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Level set methods for dynamic tomography [PDF]
2004 2nd IEEE International Symposium on Biomedical Imaging: Macro to Nano (IEEE Cat No. 04EX821), 2005 In this paper, we propose a novel variational framework for the reconstruction of dynamic objects from sparse and noisy tomographic data. Using an object-based scene model, we developed a general object dynamic model based on a one to one and differentiable mapping. We then propose a novel distance between curves to incorporate the object dynamics into
Yonggang Shi, William Clement Karl
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Modeling and Stress Analysis of Rounded Rectangular Inclusion Enclosed by FGM Layer [PDF]
International Journal of Mathematical, Engineering and Management Sciences, 2023 The aim of the present work is to model and analyze stresses around rounded rectangular inclusion enclosed with functionally graded material (FGM) layer.
Pushpa Rani +2 more
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Curvature Calculations for the Level-Set Method [PDF]
, 2012 The present work illustrates a difficulty with the level-set method to accurately capture the curvature of interfaces in regions that are of equal distance to two or more interfaces. Such regions are characterized by kinks in the level-set function where the derivative is discontinuous. Thus the standard discretization scheme is not suitable.
Lervåg, Karl Yngve, Ervik, Åsmund
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Topology optimization for maximizing linear buckling load based on level set method
Mechanical Engineering Journal, 2022 Stability and buckling have attracted extensive attention in the design of structural elements, especially in the design of thin-walled structures since they may naturally have poor stability and be prone to buckling failure.
Naoyuki ISHIDA +5 more
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LEVEL SETS AND COMPUTATIONAL INTELLIGENCE ALGORITHMS TO MEDICAL IMAGE ANALYSIS IN E-MEDICUS SYSTEM
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2017 In this work, there were implemented methods to analyze and segmentation medical images by using topological, statistical algorithms and artificial intelligence techniques.
Tomasz Rymarczyk
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A Novel Adaptive Level Set Segmentation Method [PDF]
Computational and Mathematical Methods in Medicine, 2014 The adaptive distance preserving level set (ADPLS) method is fast and not dependent on the initial contour for the segmentation of images with intensity inhomogeneity, but it often leads to segmentation with compromised accuracy. And the local binary fitting model (LBF) method can achieve segmentation with higher accuracy but with low speed and ...
Yazhong Lin +4 more
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COUPLING BOUNDARY ELEMENT METHOD WITH LEVEL SET METHOD TO SOLVE INVERSE PROBLEM
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2017 The boundary element method and the level set method can be used in order to solve the inverse problem for electric field. In this approach the adjoint equation arises in each iteration step.
Tomasz Rymarczyk +2 more
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A Finite Element Method for Level Sets [PDF]
, 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
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Multi-Scale Adaptive Level Set Segmentation Method Based on Saliency
IEEE 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
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Performance Evaluation of Uncooled UAV Infrared Camera in Detecting Concrete Delamination
Infrastructures, 2022 Concrete delamination detection using unmanned aerial vehicle (UAV)-mounted infrared cameras has proved effective in recent research. However, most studies used expensive research-grade infrared cameras and proprietary software to acquire images, which ...
Dyala Aljagoub +3 more
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