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- Digital Landscape Model for Europe: to derive and link
data from digital and analogue spaceborne recordings,
in order to compile a digital landscape model.
- Updating of complex digital topographic databases: to
analyse the problems inherent in updating complex
digital topographic databases, and to identify and
recommend effective procedures to ensure that
database currency and maximum functionality is
maintained.
- Quality model: to develop an application independent
quality model, and to define quality concepts and
parameters to be used.
- Accuracy of digital terrain models for civil engineering
purposes: to define rules to indicate parameters of the
source data of a DTM, to ensure economical and
efficient data collection.
- Geocoding of ERS-1 SAR data: to compare methods of
geocoding ERS-1 SAR data and to evaluate the use of
such data for mapping.
* Research projects which have been started during the
reporting period:
- Large scale mapping specifications: to compile and
compare information on methods for large scale map
compilation; and to analyse existing specifications for
large scale technical and cadastral mapping.
- Analyses of photoscanners: to elaborate criteria for the
analysis of photoscanners; to perform a standard test,
and to derive recommendations for standard test
material.
- Feature extraction from high resolution space imagery:
to develop a methodology, and to derive standard
procedures for the assessment of algorithms for feature
extraction from high resolution space imagery.
- Automatic generalisation: to develop evaluation criteria
and measurement tools; to evaluate commercial software
packages for automatic generalisation, and some GIS
tools.
- DEM quality: to identify issues involved with DEM
accuracy and choice of parameters; to analyse different
DEM accuracy models; and to propose operational
strategies to enable creation of DEM's to fulfil specified
accuracy requirements.
- 3-D GIS: to analyse 3D-GIS user and producer
requirements; to investigate some 3D-GIS applications
and data integration problems; and to compare cost-
efficiency of different data acquisition techniques.
- Development of specifications for a digital camera: to
develop requirements for the development of a digital
camera, in cooperation with users and industry.
- Airborne kinematic GPS positioning: to investigate the
performance of new systems (new dual frequency
receiver hardware and new software which has been
improved, specially for fast ambiguity solutions), related
to obtaining continuous and absolute GPS trajectories.
- Application of digital photogrammetric workstations: to
analyse experiences with digital photogrammetric
workstations in practice.
- Automatic generation of DEM: to compare the
performance of methods and software packages for
automatic DEM generation among themselves, and
103
against conventional analytical DEM generation.; and to
demonstrate the potentials of this technology in practice.
4.3 OEEPE Publications
Since 1992, the following research reports have been
published in the framework of the OEEPE Official
Publications:
- no. 27; Proceedings of the ISPRS and OEEPE joint
workshop on updating digital data by photogrammetric
methods; by P.R.T. Newby and C.N. Thompson, 1992.
no 28; Proceedings of the OEEPE workshop on data
quality in Land Information systems; by L.A. Koen and O.
Kólbl, 1992.
- no 29; Empirical results of GPS-supported block
triangulation; by K. Torlegard, 1994.
- no.30 ; Updating of complex digital databases; by M.
Brand, 1995.
In addition, the following research reports will be published
in the framework of the OEEPE Official Publications, before
the XVIII ISPRS Congress:
- Aerial triangulation using digitized images; by T.
Sarjakoski and J. Jaakkola, 1996.
- Geocoding of ERS-1 SAR data; by I. Dowman, 1996.
- Proceedings of the OEEPE workshop on the application
of digital photogrammetric workstations; by O. Kélbl,
1996.
Also, the following OEEPE Official Publications are
scheduled for early 1997:
- Digital Landscape Model for Europe; by B.S. Schulz.
- Accuracy of digital terrain models for civil engineering
purposes; by A. Flotron.
- Large scale mapping specifications; by S. Dequal and
L.A. Koen.
Finally, it is worth to mention here that the OEEPE has
started disseminating a bi-annual Newsletter in 1995, and
is planning to continue to do so in the future.
5. ORGANISATIONAL CHANGES
The changes in the OEEPE research perspective, as
reported in the preceding paragraph, have lead to changes
in the formulation of the OEEPE mission, and in the working
procedures of the organisation, including its relationships
with other international organisations, during the reporting
period (1992-1996).
5.1 Changed mission
The Statutes of the OEEPE have been amended in 1994,
to better reflect the new OEEPE research perspective; the
mission of the organisation reads now as follows: "The aim
of the OEEPE is to improve and promote methods,
performance and application of Photogrammetry by carrying
out in mutual co-operation, investigations and research, in
particular of experimental and application oriented nature.
Experimental research is understood to include, whenever
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B6. Vienna 1996
