Publication
Realistic Analytical Phantoms for Parallel Magnetic Resonance Imaging
Publications associées (35)
Encoding and decoding of generalized Reed-Solomon codes using parallel processing techniques
A system, computer program, and/or method for encoding data that can correct r/2 errors. The original symbols are transformed using a Fourier transform of length p. Generator polynomials are used to encode the p blocks separately, and an inverse Fourier tr ...
2012Computing exact Fourier series coefficients of IC rectilinear polygons from low-resolution fast Fourier coefficients
We present a novel, accurate and fast algorithm to obtain Fourier series coecients from an IC layer whose description consists of rectilinear polygons on a plane, and how to implement it using o-the-shelf hardware components. Based on properties of Fourier ...
2012Diffractionless Fourier Domain Microscopy
Theo Lasser, Rainer Leitgeb, Cédric Blatter, Tilman Schmoll
Several methods have been proposed and realized to increase the lateral resolution in microscopy and ultimately to beat the actual diffraction limit as stated by Abbe. Structured illumination for example enhances the lateral resolution by virtually extendi ...
20113D Near-Infrared Imaging Based on a Single-Photon Avalanche Diode Array Sensor
Matthias Wolf, Edoardo Charbon, Juan Mata Pavia
An imager for optical tomography was designed based on a detector with 128x128 single-photon pixels that included a bank of 32 time-to-digital converters. Due to the high spatial resolution and the possibility of performing time resolved measurements, a ne ...
2011Subpixel translation of MEMS measured by discrete Fourier transform analysis of CCD images
Martinus Gijs, Christophe Yamahata, Marc Stranczl
We present a straightforward method for measuring in-plane linear displacements of microelectromechanical systems (MEMS) with a subnanometer resolution. The technique is based on Fourier transform analysis of a video recorded with a Charge-Coupled Device ( ...
2011Signal Processing in Space and Time
Francisco Pereira Correia Pinto
Sound waves propagate through space and time by transference of energy between the particles in the medium, which vibrate according to the oscillation patterns of the waves. These vibrations can be captured by a microphone and translated into a digital sig ...
EPFL2010Multichannel Sampling with Unknown Gains and Offsets: A Fast Reconstruction Algorithm
We study a multichannel sampling scheme, where different channels observe scaled and shifted versions of a common bandlimited signal. The channel gains and offsets are unknown a priori, and each channel samples at sub-Nyquist rates. This setup appears in m ...
2010Subnanometer translation of microelectromechanical systems measured by discrete Fourier analysis of CCD images
Martinus Gijs, Christophe Yamahata
In-plane linear displacements of microelectromechanical systems are measured with subnanometer accuracy by observing periodic micropatterns with a CCD camera attached to an optical microscope. The translation of the microstructure is retrieved from the vid ...
Institute of Electrical and Electronics Engineers2010A Computable Fourier Condition Generating Alias-Free Sampling Lattices
We propose a Fourier analytical condition linking alias-free sampling with the Fourier transform of the indicator function defined on the given frequency support. Our discussions center around how to develop practical computation algorithms based on the pr ...
Institute of Electrical and Electronics Engineers2009Irradiation effects in helium implanted silicon carbide measured by X-ray absorption spectrometry
Silicon carbide (SiC) is investigated as a possible structural material for future nuclear power plants. It is utilized as fibre and/or as matrix in ceramic composite materials. The fibre reinforcement is necessary to provide the required ductility. In thi ...
Elsevier2009