mont-Blanc in France. 
12. EXPERIMENTS ARE STILL IN PROGRESS 
According to the initial schedule all results should have been 
completed and sent to the HRS-SAP Secretariat by 31 
December 2003 in order to leave some time for analysis and 
synthesis. Only few results were available by this date and 
the deadline has been postponed until 29 February 2004. 
Up to now (15 April 2004) only 13 reports and DEM have 
been provided, some of them presented as preliminary 
reports, to be completed. 
Therefore it is difficult to give in this paper, as expected, an 
overview of the results. Most of the investigators should 
present their results during dedicated sessions (3 Technical 
Sessions and 1 Poster Session) at the ISPRS Congress and 
then more results should be available. 
Nevertheless it can be noticed that one test site has been 
particularly appreciated and studied: this is the Bavarian area 
(TS 9) on which all 7 investigators have provided reports and 
DEMs. Comparison of these results will be presented by 
Véronique Rudowski in this Congress (Rudowski, 2004 ) 
It can be noticed that, as different orientation methods, 
matching processes and quality assessments have been used, 
comparisons should be done carefully. 
Several orientation models have been used, with more or less 
unknown parameters. Daniela Poli has found that the use of 
Rational Polynomial Coefficients could lead to slightly better 
results than using only a Rigorous Sensor Model (Poli, 2004) 
Different matching processes, with or without epipolar 
resampling have been used. Jorge Torres (Torres, 2004), as 
among others, has used a pyramidal (multi-resolution) 
approach. 
Peter Reinartz has made an interesting comparison of results 
with and without using Ground Control Points. Without any 
GCP, using only ancillary data an absolute mean height 
accuracy of 5 to 9 meters could be achieved with a standard 
deviation of 2 to 4 meters on matched points and of 4 to 7 
meters for interpolated DEM. With only few GCPs the 
absolute accuracy can be improved to 1-3m. (Reinartz, 2004)