Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Juan F P J Abascal"'
Publikováno v:
PLoS ONE, Vol 11, Iss 3, p e0149841 (2016)
Low-dose protocols for respiratory gating in cardiothoracic small-animal imaging lead to streak artifacts in the images reconstructed with a Feldkamp-Davis-Kress (FDK) method. We propose a novel prior- and motion-based reconstruction (PRIMOR) method,
Externí odkaz:
https://doaj.org/article/ed4f6730b9594fc8bbd5f994d72cbe0d
Publikováno v:
PLoS ONE, Vol 10, Iss 3, p e0120140 (2015)
Respiratory gating helps to overcome the problem of breathing motion in cardiothoracic small-animal imaging by acquiring multiple images for each projection angle and then assigning projections to different phases. When this approach is used with a d
Externí odkaz:
https://doaj.org/article/5557038205604394a25755c1864e4b0f
Publikováno v:
PLoS ONE, Vol 9, Iss 10, p e110594 (2014)
PURPOSE: Compressed sensing (CS) has been widely applied to prospective cardiac cine MRI. The aim of this work is to study the benefits obtained by including motion estimation in the CS framework for small-animal retrospective cardiac cine. METHODS:
Externí odkaz:
https://doaj.org/article/fff2db6941954d7eb21650fbc4a75467
Autor:
Juan F. P. J. Abascal, Nicolas Ducros, Valeriya Pronina, Simon Rit, Pierre-Antoine Rodesch, Thomas Broussaud, Suzanne Bussod, Philippe C. Douek, Andreas Hauptmann, Simon Arridge, Francoise Peyrin
Publikováno v:
IEEE Access, Vol 9, Pp 25632-25647 (2021)
The state-of-the art for solving the nonlinear material decomposition problem in spectral computed tomography is based on variational methods, but these are computationally slow and critically depend on the particular choice of the regularization fun
Externí odkaz:
https://doaj.org/article/c8a83afdb71c4adb86fc71df4f991faa
Publikováno v:
Sensors, Vol 18, Iss 11, p 4014 (2018)
Electrical resistance tomography (ERT) is an imaging technique to recover the conductivity distribution with boundary measurements via attached electrodes. There are a wide range of applications using ERT for image reconstruction or parameter calcula
Externí odkaz:
https://doaj.org/article/4690a5b6a0104e65a7260d5ec04a4fa0
Autor:
Nicolas Ducros, Françoise Peyrin, Juan F. P. J. Abascal, Valeriya Pronina, Dmitry V. Dylov, Antonio Lorente Mur
Publikováno v:
Optics Express
Optics Express, Optical Society of America-OSA Publishing, 2021, 29 (24), pp.39559. ⟨10.1364/OE.443134⟩
Optics Express, 2021, 29 (24), pp.39559. ⟨10.1364/OE.443134⟩
Optics Express, Optical Society of America-OSA Publishing, 2021, 29 (24), pp.39559. ⟨10.1364/OE.443134⟩
Optics Express, 2021, 29 (24), pp.39559. ⟨10.1364/OE.443134⟩
Single-pixel imaging acquires an image by measuring its coefficients in a transform domain, thanks to a spatial light modulator. However, as measurements are sequential, only a few coefficients can be measured in the real-time applications. Therefore
Publikováno v:
Sensors, Vol 18, Iss 6, p 1704 (2018)
Electrical resistance tomography (ERT) has been considered as a data collection and image reconstruction method in many multi-phase flow application areas due to its advantages of high speed, low cost and being non-invasive. In order to improve the q
Externí odkaz:
https://doaj.org/article/007762deb27547bc8cf7577a797a3661
Autor:
Frank Verhaegen, Salim Si-Mohamed, Ilaria Rinaldi, Juan F. P. J. Abascal, Isabel P. Almeida, Françoise Peyrin, Guillaume Landry, Katia Parodi, Simon Rit, Fabian Dörringer, Philippe Douek
Publikováno v:
Medical Physics
Medical Physics, American Association of Physicists in Medicine, 2019, 46 (4), pp.1821-1828. ⟨10.1002/mp.13404⟩
Medical Physics, 46(4), 1821-1828. Wiley
Medical Physics, American Association of Physicists in Medicine, 2019, 46 (4), pp.1821-1828. ⟨10.1002/mp.13404⟩
Medical Physics, 46(4), 1821-1828. Wiley
PurposeThe objective of this technical note was to investigate the accuracy of proton stopping power relative to water (RSP) estimation using a novel dual-layer, dual-energy computed tomography (DL-DECT) scanner for potential use in proton therapy pl
Autor:
Nicolas Ducros, Françoise Peyrin, Simon R. Arridge, Andreas Hauptmann, S. Bussod, Christine Chappard, Juan F P J Abascal
Publikováno v:
2020 28th European Signal Processing Conference (EUSIPCO)
2020 28th European Signal Processing Conference (EUSIPCO), Jan 2021, Amsterdam, Netherlands. pp.1259-1263, ⟨10.23919/Eusipco47968.2020.9287781⟩
EUSIPCO
2020 28th European Signal Processing Conference (EUSIPCO), Jan 2021, Amsterdam, Netherlands. pp.1259-1263, ⟨10.23919/Eusipco47968.2020.9287781⟩
EUSIPCO
Spectral computed tomography acquires energy-resolved data that allows recovery of densities of constituents of an object. This can be achieved by decomposing the measured spectral projection into material projections, and passing these decomposed pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af4dff87a0d32ab157385f33d4f4afcd
https://hal.archives-ouvertes.fr/hal-03234334
https://hal.archives-ouvertes.fr/hal-03234334
Autor:
Nicolas Ducros, Françoise Peyrin, Christine Chappard, Philippe Douek, Juan F P J Abascal, S. Bussod, Salim Si-Mohamed
Publikováno v:
28th European Signal Processing Conference (EUSIPCO)
28th European Signal Processing Conference (EUSIPCO), Jan 2021, Amsterdam, Netherlands. ⟨10.23919/Eusipco47968.2020.9287607⟩
EUSIPCO
28th European Signal Processing Conference (EUSIPCO), Jan 2021, Amsterdam, Netherlands. ⟨10.23919/Eusipco47968.2020.9287607⟩
EUSIPCO
International audience; Denoising algorithms via sparse representation are among the state-of-the art for image restoration. On previous work, we proposed SPADE-a sparse-and prior-based method for 3D-image denoising. In this work, we extend this idea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9d0f3bf3adc114b52d1bba8cc1d8b35
https://hal.archives-ouvertes.fr/hal-02500664
https://hal.archives-ouvertes.fr/hal-02500664