Results 11 to 20 of about 7,016 (227)
About Some Localization Problems in Delaunay Triangulations
We study some problems of nodes localization in a Delaunay triangulation and problem-solving procedures. For the problem of the set of nodes the computationally efficient approach that uses Euclidean minimum spanning tree of Delaunay triangulation is ...
N. F. Dyshkant
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Parallelism-Oriented Dynamic Incremental Delaunay Triangulation Algorithm
Delaunay triangulation is a main topic in computer graphics. Various types of new requirements have appeared during the development of parallel triangulation algorithms, e.g., updating the triangulation incrementally given a set of increasing points ...
YANG Haoyu, LIU Li, ZHANG Cheng, YU Hao
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Unsupervised Machine Learning for Improved Delaunay Triangulation
Physical oceanography models rely heavily on grid discretization. It is known that unstructured grids perform well in dealing with boundary fitting problems in complex nearshore regions.
Tao Song +7 more
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A short proof of the toughness of Delaunay triangulations
We present a self-contained short proof of the seminal result of Dillencourt (SoCG 1987 and DCG 1990) that Delaunay triangulations, of planar point sets in general position, are 1-tough.
Ahmad Biniaz
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THE EXPECTED EXTREMES IN A DELAUNAY TRIANGULATION [PDF]
We give an expected-case analysis of Delaunay triangulations. To avoid edge effects we consider a unit-intensity Poisson process in Euclidean d-space, and then limit attention to the portion of the triangulation within a cube of side n1/d. For d equal to two, we calculate the expected maximum edge length, the expected minimum and maximum angles, and ...
Marshall W. Bern +2 more
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Improved Fingerprint Indexing Based on Extended Triangulation
A simple fingerprint identification scheme compares an input fingerprint with all the fingerprints in the database to find any matching fingerprint. That is, the simple matching method considers all fingerprints in the database as candidates for a given ...
Sanghoon Lee, Ik Rae Jeong
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Higher order Delaunay triangulations [PDF]
The authors introduce a \(k-\)OD triangulation in terms of some given number \(k\) of points. This generalizes the well known Delaunay triangulation [see \textit{L. P. Chew}, Algorithmica 4, No.~1, 97-108 (1989; Zbl 0664.68042)]. An efficient way to compute all useful \(k-\)OD edges of a point set is given.
Joachim Gudmundsson +2 more
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An Algorithm Of Semi-Delaunay Triangulation Of Points Cloud Scattered On Surface
The purpose of the paper is to generalize the Delaunay triangulation onto surfaces. A formal definition and appropriate algorithm are presented. Starting from plane domain Delaunay triangulation definition a theoretical approach is evolved which is a ...
Jan Kucwaj
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On deletion in Delaunay triangulations [PDF]
This paper presents how the space of spheres and shelling may be used to delete a point from a d-dimensional triangulation efficiently. In dimension two, if k is the degree of the deleted vertex, the complexity is O(k log k), but we notice that this number only applies to low cost operations, while time consuming computations are only done a linear ...
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Improved Routing on the Delaunay Triangulation
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Nicolas Bonichon +5 more
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