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Plenary Lecture

Rapid Prototyping and Volumetric Data Processing

Professor Václav Skala
Fellow of the Eurographics Association
Center of Computer Graphics and Visualization
Department of Computer Science and Engineering
Faculty of Applied Sciences
University of West Bohemia
Univerzitni 8
CZ 206 14 Plzen, Czech Republic
E-mail: skala@kiv.zcu.cz
-also with-
Department of Computer Science
Faculty of Electrical Engineering and Computer Science
VSB-Technical University of Ostrava
17.listopadu 15/2172
CZ 708 33 Ostrava-Poruba, Czech Republic
E-mail: vaclav.skala@vsb.cz

Abstract: Rapid prototyping is a new technique for producing 3D physical objects. volumetric data are very often used in engineering and medical applications. Surface extraction methods for rapid prototyping differ from methods for visualization. This paper presents a pragmatic approach for generating data for rapid prototyping systems enabling production of physical models.
In visualization systems only a surface is usually generated regardless to the restrictions of the actual rapid prototyping systems, while in visualization it is necessary to accept physical properties of the physical rapid prototyping systems. CAD/CAM systems mostly rely on general tetrahedral meshes, while medical or industrial CT and MRI data are organized in structured rectangular regular meshes. This type data structures enables fast and robust data processing for visualization, while for the rapid prototyping more interaction of a user is needed.
The model representations based on a surface representation, mostly triangular meshes, or on volumetric data require very memory for storing and processing and therefore a specific techniques have to be used to reduce computational time and memory requirements for actual 3D printing of the object.

Brief Biography of the Speaker: Prof. Vaclav Skala is a Full professor of Computer Science at the University of West Bohemia, Plzen and VSB-Technical University Ostrava, Czech Republic. He received his ING.(equivalent of MSc.) degree in 1975 from the Institute of Technology in Plzen and CSc. (equivalent of Ph.D.) degree from the Czech Technical University in Prague in 1981. In 1996 he became a full professor in Computer Science. In 1997 the Center of Computer Graphics and Visualization (CCGV) was formally established and since then he is the Head of the CCGV in Plzen.
Prof.Vaclav Skala is an associate editor of The Visual Computer (Springer), Computers and Graphics (Elsevier), member of the Editorial Board fo Machine Graphics and Vision (Polish Academy of Sciences) and the Editor in Chief of the Journal of WSCG. He is a member of international program committees of prestigious conferences and workshops. He is a member of ACM SIGGRAPH, IEEE and Eurographics Association.
Prof.Vaclav Skala has published over 200 research papers at conferences and research journals. His current research interests are computer graphics and visualization, mathematics, especially geometrical algebra, algorithms and data structures.