International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B5. Istanbul 2004 
  
  
  
  
! round symbol center. 
4) This method is easy and rapid. It can measure the | 
errors for different groups with different focuses. 
Considering the effect of the changing focuses on 
distortion, it is specially fit for the close-range camera 
calibration. It takes about five minutes to establish a 
group of models. s 
5) The investment and space occupation to establish a b. 
plane control network is smaller than to establish a 
plumb-line control network. And it is easier for 
maintenance. KI 
| Reference: 
| Al 
| l. Beyer,H.A., Geometric and Radiometric Analysis of a 
A CCD-Camera Based Photogrammtric Close-range System, Af 
Mitteliungen  Nr51, Institute for Geodesy and a 
| Photogrammetry, 1992. po 
1 Brown, D.C., 1971.Close-Range Camera Calibration for 
Photogrammetric Engineering, 37(8):855-866. 
3 i! FENG | Wenhao, May 2002. Close -range Ki 
| Photogrammetry — Photographing Measurement for Na 
| Shapes and Moving Status of Objects, Wuhan: Publishing d 
House of Wuhan University. dur 
4t]FENG Wenhao, 1988, A method to determine distortion m 
| errors for ordinary cameras, Journal of Surveyors, Beijing, 
| No.4: 20-23. : 
Ë RE 
SM Fraser, C.S., A Correction Model for Variation of 
Distortion within the Photographic Field, Close-range an 
Photogrammetry Meets Machine Vision, Zurich, e 
Switjerland, 1990. tecl 
Les