Search Results for author: Youssef S. G. Nashed

Found 6 papers, 2 papers with code

Real-time 3D Nanoscale Coherent Imaging via Physics-aware Deep Learning

no code implementations16 Jun 2020 Henry Chan, Youssef S. G. Nashed, Saugat Kandel, Stephan Hruszkewycz, Subramanian Sankaranarayanan, Ross J. Harder, Mathew J. Cherukara

Phase retrieval, the problem of recovering lost phase information from measured intensity alone, is an inverse problem that is widely faced in various imaging modalities ranging from astronomy to nanoscale imaging.

Astronomy Retrieval

InSituNet: Deep Image Synthesis for Parameter Space Exploration of Ensemble Simulations

no code implementations1 Aug 2019 Wenbin He, Junpeng Wang, Hanqi Guo, Ko-Chih Wang, Han-Wei Shen, Mukund Raj, Youssef S. G. Nashed, Tom Peterka

We propose InSituNet, a deep learning based surrogate model to support parameter space exploration for ensemble simulations that are visualized in situ.

Image Generation

Three dimensions, two microscopes, one code: automatic differentiation for x-ray nanotomography beyond the depth of focus limit

2 code implementations24 May 2019 Ming Du, Youssef S. G. Nashed, Saugat Kandel, Doga Gursoy, Chris Jacobsen

Conventional tomographic reconstruction algorithms assume that one has obtained pure projection images, involving no within-specimen diffraction effects nor multiple scattering.

Image and Video Processing Applied Physics Optics

High-energy coherent X-ray diffraction microscopy of polycrystal grains: first steps towards a multi-scale approach

1 code implementation28 Mar 2019 Siddharth Maddali, Jun-Sang Park, Hemant Sharma, Sarvjit Shastri, Peter Kenesei, Jonathan Almer, Ross Harder, Matthew J. Highland, Youssef S. G. Nashed, Stephan O. Hruszkewycz

We present proof-of-concept imaging measurements of a polycrystalline material that integrate the elements of conventional high-energy X-ray diffraction microscopy with coherent diffraction imaging techniques, and that can enable in-situ strain-sensitive imaging of lattice structure in ensembles of deeply embedded crystals over five decades of length scale upon full realization.

Materials Science Applied Physics

Real-time coherent diffraction inversion using deep generative networks

no code implementations7 Jun 2018 Mathew J. Cherukara, Youssef S. G. Nashed, Ross J. Harder

Phase retrieval, or the process of recovering phase information in reciprocal space to reconstruct images from measured intensity alone, is the underlying basis to a variety of imaging applications including coherent diffraction imaging (CDI).

Retrieval

Cannot find the paper you are looking for? You can Submit a new open access paper.