Results 21 to 30 of about 20,100 (287)

Implicit modeling of narrow vein type ore bodies based on Boolean combination constraints

open access: yesScientific Reports, 2022
In this paper, we implement an automatic modeling method for narrow vein type ore bodies based on Boolean combination constraints. Different from the direct interpolation approach, we construct the implicit functions of the hanging wall and foot wall ...
Deyun Zhong   +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

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

Sat-Mesh: Learning Neural Implicit Surfaces for Multi-View Satellite Reconstruction

open access: yesRemote Sensing, 2023
Automatic reconstruction of surfaces from satellite imagery is a hot topic in computer vision and photogrammetry. State-of-the-art reconstruction methods typically produce 2.5D elevation data.
Yingjie Qu, Fei Deng
doaj   +1 more source

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

Computation of Implicit Representation of Volumetric Shells with Predefined Thickness

open access: yesAlgorithms, 2021
We propose and validate a method to find an implicit representation of a surface placed at a distance h from another implicit surface. With two such surfaces on either side of the original surface, a volumetric shell of predefined thickness can be ...
Martin Geier, Hussein Alihussein
doaj   +1 more source

Implicit Finite-Difference Scheme for a Duffing Oscillator with a Derivative of Variable Fractional Order of the Riemann-Liouville Type

open access: yesMathematics, 2023
The article considers an implicit finite-difference scheme for the Duffing equation with a derivative of a fractional variable order of the Riemann–Liouville type.
Valentine Aleksandrovich Kim   +2 more
doaj   +1 more source

Comment on: “A review of the complementary principle of evaporation: from the original linear relationship to generalized nonlinear functions” by Han and Tian (2020) [PDF]

open access: yesHydrology and Earth System Sciences, 2021
The paper by Han and Tian (2020) reviews the history of developments in the complementary relationship (CR) between actual and potential evaporation and introduces the generalized complementary principle (GCP) developed by the authors.
R. D. Crago   +3 more
doaj   +1 more source

Fast reliable interrogation of procedurally defined implicit surfaces using extended revised affine arithmetic. [PDF]

open access: yes, 2010
Techniques based on interval and previous termaffine arithmetic next term and their modifications are shown to provide previous term reliable next term function range evaluation for the purposes of previous termsurface interrogation.next term In this ...
Fryazinov, Oleg   +5 more
core   +1 more source

Control Modification of Grasp Force Covaries Agency and Performance on Rigid and Compliant Surfaces

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
This study investigated how modifications in the display of a computer trace under user control of grasp forces can co-modulate agency (perception of control) and performance of grasp on rigid and compliant surfaces.
Raviraj Nataraj   +3 more
doaj   +1 more source

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