[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 26. Februar 2014, 13:15 Uhr, Raum P-701 
im Paulinum am Augustusplatz.


Wir hören einen Vortrag von:


Roxana Bujack
Abteilung für Bild- und Signalverarbeitung
Institut für Informatik
Universität Leipzig

mit dem Titel

"Moment Invariants for 2D Flow Fields Using Normalization"


zum Inhalt:

The analysis of 2D flow data is often guided by the search for 
characteristic structures with semantic meaning. One way to approach 
this question is to identify structures of interest by a human observer. 
The challenge then, is to find similar structures in the same or other 
datasets on different scales and orientations.

In this paper, we propose to use moment invariants as pattern 
descriptors for flow fields. Moment invariants are one of the most 
popular techniques for the description of objects in the field of image 
recognition. They have recently also been applied to identify 2D vector 
patterns limited to the directional properties of flow fields.

In contrast to previous work, we follow the intuitive approach of {\sl 
moment normalization}, which results in a complete and independent set 
of translation, rotation, and scaling invariant flow field descriptors. 
They also allow to distinguish flow features with different velocity 
profiles. We apply the moment invariants in a pattern recognition 
algorithm to a real world dataset and show that the theoretic results 
can be extended to discrete functions in a robust way.


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

Mit freundlichen Grüßen,
Patrick Oesterling