Avr 05

présentation Ricardo Uribe-Lobello

Dual-primal skeleton: a thinning scheme for vertex sets lying on a surface mesh

We present a new algorithm for the skeletonization of shapes lying on surface meshes, which is based on a thinning scheme with a granularity that is twice as fine as that of other thinning methods, since the proposed approach uses dual-primal iterations in the region of interest to perform the skeleton extraction. This dual operator is built on specific construction rules, and it is applied until idempotency, which provides a better geometric positioning of the skeleton compared to other thinning methods. Moreover, the skeleton has the property of ensuring the same topological guarantees as other homotopic thinning approaches: the skeleton is thin, connected and can include Y-branches and cycles if the input region contains holes.

05 avril 2019

Sep 14

présentation Zeineb El Khalfi

Nous présentons des résultats sur l’extension des raffinements lexicographiques aux problèmes de décision séquentiels, en particulier aux Arbres de Décision et aux Processus Décisionnels de Markov possibilistes. Une ouverture vers des problèmes géométriques typiques de l’équipe G-Mod est faite.