The NeMeSi Project

Overview

The Nemesi project aims at enabling the interaction with complex datasets. In particular, the application focuses on the representation of and the interaction with non-manifold models, which can be interpreted as a collection of self-intersecting surfaces. An application handling such data is faced with two important challenges: the models are geometrically and topologically very complex.
Researchers in the computer graphics community attacked the first problem by constructing advanced multiresolution representations, thus enabling users to interact with very detailed surfaces. Additionally, the construction of multiresolution editing tools enabled the construction of efficient modeling frameworks.
However, we note that most of the research has been focused on two-manifold surfaces, thus neglecting the topological information of the input data. Therefore, these operators can potentially change the topology of the data which result in a loss of information. The Nemesi project attack this second problem by explicitly modeling non-manifolds and by constructing a collection of non-manifold operators. The main components of the framework comprise:

1. A flexible representation
2. A fairing framework
3. A collection of multiresolution techniques
4. A subdivision operator
5. A feature extraction technique

Click on the thumbnail below to view a few datasets modeled in our framework.

This project is the result of a collaboration between the Federal Institute of Technology (ETH) of Zurich, Switzerland and Schlumberger ATC of Austin, USA .

Contact information: Andreas Hubeli IFW C27.1 Computer Graphics Group Institute of Scientific Computing Federal Institute of Technology (ETH) CH - 8092 Zurich