Results 31 to 40 of about 2,635,657 (307)

A Finite Element Method for Level Sets [PDF]

open access: yes, 2009
Level set methods have recently gained much popularity to capture discontinuities, including their possible propagation. In this contribution we present a finite element approach for solving the governing equations of level set methods. After a review of the governing equations, the initialisation of the level sets, the discretisation on a finite ...
Valance, S.   +3 more
openaire   +1 more source

Set Mapping in the Method of Imprecision [PDF]

open access: yes, 2003
The Method of Imprecision, or MoI, is a semi-automated set-based approach which uses mathematics of fuzzy sets to aid the designer making decisions with imprecise information in the preliminary design stage.
Wang, Xiaoou
core   +1 more source

Left-ventricle myocardium segmentation using a coupled level-set with a priori knowledge [PDF]

open access: yes, 2006
This paper presents a coupled level-set segmentation of the myocardium of the left ventricle of the heart using a priori information. From a fast marching initialisation, two fronts representing the endocardium and epicardium boundaries of the left ...
Lynch, Michael   +2 more
core   +1 more source

A Computational Model of Thrombus Growth Based on Level Set Method

open access: yesIEEE Access, 2021
The computational model of thrombosis is of great importance that decides the simulation performance. In the present study, a hybrid particle-continuum model with plasma, vascular wall, and thrombus being continuum material and platelets being discrete ...
Chaoqing Ma   +6 more
doaj   +1 more source

Multi-Scale Adaptive Level Set Segmentation Method Based on Saliency

open access: yesIEEE Access, 2019
Image segmentation is an important research of computer vision. Due to the effects of intensity inhomogeneity, target edge and background complex, it is still challenging to achieve effective segmentation of target adaptively.
Zhang Dan   +3 more
doaj   +1 more source

Level Set Method Combing with Shape Prior for Intensity-texture Image Segmentation [PDF]

open access: yesJisuanji gongcheng, 2018
Traditional level set methods for image segmentation cannot deal with the efficiency segmentation of intensity-texture image problem,which consider more of the underlying data and ignore the high-level semantic features.Aiming at this problem,this paper ...
WANG Ti,CHEN Jian,ZENG Lei,TONG Li,YAN Bin
doaj   +1 more source

Topology Optimization of an Aerospace Bracket: Numerical and Experimental Investigation

open access: yesApplied Sciences, 2023
The integration of topology optimization into additive manufacturing provides unmatched possibilities for the sustainable manufacturing of lightweight, intricate, custom parts with less material at a lower production time and cost.
Onyekachi Okorie   +3 more
doaj   +1 more source

A Form Finding Method for Arch Bridges Using Parametric Level Set Method

open access: yesAdvances in Civil Engineering, 2018
Topology optimization has developed rapidly in the past three decades; as a creative and efficient optimization technique, it has been applied in engineering fields of aerospace and mechanical. However, there are a few attempts in bridge form design.
Yadong Shen   +4 more
doaj   +1 more source

A novel combined level set model for automatic MR image segmentation

open access: yesCurrent Directions in Biomedical Engineering, 2020
Medical image processing comes along with object segmentation, which is one of the most important tasks in that field. Nevertheless, noise and intensity inhomogeneity in magnetic resonance images challenge the segmentation procedure. The level set method
Li Jianzhang   +4 more
doaj   +1 more source

Level Set Gait Analysis for Synthesis and Reconstruction

open access: yes, 2009
We describe a new technique to extract the boundary of a walking subject, with ability to predict movement in missing frames. This paper uses a level sets representation of the training shapes and uses an interpolating cubic spline to model the ...
Mark S. Nixon   +5 more
core   +1 more source

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