nun nan oooo oooo 
nooo oooo unuunu uuuu 
nuuu nuun nuuu uuuu 
oooo ooao naun gooo 
goon goon nuun nau 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
uo Ty 
Camera A 
Camera B 
Figure 2. Image sequences of obtained movie 
example camera A), the angle from the direction of other 
camera (for example camera B) to the target marker can be 
calculated. Angle from the direction of camera A to the same 
target marker can be calculated by using the other camera B. As 
the result, distance from camera A to the target marker can be 
found out. The distances from each camera to the markers are 
calculated by using the above method. 
4. COMPARISON BETWEEN EXPERIMENTAL 
RESULT AND MEASURED DISTANCE 
The measurement was carried out using this system at 
Kanazawa Institute of Technology in Japan. Video camera was 
set at 3 points near library center in campus. Three kinds of 
rotating speed were selected. Highest rotating speed is 10 
minutes per 360 degrees rotation. Middle and lowest speed is 15 
and 20 minutes respectively. We took 14 target points around 
campus. Analysis of image sequence did not finished. We will 
show the experimental result at the workshop. Measurement 
accuracy will be also examined. 
Camera C 
f^ 
Camera B Camera A 
Figure 3. Measuring method of the angles 
5. SUMMARY 
In this system, there are some merits compare with conventional 
surveying method. Only one stuff is sufficient for measurement. 
Images obtained from video camera can be memorized. The 
object can be freely chosen. 
References 
Hosomura, T., 2001. 3D Modeling of Earthenware by Using 
Video Camera. Proc. of International Workshop on Recreating 
the Past —Visualization and Animation of Cultural Heritage- 
Ayutthaya, Thailand, Vol. XXXIV, Part 5/W1, pp. 141-142. 
  
Figure 4. Experiment executed in Kanazawa Institute of Technology 
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