5 search results - page 1 / 1 » Sharp High-Frequency Estimates for the Helmholtz Equation an... |
MMAS
2011
Springer
12 years 7 months ago
2011
Springer
This paper introduces a new sweeping preconditioner for the iterative solution of the variable coefficient Helmholtz equation in two and three dimensions. The algorithms follow th...
SIAMSC
2010
13 years 3 months ago
2010
We present a new nonlinear optimization procedure for the computation of generalized Gaussian quadratures for a broad class of square integrable functions on intervals. While some ...
FOCM
2010
13 years 2 months ago
2010
This paper presents a numerical compression strategy for the boundary integral equation of acoustic scattering in two dimensions. These equations have oscillatory kernels that we ...
MICCAI
2009
Springer
14 years 6 months ago
2009
Springer
Probabilistic models are extensively used in medical image segmentation. Most of them employ parametric representations of densities and make idealizing assumptions, e.g. normal di...
ECCV
2004
Springer
14 years 6 months ago
2004
Springer
In this paper, we propose a new PDE-based methodology for deformable surfaces that is capable of automatically evolving its shape to capture the geometric boundary of the data and ...