age coordinates 
  
  
  
  
  
  
  
  
  
  
  
  
  
3 NEMO LU nar D op 3 
«AEE v pea 
= m es a ete 
edo c UN 
= dud 31 > v = 
1 ? 
  
  
  
  
  
  
  
  
  
  
Einheit der Vektoren: 0.5um Einheit der Vektoren: 0.5um 
10a) Residuals of image coordinates of version 2 
SS a q ? P ^ 
S. 
AN a 
d = o- 2 » 
— o a a ^ 
o— e a 
= LE AT 
CT o e: or - 
e - oo 
oe Y 
e 
P^ 
v ¢ 4 à » v 
e 
Einheit der Vektoren: Sum Einheit der Vektoren: Sum 
10d) Offset mainly compensate by exterior orientation of version 2 
NULL e LNL CI ILLUM ES sane fl an nats” Pee 
TRIES RR BREE VS TI 
| i 
| 
| 7 
T NAT my A 
| I I ! 
| I I ! 
| I I ! 
"T i= + a 
| ! 
I | ' i 
77 NS ROT [RET ey 1. 4 | | | | 
x AAN = 
Y Z | l 
T | SEE ENE EX 
—> X D x 
  
  
  
Einheit der Vektoren: — 10um 
  
  
  
Einheit der Vektoren: — 10um 
10c) Deviation of object coordinates to nominal values (version 2) 
  
  
Figure 10: Results of version 2 (Free network adjustment and simultaneous camera calibration) 
6 Conclusion 
To avoid offsets a suitable target size can easily be chosen by 
using the above described procedure (chapter 3 and 4). Thus, 
the influence of the offset is far below the measurement 
accuracy. 
Even if oversized targets were chosen the photogrammetric 
bundle adjustment is able to compensate this influence to a 
large extend. 
Using same networks for deformation measurements 
eventually existing offsets does not influence the resulting 
coordinate differences of measurement epochs at all, because 
the influence is identical for all measurements. 
123 
7 Literature 
Brown J., Dold J. 1995: V-STARS - A System for digital 
industrial photogrammetry. Optical 3D Measurement 
Techniques III, Wichmann Verlag, pp. 12-21. 
Dold J., Suilmann G. 1993: Das RolleiMetric 3D- 
Industriemesssystem. Zeitschrift fiir 
Photogrammetric und Fernerkundung 61, Heft 
2/1993, S. 50-62. 
Lens R., 1988: Zur Genauigkeit der Videometrie mit CCD- 
Sensoren. Mustererkennung 1988, 10. DAGM- 
Symposium, Springer-Verlag, S. 179-189. 
Riechmann W., 1992: Hochgenaue photogrammetrische on- 
line Objekterfassung. Dissertation Technische 
Universität Braunschweig 1992. 
Zhou G., 1986: Accurate Determination of Ellipse Centres in 
Digital Imagery. Technical Paper ASPRS-ACSM 
Anual Convention, Vol. 3, pp. 278-286 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B5. Vienna 1996