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a 3D crystal glass cube. Spatial forward intersection of 2
infrared Laser beams, verified as Two-Step Upconversion,
gains the Voxels. It is liked to emphasize, from a consequently
dealing with the principals of Spatial data visualization, even
the future of the whole computer industry might change, in
order to replace or to complete the 2dimensional screen
generation.
2. METHODS FOR VIRTUAL SPATIAL 3D SCANNER
DATA PRESENTATION
According to the image definition, a Laser Scanner should
fulfil both, Geometric as well as Radiometric requirements.
This is basically illustrated in Figure 2 and 3, which, for
archaeological objects in Patara, the antique capital of the
province of Lycia (Turkey) show comparisons of the results of
a Laser Scanner surveying (left image) with oblique
photography of the same object (right image). This samples
clearly indicate the lack of detail resolution due to the lack of
Radiometric information for this particular Laser Scanner data,
while the conventional photographs shows satisfactory detail
resolution.
Both samples demonstrate the necessity for a combination of
Geometric and Radiometric Laser Scanner data. Neglecting this
requirements shows results lacking detail resolution, which
might even lead to a practical inability of particular Laser
Scanner results. A combination of Geometric and Radiometric
data obviously is necessary, as already verified for advanced
Spatial Laser scanning technology. Beside simultaneous
registration, corresponding Geometric and Radiometric data can
also gained from suited spatial transformations of Radiometric
image data into 3D Geometric Scanner data.
Figure 2 shows the result of a 3D Laser Scanner surveying of the antique theatre in Patara (Turkey) (left image) in comparison with a
stereo mate of an oblique photograph of the same object (right image).
Figure 3 shows a comparison of the result of a Laser Scanner surveying of the antique main gate in Patara (Turkey) (left image) with
the stereo mate of an oblique photograph of the same object (right image).
In any case Spatial Scanner data can be looked at as Voxels,
stored in a 3dimensinional raster data matrix, which is the
database for different image transformations, in order to derive
synthetic digital stereo mates, suited for conventional methods
for virtual 3D data presentation and stereo viewing .
To verify this, as usual, two images of the same object, gained
from two different simulated viewing positions with at least
approximately parallel look directions have to be processed.
It shall clearly be stated, in principle the derived stereo mates
can be of real or synthetic origin!