Search Results for author: Frédéric Poitevin

Found 6 papers, 1 papers with code

Scalable 3D Reconstruction From Single Particle X-Ray Diffraction Images Based on Online Machine Learning

no code implementations22 Dec 2023 Jay Shenoy, Axel Levy, Frédéric Poitevin, Gordon Wetzstein

X-ray free-electron lasers (XFELs) offer unique capabilities for measuring the structure and dynamics of biomolecules, helping us understand the basic building blocks of life.

3D Reconstruction Pose Estimation

Identifying Interpretable Visual Features in Artificial and Biological Neural Systems

no code implementations17 Oct 2023 David Klindt, Sophia Sanborn, Francisco Acosta, Frédéric Poitevin, Nina Miolane

Single neurons in neural networks are often interpretable in that they represent individual, intuitively meaningful features.

Disentanglement

CryoChains: Heterogeneous Reconstruction of Molecular Assembly of Semi-flexible Chains from Cryo-EM Images

no code implementations12 Jun 2023 Bongjin Koo, Julien Martel, Ariana Peck, Axel Levy, Frédéric Poitevin, Nina Miolane

Cryogenic electron microscopy (cryo-EM) has transformed structural biology by allowing to reconstruct 3D biomolecular structures up to near-atomic resolution.

3D Reconstruction Cryogenic Electron Microscopy (cryo-EM)

CryoAI: Amortized Inference of Poses for Ab Initio Reconstruction of 3D Molecular Volumes from Real Cryo-EM Images

1 code implementation15 Mar 2022 Axel Levy, Frédéric Poitevin, Julien Martel, Youssef Nashed, Ariana Peck, Nina Miolane, Daniel Ratner, Mike Dunne, Gordon Wetzstein

We introduce cryoAI, an ab initio reconstruction algorithm for homogeneous conformations that uses direct gradient-based optimization of particle poses and the electron scattering potential from single-particle cryo-EM data.

Computational Efficiency

Estimation of Orientation and Camera Parameters from Cryo-Electron Microscopy Images with Variational Autoencoders and Generative Adversarial Networks

no code implementations19 Nov 2019 Nina Miolane, Frédéric Poitevin, Yee-Ting Li, Susan Holmes

As such, it opens the door to geometric approaches for unsupervised estimations of orientations and camera parameters, making possible fast cryo-EM biomolecule reconstruction.

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