c tools for the 
to display the 
simultaneously, 
bined evaluation 
tion of the scan 
atures of a 3D - 
| without having 
ingle frames can 
: the angles of 
> definition of a 
> or triangulated 
high resolution 
of single bricks 
inates, in three 
x 
vo 
processing 
bal coordinates, 
ed out, and the 
. All the data is 
of the operating 
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ie points. The 
| typ. 4 — 7mm 
rocess has been 
display of the 
uds of all scan 
following scan 
ws of the final 
5. Istanbul 2004 
International Archives of the Photogrammetry, Remote Se 
   
  
A total of 24 adjacent scan positions around the governing 
place - that had been considered as the object of main interest 
and highest priority by ICHO experts - and one 
nsing and Spatial Information Sciences, Vol XXXV. Part B5. Istanbul 2004 
supplementary position from the opposite outer wall of Arg- 
E-Bam were chosen. 
  
Figure 5: Merged point cloud of different scan positions within RiSC 
AN PRO, left: colour encoded, right: true coloured 
3. CONCLUSION 
The characteristics of the most powerful instrument of the 
RIEGL LMS scanner series, the LMS-Z420i, are: its narrow 
beam divergence (0.2 mrad only), its operating range (up to 
800m), and its single-shot accuracy (10 mm, which can be 
improved up to 5mm by scan sequences). As a consequence, 
the raw scan data provide a precious basis for different post 
processing activities. The time-of-flight laser measurement 
technique employed, allowing long range performance and 
reliable data acquisition even for locations difficult to access, 
is perfectly completed by the photogrammetric method (high 
pixel density, hence definition and vectorisation of edges and 
high accuracy of details.). Thus, the versatile hybrid 
instrument corresponds ideally to architectural, topographic 
and archaeological requirements. The high speed of 
operation allows a quick data acquisition, and it is therefore 
possible to build up an archive of historical sites and 
monuments for multipurpose post-processing, not only under 
such tragic circumstances like the catastrophic earth-quake in 
Bam. 
    
    
          
  
  
  
  
  
   
      
   
   
    
  
    
   
   
    
  
REFERENCES 
RIEGL Laser Measurement Systems GmbH, technical data at 
www.riegl.com , 2004 and www.nprco.com 
Ullrich, et al, Time-of-flight-based 3D imaging sensor with 
true-color channel for automated fexturing, Optical 3-D 
Measurement Techniques V, Conference Proceedings p. 2-9, 
Vienna, October 1-4, 2001. 
Ullrich, R. Schwarz, H. Kager, Using hybrid multi-station 
adjustment for an integrated camera laser-scanner system. In 
Optical 3-D Measurement Techniques VI, Volume 1 
September 2003 . 
> 
ScanDig3D, orthophoto-plugin for Autocad CAD software, 
Homepage www.scandig3d.com, 2004. 
PHOCAD photogrammetric plugin “PHIDIAS” for 
Microstation CAD software, Homepage www.phocad.de, 
2004 
Effkemann, Integrierte Auswertung photogrammetrischer 
Aufnahmen und. Laserscandaten mit PHIDAS, Oldenburger 
3D-Tage 2003. 
ACKNOWLEDGEMENTS 
The authors would like to thank ICHO experts and 
authorities who facilitated, supported and co-operated to 
achieve the best results, as well as Rayan Naghsheh Co. who 
provided the GPS and surveying team, furthermore Mr. M. 
Noor Allah Doost who managed the surveyors, and all those 
hard working and impressively motivated helpers from Bam 
who assisted the surveying project. 
APPENDIX 
Index of illustrations 
Figure 1. Bam Citadel before and after the earth quake Figure 4. Results table: a) coloured point cloud, b) 
Figure 2. RIEGL LMS Z420i in Bam Citadel decimated mesh with high resolution texture, 
Figure 3. PHIDIAS mono plot post processing (point c) orthophoto, d) mono-plot post processing 
cloud, photograph and CAD drawing within one window) Figure 5. Merged point cloud of different scan 
positions within RISCAN PRO