246 citations
- Austrian Academy of SciencesAT76 papers
- University of ViennaAT26 papers
- Centre National de la Recherche ScientifiqueFR5 papers
- UCLouvainBE4 papers
- Laboratoire des Sciences du Numérique de NantesFR3 papers
- Nantes UniversitéFR3 papers
- Princeton UniversityUS3 papers
- Technical University of DenmarkDK3 papers
- TU WienAT3 papers
- University of MaraghehIR3 papers
- University of Novi SadRS3 papers
- AIT Austrian Institute of Technology GmbHAT2 papers
5 papers · 1 filter
Spectrum-Adapted Tight Graph Wavelet and Vertex-Frequency Frames
David I Shuman, Christoph Wiesmeyr, Nicki Holighaus +1
We consider the problem of designing spectral graph filters for the construction of dictionaries of atoms that can be used to efficiently represent signals residing on weighted gra…
Imaging With Nature: Compressive Imaging Using a Multiply Scattering Medium
Antoine Liutkus, David Martina, Sébastien Popoff +6
The recent theory of compressive sensing leverages upon the structure of signals to acquire them with much fewer measurements than was previously thought necessary, and certainly w…
Efficient algorithms for discrete Gabor transforms on a nonseparable lattice
Christoph Wiesmeyr, Nicki Holighaus, Peter L. Soendergaard
The Discrete Gabor Transform (DGT) is the most commonly used transform for signal analysis and synthesis using a linear frequency scale. It turns out that the involved operators ar…
Structure of nonstationary Gabor frames and their dual systems
Nicki Holighaus
We investigate the structural properties of dual systems for nonstationary Gabor frames. In particular, we prove that some inverse nonstationary Gabor frame operators admit a Walnu…
Low-complexity computation of plate eigenmodes with Vekua approximations and the Method of Particular Solutions
Gilles Chardon, Laurent Daudet
This paper extends the Method of Particular Solutions (MPS) to the computation of eigenfrequencies and eigenmodes of plates. Specific approximation schemes are developed, with plan…