| DOI | Trouver le DOI : https://doi.org/10.1016/j.jqsrt.2010.08.030 |
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| Auteur | Rechercher : Balima, O.; Rechercher : Boulanger, J.1; Rechercher : Charette, A.; Rechercher : Marceau, D. |
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| Affiliation | - Conseil national de recherches du Canada
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| Format | Texte, Article |
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| Sujet | Adjoint methods; Discrete ordinates; Finite elements; Frequency domain; Lagrangian formulation; Radiative transfer equation; Frequency domain analysis; Lagrange multipliers; Least squares approximations; Optical tomography; Radiative transfer; Time domain analysis; Finite element method; adjoint method; boundary condition; empirical analysis; finite element method; forward modeling; radiative transfer; tomography |
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| Résumé | This two part study introduces new developments in frequency domain optical tomography to take into account the collimated source direction in the computation of both the forward and the adjoint models. The solution method is based on the least square finite element method associated to the discrete ordinates method where no empirical stabilization is needed. In this first part of the study, the solution method of the forward model is highlighted with an easy handling of complex boundary condition through a penalization method. Gradient computation from an adjoint method is developed rigorously in a continuous manner through a lagrangian formalism for the deduction of the adjoint equation and the gradient of the objective function. The proposed formulation can be easily generalized to stationary and time domain optical tomography by keeping the same expressions. © 2010 Elsevier Ltd. |
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| Date de publication | 2011 |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 21271652 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 5105ccfc-605e-4d52-8d89-82e32db13fe5 |
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| Enregistrement créé | 2014-03-24 |
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| Enregistrement modifié | 2020-04-21 |
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