Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Jens Gregor"'
Publikováno v:
Frontiers in Physics, Vol 11 (2023)
Objectives: Positron emission tomography (PET) is affected by various kinds of patient movement during a scan. Frame-by-frame image registration is one of the most practiced motion correction techniques. In recent years, deep learning has shown a rem
Externí odkaz:
https://doaj.org/article/22a1da3dfd004a3e908770526eef8060
Publikováno v:
PLoS ONE, Vol 17, Iss 8, p e0272768 (2022)
ObjectivesPositron emission tomography (PET) is susceptible to patient movement during a scan. Head motion is a continuing problem for brain PET imaging and diagnostic assessments. Physical head restraints and external motion tracking systems are mos
Externí odkaz:
https://doaj.org/article/4e98b87cfd7a4bebbf03e1871ed29915
Publikováno v:
PLoS ONE, Vol 10, Iss 4, p e0122780 (2015)
This paper addresses 123I and 125I dual isotope SPECT imaging, which can be challenging because of spectrum overlap in the low energy spectrums of these isotopes. We first quantify the contribution of low-energy photons from each isotope using GATE-b
Externí odkaz:
https://doaj.org/article/2970637d89404dc1910043440d33bc86
Publikováno v:
Molecular Imaging, Vol 12 (2013)
This article presents and validates a newly developed GATE model of the Siemens Inveon trimodal imaging platform. Fully incorporating the positron emission tomography (PET), single-photon emission computed tomography (SPECT), and computed tomography
Externí odkaz:
https://doaj.org/article/28150a5f1c024629a3e8904114ee7888
Autor:
Mary Eibl, John F. Thomas, Hassina Z. Bilheux, Charles E. A. Finney, Jens Gregor, Melanie Moses-DeBusk, Josh A. Pihl, John M. E. Storey, Todd J. Toops
Publikováno v:
Emission Control Science and Technology. 6:301-314
The results of an experimental study on the oxidation behavior of loaded gasoline particulate filters (GPFs) from a gasoline direct injection (GDI) engine are reported. PM was loaded on uncatalyzed cordierite GPF mini-cores by exposure to exhaust fro
Publikováno v:
International Journal of Smart Grid and Clean Energy. :485-494
Publikováno v:
Electronics, Vol 9, Iss 1747, p 1747 (2020)
Electronics
Volume 9
Issue 10
Electronics
Volume 9
Issue 10
The complexity and throughput of computer networks are rapidly increasing as a result of the proliferation of interconnected devices, data-driven applications, and remote working. Providing situational awareness for computer networks requires monitor
Autor:
Jens Gregor, William Whiteley
Publikováno v:
2019 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC).
Direct neural network image reconstructions methods from raw data are notoriously memory inefficient in the transformation from the measurement space domain to image space by use of one or more fully connected layers. This inefficiency has thus far l