REPORT OF THE CZECH SOCIETY FOR PHOTOGRAMMETRY AND REMOTE 
SENSING ABOUT ITS ACTIVITIES IN SEVEN COMMISSIONS OF ISPRS DURING 
2000-2004 
Lena Halounovä 
Remote Sensing Laboratory, Faculty of Civil Engineering, Czech Technical University Prague 
Thakurova 7, 166 29 Prague 6, Czech Republic, halounov@fsv.cvut.ez 
ABSTRACT: 
Czechoslovakia was a member of the International Society for photogrammetry and Remote Sensing in 1930 - 1986. After creating 
two new countries — Czech Republic and Slovakia, the Czechoslovak Society for Photogrammetry and Remote Sensing was splitted 
between two parts - the Czech one and the Slovak one. The Czech Society for Photogrammetry and Remote Sensing has been a 
continuing member since 1996. The division was performed at the XVIII congress of ISPRS in Vienna. 
1. COMMSSION I: SENSORS, PLATFORMS AND 
IMAGERY 
After the last ISPRS Congress in Amsterdam an important 
increase of measuring techniques is evident in the private 
sector of photogrammetry. Companies offering aerial survey 
are newly equipped with cameras of 305 mm focus and with 
new RMK TOP cameras. The main reason is to improve angle 
conditions of orthophoto map productions. Recording systems 
and systems determining projecting centres and orientation 
angles (POS/AV'M 310, CCNS 4), SONY DCR TRV900E 
digital videocameras, and KODAK DCS 330 digital cameras 
including Hasselblad 550 s H25 cameras are now used in 
private companies. Universities own small and medium size 
digital cameras for research in precision farming, in forestry 
and in other applications. These are various cameras, e.g 
Rolleimetric and Duncan. Universities have bought several 
small airplane and helicopter models as carriers. Aerial 
laserscan was rented for a part of 2002 year and practical 
experiences were gained for measurement and final 
applications of DEM and DTM. Kodak and AGFA films are 
used in the Czech Republic. 80 - 85 per cent of aerial 
photography is performed on colour films. The whole 
production of all producers is about 27 000 photographs of 23 
x 23 em size per year. National reference calibration laboratory 
for camera systems is being built by the Institute of Geodesy 
and Cartography at the Technical University Brno. It will be 
used for aerial small and medium size camera calibrations. 
There are about 20 experts working and being interested in this 
sphere. 
2. COMMISSION II: SYSTEMS FOR DATA 
PROCESSING, ANALYSIS AND REPRESENTATION 
Digital photogrammetric stations passed through important 
progress even though not so stormy as in the previous period. 
The final transition from Unix platform to Windows platform 
seems to be a general phenomenon of these years. Simple 
systems using any PC with appropriate parameters play more 
important role in comparison with complex and more 
expensive systems. Easy technical adaptations of these 
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computers allow their change into digital photogrammetric 
stations. 
Several photogrammetric activities have been automated, 
mainly the aerotriangulation and DTM/DEM data collection 
where tie points, DTM and DEM points are automatically 
generated by image correlation. Automatic edge detection of 
topographic elements is partly solved by detecting signalized 
ground control points in aerotriangulation, and by roof shape 
detection. 
New systems for georeferencing of projection centres POS/A V 
310, CCNS 4 allow further simplification and definition of 
external orientation parameters 
Mobile GPS navigational systems and mobile GIS applications 
are more and more used mainly in agriculture, forestry and 
utility management. They allow to detect user's position, his 
movement or other parameters on the background of raster or 
vector data. 
The important progress in 3D laser scanning initiated software 
being able to apply already processed data and software being 
able to process raw laser scanner data. Raw data processing 
systems integrate lasers canner measurements with digital 
photographs of, e.g. measured objects. Their goal is to achieve 
the maximum system effectiveness. 
Important change can be found in data storage. Database 
systems are used instead of classical data storage. Database 
systems allow various data type and data source integration 
into one system for data presentation. It is important at the 
moment when data being from different coordinate systems 
have to be used. The Internet starts to be a new way for data 
presentation, data ordering and sale. There are more companies 
having their business activities in this form. 
3. COMMISSION III: THEORY AND ALGORITHMS 
The research in this area is performed at universities, at the 
Academy of Science, and in private companies. Computer 
Vision Laboratory of the Electrical Engineering Faculty at the 
Czech Technical University is one of the most active. The 
laboratory develops new algorithms and techniques for object 
recognition, and correlation techniques for orientation 
processes. The hyperspectral data and multisensor data are 
processed from algorithm view and from practical applicability 
view. Radar data and their everyday practical applications are