A reconstruction method for cone-beam differential x-ray phase-contrast computed tomography
Fu, Jian ; Velroyen, Astrid ; Tan, Renbo ; Zhang, Junwei ; Chen, Liyuan ; Tapfer, Arne ; Bech, Martin LU
and Pfeiffer, Franz
(2012)
In Optics Express
20(19).
p.21512-21519
- Abstract
- Most existing differential phase-contrast computed tomography (DPC-CT) approaches are based on three kinds of scanning geometries, described by parallel-beam, fan-beam and cone-beam. Due to the potential of compact imaging systems with magnified spatial resolution, cone-beam DPC-CT has attracted significant interest. In this paper, we report a reconstruction method based on a back-projection filtration (BPF) algorithm for cone-beam DPC-CT. Due to the differential nature of phase contrast projections, the algorithm restrains from differentiation of the projection data prior to back-projection, unlike BPF algorithms commonly used for absorption-based CT data. This work comprises a numerical study of the algorithm and its experimental... (More)
- Most existing differential phase-contrast computed tomography (DPC-CT) approaches are based on three kinds of scanning geometries, described by parallel-beam, fan-beam and cone-beam. Due to the potential of compact imaging systems with magnified spatial resolution, cone-beam DPC-CT has attracted significant interest. In this paper, we report a reconstruction method based on a back-projection filtration (BPF) algorithm for cone-beam DPC-CT. Due to the differential nature of phase contrast projections, the algorithm restrains from differentiation of the projection data prior to back-projection, unlike BPF algorithms commonly used for absorption-based CT data. This work comprises a numerical study of the algorithm and its experimental verification using a dataset measured with a three-grating interferometer and a micro-focus x-ray tube source. Moreover, the numerical simulation and experimental results demonstrate that the proposed method can deal with several classes of truncated cone-beam datasets. We believe that this feature is of particular interest for future medical cone-beam phase-contrast CT imaging applications. (C) 2012 Optical Society of America (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3146797
- author
- Fu, Jian
; Velroyen, Astrid
; Tan, Renbo
; Zhang, Junwei
; Chen, Liyuan
; Tapfer, Arne
; Bech, Martin
LU
and Pfeiffer, Franz
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Optics Express
- volume
- 20
- issue
- 19
- pages
- 21512 - 21519
- publisher
- Optical Society of America
- external identifiers
-
- wos:000308865600090
- scopus:84866241141
- ISSN
- 1094-4087
- DOI
- 10.1364/OE.20.021512
- language
- English
- LU publication?
- yes
- id
- 16473226-4f64-484a-af79-125b7eb6867f (old id 3146797)
- date added to LUP
- 2016-04-01 13:02:06
- date last changed
- 2022-01-27 08:57:08
@article{16473226-4f64-484a-af79-125b7eb6867f,
abstract = {{Most existing differential phase-contrast computed tomography (DPC-CT) approaches are based on three kinds of scanning geometries, described by parallel-beam, fan-beam and cone-beam. Due to the potential of compact imaging systems with magnified spatial resolution, cone-beam DPC-CT has attracted significant interest. In this paper, we report a reconstruction method based on a back-projection filtration (BPF) algorithm for cone-beam DPC-CT. Due to the differential nature of phase contrast projections, the algorithm restrains from differentiation of the projection data prior to back-projection, unlike BPF algorithms commonly used for absorption-based CT data. This work comprises a numerical study of the algorithm and its experimental verification using a dataset measured with a three-grating interferometer and a micro-focus x-ray tube source. Moreover, the numerical simulation and experimental results demonstrate that the proposed method can deal with several classes of truncated cone-beam datasets. We believe that this feature is of particular interest for future medical cone-beam phase-contrast CT imaging applications. (C) 2012 Optical Society of America}},
author = {{Fu, Jian and Velroyen, Astrid and Tan, Renbo and Zhang, Junwei and Chen, Liyuan and Tapfer, Arne and Bech, Martin and Pfeiffer, Franz}},
issn = {{1094-4087}},
language = {{eng}},
number = {{19}},
pages = {{21512--21519}},
publisher = {{Optical Society of America}},
series = {{Optics Express}},
title = {{A reconstruction method for cone-beam differential x-ray phase-contrast computed tomography}},
url = {{http://dx.doi.org/10.1364/OE.20.021512}},
doi = {{10.1364/OE.20.021512}},
volume = {{20}},
year = {{2012}},
}