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- Michiel Schaap, Coert Metz, +27 authors Wiro J. Niessen
- Medical Image Analysis
- 2009

Efficiently obtaining a reliable coronary artery centerline from computed tomography angiography data is relevant in clinical practice. Whereas numerous methods have been presented for this purpose,â€¦ (More)

- Jarek Rossignac, Andrzej Szymczak
- Comput. Geom.
- 1999

The Edgebreaker compression (Rossignac, 1999; King and Rossignac, 1999) is guaranteed to encode any unlabeled triangulated planar graph of t triangles with at most 1 .84t bits. It stores the graph asâ€¦ (More)

- Lawrence Ibarria, Peter Lindstrom, Jarek Rossignac, Andrzej Szymczak
- Comput. Graph. Forum
- 2003

We present a simple method for compressing very large and regularly sampled scalar fields. Our method is particularly attractive when the entire data set does not fit in memory and when the samplingâ€¦ (More)

- Andrzej Szymczak, Jarek Rossignac
- Symposium on Solid Modeling and Applications
- 1999

Standard representa&,ions of irregular finite element meshes combine vertex data (sample coordina&es and node values) and connectivity (tetrahedron-vertex incidence). Connectivity specifiesâ€™ how theâ€¦ (More)

Edgebreaker is a simple technique for compressing 3D triangle meshes. We introduce here a new formulation, which leads to a simple implementation. We describe it in terms of a simple data structure,â€¦ (More)

- Davis King, Jarek Rossignac, Andrzej Szymczak
- ArXiv
- 1999

Applications that require Internet a ccess to remote 3D datasets are often limited by the storage costs of 3D models. Several compression methods are available to address these limits for objectsâ€¦ (More)

- HÃ©lio Lopes, Geovan Tavares, Jarek Rossignac, Andrzej Szymczak, Alla Safonova
- Symposium on Solid Modeling and Applications
- 2002

The Edgebreaker is an efficient scheme for compressing triangulated surfaces. A surprisingly simple implementation of Edgebreaker has been proposed for surfaces homeomorphic to a sphere. It uses theâ€¦ (More)

- Andrzej Szymczak, Davis King, Jarek Rossignac
- Comput. Geom.
- 2001

One of the most natural measures of regularity of a triangular mesh homeomorphic to the two-dimensional sphere is the fraction of its vertices having degree 6. We construct a linear-time connectivityâ€¦ (More)

- Andrzej Szymczak, Jarek Rossignac
- Computer-Aided Design
- 2000

Standard representations of irregular finite element meshes combine vertex data (sample coordinates and node values) and connectivity (tetrahedronâ€“vertex incidence). Connectivity specifies how theâ€¦ (More)

- Andrzej Szymczak
- 1995

Let f be a continuous map of a locally compact metric space X into itself. Suppose that S is an isolated invariant set with respect to f being a disjoint union of a xed nite number of compact sets.â€¦ (More)