Results 11 to 20 of about 20,100 (287)

Modelling with implicit surfaces that interpolate [PDF]

open access: yesACM Transactions on Graphics, 2002
We introduce new techniques for modelling withinterpolating implicit surfaces. This form of implicit surface was first used for problems of surface reconstruction and shape transformation, but the emphasis of our work is on model creation. These implicit surfaces are described by specifying locations in 3D through which the surface should pass, and ...
Greg Türk, James F O'Brien
exaly   +9 more sources

Isotopic meshing of implicit surfaces [PDF]

open access: yesVisual Computer, 2006
Implicit surfaces are given as the zero set of a function F : R3→R. Although several algorithms exist for generating piecewise linear approximations, most of these are based on a user-defined stepsize or bounds to indicate the precision, and therefore cannot guarantee topological correctness. Interval arithmetic provides a mechanism to determine global
Gert Vegter
exaly   +3 more sources

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   +5 more sources

Inverse design mechanical metamaterials with dual load-bearing and heat-transfer capabilities. [PDF]

open access: yesPLoS ONE
Metamaterials can achieve extraordinary properties unattainable in natural materials through sophisticated artificial structural design. This study constructs novel tri-periodic minimal surface configurations based on fundamental structures. By employing
Yuhao Liu
doaj   +2 more sources

High-Precision 3D Reconstruction in Complex Scenes via Implicit Surface Reconstruction Enhanced by Multi-Sensor Data Fusion [PDF]

open access: yesSensors
In this paper, we investigate implicit surface reconstruction methods based on deep learning, enhanced by multi-sensor data fusion, to improve the accuracy of 3D reconstruction in complex scenes.
Quanchen Zhou   +3 more
doaj   +2 more sources

CartiSurface: implicit surface reconstruction for anatomically-aware cartilage thickness mapping in knee MRI [PDF]

open access: yesnpj Digital Medicine
Quantitative analysis of cartilage thickness plays a pivotal role in the early diagnosis and monitoring of knee osteoarthritis (OA). However, conventional segmentation-based approaches often produce noisy and anatomically inconsistent thickness maps ...
Pengyun Wang   +8 more
doaj   +2 more sources

Implicit curves and surfaces in CAGD

open access: yesIEEE Computer Graphics and Applications, 1993
The role of implicit curves and surfaces in computer-aided geometric design (CAGD) are described. The ways in which the study of implicit algebraic curves and surfaces draws on algebraic geometry are reviewed. The implicitization of parametric curves and surfaces, parameterization of implicits, and techniques used to circumvent conversions between ...
exaly   +3 more sources

Improved Compressive Properties of Lattice Structure Based on an Implicit Surface Hybrid Optimization Design Method via Selective Laser Melting

open access: yesMetals, 2022
In recent years, the lattice structure produced by additive manufacturing is a type of metal foam that has been increasingly investigated for its unique mechanical properties.
Xiong Xiao   +9 more
doaj   +1 more source

ImplicitPCA: Implicitly-proxied parametric encoding for collision-aware garment reconstruction

open access: yesGraphical Models, 2023
The emerging remote collaboration in a virtual environment calls for quickly generating high-fidelity 3D humans with cloth from a single image. To estimate clothing geometry and topology, parametric models are widely used but often lack details ...
Lan Chen   +6 more
doaj   +1 more source

Combination Constraints of Multiple Fields for Implicit Modeling of Ore Bodies

open access: yesApplied Sciences, 2021
In this paper, we introduce combination constraints for modeling ore bodies based on multiple implicit fields interpolation. The basic idea of the method is to define a multi-labeled implicit function that combines different sub-implicit fields by the ...
De-Yun Zhong   +2 more
doaj   +1 more source

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