[Forschungsseminar-BSV] Forschungsseminar Computergrafik, Bildverarbeitung und Visualisierung

[Patrick Oesterling]

E I N L A D U N G

zum Forschungsseminar Computergrafik, Bildverarbeitung und 
Visualisierung am Mittwoch, den 12. Juni 2013, 13:15 Uhr, Raum P-701 im 
Paulinum am Augustusplatz.


Wir hören zwei Kurzvorträge (jeweils 12 Minuten + Diskussion) als 
Probevortrag für die Eurovis 2013 von:


Mathias Goldau
Universität Leipzig

mit dem Titel

"Hierachical Poisson-Disk Sampling for Fiber Stipples "


zum Inhalt:

To understand neural tracts of the brain, neuroscientists use 
visualizations of diffusion data. Fiber stippling – a technique inspired 
by illustrations – accomodates probabilistic tracts, main diffusion 
direction, and anatomical context in the same slice image. It uses 
stratified sampling to place stipples, but this can result in overlaps 
and undersampled areas that distort the perception of tract probability. 
Moreover, when changing slices in an interactive setting, resampling 
leads to visual noise that distracts from real changes in the data. In 
this paper, we propose to use Poisson-disk samplings to ensure adequate 
pattern perception inside slices and a hierarchy of samplings to ensure 
coherence among slices. We also port the algorithm to the GPU to achieve 
interactive frame rates. Our modifications are appreciated by 
neuroscientists, who can now investigate white-matter structures more 
confidently.


und:

Steven Schlegel
Universität Leipzig

mit dem Titel

"Determining and Visualizing Potential Sources of Floods"


zum Inhalt:

In this paper, we visually analyze spatio-temporal patterns of different 
hydrologic parameters relevant for flooding. On the basis of data from 
climate simulations with a high resolution regional atmosphere model, 
several extreme events are selected for different river catchments in 
Germany. By visually comparing the spatial distribution of the main 
contributions to the run-off along with their temporal evolution for a 
time period in the 20th and the 21th century, impacts of climate change 
on the hydrological cycle can be identified.



Alle Interessierten sind im Namen von Prof. Dr. Scheuermann herzlich 
eingeladen.

Mit freundlichen Grüßen,
Patrick Oesterling