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相关论文: Inverse source problems in transport via attenuate…

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We consider a general setting for dynamic tensor field tomography in an inhomogeneous refracting and absorbing medium as inverse source problem for the associated transport equation. Following Fermat's principle the Riemannian metric in the…

偏微分方程分析 · 数学 2021-11-11 Lukas Vierus , Thomas Schuster

We study the direct and an inverse source problem for the radiative transfer equation arising in optical molecular imaging. We show that for generic absorption and scattering coefficients, the direct problem is well-posed and the inverse…

偏微分方程分析 · 数学 2008-03-31 Plamen Stefanov , Gunther Uhlmann

This paper is concerned with the inverse source problem for the transport equation with external force. We show that both direct and inverse problems are uniquely solvable for generic absorption and scattering coefficients. In particular,…

偏微分方程分析 · 数学 2021-04-27 Ru-Yu Lai , Hanming Zhou

This article is concerned with tensor field tomography in a fairly general setting, that takes refraction, attenuation and time-dependence of tensor fields into account. The mathematical model is given by attenuated ray transforms of the…

数值分析 · 数学 2026-01-19 Lukas Vierus , Thomas Schuster , Bernadette Hahn

The inverse source problem for the radiative transfer equation is considered, with partial data. Here it is shown that under certain smoothness conditions on the scattering and absorption coefficients, one can recover sources supported in a…

偏微分方程分析 · 数学 2015-05-28 Mark Hubenthal

We study forward and inverse problems for a semilinear radiative transport model where the absorption coefficient depends on the angular average of the transport solution. Our first result is the well-posedness theory for the transport…

偏微分方程分析 · 数学 2026-04-21 Kui Ren , Yimin Zhong

We consider an inverse transport problem in fluorescence ultrasound modulated optical tomography (fUMOT) with angularly averaged illuminations and measurements. We study the uniqueness and stability of the reconstruction of the absorption…

数学物理 · 物理学 2020-02-19 Wei Li , Yang Yang , Yimin Zhong

The inverse radiative transfer problem finds broad applications in medical imaging, atmospheric science, astronomy, and many other areas. This problem intends to recover the optical properties, denoted as absorption and scattering…

数值分析 · 数学 2017-08-08 Qin Li , Ruiwen Shu , Li Wang

We prove solenoidal injectivity for the geodesic X-ray transform of tensor fields on simple Riemannian manifolds with $C^{1,1}$ metrics and non-positive sectional curvature. The proof of the result rests on Pestov energy estimates for a…

微分几何 · 数学 2024-02-15 Joonas Ilmavirta , Antti Kykkänen

We consider an inverse problem for a radiative transport equation (RTE) in which boundary sources and measurements are restricted to a single subset $E$ of the boundary of the domain $\Omega$. We show that this problem can be solved…

偏微分方程分析 · 数学 2020-01-31 Francis J. Chung

We propose a method to reconstruct the density of an optical source in a highly scattering medium from ultrasound-modulated optical measurements. Our approach is based on the solution to a hybrid inverse source problem for the radiative…

偏微分方程分析 · 数学 2015-06-23 Guillaume Bal , Francis J. Chung , John C. Schotland

We consider in a two dimensional absorbing and scattering medium, an inverse source problem in the stationary radiative transport, where the source is linearly anisotropic. The medium has an anisotropic scattering property that is neither…

偏微分方程分析 · 数学 2022-11-02 David Omogbhe , Kamran Sadiq

This article considers the attenuated transport equation on Riemannian surfaces in the light of a novel twistor correspondence under which matrix attenuations correspond to holomorphic vector bundles on a complex surface. The main result is…

微分几何 · 数学 2023-04-18 Jan Bohr , Gabriel P. Paternain

Motivated by applications in imaging nonlinear optical absorption by photoacoustic tomography (PAT), we study in this work inverse coefficient problems for a semilinear radiative transport equation and its diffusion approximation with…

偏微分方程分析 · 数学 2021-07-20 Ru-Yu Lai , Kui Ren , Ting Zhou

We consider integral geometry inverse problems for unitary connections and skew-Hermitian Higgs fields on manifolds with negative sectional curvature. The results apply to manifolds in any dimension, with or without boundary, and also in…

偏微分方程分析 · 数学 2016-01-20 Colin Guillarmou , Gabriel P. Paternain , Mikko Salo , Gunther Uhlmann

We consider an inverse source problem for partially coherent light propagating in the Fresnel regime. The data is the coherence of the field measured away from the source. The reconstruction is based on a minimum residue formulation, which…

We consider an inverse source problem in the stationary radiative transport through an absorbing and scattering medium in two dimensions. Using the angularly resolved radiation measured on an arc of the boundary, we propose a numerical…

数值分析 · 数学 2023-06-08 Hiroshi Fujiwara , Kamran Sadiq , Alexandru Tamasan

In this paper we consider the geodesic X-ray transform with attenuation coefficient as a combination of smooth complex function and 1-form. We show that attenuated X-ray transform applied to the pair of tensors is injective modulo the…

微分几何 · 数学 2017-03-07 Yernat M. Assylbekov

We consider the inverse problem of recovering the optical properties of a highly-scattering medium from acousto-optic measurements. Using such measurements, we show that the scattering and absorption coefficients of the radiative transport…

偏微分方程分析 · 数学 2016-09-27 Francis J Chung , John C Schotland

In this paper, we consider the inverse scattering problem associated with an inhomogeneous media with a conductive boundary. First, we discuss the inverse conductivity problem of reconstructing the conductivity parameter from scattering…

偏微分方程分析 · 数学 2017-12-12 Isaac Harris , Andreas Kleefeld
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