Results 71 to 80 of about 18,509 (183)

A new method for voxelizing mesh phantoms through cross-sectional images

Brazilian Journal of Radiation Sciences
Exposure Computational Models (ECMs) utilize algorithms for ionizing radiation sources and Monte Carlo (MC) codes to simulate radiation transport, its interaction with matter, and to assess the energy deposited in volumes of interest (VOIs) represented ...
Raniele Costa de Matos dos Santos, Whoody Alem Wanderley Araripe Farias, José Wilson VIEIRA, Pedro Henrique Avelino de ANDRADE, Jefferson Melo Gonçalves PENA, Vanildo Júnior de Melo LIMA, Fernando Roberto de Andrad LIMA   +6 more
doaj   +1 more source

An Effective Method for Slicing Triangle Meshes Using a Freeform Curve

Mathematics
Slicing 3D polygonal meshes is a fundamental operation in various applications such as virtual surgery, garment simulation, and game development. Existing methods primarily slice meshes using either a single line or a set of line segments approximating a
Seung-Yong Lee, Seong-Hyeon Kweon, Seung-Hyun Yoon   +2 more
doaj   +1 more source

Simple and Robust Boolean Operations for Triangulated Surfaces

, 2013
Boolean operations of geometric models is an essential issue in computational geometry. In this paper, we develop a simple and robust approach to perform Boolean operations on closed and open triangulated surfaces.
Mei, Gang, Tipper, John C.
core  

A Review of Recent Advances in Discretization Methods, a Posteriori Error Analysis, and Adaptive Algorithms for Numerical Modeling in Geosciences

Oil & Gas Science and Technology, 2014
Two research subjects in geosciences which lately underwent significant progress are treated in this review. In the first part, we focus on one key ingredient for the numerical approximation of the Darcy flow problem, namely the discretization of ...
Di Pietro Daniele A., Vohralík Martin
doaj   +1 more source

A virtual element scheme for the time-fractional parabolic PDEs over distorted polygonal meshes

Alexandria Engineering Journal
We extend the virtual element method to the two-dimensional time-fractional parabolic PDE, characterized by a fractional derivative of order α∈(0,1) in time.
Zaffar Mehdi Dar, M Chandru
doaj   +1 more source

Reconstruction of 3D Object Shape Using Hybrid Modular Neural Network Architecture Trained on 3D Models from ShapeNetCore Dataset

Sensors, 2019
Depth-based reconstruction of three-dimensional (3D) shape of objects is one of core problems in computer vision with a lot of commercial applications.
Audrius Kulikajevas, Rytis Maskeliūnas, Robertas Damaševičius, Sanjay Misra   +3 more
doaj   +1 more source

Polygon Mesh Generation of Branching Structures [PDF]

, 2005
We present a new method for producing locally non intersecting polygon meshes of naturally branching structures. The generated polygon mesh follows the object's underlying structure as close as possible, while still producing polygon meshes that can be visualized efficiently on commonly available graphic acceleration hardware.
Jo Skjermo, Ole Christian Eidheim
openaire   +1 more source

NeuroTessMesh: A Tool for the Generation and Visualization of Neuron Meshes and Adaptive On-the-Fly Refinement

Frontiers in Neuroinformatics, 2017
Gaining a better understanding of the human brain continues to be one of the greatest challenges for science, largely because of the overwhelming complexity of the brain and the difficulty of analyzing the features and behavior of dense neural networks ...
Juan J. Garcia-Cantero, Juan J. Garcia-Cantero, Juan P. Brito, Juan P. Brito, Susana Mata, Susana Mata, Sofia Bayona, Sofia Bayona, Luis Pastor, Luis Pastor   +9 more
doaj   +1 more source

Revolution-bump mapping with texture function adjustment according to the geometry of the revolved object

Journal of Graphic Engineering and Design
Nowadays, 3D computer graphics are firmly anchored in our daily lives, extending across a multitude of distinct fields. Although each field follows its specific objectives, two major objectives are taken into consideration: realism and rendering speed ...
Anouar Ragragui, Adnane Ouazzani Chahdi, Amina Arbah, Hicham El Moubtahij, Akram Halli, Khalid Satori   +5 more
doaj   +1 more source

Adaptive fitting with a cubic spline over planar hierarchical quadrilateral meshes

AIMS Mathematics
Automatic fitting techniques are required in many industrial applications, for example instrument calibration, data analysis, geometric modeling, and reverse engineering.
Pengxiao Wang, Chongjun Li
doaj   +1 more source