Full text: Close-range imaging, long-range vision

bout the details, 
ee Fig.4 
nterpolated Image 
Interpolated Ortho 
Projection Image 
ge 
e 
jection Image 
nt Area 
  
mission Part) 
After the identification of omission parts, stereo matching is 
performed only about the omission parts, therefore 3D shape 
data can be interpolated. Furthermore, color information is 
copied from central projection image to simulated central 
projection image. As the result of this process, colored ortho 
projection image without omission parts can be obtained. 
4. INTERPOLATED RESULT 
Figure 6 is interpolated result by refind system. It can be 
recognized that imaging for shadow areas occurring in hollow 
areas on complicated relics or faint areas at the top of columnar 
relics are successfully performed. 
  
  
Fig.6 Interpolated Ortho Projection Image 
   
  
   
Enlarged 
Part 
    
(a) 5.2Mpixel Image (b) 0.4Mpixel Image 
Fig.7 Part of Ortho Projection Image 
In addition, one of the remarkable points of the system used 
high resolution cameras is its ability to obtain high quality 
image. Figure 7 shows enlarged image for a part of ortho 
projection image which were taken by 0.4 M pixel CCD 
camera and 5.24M pixel amateur camera. 
Figure 8 shows 3D model with high-resolution texture which 
was obtained by the refined system. 
  
Fig.8 3D model with high-resolution texture 
5. CONCLUSION 
The refined ortho imaging system for imaging shadow areas 
occurring in hollow areas on complicated relics or faint areas at 
the top of columnar relics and lack of image quality were 
described. The remarkable points as additional results of the 
system are its ability and 3D color model. 
However, there is issue which need to be resolved before this 
system may become more operational. This problem is human 
intervention for camera calibration, and this process should be 
simplified for further operational development of the system. 
REFERENCE 
I.H YOKOYAMA, K.HATANO, H.CHIKATSU, 1996, Ortho 
Projection and Drawing for Archeological Artifacts of Complicated 
Form, International Archives of Photogrammetry and Remote Sensing, 
Vienna, Vol.XXXI, PartB5, pp.95-100 
2. HL. YOKOYAMA, H.CHIKATSU, Y.MIYATSUKA, 1996, Ortho 
Projection and Drawing for Archeological Artifacts using CCD 
Camera, SPIE Videometrics IV, Vienna, Vol.2598, pp.102-105 
3. H.CHIKATSU, T.ANAI, 1998, Relics Modeling and Visualization 
in Virtual Environment, International Society of Photogrammetry and 
Remote Sensing, Hakodate, Vol.XXXII, Part5, pp.528-532. 
4. Tony SCHENK, 1999, Digital Photogrammetry, Terra Science 
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