Current Projects

• CSB-Project A4 (Center Systems Biology) - Signal Transduction

  The aim of this systems biology project is to visualize signal transduction processes in cells.

  We developed two visualization techniques: a schematic cartoon-like representation and microscope-like images to allow comparison with wetlab experiments. Glyphs are used for interactive rendering of over 100,000 proteins and other cell structures. The data to be visualized is generated by a particle-base Monte Carlo simulation.

  Accepted at IEEE Pacific Visualization Symposium 2009 (Paper).

  
  
  

  Ongoing research covers visualizing the signal front of a specific signal.

Completed Projects

• Panorama Maps with Non-linear Ray Tracing (2007)

  Non-linear Ray Tracing is used to generate panorama maps by minimizing occlusion. The viewing rays are deflected by the underlying terrain. Techniques of Berann, an Austrian cartograph, are employed in this work like progressive perspective, vertical exaggeration, and rotation and translation of features.

  Published at Graphite '07 (Paper).

  
  
  
  
• 3D Line Integral Convolution (2007)

  Our approach of view-dependent visualization tightly links the LIC generation with the volume rendering of the LIC result in order to avoid the computation of unnecessary LIC points. A range of illumination models is applied to the LIC streamlines: different codimension-2 lighting models as well as a novel gradient-based illumination model that relies on precomputed gradients and does not require any direct calculation of gradients after the LIC integral is evaluated. This 3D LIC method allows users to interactively explore 3D flow by means of high-quality, view-dependent, and adaptive LIC volume visualization.

  Published in IEEE Transactions on Visualization and Computer Graphics 2008.
  Accompanying material.

  
  
  
  
• Real-Time Rendering of Planets with Atmospheres (2007)
  
  
  
  
  
• Flight over Marsian Surface (2005)