Andreas Kleefeld

Publication Activity (10 Years)

Years Active: 2011-2024
Publications (10 Years): 23

Top Topics

Image Processing

Low Dimensional Spaces

Symmetric Matrices

Top Venues

Math. Morphol. Theory Appl.

Publications

Marvin Kahra, Michael Breuß, Andreas Kleefeld, Martin Welk
An Approach to Colour Morphological Supremum Formation Using the LogSumExp Approximation. DGMM (2024)
E. O. Asante-Asamani, Andreas Kleefeld, Bruce A. Wade
A fourth-order exponential time differencing scheme with dimensional splitting for non-linear reaction-diffusion systems. CoRR (2024)
Matthias Grajewski, Andreas Kleefeld
Detecting and approximating decision boundaries in low-dimensional spaces. Numer. Algorithms 95 (4) (2024)
Julian Clausnitzer, Andreas Kleefeld
A spectral Galerkin exponential Euler time-stepping scheme for parabolic SPDEs on two-dimensional domains with a C2-boundary. CoRR (2023)
Marvin Kahra, Michael Breuß, Andreas Kleefeld, Martin Welk
An Approach to Colour Morphological Supremum Formation using the LogSumExp Approximation. CoRR (2023)
Julian Clausnitzer, Andreas Kleefeld
Comparing intrusive and non-intrusive polynomial chaos for a class of exponential time differencing schemes. CoRR (2023)
Matthias Grajewski, Andreas Kleefeld
Detecting and approximating decision boundaries in low dimensional spaces. CoRR (2023)
Bernhard Burgeth, Andreas Kleefeld, Eugene Zhang, Yue Zhang
Towards Topological Analysis of Non-symmetric Tensor Fields via Complexification. DGMM (2022)
Lukas Pieronek, Andreas Kleefeld
On trajectories of complex-valued interior transmission eigenvalues. CoRR (2022)
Andreas Kleefeld
The hot spots conjecture can be false: Some numerical examples. CoRR (2021)
Andreas Kleefeld
The hot spots conjecture can be false: some numerical examples. Adv. Comput. Math. 47 (6) (2021)
E. O. Asante-Asamani, Andreas Kleefeld, Bruce A. Wade
A second-order exponential time differencing scheme for non-linear reaction-diffusion systems with dimensional splitting. CoRR (2020)
E. O. Asante-Asamani, Andreas Kleefeld, Bruce A. Wade
A second-order exponential time differencing scheme for non-linear reaction-diffusion systems with dimensional splitting. J. Comput. Phys. 415 (2020)
Bernhard Burgeth, Andreas Kleefeld, Benoît Naegel, Benjamin Perret
Editorial - Special Issue: ISMM 2019. Math. Morphol. Theory Appl. 4 (1) (2020)
J. Martín-Vaquero, Andreas Kleefeld
Solving nonlinear parabolic PDEs in several dimensions: Parallelized ESERK codes. J. Comput. Phys. 423 (2020)
J. Martín-Vaquero, Andreas Kleefeld
ESERK5: A fifth-order extrapolated stabilized explicit Runge-Kutta method. J. Comput. Appl. Math. 356 (2019)
Andreas Kleefeld, Lukas Pieronek
Elastic interior transmission eigenvalues and their computation via the method of fundamental solutions. CoRR (2019)
Bernhard Burgeth, Stephan Didas, Andreas Kleefeld
A Unified Approach to the Processing of Hyperspectral Images. ISMM (2019)
Andreas Kleefeld, Sophia Vorderwülbecke, Bernhard Burgeth
Anomalous diffusion, dilation, and erosion in image processing. Int. J. Comput. Math. 95 (6-7) (2018)
Michael Breuß, Laurent Hoeltgen, Andreas Kleefeld
Matrix-Valued Levelings for Colour Images. ISMM (2017)
Laurent Hoeltgen, Isaac Harris, Michael Breuß, Andreas Kleefeld
Analytic Existence and Uniqueness Results for PDE-Based Image Reconstruction with the Laplacian. SSVM (2017)
Bernhard Burgeth, Andreas Kleefeld
A Unified Approach to PDE-Driven Morphology for Fields of Orthogonal and Generalized Doubly-Stochastic Matrices. ISMM (2017)
Martin Welk, Andreas Kleefeld, Michael Breuß
Quantile Filtering of Colour Images via Symmetric Matrices. Math. Morphol. Theory Appl. 1 (1) (2016)
Andreas Kleefeld, Anke Meyer-Baese, Bernhard Burgeth
Elementary Morphology for SO(2)- and SO(3)-Orientation Fields. ISMM (2015)
Martin Welk, Andreas Kleefeld, Michael Breuß
Non-adaptive and Amoeba Quantile Filters for Colour Images. ISMM (2015)
Andreas Kleefeld, Michael Breuß, Martin Welk, Bernhard Burgeth
Adaptive Filters for Color Images: Median Filtering and Its Extensions. CCIW (2015)
Ali Sharifi Boroujerdi, Michael Breuß, Bernhard Burgeth, Andreas Kleefeld
PDE-Based Color Morphology Using Matrix Fields. SSVM (2015)
Bernhard Burgeth, Andreas Kleefeld
An approach to color-morphology based on Einstein addition and Loewner order. Pattern Recognit. Lett. 47 (2014)
Yong Chul Ju, Silvia Tozza, Michael Breuß, Andrés Bruhn, Andreas Kleefeld
Generalised Perspective Shape from Shading with Oren-Nayar Reflectance. BMVC (2013)
Bernhard Burgeth, Andreas Kleefeld
Morphology for Color Images via Loewner Order for Matrix Fields. ISMM (2013)
Andreas Kleefeld, Tzu-Chu Lin
A Global Galerkin Method for Solving the Exterior Neumann Problem for the Helmholtz Equation Using Panich's Integral Equation Approach. SIAM J. Sci. Comput. 35 (3) (2013)
Andreas Kleefeld
The exterior problem for the Helmholtz equation with mixed boundary conditions in three dimensions. Int. J. Comput. Math. 89 (17) (2012)
Andreas Kleefeld
A modified boundary integral equation for solving the exterior Robin problem for the Helmholtz equation in three dimensions. Appl. Math. Comput. 219 (4) (2012)
Andreas Kleefeld
The Transmission Problem for the Helmholtz Equation in R³. Comput. Methods Appl. Math. 12 (3) (2012)
Andreas Kleefeld, Tzu-Chu Lin
The nonlinear Landweber method applied to an inverse scattering problem for sound-soft obstacles in 3D. Comput. Phys. Commun. 182 (12) (2011)
Andreas Kleefeld
Numerical results for linear Fredholm integral equations of the first kind over surfaces in three dimensions. Int. J. Comput. Math. 88 (13) (2011)
Andreas Kleefeld, M. Reißel
The Levenberg-Marquardt method applied to a parameter estimation problem arising from electrical resistivity tomography. Appl. Math. Comput. 217 (9) (2011)