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» On Deletion in Delaunay Triangulations
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ESA
2004
Springer
117views Algorithms» more  ESA 2004»
15 years 3 months ago
Classroom Examples of Robustness Problems in Geometric Computations
The algorithms of computational geometry are designed for a machine model with exact real arithmetic. Substituting floating-point arithmetic for the assumed real arithmetic may c...
Lutz Kettner, Kurt Mehlhorn, Sylvain Pion, Stefan ...
ICCS
2004
Springer
15 years 3 months ago
Velocity Field Modelling for Pollutant Plume Using 3-D Adaptive Finite Element Method
Air pollution models usually start from the computation of the velocity field of a fluid. In this paper, we present a model for computing that field based on the contribution of...
Gustavo Montero, Rafael Montenegro, José Ma...
SMI
2003
IEEE
131views Image Analysis» more  SMI 2003»
15 years 3 months ago
Watermarking 2D Vector Maps in the Mesh-Spectral Domain
This paper proposes a digital watermarking algorithm for 2D vector digital maps. The watermark is a robust, informed-detection watermark to be used to prevent such abuses as an in...
Ryutarou Ohbuchi, Hiroo Ueda, Shuh Endoh
ICPR
2000
IEEE
15 years 2 months ago
Modeling Range Images with Bounded Error Triangular Meshes without Optimization
This paper presents a new technique for approximating range images by means of adaptive triangular meshes with a bounded approximation error and without applying optimization. Thi...
Angel Domingo Sappa, Miguel Angel García
CGI
2001
IEEE
15 years 1 months ago
Polygonizing Non-Uniformly Distributed 3D Points by Advancing Mesh Frontiers
30 digitization devices produce very large sets of 3 0 points sampled from the suqaces of the objects being scanned. A mesh construction procedure needs to be:upplied to derive po...
Indriyati Atmosukarto, Luping Zhou, Wee Kheng Leow...