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Institut für Computergraphik und Algorithmen
Abteilung für Computergraphik


Michael Wimmer, Georg Zotti, Stefan Jeschke

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Welcome to CESCG 2007!

CESCG, the Central European Seminar on Computer Graphics, is entering a new decade! After the wonderful festivities last year celebrating the 10th anniversary of CESCG, we are off for a fresh start and looking for new challenges in a new decade!

The long history of CESCG has started in 1997 in a medium-sized lecture room in Bratislava, bringing together students from Bratislava, Brno, Budapest, Graz, Prague, and Vienna. The idea found wide appraisal and the seminar moved to the beautiful castle of Budmerice, where it was held for 8 consecutive years, constantly growing in size and attraction. It was just in the 10th anniversary year 2006 that CESCG had to take a detour to move to Častá-Papiernička Centre. Although this proved a more than adequate venue, we are happy that the new decade of CESCG sees us back in Budmerice castle, which we have grown to love so much!

Who are the CESCG heroes who made this year's seminar happen? In no particular order -- because many people were involved equally -- we would like to thank the organizers from Vienna, especially Stefan Jeschke for taking care of the complete reviewing process. We are very thankful to the CESCG organizers from Bratislava, mainly Andrej Ferko, always an inspiration to CESCG; and Stanislav Stanek, Roman Durikovič, Zdenka Slobodová, Martin Samuelčík and Pavla Ňuňuková for the excellent preparations and on-site organization.

The main idea of CESCG is to bring students of computer graphics together across boundaries of universities and countries. Therefore we are proud to state that we have achieved again a very high number of 16 participating institutions and a very tight time schedule of 24 valuable student works and two invited talks. We are also proud that for the first time, students from Freiburg University, Germany, joined the seminar. We also welcome groups from Bratislava (UK and STU), Slovakia; Brno, Plzeň and Prague, Czech Republic; Budapest, Hungary; Bonn, Germany; Graz, Hagenberg and Vienna (TU and VRVis), Austria; Szczecin, Poland; Maribor, Slovenia; and Sarajevo (Univ. and SST), Bosnia and Herzegovina.

Due to the positive experience with an enlarged program committee established last year, we again assembled a large International Program Committee of 14 members. This allowed us to have each paper reviewed by two IPC members during the informal reviewing process. We would like to thank the members of the IPC for their contribution to the reviewing process. The IPC of CESCG 2007 consists of:

Alan ChalmersLászló Szirmay-Kalos
Andrej FerkoMartin Šperka
Markus GrabnerMichael Wimmer
Helwig HauserPavel Zemcík
Reinhard KleinBorut Žalik
Ivana KolingerováJiří Bittner
Radoslaw MantiukSelma Rizvic

Invited talks this year are held by Ivana Kolingerová from the University of West Bohemia, Czech Republic, about Triangulations for Computer Graphics Applications, and Mateu Sbert from the University of Girona, Spain, about Applications of Information Theory to Computer Graphics. The seminar features an exhibition Aesthetics in Computation organized by Peter Borovský. The seminar is held under the auspices of the Austrian Ambassador to Slovakia, His Excellency Dr. Helmut Wessely, and is co-organized with the Spring Conference on Computer Graphics (SCCG), which takes place right after the seminar.

The organization of a seminar where there are de facto no expenses for the students requires funding. We are very thankful to the sponsors of CESCG 2007:

  • Ministry of Education of the Slovak Republic;
  • SOFTIP, a Slovak information technology provider;
  • NOKIA, connecting people;
  • Eurographics, the European Association for Computer Graphics;
  • VRVis, a research center for virtual reality and visualization in Vienna;
  • A K Peters, a publisher of scientific books;
  • Caligari Corporation, 3D modeling and rendering software;

Please note that the electronic version of these proceedings is also available at

April 2007,
Michael Wimmer
Jiří Hladůvka
Georg Zotti

Rendering I: GPU Techniques
Kristóf Ralovich
(Budapest, Hungary)
[.pdf-file] Implementing and Analyzing a GPU Ray Tracer
Dawid Pająk
(Szczecin, Poland)
[.pdf-file] General-Purpose Computation Using Graphics Hardware for Fast HDR image Processing
Juraj Konečný
(Bratislava, Slovakia)
[.pdf-file] Catmull-Clark Subdivision Surfaces on GPU
Bojan Rupnik
(Maribor, Slovenia)
[.pdf-file] Rendering Large Terrains in Real-Time
Rendering II: Natural Phenomena and Light
Ines Stuppacher, Peter Supan
(Hagenberg, Austria)
[.pdf-file] Rendering of Water Drops in Real-Time
Miroslav Mikšík
(Prague, Czech Republic)
[.pdf-file] Implementing Lightcuts
Marc Gissler
(Freiburg, Germany)
[.pdf-file] Simulation and Visualization of topology-changing plastic material
Peter Horvath, Dávid Illés
(Budapest, Hungary)
[.pdf-file] SPH-Based Fluid Simulation for Special Effects
Potpourri (Visualization, Geometry and GUIs)
Martina Málková
(Plzen, Czech Republic)
[.pdf-file] A new core-based morphing algorithm for polygons
Marc Streit
(Graz, Austria)
[.pdf-file] Interactive Visualisation of Complex Graphs
Juraj Švec
(Prague, Czech Republic)
[.pdf-file] Alternative GUI for Interaction in Mobile Environment
Jürgen Platzer
(Vienna, Austria)
[.pdf-file] Enhancing Interactive Visual Data Analysis by Statistical Functionality
Volume Graphics
Oliver Klar
(Vienna, Austria)
[.pdf-file] Interactive GPU-based Segmentation of Large Medical Volume Data with Level-Sets
Radek Kubíček
(Brno, Czech Republic)
[.pdf-file] Visualization of the Marked Cells of Model Organism
Tobias Gross
(Graz, Austria)
[.pdf-file] 2D/3D Registration of X-Ray and CT Data Using Accelerated Volume Rendering and Gradient Calculation
Martin Haidacher
(Vienna, Austria)
[.pdf-file] Importance-Driven Rendering in Interventional Imaging
VR and Multimedia
Vedad Hulusic
(Sarajevo, Bosnia-Herzegovina)
[.pdf-file] Optimization threshold in Sarajevo City Hall virtual model for Efficient Web Presentation
Petr Brož
(Plzen, Czech Republic)
[.pdf-file] Exact and heuristic path planning methods for a virtual environment
Belma Ramić
(Sarajevo, Bosnia-Herzegovina)
[.pdf-file] Digital 3D Postcards of Heritage Sites in Bosnia and Herzegovina
Radoslav Buranský
(Bratislava, Slovakia)
[.pdf-file] Proposal and Evaluation of Mapping Hypermedia to 3D Sound Space
Image Processing
Tomáš Mikolov
(Brno, Czech Republic)
[.pdf-file] Color Reduction Using K-Means Clustering
Marcel Körtgen
(Bonn, Germany)
[.pdf-file] Robust Automatic Registration of Range Images with Reflectance
Igor Jánoš
(Bratislava, Slovakia)
[.pdf-file] Multi-CPU video processing
Maciej Laskowski
(Szczecin, Poland)
[.pdf-file] Detection of light sources in digital photographs
Invited Talks
Ivana Kolingerová
(Czech Republic)
[.pdf-file] Triangulations for computer graphics applications
[.ppt-file] [.avi-file] [.avi-file] [.avi-file] [.avi-file] [.avi-file]
Mateu Sbert
[.pdf-file] Applications of Information Theory to Computer Graphics


The 11th Central European Seminar on Computer Graphics is sponsored by the following companies:
SOFTIP NOKIA Ministry of Education of the Slovak Republic



Caligari SISp
Slovak Society for Computer Science
A K Peters Ltd.
our official partner this year: COFAX
and is organized under the auspices of the Austrian ambassador in Slovakia,
Dr. Helmut Wessely.

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