34 citations · 86 across the 13 of their papers we have counts for
13 papers
Efficiency limits in in-line imaging
Timur E. Gureyev, David M. Paganin, Harry M. Quiney
In-line phase-contrast imaging, also known as propagation-based imaging or Gabor holography, is capable of delivering significant gains in image quality, compared to attenuation-ba…
On optimization of Paganin's method for propagation-based X-ray phase-contrast imaging and tomography
Timur E. Gureyev, David M. Paganin, Ashkan Pakzad +1
Paganin's method for image reconstruction in propagation-based phase-contrast X-ray imaging and tomography has enjoyed broad acceptance in recent years, with over one thousand publ…
Signal-to-noise and spatial resolution in in-line imaging. 3. Optimization using a simple model
T. E. Gureyev, D. M. Paganin, H. M. Quiney
The problem of optimization of propagation-based phase-contrast imaging setups is considered in the case of projection X-ray imaging and three-dimensional tomography with phase ret…
Signal-to-noise and spatial resolution in in-line imaging. 2. Phase-contrast tomography
T. E. Gureyev, D. M. Paganin, K. M. Pavlov +2
In the first part of this paper, quantitative aspects of propagation-based phase-contrast imaging (PBI) were investigated using theoretical and numerical approaches, as well as exp…
High-energy X-ray phase-contrast CT of an adult human chest phantom
Jannis N. Ahlers, Lorenzo D'Amico, Henriette Bast +15
Propagation-based phase-contrast X-ray imaging is a promising technique for in~vivo medical imaging, offering lower radiation doses than traditional attenuation-based imaging. Prev…
Signal-to-noise and spatial resolution in in-line imaging. 1. Basic theory, numerical simulations and planar experimental images
T. E. Gureyev, D. M. Paganin, H. M. Quiney
Signal-to-noise ratio and spatial resolution are quantitatively analysed in the context of in-line (propagation based) X-ray phase-contrast imaging. It is known that free-space pro…
Single-exposure elemental differentiation and texture-sensitive phase-retrieval imaging with a neutron counting micro-channel plate detector
Benedicta D. Arhatari, David M. Paganin, Henry Kirkwood +9
Micro-channel plate (MCP) detectors, when used at pulsed-neutron-source instruments, offer the possibility of high spatial resolution and high contrast imaging with pixel-level spe…
A method for virtual optical sectioning and tomography utilizing shallow depth of field
T. E. Gureyev, H. M. Quiney, L. J. Allen
A method is proposed for high-resolution, three-dimensional reconstruction of internal structure of objects from planar transmission images. The described approach can be used with…
Dark-field signal extraction in propagation-based phase-contrast imaging
T. E. Gureyev, D. M. Paganin, B. Arhatari +4
A method for extracting the dark-field signal in propagation-based phase-contrast imaging is proposed. In the case of objects consisting predominantly of a single material, or seve…
On electron imaging of small molecules, Part I: relative roles of multiple scattering and Fresnel diffraction
T. E. Gureyev, H. M. Quiney, A. Kozlov +1
The relative roles of multiple electron scattering and in-molecule free-space propagation in transmission electron microscopy of small molecules are discussed. It is argued that wh…
On electron imaging of small molecules, Part II: tomographic reconstruction from defocus series
T. E. Gureyev, H. M. Quiney, A. Kozlov +1
A practical method utilising three-dimensional image pattern matching is proposed which, in principle, is capable of unambiguous determination of the types and positions of atoms i…
On the efficiency of computational imaging with structured illumination
T. E. Gureyev, D. M. Paganin, A. Kozlov +2
A generic computational imaging setup is considered which assumes sequential illumination of a semi-transparent object by an arbitrary set of structured illumination patterns. For…
Monomorphous decomposition method for phase retrieval and phase-contrast tomography
T. E. Gureyev, Ya. I. Nesterets
We show that an arbitrary spatial distribution of complex refractive index inside an object can be exactly represented as a sum of two "monomorphous" complex distributions, i.e. th…