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AMC
2010
143views more  AMC 2010»
15 years 4 months ago
Fixed-point iterations in determining a Tikhonov regularization parameter in Kirsch's factorization method
Kirsch's factorization method is a fast inversion technique for visualizing the profile of a scatterer from measurements of the far-field pattern. The mathematical basis of t...
Koung Hee Leem, George Pelekanos, Fermín S....
SIAMJO
2008
93views more  SIAMJO 2008»
15 years 4 months ago
Multivariable Utility Functions
Abstract. Utility functions of several variables are ubiquitous in economics. Their maximization requires inversion of the gradient map. Using convex analysis tools, we provide a r...
Maria B. Chiarolla, Ulrich G. Haussmann
ICASSP
2011
IEEE
14 years 7 months ago
Robust sound field reproduction integrating multi-point sound field control and wave field synthesis
For a reproduced sound field, the competing goals between the listening area and reproduction accuracy in an actual environment is one of the most important problems in sound fi...
Noriyoshi Kamado, Hiroshi Saruwatari, Kiyohiro Shi...
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SIAMMA
2010
55views more  SIAMMA 2010»
14 years 11 months ago
The Existence of an Infinite Discrete Set of Transmission Eigenvalues
Abstract. We prove the existence of an infinite discrete set of transmission eigenvalues corresponding to the scattering problem for isotropic and anisotropic inhomogeneous media f...
Fioralba Cakoni, Drossos Gintides, Houssem Haddar
IH
2005
Springer
15 years 9 months ago
On the Intractability of Inverting Geometric Distortions in Watermarking Schemes
We examine the problem of watermarking schemes robust against geometric distortions from a complexity theoretic point of view. The main results presented are polynomial time reduct...
Maciej Liskiewicz, Ulrich Wölfel