| CONTENTS |
|
Seminars |
Fast Multiresolution Reconstruction for Cryo-EM17 Apr 2018
We present a multiresolution reconstruction framework for single-particle analysis (SPA). The representation of 3D objects with scaled basis functions permits the reconstruction of volumes at any desired scale in the real-space. With this tool, one can now select a level of “coarseness” for the reconstruction that is well adapted to the current under-determination of the measurements during the refinement procedure (e.g., few projection angles). In particular, we show that reconstruction performed at coarse scale is more robust to error on angles and permits gains in computational speed. A key component of the proposed multiresolution scheme is its fast implementation. The costly step of the reconstruction — which was previously hindering the use of advanced iterative methods in SPA — is formulated as a discrete convolution with cost independent upon the number of projection directions. The inclusion of the CTF inside the imaging matrix is also done at no extra computational cost. Finally, by permitting full 3D regularisation, the framework is by itself a robust alternative to direct methods for performing reconstruction in adverse imaging conditions.
Direct Reconstruction of Clipped Peaks in Bandlimited OFDM Signals13 Mar 2018
Sparsity-based techniques for diffraction tomography27 Feb 2018
Structured Illumination and the Analysis of Single Molecules in Cells09 Feb 2018
Periodic Splines and Gaussian Processes for the Resolution of Linear Inverse Problems30 Jan 2018
Fast Piecewise-Affine Motion Estimation Without Segmentation19 Dec 2017
Continuous Representations in Bioimage Analysis: a Bridge from Pixels to the Real World12 Dec 2017
Steer&Detect on Images 14 Nov 2017
Fundamental computational barriers in inverse problems and the mathematics of information27 Oct 2017
Variational use of B-splines and Kernel Based Functions27 Oct 2017
Deep learning based data manifold projection - a new regularization for inverse problems17 Oct 2017
GlobalBioIm Lib - v2: new tools, more flexibility, and improved composition rules.03 Oct 2017
Fractional Integral transforms and Time-Frequency Representations02 Jun 2017
First steps toward fast PET reconstruction30 May 2017
Lipid membranes and surface reconstruction - a biologically inspired method for 3D segmentation16 May 2017
Optical Diffraction Tomography: Principles and Algorithms09 May 2017
Compressed Sensing for Dose Reduction in STEM Tomography11 Apr 2017
Chasing Mycobacteria10 Apr 2017
Multifractal analysis for signal and image classification23 Mar 2017
Inverse problems and multimodality for biological imaging28 Feb 2017
A unified reconstruction framework for coherent imaging24 Jan 2017
BPConvNet for compressed sensing recovery in bioimaging10 Jan 2017
Steerable template detection based on maximum correlation: preliminary results13 Dec 2016
Opportunities in Computational Imaging for Biomicroscopy06 Dec 2016
A multiple scattering approach to diffraction tomography30 Nov 2016
Learning Optimal Shrinkage Splines for ADMM Algorithms22 Nov 2016
SIGGRAPH ASIA 201601 Nov 2016
Lévy's Persian summers18 Oct 2016