Results 91 to 100 of about 7,016 (227)

Harmonic deformation of the Delaunay triangulation

open access: yes, 2009
Dado um processo de Poisson d-dimensional, construímos funções harmônicas na triangulação de Delaunay associada, com comportamento assintótico linear, como limite de um processo de harness sem ruído. Tais funções permitem que construamos uma nova imersão
Rafael de Mattos Grisi   +1 more
core   +1 more source

Delaunay triangulation programs on surface data. [PDF]

open access: yes, 2002
The Delaunay triangulation of a set of points in 3D can have size Θ(n2) in the worst case, but this is rarely if ever observed in practice. We compare three production-quality Delaunay triangulation programs on some 'real-world' sets of points lying on ...
Choi, Sunghee, Amenta, Nina
core   +2 more sources

Improved Jitter Elimination and Topology Correction Method for the Split Line of Narrow and Long Patches

open access: yesISPRS International Journal of Geo-Information, 2018
Extracting the split line of narrow and long patches is important for the generalization of land-use thematic data. There are two commonly used methods for extracting the split lines: One is based on Delaunay triangulation and the other is based on ...
Chengming Li   +4 more
doaj   +1 more source

Survey on differential estimators for 3d point clouds

open access: yesComputer Graphics Forum, EarlyView.
Abstract Recent advancements in 3D scanning technologies, including LiDAR and photogrammetry, have enabled the precise digital replication of real‐world objects. These methods are widely used in fields such as GIS, robotics, and cultural heritage. However, the point clouds generated by such scans are often noisy and unstructured, posing challenges for ...
Léo Arnal–Anger   +4 more
wiley   +1 more source

WALKING - BASED DELAUNAY TRIANGULATION

open access: yes, 2013
V diplomskem delu najprej opravimo kratek pregled različnih pristopov za tvorjenje Delaunayeve triangulacije, nato pa se osredotočimo na algoritem gradnje triangulacije s korakanjem.
Pevec, Amadej
core   +1 more source

Parallel constrained Delaunay triangulation [PDF]

open access: yes, 2013
In this paper we propose a new GPU method able to compute the 2D constrained Delaunay triangulation of a planar straight line graph consisting of points and segments. The method is based on an incremental insertion, taking special care to avoid conflicts
Coll Arnau, Narcís   +5 more
core  

Quantitative Metrics for Edge Bundling of Network Visualizations

open access: yesComputer Graphics Forum, EarlyView.
Abstract Edge bundling is widely used for reducing visual clutter in large 2D network and trajectory visualizations. Various edge bundling methods have been proposed, each producing qualitatively distinct outputs for the same data; however, few quantitative metrics exist for systematic evaluation. In this paper, we propose a set of quantitative metrics
M. Wallinger   +3 more
wiley   +1 more source

A Simple Grid‐Maps Pipeline: Restructured, Accelerated and Upgraded

open access: yesComputer Graphics Forum, EarlyView.
Abstract Grid maps – spatially arranged small multiples – are a powerful tool to show complex geospatial data. Meulemans et al. (2020) introduced a pipeline for computing high‐quality grid maps that are shaped roughly according to their containing geographic outlines.
W. Meulemans
wiley   +1 more source

Technology of 3d relief modelling based on Delaunay triangulation algorithms

open access: yesE3S Web of Conferences, 2019
This paper represents the algorithm of superimposing underwater relief and land relief basing on heterogeneous initial data with the use of Delaunay triangulation. As a result of superimposition a qualitative 3D relief model has been created.
Andrey Gachenko, Alexey Khmelnov
doaj   +1 more source

Geographical distribution of the Pinnated Bittern (Botaurus pinnatus): Update and seasonal movement pattern

open access: yesIbis, EarlyView.
The Pinnated Bittern Botaurus pinnatus (Ardeidae) is a widely distributed Neotropical wading bird whose distribution and seasonal status remain poorly resolved. Discrepancies among published literature, citizen science records and the range currently assumed by BirdLife International indicate that both its geographical distribution and migratory ...
Helon Simões Oliveira   +3 more
wiley   +1 more source

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