is the ability to
' manner, and in
also provides a
accurate facsim-
ge or if the need
the original was
the surface mi-
from the bullets
Ned must have
forging process
other method of
al detail.
ile of the com-
ly produced us-
y and computer
) reproduce (or
on purposes, as
ctions between
id display. The
provenance of
stolen antiqui-
lata sets of ob-
ie in the devel-
on on the Ned
gress had been
f Victoria, and
ata acquisition
| J. Ristevski.
Treasures of
tional Confer-
4-115
3D-VISUALIZATION TECHNIQUES
- THE COMPLETE LIST -
W. Schuhr *, E. Kanngieser ”
" University of Applied Sciences, 39114 Magdeburg, Germany e-mail: schuhr3d@hotmail.com
e University of Applied Sciences, Hamburg, Germany
ISPRS Commission V Symposium, Corfu 2002
KEY WORDS: Education, FELIX-3D, Fotomatics, MIS, Nuoptix, Spatial visualization, stereo-image archive, Internet
ABSTRACT:
It is the intention of this paper, to stimulate the scientific as well as the public interest in virtual spatial visualization.
Therefore this paper deals with fundamentals for virtual spatial data presentation, starting with results, showing the advantages of
spatial image data interpretation. Additional basics dealt with include a systematic and complete(!) synoptically overview for
stereoscopic techniques, according to the state of the art.
Stereoscopic techniques in this sense mean full virtual spatial visualization techniques only, while data presentations limited to
perspective or so called 2.5D projections are not part of this investigation.
Beside well established 3D visualization Technologies, based on stereoscopes, anaglyphs, polarized glasses, liquid crystal shutters,
chromadepth glasses etc., it is liked to emphasize, the dynamic Nuoptix method, according to PULFRICH and in particular the
improved solid state Felix-3D promise a great future for both, the scientific as well as the public 3D visualization.
It is liked to emphasize, a portable light staff (digital) camera, preferable with remote control, for extreme low altitude photography
very successfully has been applied for 2D image mosaics as well as for 3D visualization of antique objects in the ancient city of
Patara(Turkey). This rather flexible light staff camera method promises a great future, not only under expedition constraints.
As a first result this paper deals with at least 10 topics, which are still a matter of research, e.g., the optimum base length for close
range stereo photography.
An attempt has been carried out, systematically to define remaining research Gaps in 3D visualization, which stimulates for further
progress in this field.
1. INTRODUCTION
In the digital age the importance of spatial data presentation and
visualization is increasing for tremendous applications, like
- for 3dimensional viewing of synthetic vector data based
stereo mates for a better understanding and interpretation
of Monument Information System (MIS) data, including
vector data based sketches basic and thematic layers for
synoptically as well as for reasons, concerning detail
precision,
- for the stereoscopic presentation of architectural and
archaeological models, currently in particular increasingly
derived from laser scanners etc..
- for practical improvements from a 3dimensional
interpretation of MIS related stereo mates for, but not
restricted to close range image maps.
The main benefit of 3dimensional data presentation in general is
the still underestimated gain of a complete additional
dimension.
This means, the 3D product is the "long-range vision" for the
provided product of close range imaging to be used for the
broad spectrum of close range Deliverals.
For MIS devices allowing a temporary processing of the stereo
mates there is no need for a permanent additional storage.
This paper concentrates on basics of virtually 3dimensional
data visualization, but neglects perspective or so called 2.5
dimensional data presentations.
As a result of fundamentals of virtually spatial data
presentation, including the aids for stereoscopy it deals with the
complete list for 3D visualization techniques.
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.
Here namely the so called FELIX -3D with a solid state 3D
screen seems to become a real candidate for a new spatial PC
generation in order to replace or to complete the 2dimensional
screen generation.
The FELIX-3D solid state is the successor of well known 3D
cylindrical Plexiglas tube, both suited for the presentation of
3D Laser based models, to be generated in color and in real
time, for a direct autostereoscopic visualization, which means,
for unaided eyes.
After dealing with the essentials of advanced 3dimensional MIS
data presentation it is consequently reported on methods for
stereoscopic viewing of MIS data and on a procedure for a
systematic basic research in spatial data visualization. In this
context it is shown, this moving back to the basics of spatial
data visualization is required and gains a surprising potential for
further research. As a first result, there are defined 11 research
topics in this particular field of spatial MIS data research.
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