inbul 2004 
ND 
Kanazawa 
CCD line 
pus. CCD 
mpus. Two 
nd another 
or 135mm 
length per 
‘get points 
are 2080. 
d 9.62” for | 
  
International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part BS. Istanbul 2004 
Je 
Figure 4. Experiment executed in Kanazawa Institute of 
Technology 
Figure 4 shows the experiment executed in Kanazawa Institute 
of Technology. This position corresponds to the line sensor À. 
We can find out the line number of each target point from other 
line sensor easy. Line number corresponds to the angle from 
other line sensor position to target point. Measurement 
resolution can be calculated theoretically as follows. If target 
point located 100m far from line sensor position, theoretical 
resolution can be calculated as follows. 
Focal Length 135mm: 
Resolution = 100000 x SIN((7/180)*21.39/3600) 
= 10.4mm 
Focal Length 300mm: 
Resolution = 100000 x SIN((1/180)*9.62/3600) 
— 4.7mm 
Obtained images by using CCD line sensor are shown in Figure 
5. Preliminary analysis of the obtained CCD line sensor images 
showed the following result. Mean measuring crror for focal 
length 300mm was about [5mm at the target about 100m far 
from CCD line sensor. 
5. SUMMARY 
In this experiment, following things are become clear. CCD line 
sensor is effective for 3D measurement. Calculation of 3D 
position of target is very casy. Rotation of 360°is not necessary 
for measuring the 3D position of targets. 
  
ae 
Figure 5. CCD line sensor images used in this study 
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- 
Avutthaya, Thailand, Vol. XXXIV, Part 5/W1, pp. 141-142.