Results 41 to 50 of about 34,849,215 (311)

A level set based method for fixing overhangs in 3D printing [PDF]

open access: yes, 2017
3D printers based on the Fused Decomposition Modeling create objects layer-by-layer dropping fused material. As a consequence, strong overhangs cannot be printed because the new-come material does not find a suitable support over the last deposed layer ...
Cacace, Simone   +2 more
core   +2 more sources

A multi-material level set-based topology optimization of flexoelectric composites [PDF]

open access: yes, 2018
We present a computational design methodology for topology optimization of multi-material-based flexoelectric composites. The methodology extends our recently proposed design methodology for a single flexoelectric material.
H. Ghasemi, Harold S. Park, T. Rabczuk
semanticscholar   +1 more source

A Topology Preserving Method of Evolving Contours Based on Sparsity Constraint for Object Segmentation

open access: yesIEEE Access, 2017
Active contour models based on the level set method (LSM) are widely used in image segmentation. The major advantages of these models based on an LSM are topological flexibility and evolution robustness.
Guoqi Liu, Haifeng Li, Liu Yang
doaj   +1 more source

Active contours without level sets [PDF]

open access: yes2012 19th IEEE International Conference on Image Processing, 2012
This paper deals with the problem of segmenting an image with active contours. We explain how recent convexification methods allow now to use active contours without level sets with simple and efficient first order schemes. We recall different algorithms proposed in the literature, and we propose a new variant.
Yildizoglu, Romain   +2 more
openaire   +1 more source

A review of level-set methods and some recent applications

open access: yesJournal of Computational Physics, 2018
We review some of the recent advances in level-set methods and their applications. In particular, we discuss how to impose boundary conditions at irregular domains and free boundaries, as well as the extension of level-set methods to adaptive Cartesian ...
F. Gibou, Ronald Fedkiw, S. Osher
semanticscholar   +1 more source

RHLS: A Robust Hybrid Level Set Model Using Global-Local Signed Energy-Based Pressure Force for Medical Image Segmentation

open access: yesIEEE Access
Medical image segmentation often encounters significant challenges due to noise and intensity inhomogeneity. While Level Set Models (LSMs) are widely used for segmentation, their effectiveness in these scenarios remains limited.
M. Almasganj, E. Fatemizadeh
doaj   +1 more source

Interval-valued Level Cut Sets of Fuzzy Set [PDF]

open access: yesFuzzy Information and Engineering, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yuan, Xue-Hai   +2 more
openaire   +1 more source

An Active Contour Method Based on Regularized Kernel Fuzzy C-Means Clustering

open access: yesIEEE Access, 2021
This research presents hybrid level set evolution for complex and inhomogeneous image segmentation. Firstly, we develop an adaptive force with level set evolution, which is driven by region information.
Shafiullah Soomro   +4 more
doaj   +1 more source

A Shape Prior-Based Active Contour Model for Automatic Images Segmentation

open access: yesIEEE Access, 2020
Due to the variable shapes of objects, high noise intensity and complex environments, the field of image segmentation still has great challenges. To address these issues, we present a new image segmentation strategy based on active contour model and ...
Xiaoliang Jiang, Jinyun Jiang
doaj   +1 more source

Level Set Segmentation With Multiple Regions [PDF]

open access: yesIEEE Transactions on Image Processing, 2006
The popularity of level sets for segmentation is mainly based on the sound and convenient treatment of regions and their boundaries. Unfortunately, this convenience is so far not known from level set methods when applied to images with more than two regions.
Brox, Thomas, Weickert, Joachim
openaire   +3 more sources

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