5. Istanbul 2004 
  
of 60 seconds 
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is absolutely 
nic perspective. 
he project Celle 
=54,000 in total 
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was divided in 
1e needed was 
a percentage of 
that more than 
onsuming CAD 
geodetic and 
t 35%. In this 
D is included. 
the analysis of 
; 
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% 
hote orientation, camera 
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1095 
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evaluation 
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the Celle castle 
International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B5. Istanbul 2004 
is described in Kersten et al. 2003, while the project of 
Ahrensburg castle is summarized in Kersten & Acevedo Pardo 
2003. Additionally, further projects of some manor houses in 
the area of Hamburg, e.g. Landdrostei Pinneberg, Jenisch house 
and Gossler house in Hamburg, could demonstrate the high 
potential of digital architectural photogrammetry for exact and 
detailed 3D building reconstruction (Kersten & Acevedo Pardo. 
2002). Such projects are also suitable for the education of 
Geomatics students, where a complete project can be conducted 
as a practical course or as a diploma thesis including some 
further investigations and testing. 
The major time-consuming and cost-intensive factors for such 
projects are the manual 3D building reconstruction in CAD and 
the degree of visualization, which could easily result in a never- 
ending-story - if the requirements are not well defined. The 
estimated costs of the presented projects are obviously much 
too expensive for use purely in Internet visualization of the 
castles. Therefore, it is essential to find synergy effects with 
other interested applications to finance such projects. On the 
other hand, automatic methods for detailed generation of virtual 
castles or historical buildings are not available on the market. In 
future the terrestrial 3D laser scanning could offer automatic 
acquisition and evaluation methods in combination with digital 
photogrammetry. 
Due to the modern and efficient methods of detailed 3D 
building reconstruction and the appropriate. possibilities for 
their visualization, especially on the Internet, the interest in the 
collection of virtual historical buildings will increase. Today a 
combination of internal and external 3D building modelling can 
allow virtual fly- and/or walk-throughs (e. 
historical buildings. 
vg. VRML) in 
ES 
TS 
8. REFERENCES 
Kersten, Th. & Acevedo Pardo, C., 2002: 3D-Objektaufnahme 
von historischen Gebáuden durch digitale Architekturphoto- 
grammetrie für Visualisierungsaufgaben und Facility Man- 
agement. Photogrammetrie und Laserscanning: Anwendung 
für As-Built-Dokumentation und Facility Management, Th. 
Luhmann (Ed.), Wichmann Verlag, Heidelberg, pp. 42-56. 
Kersten, Th. & Acevedo Pardo, C., 2003: Wie kommt das 
Ahrensburger Schloss in den Computer? 3D-Gebäude- 
erfassung und Visualisierung durch digitale Photogram- 
metrie. DenkMal! Schleswig-Holstein, Zeitschrift für Denk- 
malpflege in Schleswig-Holstein, Jahrgang 10, Westhol- 
steinische Verlagsanstalt Boyens & Co., Heide. 
Kersten, Th., Eilmus, B., Lindstaedt, M., Acevedo Pardo, C., 
2003. 3D-Erfassung und Visualisierung des Celler Schlosses 
durch digitale | Architekturphotogrammetrie. | Photogram- 
metrie, Laserscanning, Optische 3D-Messtechnik - Procee- 
dings of Oldenburger 3D-Tage 2003, Th. Luhmann (Ed.), 
Wichmann Verlag, Heidelberg, pp. 213-222. 
  
Fig. 9: Perspective visualization in 3D Studio VIZ of the three north German castles: Celle (upper left), Ahrensburg (upper right), 
and Glücksburg (below)