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Weighted Mean Curvature [PDF]

open access: yesSignal Processing, 2019
In image processing tasks, spatial priors are essential for robust computations, regularization, algorithmic design and Bayesian inference. In this paper, we introduce weighted mean curvature (WMC) as a novel image prior and present an efficient ...
Goksel, Orcun, Gong, Yuanhao
core   +5 more sources

Constant mean curvature surfaces [PDF]

open access: yesSurveys in Differential Geometry, 2016
In this article we survey recent developments in the theory of constant mean curvature surfaces in homogeneous 3-manifolds, as well as some related aspects on existence and descriptive results for $H$-laminations and CMC foliations of Riemannian $n ...
Meeks III, William H.   +2 more
core   +9 more sources

The mean curvature at the first singular time of the mean curvature flow [PDF]

open access: yesAnnales de l'Institut Henri Poincaré C, Analyse non linéaire, 2010
Consider a family of smooth immersions $F(\cdot,t): M^n\to \mathbb{R}^{n+1}$ of closed hypersurfaces in $\mathbb{R}^{n+1}$ moving by the mean curvature flow $\frac{\partial F(p,t)}{\partial t} = -H(p,t)\cdot \nu(p,t)$, for $t\in [0,T)$. We prove that the
Brakke   +26 more
core   +4 more sources

Curvature estimates for surfaces with bounded mean curvature [PDF]

open access: yesTransactions of the American Mathematical Society, 2011
Estimates for the norm of the second fundamental form, $|A|$, play a crucial role in studying the geometry of surfaces. In fact, when $|A|$ is bounded the surface cannot bend too sharply.
Bourni, Theodora, Tinaglia, Giuseppe
core   +10 more sources

Mean curvature flow with obstacles [PDF]

open access: yesAnnales de l'Institut Henri Poincaré C, Analyse non linéaire, 2012
We consider the evolution of fronts by mean curvature in the presence of obstacles. We construct a weak solution to the flow by means of a variational method, corresponding to an implicit time-discretization scheme.
Almeida, Luís   +2 more
core   +9 more sources

The hyperbolic mean curvature flow [PDF]

open access: yesJournal de Mathématiques Pures et Appliquées, 2007
We introduce a geometric evolution equation of hyperbolic type, which governs the evolution of a hypersurface moving in the direction of its mean curvature vector.
LeFloch, Philippe G., Smoczyk, Knut
core   +4 more sources

Spacelike Mean Curvature Flow [PDF]

open access: yesThe Journal of Geometric Analysis, 2018
AbstractWe prove long-time existence and convergence results for spacelike solutions to mean curvature flow in the pseudo-Euclidean space$$\mathbb {R}^{n,m}$$Rn,m, which are entire or defined on bounded domains and satisfying Neumann or Dirichlet boundary conditions. As an application, we prove long-time existence and convergence of the$${{\,\mathrm{G}\
Ben Lambert, Jason D. Lotay
semanticscholar   +6 more sources

Mean Curvature in the Light of Scalar Curvature [PDF]

open access: yesAnnales de l'Institut Fourier, 2018
We formulate several conjectures on mean convex domains in the Euclidean spaces, as well as in more general spaces with lower bonds on their scalar curvatures, and prove a few theorems motivating these conjectures.
M. Gromov
semanticscholar   +5 more sources

Mean curvature and texture constrained composite weighted random walk algorithm for optic disc segmentation towards glaucoma screening [PDF]

open access: yesHealthcare Technology Letters, 2018
Accurate optic disc (OD) segmentation is an important step in obtaining cup-to-disc ratio-based glaucoma screening using fundus imaging. It is a challenging task because of the subtle OD boundary, blood vessel occlusion and intensity inhomogeneity.
Rashmi Panda, N.B. Puhan, Ganapati Panda
doaj   +2 more sources

Surfaces of constant mean curvature [PDF]

open access: bronzeProceedings of the American Mathematical Society, 1966
Joseph A. Wolf
openalex   +3 more sources

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