Results 11 to 20 of about 49,371 (261)

Implicit surfaces that interpolate [PDF]

open access: yesProceedings International Conference on Shape Modeling and Applications, 2002
Implicit surfaces are often created by summing a collection of radial basis functions. Researchers have begun to create implicit surfaces that exactly interpolate a given set of points by solving a simple linear system to assign weights to each basis function.
Greg Turk   +3 more
openaire   +3 more sources

LIMOFilling: Local Information Guide Hole-Filling and Sharp Feature Recovery for Manifold Meshes

open access: yesRemote Sensing, 2022
Manifold mesh, a triangular network for representing 3D objects, is widely used to reconstruct accurate 3D models of objects structure. The complexity of these objects and self-occlusion, however, can cause cameras to miss some areas, creating holes in ...
Guohua Gou   +6 more
doaj   +1 more source

MDISN: Learning multiscale deformed implicit fields from single images

open access: yesVisual Informatics, 2022
We present a multiscale deformed implicit surface network (MDISN) to reconstruct 3D objects from single images by adapting the implicit surface of the target object from coarse to fine to the input image.
Yujie Wang   +3 more
doaj   +1 more source

Explicit and Implicit Finite -Volume Methods for Depth Averaged Free-Surface Flows [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2020
In recent years, much progress has been made in solving free-surface flow variation problems in order to prevent flood environmental problems in natural rivers.
Evangelia D. Farsirotou   +2 more
doaj   +1 more source

Isotopic implicit surface meshing [PDF]

open access: yesProceedings of the thirty-sixth annual ACM symposium on Theory of computing, 2004
This paper algorithmically solves the problem of finding an approximating isotopic simplicial surface for a compact regular level set \([f=0]\) of a \(C^2\) function \(f\) defined in space. This topic is highly relevant for computing and visualization, unfortunately the authors mention that they have not yet implemented their algorithm.
Boissonnat, Jean-Daniel   +2 more
openaire   +4 more sources

Implicit meshes for surface reconstruction [PDF]

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2006
Deformable 3D models can be represented either as traditional explicit surfaces, such as triangulated meshes, or as implicit surfaces. Explicit surfaces are widely accepted because they are simple to deform and render, but fitting them involves minimizing a nondifferentiable distance function.
Slobodan Ilic, Pascal Fua
openaire   +3 more sources

Solution Optimization of RBF Interpolation for Implicit Modeling of Orebody

open access: yesIEEE Access, 2020
To interpolate large drillhole data sets efficiently in implicit modeling of orebody, we optimize the solution of the RBF equation based on the two-level domain decomposition method.
Deyun Zhong, Liguan Wang
doaj   +1 more source

IMPLICIT THREE-DIMENSIONAL GEO-MODELLING BASED ON HRBF SURFACE [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
Three-dimensional (3D) geological models are important representations of the results of regional geological surveys. However, the process of constructing 3D geological models from two-dimensional (2D) geological elements remains difficult and time ...
J. Gou, W. Zhou, L. Wu
doaj   +1 more source

Implicit Surface Modeling from Imprecise Point Clouds [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013
In applying optical methods for automated 3D indoor modelling, the 3D reconstruction of objects and surfaces is very sensitive to both lighting conditions and the observed surface properties, which ultimately compromise the utility of the acquired 3D ...
E. Funk   +3 more
doaj   +1 more source

Three-dimensional geological implicit surface reconstruction based on intermediate contour morphological interpolation

open access: yes地质科技通报, 2023
Objective In three-dimensional morphological reconstruction of complex geological surfaces, the sparse geological section data cannot meet the modelling requirements.
Quan Wang, Yanhong Zou
doaj   +1 more source

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