[Measured Results] 
  
EN 
Measurement Error RMS ( mm) 
  
X Y Z 
  
Case À 0.531 0.389 0.987 
  
Case B 0.711 0.706 0.996 
  
  
  
  
  
  
3.6. Example of 3D Measurement (Superimposition) 
By using IMS orientation, example of 3D plotting 
of our office is as shown below: 
  
Fig.8 Photograph on the Left 
Used in the Measurement 
  
Fig.9 Example of the Measured Data, 
superimposed on the left Image 
by Using the Line Command 
  
4. CONCLUSION 
Our concepts on the configuration of a practical 
system for close-range photogrammetry are 
described below: 
(D Easy operating devices for photography and 
orientation processing 
© Automatic measuring system based on the 
extraction of features (edge) on the object 
© Development of on-line plotting by using the 
3D CAD system wire frame models 
@ Direct image input by using high resolution 
CCD camera 
Our experimented orientation by the IMS was 
processed to obtain orientation angles by 
collimating a specified reference point by using 
transits. Originally this orientation, however, 
is a method of determing exterior orientation 
parameters just observing the angle of 
collimating direction directly and its purpose 
is to establish a most fundamental problem © in 
close-range photogrammetry. 
In this experiment, many observation discrepancy 
were seen owing to the target sizes which were 
big, but the measuring accuracy was almost 
reached to the theoretical values that allows us 
to say this method is near the practical level. 
Furthermpore, algorism to obtain the exterior 
orientation parameters has been confirmed. 
For the future, after finding methods of 
improving the adapter's stability and its 
calibration, we plan to establish a 
configuration that is more accurate and simple 
measurement for a base line of cameras than the 
IMS (for example, a high accurate total station) 
and develop a high resolution CCD camera system. 
REFERENCES: 
(19) Hattori, S., S. Murai, R. Shibasaki, He 
Ohtani, 1989 "A Semi-Automatic Terrain 
Measurement System for Earthwork "Control", 
Photogrammetric Engineering and Remote 
Sensing, Vol. 55, No.5, pp. 373-579, 
(2) Hattori, Se, S. Murai, R. Shibasaki, He. 
Ohtani, 1988 ISPRS Kyoto. "Stereo Matching 
Project in Japan", Commission No.2, pp, 
149-159. 
(3) Manual of Photogrammetry. 1980, fourth 
Edition, ASP 
     
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