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» Algorithms for Triangulated Terrains
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COMPGEOM
2003
ACM
15 years 11 months ago
Restricted delaunay triangulations and normal cycle
We address the problem of curvature estimation from sampled smooth surfaces. Building upon the theory of normal cycles, we derive a definition of the curvature tensor for polyhed...
David Cohen-Steiner, Jean-Marie Morvan
VMV
2000
115views Visualization» more  VMV 2000»
15 years 7 months ago
Metrical Calibration of a Phase Measuring Triangulation Sensor
Metrical calibration is very critical for the accuracy of a 3d sensor. Measuring uncertainty of about 1:3000 of the z-range requires a calibration accuracy of about 1:104 . Severa...
Klaus Veit, Gerd Häusler
GIS
2004
ACM
16 years 7 months ago
Time-dependent affine triangulation of spatio-temporal data
In the geometric data model [6], spatio-temporal data are modelled as a finite collection of triangles that are transformed by time-dependent affinities. To facilitate querying an...
Sofie Haesevoets, Bart Kuijpers
DCG
2008
86views more  DCG 2008»
15 years 6 months ago
Reconstruction Using Witness Complexes
We present a novel reconstruction algorithm that, given an input point set sampled from an object S, builds a one-parameter family of complexes that approximate S at different sca...
Leonidas J. Guibas, Steve Oudot
SIBGRAPI
2003
IEEE
15 years 11 months ago
A Topological Framework for Advancing Front Triangulation
In this paper we study advancing front methods for surface reconstruction. We propose a topological framework based on handlebody theory to implement such methods in a simple and r...
Esdras Soares de Medeiros Filho, Luiz Velho, H&eac...