Colloquium Computing Science

 

 

Date:                            Monday, March 17 2008          

Speaker:                      Georgios Ouzounis

Room and time:           5161.0267 (Bernoulliborg), 16.00

 

 

 

Title:    Hyper-connectivity, operators and applications

 

 

Abstract:

 

Hyper-connectivity is a recent development in the field of mathematical morphology and the theory of connectivity. It is expressed, like ordinary connectivity, by means of classes which associate to specific operators. Hyper-connected operators however, lack cetain properties which leads to a weaker mathematical foundation as compared to ordinary connected operators. In the specific case of k-level hyper-connectivity, we bypass the practical implications of these constraints and provide the means to extract hyper-connected regions that do not associate to any partitioning scheme. This allows us to implement hyper-connected attribute filters that employ an improved scheme for connected component clustering using intensity rather than spatial criteria. The filters are implemented on the Max-Tree algorithm using the mask-based framework from our earlier work. We demonstrate their potential on 3D medical data-sets and compare our findings with the results obtained from existing connected attribute filters.

 

 

 

 

 

 

 

Colloquiumcoördinator is Prof.dr. M. Aiello, Dr. M. Biehl (e-mail: M.Biehl@cs.rug.nl)

www.cs.rug.nl/~biehl/Coll