Results 21 to 30 of about 66,203 (111)

A PDE Approach to Data-driven Sub-Riemannian Geodesics in SE(2) [PDF]

open access: yes, 2015
We present a new flexible wavefront propagation algorithm for the boundary value problem for sub-Riemannian (SR) geodesics in the roto-translation group $SE(2) = \mathbb{R}^2 \rtimes S^1$ with a metric tensor depending on a smooth external cost $\mathcal{
Bekkers, Erik J.   +3 more
core   +3 more sources

Spacelike surface families interpolating common asymptotic curves in Minkowski 3-space

open access: yesFrontiers in Physics
In this paper, we propose a method for constructing families of spacelike surfaces in Minkowski 3-spaceE13 that share Bertrand curves as asymptotic curves.
Areej A. Almoneef, Rashad A. Abdel-Baky
doaj   +1 more source

A Stable Higher Order Space-Time Galerkin Scheme for Time Domain Integral Equations

open access: yes, 2014
Stability of time domain integral equation (TDIE) solvers has remained an elusive goal for many years. Advancement of this research has largely progressed on four fronts: (1) Exact integration, (2) Lubich quadrature, (3) smooth temporal basis functions ...
Bağcı, H.   +5 more
core   +1 more source

A fast GPU Monte Carlo Radiative Heat Transfer Implementation for Coupling with Direct Numerical Simulation

open access: yes, 2018
We implemented a fast Reciprocal Monte Carlo algorithm, to accurately solve radiative heat transfer in turbulent flows of non-grey participating media that can be coupled to fully resolved turbulent flows, namely to Direct Numerical Simulation (DNS). The
Pecnik, Rene, Silvestri, Simone
core   +1 more source

An Overview of Rendering from Volume Data --- including Surface and Volume Rendering [PDF]

open access: yes, 1993
Volume rendering is a title often ambiguously used in science. One meaning often quoted is: `to render any three volume dimensional data set'; however, within this categorisation `surface rendering'' is contained.
Roberts, Jonathan C.
core   +2 more sources

Multi-cultural visualization : how functional programming can enrich visualization (and vice versa) [PDF]

open access: yes, 2006
The past two decades have seen visualization flourish as a research field in its own right, with advances on the computational challenges of faster algorithms, new techniques for datasets too large for in-core processing, and advances in understanding ...
Borgo, Rita   +3 more
core  

Deterministic Global 3D Fractal Cloud Model for Synthetic Scene Generation

open access: yesRemote Sensing
This paper describes the creation of a fast, deterministic, 3D fractal cloud renderer for the AFIT Sensor and Scene Emulation Tool (ASSET). The renderer generates 3D clouds by ray marching through a volume and sampling the level-set of a fractal function.
Aaron M. Schinder   +6 more
doaj   +1 more source

Classification-based point cloud denoising and 3D reconstruction of roadways

open access: yesMeitian dizhi yu kantan
ObjectiveThe point cloud denoising and 3D reconstruction of roadways serve as a key step in the digital modeling and analysis of roadways. However, the conventional algorithm based on single filtering fails to effectively remove the noise at varying ...
Denghong CHEN   +5 more
doaj   +1 more source

Immersive VR Visualizations by VFIVE. Part 1: Development

open access: yes, 2013
We have been developing a visualization application for CAVE-type virtual reality (VR) systems for more than a decade. This application, VFIVE, is currently used in several CAVE systems in Japan for routine visualizations.
Kageyama, Akira, Ohno, Nobuaki
core   +1 more source

A parallel Heap-Cell Method for Eikonal equations [PDF]

open access: yes, 2014
Numerous applications of Eikonal equations prompted the development of many efficient numerical algorithms. The Heap-Cell Method (HCM) is a recent serial two-scale technique that has been shown to have advantages over other serial state-of-the-art ...
Chacon, Adam, Vladimirsky, Alexander
core  

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