Différences
Ci-dessous, les différences entre deux révisions de la page.
| Les deux révisions précédentesRévision précédenteProchaine révision | Révision précédente |
| accueil [2013/03/19 12:13] – desbat | accueil [2024/08/12 14:47] (Version actuelle) – modification externe 127.0.0.1 |
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| ====== DROITE: Dynamic ROI tomography, Theory and Experiments ====== | ====== DROITE: Dynamic ROI tomography, Theory and Experiments ====== |
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| DROITE is the ANR project ANR-12-BS01-0018. | DROITE is the [[http://www.agence-nationale-recherche.fr/en/project-based-funding-to-advance-french-research/|ANR]] project ANR-12-BS01-0018. |
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| DROITE is a fundamental research project. Computed tomography aims at reconstructing images of internal physical quantities (attenuation coefficients, radioactivity concentrations) from external measurements (X-ray projections, radiation detectors). To first order, these measurements can be mathematically modeled by the Radon transform: straight line integrals of the unknown function. The problem to solve is the reconstruction of a function from a set of line integrals. Solving this problem led to the development of CT medical scanners, PET and SPECT. However, open questions remain that restrict the use of such systems in certain circumstances: | DROITE is a fundamental research project. Computed tomography aims at reconstructing images of internal physical quantities (attenuation coefficients, radioactivity concentrations) from external measurements (X-ray projections, radiation detectors). To first order, these measurements can be mathematically modeled by the Radon transform: straight line integrals of the unknown function. The problem to solve is the reconstruction of a function from a set of line integrals. Solving this problem led to the development of CT medical scanners, PET and SPECT. However, open questions remain that restrict the use of such systems in certain circumstances: |
