4.2 Comparison Verification of Measurement Results 
The polygon display of some measured data by using 
polyworks is shown in Figure-11-(a). (It is drawn by using 
50,000 points data) Each point has 3-dimensional information 
and color information. 
photogrammetry and LMS within this area. 3DCG is created 
based on polygon data, the shape of a structure is traced, and 
the combined picture on the drawing of photogrammetry is 
shown in Figure-12 and it is confirmed that these data has a 
good agreement. (Better result can be achieved by using higher 
resolution laser) 
Generally, photogrammetry figure creating work is done by the 
Photogrammetry operator. However, the cultural property 
experts point out as follows. 
1. The technician creates figure without understanding what 
object is; 
2. The created figures have not academic value; 
3. The size of expected point cannot be measured etc. 
For example, for the expert of the cultural property, the object 
itself has academic value and figure drawing is just for 
interpreting the object. On the other hand, the person in charge 
for preservation management asks for a system in which is able 
to measure the coordinate of an expected point. In order to 
deliver information in a rigorous cooperative posture for these 
three parties, it is necessary to ask cultural property expert to 
suggest ortho-photo that is created at field based on digital 
Photogrammetry and shape acquired by LMS. 
  
(b) 
Figure 11. 
(a) The polygon display of some measured data 
(b) Trace the ridge line of CG 
  
  
  
Figure 12. Photogrammetry and LMS data 
  
5. APPLICATION TO PRESERVATION AND 
MAINTENANCE MANAGEMENT 
As Information management to grasp structural deformation 
due to deterioration, it is important to carry out an integrated 
management system of field investigation results and structure 
repair history. Up to now, twice preservation constructions were 
performed in the Atomic bomb memorial dome. It is important 
to arrange the records of past two preservation activities and 
construct a system that can deliver those information (when, 
when and how the preservation construction were done) to 
future generations. 
By up grading integrated 3-dimensional management system to 
the former two-dimensional handwriting-revised repair and 
investigation records, the planning and consideration of future 
preservation management becomes easy. 
Figures13 and 14 show the examples of recording of repair and 
investigation results based on photogrammetry CAD drawing. 
More detailed record is displayed by choosing each 
investigation and repair part. (Figure-15) 
  
  
   
  
  
  
   
  
  
  
  
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Figure 13. The record of preservation construction 
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Figure 14. The record of preservation construction 
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