Results 11 to 20 of about 62,644 (199)
Scaled oscillation and level sets [PDF]
Proceedings of the American Mathematical Society, 2022 We study the size and regularity properties of level sets of continuous functions with bounded upper-scaled and lower-scaled oscillation.
Altaf, Iqra +2 more
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An Improved Level Set Algorithm for Prostate Region Segmentation
Chinese Journal of Magnetic Resonance, 2021 Accurate segmentation of prostate region is an important prerequisite to improve the accuracy of computer-aided prostate cancer diagnosis. In this work, a new and accurate prostate segmentation algorithm is proposed and tested. The new algorithm consists
Shi-ju YAN, Yong-sen HAN, Guang-yu TANG
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Research on laser center positioning under CV model segmentation
Frontiers in Physics, 2022 Spot positioning accuracy is an important index of laser processing system and ranging system. When the laser spot is noisy or the gray level is not uniform, the positioning accuracy is easily affected. Aiming at the above problems, this paper proposes a
Xingchen Guo +5 more
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(Convex) Level Sets Integration [PDF]
Journal of Optimization Theory and Applications, 2015 The authors investigate the problem of recovering a pseudoconvex function from a multi-valued map that generates the normal cones to the (lower) level set of the function. This ``(convex) level set integration'' is a generalization of the classical problem of recovering (integrating) a differentiable function from its gradient with a given value in ...
Jean-Pierre Crouzeix +2 more
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Saliency-Driven Active Contour Model for Image Segmentation
IEEE Access, 2020 Active contour models have achieved prominent success in the area of image segmentation, allowing complex objects to be segmented from the background for further analysis.
Ehtesham Iqbal +4 more
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One-Layer Particle Level Set Method
Shanghai Jiaotong Daxue xuebao, 2021 A one-layer particle level set method in which Lagrangian particles are employed to track the interface features is proposed and utilized to capture the interface. First, the interface is captured by utilizing the level set method. Then, the interface is
MU Kailong, ZHAO Lanhao, MAO Jia
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An Image Segmentation Method Based on Improved Regularized Level Set Model
Applied Sciences, 2018 When the level set algorithm is used to segment an image, the level set function must be initialized periodically to ensure that it remains a signed distance function (SDF).
Lin Sun +3 more
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Topology Optimization for Multipatch Fused Deposition Modeling 3D Printing
Applied Sciences, 2020 This paper presents a hybrid topology optimization method for multipatch fused deposition modeling (FDM) 3D printing to address the process-induced material anisotropy.
Huangchao Yu +3 more
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Some comments on level sets of fuzzy sets [PDF]
2008 IEEE International Conference on Fuzzy Systems (IEEE World Congress on Computational Intelligence), 2008 This paper discusses level sets of functions from a set U into a set C with an order structure, for example a poset or a lattice. Such sets are prevalent in fuzzy set theory. We provide some general facts and then consider the particular case when C is the complete lattice of closed intervals in the unit interval [0,1]; that is, when the function is an
Carol L. Walker +2 more
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A Level Set Discrete Element Model for sintering with an optimization-based contact detection [PDF]
Journal of Theoretical, Computational and Applied MechanicsSintering is a high temperature process for the consolidation of ceramic, metal and polymer powders. The Discrete Element Method (DEM) has been effectively used to model the sintering process at the particle scale considering spherical particles. However,
Brayan Paredes-Goyes +2 more
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