Results 1 to 10 of about 5,094,747 (280)

Level sets of the Takagi function: local level sets [PDF]

open access: yesMonatshefte für Mathematik, 2012
The Takagi function : [0, 1] \to [0, 1] is a continuous non-differentiable function constructed by Takagi in 1903. The level sets L(y) = {x : (x) = y} of the Takagi function (x) are studied by introducing a notion of local level set into which level sets are partitioned.
Lagarias, Jeffrey C., Maddock, Zachary
openaire   +3 more sources

Level sets of the Takagi function: generic level sets [PDF]

open access: yesIndiana University Mathematics Journal, 2011
Comments welcome. 23 pages, 2 figures.
Lagarias, Jeffrey C., Maddock, Zachary
openaire   +3 more sources

A gyrification analysis approach based on Laplace Beltrami eigenfunction level sets [PDF]

open access: yesNeuroImage, 2021
An accurate measure of the complexity of patterns of cortical folding or gyrification is necessary for understanding normal brain development and neurodevelopmental disorders.
Rosita Shishegar   +5 more
doaj   +2 more sources

GPU-accelerated lung CT segmentation based on level sets and texture analysis [PDF]

open access: yesScientific Reports
This paper presents a novel semi-automatic method for lung segmentation in thoracic CT datasets. The fully three-dimensional algorithm is based on a level set representation of an active surface and integrates texture features to improve its robustness ...
Daniel Reska, Marek Kretowski
doaj   +2 more sources

(α,β)-CUT of intuitionistic fuzzy normed ideals [PDF]

open access: yesJournal of Fuzzy Extension and Applications, 2023
In this paper, the (α,β)-level sets where α and β are elements in the interval [0,1] is introduced. Several related properties for (α,β)-cut of intuitionistic fuzzy normed ideals in a normed ring (NR) will be studied and proven.
Nour Abed Alhaleem, Abd Ghafur Ahmad
doaj   +1 more source

Game Theory for Unmanned Vehicle Path Planning in the Marine Domain: State of the Art and New Possibilities

open access: yesJournal of Marine Science and Engineering, 2021
Thanks to the advent of new technologies and higher real-time computational capabilities, the use of unmanned vehicles in the marine domain has received a significant boost in the last decade.
Marco Cococcioni   +2 more
doaj   +1 more source

A Multi-Fidelity Framework for Wildland Fire Behavior Simulations over Complex Terrain

open access: yesAtmosphere, 2021
A method for the large-eddy simulation (LES) of wildfire spread over complex terrain is presented. In this scheme, a cut-cell immersed boundary method (CC-IBM) is used to render the complex terrain, defined by a tessellation, on a rectilinear Cartesian ...
Marcos Vanella   +6 more
doaj   +1 more source

Scaled oscillation and level sets [PDF]

open access: yesProceedings 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
openaire   +3 more sources

Defect Detection by Analyzing Thermal Infrared Images Covered with Shadows with a Hybrid Approach Driven by Local and Global Intensity Fitting Energy

open access: yesEngineering Proceedings, 2023
Defect detection using thermal infrared images is used in nondestructive evaluation and testing because it is easy to use. Thermal infrared images recorded the surface temperatures of the target with a thermal infrared camera.
Yishuo Huang   +2 more
doaj   +1 more source

Gaussian Mixture Model Based Probabilistic Modeling of Images for Medical Image Segmentation

open access: yesIEEE Access, 2020
In this paper, we propose a novel image segmentation algorithm that is based on the probability distributions of the object and background. It uses the variational level sets formulation with a novel region based term in addition to the edge-based term ...
Farhan Riaz   +8 more
doaj   +1 more source

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