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with other institutes into a new department. Our name is
Department of Planning - Surveying.
Photogrammetric research activities within the past four
years has been focused on digital and geological photo-
grammetry. In digital photogrammetry the subjects have
been automatic measurements and extraction of topogra-
phic information from aerial photographs and radar ima-
ges. In geologic photogrammetry the multimodel method,
where ordinary small-frame cameras are used by geolo-
gists for photogrammetric analysis and mapping, has been
used extensively in Greenland. Besides, a number of
multimodel projects have been carried out around the
world in co-operation with Statoil Norway for detailed
quantitative studies of sedimentary rocks in oil explora-
tion. À PC based system for geologists is under develop-
ment with the aim of inexpensive desk top photogram-
metry utilising off-the-shelf PC hardware, the Multimodel
software, and digitised small-frame photographs.
In order to illustrate activities, a couple of current pro-
jects are outlined below:
Radar images and topographical mapping: Images
from the newly developed EMISAR constructed by the
Department of Electromagnetic Systems, Technical Uni-
versity of Denmark are investigated. The aim is to eva-
luate the capability of the radar to produce elevation
models as a supplement to traditional methods for topo-
graphic mapping. Various resolutions of the radar, data
acquisition procedures such as repeat-track and across-
-track interferometry and rectification methods are evalua-
ted. The pixel size varies from 2 to 4 meters. Elevation
data as well as the planimetric information will be com-
pared with photogrammetrically produced maps from
large scale aerial photographs.
Multimodel photogrammetry on the Blosseville Coast
in East Greenland: A large scale geologic mapping pro-
ject is carried out on the Blosseville Coast in East Green-
land in co-operation with the Danish Lithosphere Centre.
The Blosseville Coast is characterised by steep fjords
with mountains that raise from sea level to elevations of
three to four kilometres, sometimes with near vertical
cliffs of up to two kilometres in height. Bordered by the
ice covered fjords and glaciers from the inland ice it is
one of the most remote and inaccessible areas of the
world. During the summers of 1994 and 1995, a team of
geologists carried out systematical stereo photography
from a Twin-Otter aeroplane. Oblique colour photographs
of the mountain sides were taken with hand-held small-
frame cameras. In total 2200 kilometres were photogra-
phed. By early 1996 some 2000 colour stereo models
have been orientated in the analytical plotter on app. 50
template sets covering 900 kilometres. The stereo models
are used by the geologists for detailed planning of sample
collection in the field and will be used for the final
compilation of geological maps and structural measure-
ments in the area.
Keld Dueholm
THE SCHOOL OF ARCHITECTURE IN AARHUS
Department O, Restoration, Urban and Building
Renewal. Laboratory for Photogrammetry
In connection with the Department for Restoration, Urban
and Building Renewal of the School of Architecture in
Aarhus is a Laboratory for Photogrammetry. Here the
students are trained in photogrammetric measuring of
buildings, monuments and architectonic building details.
Sometimes the students carry out minor commissioned
17
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B6. Vienna 1996
tasks. The students have during the last few years used
photogrammetry in connection with various study courses
in Stralsund, Górlitz and Malta.
An example is a project where two fifth year students
carry out a photogrammetric survey of a Neolithic temple,
Ta Hagrat, in Malta. The temple is very dilapidated, and
a proper survey has never been conducted. The construc-
tion of the temple made it impossible to perform a tradi-
tional survey with a grid of strings. The photogrammetric
method also made it possible to avoid to touch the ruin,
had the potential to obtain a greater precision, and finally
it reduced the duration of field work.
It was decided to make a plane and a facade mapping.
From a roof nearby control points were measured, and
photography was carried out from a crane basket.
The photogrammetric measurements are done in the La-
boratory in Aarhus, using a Zeiss Stecometer, with Fi-
lemaker Pro 2.1 for data collection. The drawings are
made in MiniCad 5.0.2.
Alette Skov-Hansen and Louise Kjær Christoffersen
UNIVERSITY OF COPENHAGEN
Institute of Geography
Research, development and education within remote
sensing, digital image processing and geographical
information systems.
The Institute of Geography has for several years been
using remote sensing, digital image processing and geo-
graphical information systems (GIS) in relation to studies
of the physical environment. 15 scientists are currently
working within the fields of remote sensing, image pro-
cessing and GIS. GIS and remote sensing project ac-
tivities are ongoing in Greenland, Denmark, Senegal,
Burkina Faso, Niger, Ghana and Tanzania. The institute
has been responsible for establishing facilities for satellite
image processing and GIS at three African institutions as
part of partnership arrangements.
Main areas of activities in relation to remote sensing
and image processing have been:
Methodologies for application of NOAA AVHRR data for
monitoring of agro climatological parameters, vegetation,
crop yield and bush fires.
Mapping of vegetation and land-use on the basis of
SPOT, Landsat and radar and airborne scanner data.
Methodologies for estimation of surface energy- and
radiation. balance components using satellite data.
Development of the PC based image processing system,
WinChips used for education and research.
A graduate remote sensing / digital image processing
course is currently offered.
Major GIS-application activities have focused upon
Land evaluations.
Change detection of agricultural systems.
Studies of urban structure and growth.
Methods and algorithms.
In connection with the newly established education in
geoinformatics the institute has procured the UNIX ARC-
/INFO Lab Kit and three GIS-courses are now offered for
students at all levels.
Henrik Steen Andersen
