Zobrazeno 1 - 10
of 353
pro vyhledávání: '"R. D. Speller"'
Publikováno v:
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLI-B5, Pp 25-31 (2016)
X-ray computed tomography (XCT) is a rising technology within many industries and sectors with a demand for dimensional metrology, defect, void analysis and reverse engineering. There are many variables that can affect the dimensional metrology of ob
Externí odkaz:
https://doaj.org/article/3d17641282b54e2183967ee4fc58a840
Autor:
P R T, Munro, M, Endrizzi, P C, Diemoz, C K, Hagen, M B, Szafraniec, T P, Millard, C E, Zapata, R D, Speller, A, Olivo
Publikováno v:
Philosophical transactions. Series A, Mathematical, physical, and engineering sciences. 372(2010)
The principal limitation to the widespread deployment of X-ray phase imaging in a variety of applications is probably versatility. A versatile X-ray phase imaging system must be able to work with polychromatic and non-microfocus sources (for example,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::caa97c584e983197164d378f4153d762
https://pubmed.ncbi.nlm.nih.gov/24470413
https://pubmed.ncbi.nlm.nih.gov/24470413
Autor:
J. A. GRIFFITHS, C. VENANZI, R. D. SPELLER, G. J. ROYLE, M. G. METAXAS, C. ESBRAND, P. F. VAN DER STELT, G. LI, H. VERHEIJ, R. TURCHETTA, A. FANT, P. GASIOREK, S. THEODORIDIS, H. GEORGIOU, D. CAVOURAS, G. HALL, M. NOY, J. JONES, J. LEAVER, D. MACHIN, S. GREENWOOD, M. KHALEEQ, J. ØSTBY, H. SCHULERUD, F. TRIANTIS, A. ASIMIDIS, D. BOLANAKIS, N. MANTHOS, A. BERGAMASCHI, LONGO, RENATA
I-ImaS (Intelligent Imaging Sensors) is a European project aiming to produce new, intelligent x-my imaging systems using novel APS sensors to create optimal diagnostic images. Initial systems have been constructed for medical imaging; specifically ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d987adf373e172b03efe5f07f6687c5c
https://hdl.handle.net/11368/1847753
https://hdl.handle.net/11368/1847753
Autor:
A, Olivo, S, Gkoumas, M, Endrizzi, C K, Hagen, M B, Szafraniec, P C, Diemoz, P R T, Munro, K, Ignatyev, B, Johnson, J A, Horrocks, S J, Vinnicombe, J L, Jones, R D, Speller
Publikováno v:
Medical physics. 40(9)
To provide an x-ray phase contrast imaging (XPCI) method working with conventional sources that could be readily translated into clinical practice. XPCI shows potential in synchrotron studies but attempts at translating it for use with conventional s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::679a37fd92743e0e44cd5ba38405041f
https://pubmed.ncbi.nlm.nih.gov/24007133
https://pubmed.ncbi.nlm.nih.gov/24007133
Autor:
K. Ignatyev, P. R. T. Munro, R. D. Speller, A. Olivo, Ian McNulty, Catherine Eyberger, Barry Lai
Publikováno v:
AIP Conference Proceedings.
X‐ray phase contrast imaging is a powerful technique that allows detection of changes in the phase of x‐ray wavefronts as they pass through a sample. As a result, details not visible in conventional x‐ray absorption imaging can be detected. Unt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b721447bf60632904fa4557971e2f75
https://doi.org/10.1063/1.3625352
https://doi.org/10.1063/1.3625352
Autor:
R D Speller, T Baba-Hamed
Publikováno v:
Physics in Medicine and Biology. 38:379-388
In the past dual-energy techniques have been applied with a variety of detector systems. However, making clinical decisions during a diagnostic x-ray procedure by using dual-energy information has not been possible. This paper looks at the developmen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::438a8f4a3496d02465b33078c36f39f1
https://doi.org/10.1088/0031-9155/38/3/005
https://doi.org/10.1088/0031-9155/38/3/005
Publikováno v:
Medical physics. 37(4)
In this article, the image quality of reconstructed volumes by four algorithms for digital tomosynthesis, applied in the case of breast, is investigated using synchrotron radiation.An angular data set of 21 images of a complex phantom with heterogene
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::75d05ea54a9b90bd0635390d3742547f
https://pubmed.ncbi.nlm.nih.gov/20443511
https://pubmed.ncbi.nlm.nih.gov/20443511
Autor:
M J Mooney, R D Speller
Publikováno v:
Physics in Medicine and Biology. 37:1873-1882
Bone density measurements are frequently carried out using photon absorptiometry techniques. The analysis of data collected in this way depends upon scatter-free detector signals. In practice the detector and source collimation lead to high levels of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d34ed054113df9b05dfa7df0357cd3ee
https://doi.org/10.1088/0031-9155/37/10/005
https://doi.org/10.1088/0031-9155/37/10/005
Autor:
R D, Speller, G J, Royle
Publikováno v:
Journal of X-Ray Science and Technology. 3:77-84
Diffraction studies of polyenergetic x-ray beams at low angles can be used to investigate tissues. Recent evidence on molecular form factors indicates that unique "fingerprints" exist for materials in the form of scattering information at angles betw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb9082c65fa2896694f52ff313adb1b9
https://doi.org/10.3233/xst-1992-3201
https://doi.org/10.3233/xst-1992-3201
Publikováno v:
Medical physics. 36(1)
Complementary metal-oxide-semiconductors (CMOS) active pixel sensors can be optically coupled to CsI:Tl phosphors forming a indirect active pixel flat panel imager (APFPI) for high performance medical imaging. The aim of this work is to determine the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::72c0cbdaa2fca4760826147c028ef7a4
https://pubmed.ncbi.nlm.nih.gov/19235380
https://pubmed.ncbi.nlm.nih.gov/19235380