Uniqueness and Non-uniqueness in inverse radiative transfer

Details Uniqueness and Non-uniqueness in inverse radiative transfer Uniqueness and Non-uniqueness in inverse radiative transfer

2008-09-15

arxiv.org/abs/0809.2570v1

Mathematics

Analysis of PDEs

Scientific paper

We characterize the non-uniqueness in the inverse problem for the stationary transport model, in which the absorption "a" and the scattering coefficient "k" are to be recovered from the albedo operator. We show that "gauge equivalent" pairs (a,k) yield the same albedo operator, and that we can recover uniquely the class of gauge equivalent pairs. We apply this result to show unique determination of the media when the absorption "a" depends on the line of travel through each point while scattering "k" obeys a symmetry property. Previously known results concerned directional independent absorption.

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