Results 21 to 30 of about 191,849 (199)

Splitting a Delaunay Triangulation in Linear Time [PDF]

open access: yes, 2001
Computing the Delaunay triangulation of n points requires usually a minimum of (n log n) operations, but in some special cases where some additional knowledge is provided, faster algorithms can be designed.
Olivier Devillers   +17 more
core   +6 more sources

Delaunay triangulation based image enhancement for echocardiography images [PDF]

open access: yes, 2009
A novel image enhancement approach for automatic echocardiography image processing is proposed. The main steps include undecimated wavelet based speckle noise reduction, edge detection, followed by a regional enhancement process that employs Delaunay ...
Ahanathapillai, V.   +2 more
core   +3 more sources

About Some Localization Problems in Delaunay Triangulations

open access: yesМоделирование и анализ информационных систем, 2015
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
doaj   +3 more sources

Formal study of plane Delaunay triangulation [PDF]

open access: yes, 2010
International audienceThis article presents the formal proof of correctness for a plane Delaunay triangulation algorithm. It consists in repeating a sequence of edge flippings from an initial triangulation until the Delaunay property is achieved.
Yves Bertot   +3 more
core   +7 more sources

Exploration of nature-based biomimetic approach in landscape architectural design: parametric study of candelabra model design

open access: yesVisual Computing for Industry, Biomedicine, and Art, 2020
This research provides an exploration of a biomimetic approach in the process of designing a candelabra model using linear shaped leaves of a Bell flower. The design process described in this research contains two steps: biological and geometrical.
Biljana S. Jović, Anđela D. Mitić
doaj   +1 more source

Constrained Construction of Planar Delaunay Triangulations without Flipping

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2018
The construction of Voronoi diagrams and Delaunay triangulations finds wide application in many branches of science. Delaunay triangulations have properties which make them more desirable than other triangulations for the same node set.
Vera V Galishnikova, Peter Jan Pahl
doaj   +1 more source

A Boundary Construction Algorithm for a Complex Planar Point Set

open access: yesComplexity, 2021
It is difficult to extract the boundary of complex planar points with nonuniform distribution of point density, concave envelopes, and holes. To solve this problem, an algorithm is proposed in this paper.
Zhenxiu Liao, Guodong Shi
doaj   +1 more source

Implementing Data-Dependent Triangulations with Higher Order Delaunay Triangulations

open access: yesISPRS International Journal of Geo-Information, 2017
The Delaunay triangulation is the standard choice for building triangulated irregular networks (TINs) to represent terrain surfaces. However, the Delaunay triangulation is based only on the 2D coordinates of the data points, ignoring their elevation ...
Natalia Rodríguez, Rodrigo I. Silveira
doaj   +1 more source

Exact and heuristic algorithms for Space Information Flow. [PDF]

open access: yesPLoS ONE, 2018
Space Information Flow (SIF) is a new promising research area that studies network coding in geometric space, such as Euclidean space. The design of algorithms that compute the optimal SIF solutions remains one of the key open problems in SIF.
Alfred Uwitonze   +4 more
doaj   +1 more source

Distributed Kinetic Delaunay triangulation [PDF]

open access: yes, 2005
This paper proposes a distributed algorithm to maintain the Delaunay triangulation of moving points. We assume that every point is a processor which can only communicate with the adjacent points connected by edges in the Delaunay triangulation.
유태원   +3 more
core   +1 more source

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