International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part BS. Istanbul 2004 
  
S.2 Case 2 
In this case, PTSS has been used to measure a building to create 
its 3D model. Because of the limitation of time, only part of this 
building is measured and reconstructed. The result is shown in 
Fig. 6. These results show that the 3D model reconstructed by 
PTSS can be very detailed. 
Such two application experiments described above show the 
usability and application potential of PTSS in terrestrial 
photogrammetry, cyber city modeling and so on. 
xy ESI SEN 
Fig 
(a) Measurement scene (b) Contour 
  
  
(b) 
Fig. 6 PTSS has been used to measure and reconstruct 
buildings. 
6 CONCLUSION 
In this paper, we presented a completely novel surveying system, 
   
photo total station system (PTSS), which is an integration of 
mature digital photogrammetry technique and high accurate 
engineering surveying equipment (total station). Compared with 
traditional terrestrial photogrammetry, control points around or 
on the measured object are not needed in this system. Compared 
with traditional engineering survey, which mainly involves field 
survey, PTSS is much more laborsaving, efficient and 
automatic. 
To conduct experiments, metric digital camera D30 produced by 
Rollei company, Germany and total station SET 500 produce by 
Sokkia company, Japan are currently used in PTSS. Test results 
show that PTSS can implement truc non-contact measurement 
and its measurement accuracy is high enough to meet the need 
of normal close-range measurement, it not only can complete 
ordinary engineering survey and large-scale topography survey, 
but also shows great potential in special survey, like the 
measurement of dams, coal mines, ore piles, Buddha, buildings 
and so on. Its accuracy, reliability and efficiency have been 
show in application examples. 
ACKNOWLEDGEMENTS 
The great support of Mr. Wu Baichuan, general manager of 
Lensoft company, is gratefully acknowledged. 
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