Mesh-free based variational level set evolution for breast region segmentation and abnormality detection using mammograms.
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DOI: 10.1002/cnm.2907
Abstract: Automatic segmentation of abnormal region is a crucial task in computer-aided detection system using mammograms. In this work, an automatic abnormality detection algorithm using mammographic images is proposed. In the preprocessing step, partial differential equation-based… read more here.
Keywords: free based; level; region; variational level ... See more keywords
Front capturing by level set method for the reactive Euler equations
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DOI: 10.1002/fld.4995
Abstract: In this article, we present a front capturing method for compressible reactive flows, where a shock tracking technique is applied with level set method. In stiff reaction problems, the difficulty arises when the time scale… read more here.
Keywords: method reactive; capturing level; set method; level set ... See more keywords
Oriented distance regularized level set evolution for image segmentation
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DOI: 10.1002/ima.22452
Abstract: The conventional distance regularized level set evolution method has been very popular in image segmentation, but usually it cannot converge to the desired boundary when there are multiple and unwanted boundaries in the image. By… read more here.
Keywords: distance regularized; image; level; set evolution ... See more keywords
Automatic renal lesion segmentation in ultrasound images based on saliency features, improved LBP, and an edge indicator under level set framework
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DOI: 10.1002/mp.12661
Abstract: PURPOSE Segmentation of lesions in ultrasound images is widely used for preliminary diagnosis. In this paper, we develop an automatic segmentation algorithm for multiple types of lesions in ultrasound images. The proposed method is able… read more here.
Keywords: edge indicator; segmentation; ultrasound images; proposed method ... See more keywords
A hybrid level set method for the integrated optimization of structural topology and multicomponent layout
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DOI: 10.1002/nme.6642
Abstract: A hybrid level set method is proposed for devising structures with embedded components, where the supporting structure as well as the positions and orientations of the components are optimized simultaneously. Two different types of level… read more here.
Keywords: set method; optimization; level set; level ... See more keywords
On a marching level‐set method for extended discontinuous Galerkin methods for incompressible two‐phase flows: Application to two‐dimensional settings
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DOI: 10.1002/nme.6853
Abstract: In this work a solver for two‐dimensional, instationary two‐phase flows on the basis of the extended discontinuous Galerkin (extended DG/XDG) method is presented. The XDG method adapts the approximation space conformal to the position of… read more here.
Keywords: two phase; level set; method; two dimensional ... See more keywords
Introducing a level-set based shape and topology optimization method for the wear of composite materials with geometric constraints
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DOI: 10.1007/s00158-016-1512-4
Abstract: The wear of materials continues to be a limiting factor in the lifetime and performance of mechanical systems with sliding surfaces. As the demand for low wear materials grows so does the need for models… read more here.
Keywords: shape; topology; optimization; set based ... See more keywords
Topology optimization based on level set for a flexible multibody system modeled via ANCF
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DOI: 10.1007/s00158-016-1558-3
Abstract: A topology optimization methodology is proposed for the flexible multibody system undergoing both large overall motion and large deformation. The system of concern is modeled via the absolute nodal coordinate formulation. The equivalent static load… read more here.
Keywords: methodology; system; topology; topology optimization ... See more keywords
A level set topology optimization method using a biharmonic equation based on plate theory
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DOI: 10.1007/s00158-019-02332-5
Abstract: This study aims to propose a new level set optimization method capable of adjusting the complexity of resulting structure without loss of its optimality. The key idea is the deformational behavior of plates. We consider… read more here.
Keywords: topology; optimization method; plate; level set ... See more keywords
Level set topology and shape optimization by density methods using cut elements with length scale control
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DOI: 10.1007/s00158-020-02527-1
Abstract: The level set and density methods for topology optimization are often perceived as two very different approaches. This has to some extent led to two competing research directions working in parallel with only little overlap… read more here.
Keywords: density methods; density; topology; optimization ... See more keywords
Structural topology optimization using a level set method with finite difference updating scheme
Sign Up to like & getrecommendations! Published in 2021 at "Structural and Multidisciplinary Optimization"
DOI: 10.1007/s00158-020-02779-x
Abstract: In conventional level set methods for topology optimization, the evolution of level set function is solved by upwind scheme and needs to be reinitialized frequently throughout the optimization. The upwind scheme is complicated in numerical… read more here.
Keywords: difference; topology; topology optimization; optimization ... See more keywords