3. RESULTS OF THE RECONSTRUCTION 
3.1 Internet images 
From the Internet data we used only three images for the 
MPGC matching algorithm. A point cloud of ca 6000 points is 
obtained. Some holes are present in the results (Figure 7, left) 
because of surface changes due to the different time of image 
acquisition and to the low texture in some areas. For the 
conversion of the point cloud to a triangular surface mesh, a 
2.5D Delauney triangulation is applied. The texturized 3-D 
model is shown in Figure 7. 
    
Figure 7: Point cloud obtained from the internet images | 
(left). 3-D model of the Buddha displayed in texturized mode 
(central and right image) 
3.2 Metric images - Automatic measurements 
Using VirtuoZo we got an entire Buddha model including parts 
of the surrounding rocks. A very dense point cloud of 178000 
points is obtained (Figure 8). 
  
Figure 8: 3-D point cloud generated with automatic matching 
on the metric images 
The statue as well as the rock around it are well reconstructed, 
but due to the smoothness constraint and grid-point based 
matching the small folds on the body of the Buddha are not 
visible. 
For the modeling, a 2.5D Delaunay triangulation is performed: 
without losing its topology, the 3D surface model of the 
Buddha is expanded to a plane by transforming the cartesian 
coordinate system to a cylinder coordinate frame. In the defined 
06 cylinder frame, c is the vertical cylinder axis crossing the 
model center and parallel to the original Y-axis of the cartesian 
object coordinate system. o is the euclidean distance from the 
surface point to the z-axis and 0 is the angle around the z-axis. 
The 2.5D triangulation was done in the OZ plane and the final 
shaded model of the triangulated mesh is shown in Figure 9. 
  
  
a 
Figure 9: The triangulated shaded model 
Then the central image of the metric data set is mapped onto the 
3-D geometric surface to achieve a photorealistic virtual model 
(Figure 10). The lower part of the legs are not modeled because 
in the used stereomodel the legs were not visible. 
    
d ie de 
Figure 10: Visualization of 3-D model of the Great Buddha 
in textured mode 
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