Full text: XVIIth ISPRS Congress (Part B5)

  
   
  
  
  
  
  
Reseau plate 
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N. 
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ere re 
   
   
Reflector for see 
réseau preillumination Rotation ring 
Fig. 2: Technical drawing 
3) film transport 
After the  preillumination the film is then 
transported. 
An integrated rechargeable power supply feeds the 
camera with electricity. An external power supply 
feeds the flash unit. For industrial application, the 
ZEISS lenses Distagon 4/40 mm metric, Distagon 
4/50 mm metric and Planar 2.8/80 mm metric belong 
to the standard equipment. 
To meet with all different requirements, the Rolleiflex 
6008 metric system with its flash an preillumination 
unit offers the use with a tripod as well as the hand 
held recording. The camera can be used outside the 
preillumination and flash unit with all features for 
taking standard pictures. 
3. APPLICATIONS 
In the following, three measurement results are 
presented: 
Surface measurement 
For controlling the tension situation on a conveyer belt 
for coal, a surface of app. 1 x 1 m was signalised with 
retro target in regular intervals. A calibrated scale was 
used. 
The bundle adjustment gives the following results: 
(8 pictures, 659 unknowns, 3082 observations, 1 
camera) 
SIGMAO - 0.0007 mm 
RMS x =0.0006 mm 
RMSy =0.0006 mm 
The object points were determined with following 
accuracy (standard deviation): 
SX =0.01 mm 
SY =0.08 mm 
SZ =0.01 mm 
Fitting check for plane parts 
For quality control of plane parts, it is necessary to 
check certain parts before adjustment into the whole. 
In this case, a large format camera Rollei LFC (230 x 
230 mm) or Rollei R_Metrika (120 x 95 mm) / 1992 
Peipe, Suilmann, Wester-Ebbinghaus / is used to meet 
with the accuracy requirements. For testing purposes, 
the Rolleiflex 6008 metric was also used in this 
application. 
In this test, the design of the retro target was 
developed for a use of a large format camera. For an 
automatic point determination with RS1 software the 
size in the 60 x 60 mm pictures was too small. The 
measurement had to be effected in the manual mode 
and a lower accuracy was accepted. 
The bundle adjustment gave the following results: 
(14 images, 659 unknowns, 3082 observations, 1 
camera) 
SIGMAO = 0.0023 mm 
RMSx =0.0019 mm 
RMSy =0.0022 mm 
SIGMAO = est. variance of unit weight 
RMS x, RMS y = mean square residuals of image 
coordinates 
The object was determined with the following 
accuracy (standard deviation): 
SX =0.15 mm 
SY =0.10 mm 
SZ =0.09 mm 
   
   
  
Type 
Pictur 
Shutte 
Lens 1 
Résea 
Lense: 
Weigh 
  
Fig. 3. 
A cor 
Forma 
in the 
(mean 
dX 
dY 
Objec: 
Comp 
Furthe 
are she 
  
	        
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