Dipl.-Ing. Dr. techn. Stefan Bruckner, Vienna University of Technology
Interactive Illustrative Volume Visualization
Wednesday, 15.10.2008 16:15 im Raum M 5
Abstract:
Illustrations are essential for the effective communication of complex
subjects. Their production, however, is a difficult and expensive
task. In recent years, three-dimensional imaging has become a vital
tool not only in medical diagnosis and treatment planning, but also in
many technical disciplines (e.g., material inspection), biology, and
archeology. Modalities such as X-Ray Computed Tomography (CT) and
Magnetic Resonance Imaging (MRI) produce high-resolution volumetric
scans on a daily basis. It seems counter-intuitive that even though
such a wealth of data is available, the production of an illustration
should still require a mainly manual and time-consuming process. This
talk is devoted to the computer-assisted generation of illustrations
directly from volumetric data using advanced visualization techniques.
The concept of a direct volume illustration system is introduced for
this purpose. Instead of requiring an additional modeling step, this
system allows the designer of an illustration to work directly on the
measured data. Abstraction, a key component of traditional
illustrations, is used in order to reduce visual clutter, emphasize
important structures, and reveal hidden detail. Low-level abstraction
techniques are concerned with the appearance of objects and allow
flexible artistic shading of structures in volumetric data sets.
High-level abstraction techniques control which objects are visible.
For this purpose, novel methods for the generation of ghosted and
exploded views are introduced. The visualization techniques presented
in this talk employ the features of current graphics hardware to
achieve interactive performance. The resulting system allows the
generation of expressive illustrations directly from volumetric data
with applications in medical training, patient education, and
scientific communication.
Angelegt am 08.10.2008 von Evelyn Egelkamp
Geändert am 13.10.2008 von Evelyn Egelkamp
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