[PDF][PDF] Upscaling X-ray nanoimaging to macroscopic specimens
Upscaling X-ray nanoimaging to macroscopic specimens has the potential for providing
insights across multiple length scales, but its feasibility has long been an open question. By …
insights across multiple length scales, but its feasibility has long been an open question. By …
Adorym: A multi-platform generic X-ray image reconstruction framework based on automatic differentiation
We describe and demonstrate an optimization-based X-ray image reconstruction framework
called Adorym. Our framework provides a generic forward model, allowing one code …
called Adorym. Our framework provides a generic forward model, allowing one code …
Using automatic differentiation as a general framework for ptychographic reconstruction
Coherent diffraction imaging methods enable imaging beyond lens-imposed resolution
limits. In these methods, the object can be recovered by minimizing an error metric that …
limits. In these methods, the object can be recovered by minimizing an error metric that …
Three dimensions, two microscopes, one code: Automatic differentiation for x-ray nanotomography beyond the depth of focus limit
Conventional tomographic reconstruction algorithms assume that one has obtained pure
projection images, involving no within-specimen diffraction effects nor multiple scattering …
projection images, involving no within-specimen diffraction effects nor multiple scattering …
Overcoming information reduced data and experimentally uncertain parameters in ptychography with regularized optimization
The overdetermination of the mathematical problem underlying ptychography is reduced by
a host of experimentally more desirable settings. Furthermore, reconstruction of the sample …
a host of experimentally more desirable settings. Furthermore, reconstruction of the sample …
Phase-contrast imaging of multiply-scattering extended objects at atomic resolution by reconstruction of the scattering matrix
Three-dimensional phase-contrast imaging of multiply-scattering samples in x-ray and
electron microscopy is challenging due to small numerical apertures, the unavailability of …
electron microscopy is challenging due to small numerical apertures, the unavailability of …
Coupled ptychography and tomography algorithm improves reconstruction of experimental data
Three-dimensional (3D) x-ray microscopy by ptychographic tomography requires elaborate
numerical reconstructions. We describe a coupled ptychography-tomography reconstruction …
numerical reconstructions. We describe a coupled ptychography-tomography reconstruction …
Joint ptycho-tomography reconstruction through alternating direction method of multipliers
We present the extension of ptychography for three-dimensional object reconstruction in a
tomography setting. We describe the alternating direction method of multipliers (ADMM) as a …
tomography setting. We describe the alternating direction method of multipliers (ADMM) as a …
Multigrid optimization for large-scale ptychographic phase retrieval
Ptychography is a popular imaging technique that combines diffractive imaging with
scanning microscopy. The technique consists of a coherent beam that is scanned across an …
scanning microscopy. The technique consists of a coherent beam that is scanned across an …
Multi-slice electron ptychographic tomography for three-dimensional phase-contrast microscopy beyond the depth of focus limits
Electron ptychography is a powerful computational method for atomic-resolution imaging
with high contrast for weakly and strongly scattering elements. Modern algorithms coupled …
with high contrast for weakly and strongly scattering elements. Modern algorithms coupled …