Grün, A., 1978. Experiences with Self-Calibrating Bundle Adjustment. 
Presented paper, 44th ASP Annual Meeting, Washington, D.C., Feb./March. 
  
Haggén, H. & Váátáinen, S., 1980. A Comparative Study Concerning the Accur- 
acy of Some Measuring Arrangements Frequently Used in Close-Range 
Photogrammetry, Int. Archives of Photogrammetry, 23 (B5): 286-295. 
  
Karara, H.M. & Abdel-Aziz, Y.I., 1974. Accuracy Aspects of Non-Metric 
Imageries, Photogramm. Eng., 40: 1107-1117. 
  
Schwidefsky, K., 1970. Precision Photogrammetry at Close-Ranges with Simple 
Cameras, Photogrammetric Record, 6: 567-589. 
  
van Wijk, M.C. and Ziemann, H., 1976. The Use of Non-Metric Cameras in 
Monitoring High Speed Processes, Photogramm. Eng. Remote Sensing, 42: 
  
  
  
  
  
  
  
  
  
  
  
91-102. 
Table 1: Results of the Hasselblad 500 ELM Self-Calibration 
Adjustments for Varying Photo-Invariant APs and Control Configurations 
total object space control points 
no. of 
AP structure APs minimal ctl. 4 7 min. ctl. 4 7 
is. EL d seh id decir] sies | isses] 1o. d 
cm cm cm cm cm cm um um um um um um 
4-photo adj. 
1st order 12 0.074 0.067 0.052 0.021 0.034 0.018 4.4 4.6 4.5 4.5 4.7 4.7 
2nd order 28 0.117 0.081 0.051 0.023 0.033 0.017 4.0 4.0 4.1 4.0 4.1. 4.2 
3rd order 44 0.157 0.080 0.037 0.024 0.034 0.017 3.8 3.7 3.8 3.8 3.8 3.8 
3-photo adj. 
1st order 10 0.055 0.094 0.043 0.019 0.030 0.016 3.8 3.4 3.8 3.4 3.8 3.7 
2nd order 22 0.219 0.092 0.082 0.029 0.029 0.017 3.2 2.8 3.4 3.0 3.5 3.2 
3rd order 34 0.234 0.099 0.097 0.035 0.030 0.019 2.8. 2.5 2.9 2.7 3.1 2.9 
2-photo adj. 
1st order 8 0.061 0.096 0.044 0.017 0.030 0.011 2.8.0.4 2.8 0.5 3.0 1.3 
2nd order 16 0.224 0.103 0.026 0.013 2.3 0.3 2.9 1.0 
(10 ctl. pts.) 
  
  
  
  
  
  
  
  
  
  
- RMS error of X,Y,Z object point coordinates. 
al nm 
- mean standard error of object point coordinates. 
$$ - RMS values of x and y photo coordinate residuals. 
Exposure Station 
# 1 
    
  
  
    
PUS 
  
M 
P 
Fig. 1: The projective influence of film unflatness. 
164