illumination so 
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1g) theodolite. 
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And about the 
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ossible. This 
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known point 
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calculate 3-D 
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ers of control 
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of results by 
0n Sio, Si4 
615.99) 127 
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4 50 172 
5.37 5) 
calculated by 
] on theodolite 
sult of control 
of self-control 
nce(meter). In 
anges into 2 
at the object 
the result of 
and 184m, 
ntrol surveying 
id 184m. So, 
calculated by 
| on theodolite 
J the result of 
it is expected 
problem about 
control point, 
| is raised at 
| size object 
It. 
  
Fig. 7 is what showed the rm.s.e of X, Y and Z 
3.2 Object Distance and Number of Sheet of which is based on the change of convergent angle and 
  
  
  
  
  
  
  
  
HAAS SS = Zu 
2.4815 24815 54815, 2 4.015 
The number of photos 
Fig. 6 R.m.s.e based on the change of object distance 
and number of photographs 
Photos number of control point. In case that the convergent 
i angle is same, if one changes the number of control 
Fig. 6 is what Illustrated the rm.s.e based on the point from 15 units to 3 units with even density, the 
change of object distance and number of photographs, r.m.s.e increased, with about 7096 about X, Y, and with 
which was calculated by using the result of Self-control 8996 — 10195 Or SO. about Z. In case that the number of 
point. According as the object distance changes from control point is same and that the convergent angle 
14m to 1.0m, 0.6/m and 0.45m, rm.s.e reduces to changes from 20° to 120° , X coordinates increased 
28%, 50% and 60% or so. respectively. And if the with 88%, and Y coordinates is not being influenced, 
number of photographs increases from 2 sheets to 4 but the r.m.s.e of Z coordinates was reduced with 
sheets, 8 sheets and 15 sheets, r.m.s.e was reduced to about 78%. 
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seen that number of photographs and object distance 20° ‘40° 60° 80° 100° 120 
are very important elements, in 3-D coordinates 
measurement of object. 
  
  
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Z Coord. 
30%, 50% and 65% or so. respectively. So, it can be 
  
Convergence angle( °) 
Fig... 8 "Proportional accuracy of x. Y and: Z 
coordinates based on the change of convergent angle 
3.3 Convergent Angle and Number of Control Point and number of control point 
    
  
  
    
  
  
  
  
  
  
     
  
  
  
  
  
  
  
  
  
  
  
  
  
  
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X coord. Y coord. Z coord. 
Fig. 7 Rm.s.e of X, Y and Z coordinates based on the change of convergent angle and number of control point 
429 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B5. Vienna 1996