Concept
Peirce quincuncial projection
Publications associées (22)
Plug-and-play adaptive surrogate modeling of parametric nonlinear dynamics in frequency domain
Jürg Alexander Schiffmann, Phillip Huwiler, Davide Pradovera
We present an algorithm for constructing efficient surrogate frequency-domain models of (nonlinear) parametric dynamical systems in a non-intrusive way. To capture the dependence of the underlying system on frequency and parameters, our proposed approach c ...
2023Fast multiscale reconstruction for Cryo-EM
Michaël Unser, Laurène Donati, Masih Nilchian
We present a multiscale reconstruction framework for single-particle analysis (SPA). The representation of three-dimensional (3D) objects with scaled basis functions permits the reconstruction of volumes at any desired scale in the real-space. This multisc ...
2018High-quality parallel-ray X-Ray CT back projection using optimized interpolation
Michaël Unser, Michael Thompson McCann
We propose a new, cost-efficient method for computing back projections in parallel-ray X-ray CT. Forward and back projections are the basis of almost all X-ray CT reconstruction methods, but computing these accurately is costly. In the special case of para ...
Institute of Electrical and Electronics Engineers2017High-Quality Parallel-Ray x-Ray CT Back Projection Using Optimized Interpolation
Michaël Unser, Michael Thompson McCann
We propose a new, cost-efficient method for computing back projections in parallel-ray X-ray CT. Forward and back projections are the basis of almost all X-ray CT reconstruction methods, but computing these accurately is costly. In the special case of para ...
2017Complex pattern projection through a multimode fiber
Demetri Psaltis, Christophe Moser, Damien Claude-Marie Loterie, Salma Farahi
Wavefront shaping through multimode fibers has many interesting applications, such as micromanipulation and endoscopy, where the small diameter of fibers is an advantage in terms of miniaturization. However, pattern projection can suffer from deleterious i ...
Spie-Int Soc Optical Engineering2015Fast low-specific absorption rate B0-mapping along projections at high field using two-dimensional radiofrequency pulses
Rolf Gruetter, Daniel Gallichan, Benoît Schaller, Olivier Benoit Thomas Reynaud
Purpose At 7 Tesla (T), conventional static field (B0) projection mapping techniques, e.g., FASTMAP, FASTESTMAP, lead to elevated specific absorption rates (SAR), requiring longer total acquisition times (TA). In this work, the series of adiabatic pulses n ...
Wiley-Blackwell2015Towards More Accurate and Efficient Beamformed Radio Interferometry Imaging
Matthieu Martin Jean-André Simeoni
The Square Kilometre Array (SKA) will form the largest radio telescope ever built, generating on the order of one terabyte of data per second. To reduce the data flow sent to the central processor, hierarchical designs have been proposed: the data is prima ...
2015Stochastic Exploration of Ambiguities for Non-Rigid Shape Recovery
Recovering the 3D shape of deformable surfaces from single images is known to be a highly ambiguous problem because many different shapes may have very similar projections. This is commonly addressed by restricting the set of possible shapes to linear comb ...
Institute of Electrical and Electronics Engineers2013Structure and Substrate-Induced Conformational Changes of the Secondary Citrate/Sodium Symporter CitS Revealed by Electron Crystallography
The secondary Na+/citrate symporter CitS of Klebsiella pneumoniae is the best-characterized member of the 2-hydroxycarboxylate transporter family. The recent projection structure gave insight into its overall structural organization. Here, we present the t ...
Elsevier BV2013Quotient-method Algorithms for Input-affine Single-input Nonlinear Systems
Many real-world systems are intrinsically nonlinear. This thesis proposes various algorithms for designing control laws for input-affine single-input nonlinear systems. These algorithms, which are based on the concept of quotients used in nonlinear control ...
EPFL2012