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Task 3: Data bases are to be developed for national and
international cooperation in the various fields of cultural
resource information management.
The data on monuments and sites including the photo-
grammetric documents should be properly managed.
This includes systematic updating in the event of reno-
vation or decay, regular inspection of the sites, cooper-
ation with the owners,
handling of contracts, management of financial sup-
ports, ability to find plans, literature, correspondence
etc. Furtheron, all existing photographs should be digi-
tized in order to manage the mass of images as well as
to protect colour films against fading. The data should
also include XY-coordinates; only then area search and
mapping with symbols are possible.
Any documentation made of a monument of another
country and brought home by some travelling expert
should be collected and registered and/or stored like
those of national monuments, but information should be
made available to the other country. Cooperation is
needed also in the cases of the world heritage, for
which both, the Parisian ICOMOS-Data Base and the
national data base, are competent.
The problem of national and international data bases for
architectural photogrammetry will be treated at a sym-
posium in Quebec City immediately after the ISPRS
Congress in 1992 (R. Letellier, Hull). Much work is
waiting for ICOMOS and CIPA to solve all the problems
of standardization for international data exchange. It is
interesting to note that many national or regional data
bases exist for technical data, social information, fi-
nances, land register (cadaster), natural resources and
others, but nearly none for the cultural convironment
and, if any, more likely for archaeological sites or finds
than for architectural monuments.
Task 4: Digital photogrammetry and digital image pro-
cessing are to be further developed.
Rectification of digital images (digital orthophotos) as
well as digital developments produced from general
perspectives, real-time photogrammetry with an after
multi-image matching, artificial shading and shadow
changes, color corrections and color transformations,
project simulations and automatic change detection,
painting studies (colour compositions). These are only
some subjects to be treated out of the wide field of
practical application of digital image processing in archi-
tectural photogrammetry.
Task 5: Public relations
In fact, architect and photogrammetrist are competitors
up to a certain extent for building surveys. Both get
their contracts from the owner of the object or from its
administration. Architectural photogrammetry has and is
sometimes the better solution for a surveying problem,
but might have no chance to get the contract due to
ridiculous anti-propaganda. It seems advisable therefore
to show photogrammetric performance in videos and by
results also to many others. Excellent materials suited
for this purpose could be exchanged internationally.
Without such efforts, photogrammetry could continu-
ously lose in the market. The same videos may be used
also for training purposes.
In this respect, any extended publication of CIPA activi-
ties planned in the CIPA objectives for the coming years
is most welcome, but it must be clearly expressed that
activities are the prerequisite for any publication.
769
Task 6: Promotion of activities of National Del :
Cooperation with other committees and organizations.
Frank exchange of experience and results, permanent
contact by fax and phone, mutual information and as-
sistance, a visiting programme to strengthen personal
relations, definition of common goals and programmes,
mutual respect and own activities, these are some
recommendations for proper motivation of National
Delegates. An important task for the National Delegates
is to contact colleagues of other committees. Important
committees with possible relations to architectural
photogrammetry are e.g.: Vernacular Architecture,
Cultural Tourism, Historic Gardens and Sites, Historic
Towns, Rock Art, Archaeological Management. But also
other groups are in fact interested in architectural pho-
togrammetry, e.g. archaeologists, early historians, his-
torians, ethnographers, city researchers, architects and
civil engineers, photographers, regional planners, tour-
ism managers, Lord Mayors, Board of Works, house
owners ... It is a main task of all National Delegates to
keep contact also to the neighbouring and interested
groups. Reports on such contacts can be of great inter-
est also to the delegates of other countries.
Task 7: Promotion of cooperation with the miltary and
with local fire brigades.
During armed conflicts, the military has to protect the
country and the architectural heritage. In the future, we
should involve it much more. The military has to learn
about the convention and it can, at first, assist in and
later execute photogrammetric documentation according
to the 3x3-rules. The method is very useful for the
military because it may be used for the documentation
of other objects, too, as e.g. for traffic accidents, or for
an avalanche disaster. At the same time, the military
learns about value and beauty of many important monu-
ments. Education and delegation of responsibility are
important means towards protection of monuments. In
the same manner it is also advisable to cooperate with
local fire brigades.
Task 8: Cultivation of macrophotogrammetry. Cadastre
of small monuments and museal photogrammetry.
The cultural heritage to be "protected" or assisted by
photogrammetry is not only architecture. Many smaller
monuments in towns and villages, in the midst of the
landscape or in the cemeteries, are witnesses of the
past, have been erected to explain something to us and
to our children. The cadaster of small monuments
should contain also photogrammetric documents in
many cases. Another "class" of cultural heritage objects
we find in the different museums: Globes (Kraus,
1992), statues, music instruments, pieces of fine art,
coins and medals, rare crystals and minerals, archaeo-
logical finds. Stereo-photogrammetric documents - in
future digitally - are helpful means for science, after
theft, fire, disasters, against falsifications and for repro-
ductions.
Summarizing we see that architectural photogrammetry
has a wide working area, is technically interesting,
never boring, with many open questions. And we see
that plenty of work still has to be done by Commission
V as well as by CIPA in the coming years.
References:
Almagro, A., 1991. Simplified methods in architectural
photogrammetry. XIV'^ International Symposium of
CIPA, Delphi, Greece, 1.-4.10.1991 (in preparation).
Baltsavias, E., 1991. Multiphoto geometrical con-
strained matching. Mitteilungen des Institutes fiir Geo-
däsie und Photogrammetrie der ETH Zürich Nr.49.
