activity
20132023
most citedA Fourier approach to the inverse source problem in an absorbing and anisotropic scattering medium

13 citations · 25 across the 8 of their papers we have counts for

collaborators

8 papers

math.AP2023

Inversion of the Momenta Doppler Transform in two dimensions

Hiroshi Fujiwara, David Omogbhe, Kamran Sadiq +1

We introduce an analytic method which stably reconstructs both components of a (sufficiently) smooth, real valued, vector field compactly supported in the plane from knowledge of i…

math.NA2022★ 1 cited

Numerical reconstruction of radiative sources from partial boundary measurements

Hiroshi Fujiwara, Kamran Sadiq, Alexandru Tamasan

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 mea…

math.AP2021

A source reconstruction method in two dimensional radiative transport using boundary data measured on an arc

Hiroshi Fujiwara, Kamran Sadiq, Alexandru Tamasan

We consider an inverse source problem in the stationary radiating transport through a two dimensional absorbing and scattering medium. Of specific interest, the exiting radiation i…

math.NA2019★ 9 cited

Numerical reconstruction of radiative sources in an absorbing and non-diffusing scattering medium in two dimensions

Hiroshi Fujiwara, Kamran Sadiq, Alexandru Tamasan

We consider the two dimensional quantitative imaging problem of recovering a radiative source inside an absorbing and scattering medium from knowledge of the outgoing radiation mea…

math.AP2019★ 13 cited

A Fourier approach to the inverse source problem in an absorbing and anisotropic scattering medium

Hiroshi Fujiwara, Kamran Sadiq, Alexandru Tamasan

We revisit the inverse source problem in a two dimensional absorbing and scattering medium and present a non-iterative reconstruction method using measurements of the radiating flu…

math.AP2017★ 1 cited

Partial inversion of the 2D attenuated -ray transform with data on an arc

Hiroshi Fujiwara, Kamran Sadiq, Alexandru Tamasan

In two dimensions, we consider the problem of inversion of the attenuated -ray transform of a compactly supported function from data restricted to lines leaning on a given arc.…

math.NA2014★ 1 cited

An Accurate Quadrature Rule on the Sphere for Fast Computation of the Radiative Transport Equation

Hiroshi Fujiwara

We present an accurate quadrature formula on the sphere with less localized quadrature points for efficient numerical computation of the radiative transport equation (RTE) in the t…

math.NA2013

Stability and Convergence of an Upwind Finite Difference Scheme for the Radiative Transport Equation

Nobuyuki Higashimori, Hiroshi Fujiwara

An explicit numerical scheme is proposed for solving the initial-boundary value problem for the radiative transport equation in a rectangular domain with completely absorbing bound…