The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Vol. XXXVII. Part B5. Beijing 2008 
1105 
5. SUMMARY 
In this contribution, the basic techniques and methodologies 
were described, concerning particularly the modelling and 
orthorectification process, through the synergy of 
photogrammetry and terrestrial laser scanning. Especially, in 
the case of cultural documentation, where the accuracy 
requirements increase dramatically and the visual quality of the 
final products is indispensable, the fusion of different state-of- 
the-art methodologies is a demand. 
Although aerial photogrammetry has recently made a noticeable 
progress in the direction of automation (automated orientation 
and DSM extraction), in close-range applications as this one 
human interaction is still very important. Especially, during the 
stage of DSM production, only the stereoscopic check and 
correction can ensure a “true” 3D model. This holds also for the 
orthophoto generation, even when specialized true-orthophoto 
generation software has been employed. 
The current project, due to its complexity and archaeological 
interest can be characterized, as an important case study for 
similar research, involving large and complex cultural heritage 
sites. 
REFERENCES 
El-Hakim, S., Beraldin, J.A., Picard, M., Coumoyer, L., 2008. 
Surface reconstruction of large complex structures from mixed 
range data - The Erechtheion experience. International 
Archives of the Photogrammetry, Remote Sensing and Spatial 
Information Sciences, Vol. 37, Part B5 (in the proceedings of 
this Congress). 
Karras G., Grammatikopoulos L., Kalisperakis I., Petsa E., 
2007. Generation of orthoimages and perspective views with 
automatic visibility checking and texture blending. 
Photogrammetric Engineering and Remote Sensing, 73(4), pp. 
403-411. 
Mavromati, D., Petsa, E., Karras, G., 2003. Experiences in 
photogrammetric archaeological recording. Proc. XIX CIPA Int. 
Symposium, Antalya, Turkey, pp. 666-669. 
Moullou, D., Mavromati, D., 2007. Topographic and 
photogrammetric recording of the Acropolis of Athens. Proc. 
XXI CIPA Int. Symposium, Athens, Greece (on CD-ROM). 
Remondino, F., El-Hakim, S., Baltsavias, E., Picard, M., 
Grammatikopoulos, L., 2008. Image-based 3D modeling of the 
Erechteion, Acropolis of Athens. International Archives of the 
Photogrammetry, Remote Sensing and Spatial Information 
Sciences, Vol. 37, Part B5 (in the proceedings of this Congress).