Advanced

Super-resolution x-ray phase-contrast and dark-field imaging with a single 2D grating and electromagnetic source stepping

Rix, Kristian R. LU ; Dreier, Till LU ; Shen, Tao and Bech, Martin LU (2019) In Physics in Medicine and Biology 64(16). p.1-8
Abstract
Here we report a method for increased resolution of single exposure three modality x-ray images using super-resolution. The three x-ray image modalities are absorption-, differential phase- contrast-, and dark-field-images. To create super-resolution, a non-mechanically movable micro- focus x-ray source is used. A series of almost identical x-ray projection images is obtained while the point source is translated in a two-dimensional grid pattern. The three image modalities are extracted from fourier space using spatial harmonic analysis, also known as the single-shot method. Using super-resolution on the low-resolution series of the three modalities separately results in high- resolution images for the modalities. This approach allows to... (More)
Here we report a method for increased resolution of single exposure three modality x-ray images using super-resolution. The three x-ray image modalities are absorption-, differential phase- contrast-, and dark-field-images. To create super-resolution, a non-mechanically movable micro- focus x-ray source is used. A series of almost identical x-ray projection images is obtained while the point source is translated in a two-dimensional grid pattern. The three image modalities are extracted from fourier space using spatial harmonic analysis, also known as the single-shot method. Using super-resolution on the low-resolution series of the three modalities separately results in high- resolution images for the modalities. This approach allows to compensate for the inherent loss in resolution caused by the single-shot method without increasing the need for stability or algorithms accounting for possible motion. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
x-ray, Phase-contrast imaging, dark-field imaging, X-ray phase-contrast imaging, super-resolution imaging
in
Physics in Medicine and Biology
volume
64
issue
16
pages
8 pages
publisher
IOP Publishing
ISSN
1361-6560
DOI
10.1088/1361-6560/ab2ff5
language
English
LU publication?
yes
id
157179cf-7a03-4442-8e36-b263a92ba570
date added to LUP
2019-07-30 15:04:08
date last changed
2019-08-15 07:45:16
@article{157179cf-7a03-4442-8e36-b263a92ba570,
  abstract     = {Here we report a method for increased resolution of single exposure three modality x-ray images using super-resolution. The three x-ray image modalities are absorption-, differential phase- contrast-, and dark-field-images. To create super-resolution, a non-mechanically movable micro- focus x-ray source is used. A series of almost identical x-ray projection images is obtained while the point source is translated in a two-dimensional grid pattern. The three image modalities are extracted from fourier space using spatial harmonic analysis, also known as the single-shot method. Using super-resolution on the low-resolution series of the three modalities separately results in high- resolution images for the modalities. This approach allows to compensate for the inherent loss in resolution caused by the single-shot method without increasing the need for stability or algorithms accounting for possible motion.},
  author       = {Rix, Kristian R. and Dreier, Till and Shen, Tao and Bech, Martin},
  issn         = {1361-6560},
  keyword      = {x-ray,Phase-contrast imaging,dark-field imaging,X-ray phase-contrast imaging,super-resolution imaging},
  language     = {eng},
  month        = {08},
  number       = {16},
  pages        = {1--8},
  publisher    = {IOP Publishing},
  series       = {Physics in Medicine and Biology},
  title        = {Super-resolution x-ray phase-contrast and dark-field imaging with a single 2D grating and electromagnetic source stepping},
  url          = {http://dx.doi.org/10.1088/1361-6560/ab2ff5},
  volume       = {64},
  year         = {2019},
}