Results 31 to 40 of about 5,094,747 (280)
The Ginzburg-Landau equation in the Heisenberg group [PDF]
, 2006 We consider a functional related with phase transition models in the Heisenberg group framework. We prove that level sets of local minimizers satisfy some density estimates, that is, they behave as "codimension one" sets.
Birindelli, I., Valdinoci, E.
core +2 more sources
Functions dividing their Hessian determinants and affine spheres [PDF]
, 2016 The nonzero level sets of a homogeneous, logarithmically homogeneous, or translationally homogeneous function are affine spheres if and only if the Hessian determinant of the function is a multiple of a power or an exponential of the function.
Fox, Daniel J. F.
core +1 more source
A novel fuzzy energy based level set method for medical image segmentation
Cogent Engineering, 2018 Segmentation is a very important step in the field of image processing. Noise and intensity inhomogeneity make challenging the segmentation of images, especially for medical images. Fuzzy C-means (FCM) clustering is one of the most widely used methods in
Mahipal Singh Choudhry, Rajiv Kapoor
doaj +1 more source
A Hesitant Soft Fuzzy Rough Set and its Applications
IEEE Access, 2019 The difficulty of establishing a common membership degree is not because there is a margin of error or some possibility distribution values, but because there is a set of possible values.
Ting Xie, Zengtai Gong
doaj +1 more source
Active contours without level sets [PDF]
2012 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
Graphite nodules features identifications and damaging micromechanims in ductile irons [PDF]
Fracture and Structural Integrity, 2013 Ductile irons mechanical properties are strongly influenced by the metal matrix microstructure and on the graphite elements morphology. Depending on the chemical composition, the manufacturing process and the heat treatments, these graphite elements can ...
Alberto De Santis +2 more
doaj +1 more source
BOUNDS FOR VOLUMES OF SUB-LEVEL SETS OF POLYNOMIALS AND APPLICATIONS
Tạp chí Khoa học Đại học Đà Lạt, 2022 In this paper, we present some explicit exponents in the estimates for the volumes of sub-level sets of polynomials on bounded sets and applications to the decay of oscillatory integrals and the convergence of singular integrals.
Loi Le Ta, Minh Quy Pham
doaj +1 more source
Interval-valued Level Cut Sets of Fuzzy Set [PDF]
Fuzzy Information and Engineering, 2011 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yuan, Xue-Hai +2 more
openaire +1 more source
Visual Tracking of Deformation and Classification of Non-Rigid Objects with Robot Hand Probing
Robotics, 2017 Performing tasks with a robot hand often requires a complete knowledge of the manipulated object, including its properties (shape, rigidity, surface texture) and its location in the environment, in order to ensure safe and efficient manipulation.
Fei Hui, Pierre Payeur, Ana-Maria Cretu
doaj +1 more source
Topological pressure of simultaneous level sets
, 2013 Multifractal analysis studies level sets of asymptotically defined quantities in a topological dynamical system. We consider the topological pressure function on such level sets, relating it both to the pressure on the entire phase space and to a ...
Barreira L +7 more
core +1 more source