Inverse problem for the 3D equation of radiative transfer
We present the first three-dimensional tomographic reconstruction scheme for general geometries and arbitrary spatial material distributions that is based on the equation of radiative transfer. This scheme builds on the concept of model-based iterative image reconstruction, in which a forward model provides prediction of detector readings, and a gradient-based updating scheme minimizes an objective function. The gradient of the objective function is found by employing an adjoint differentiation method.
KeywordsInverse Problem Radiative Transfer Forward Model Mesh Node Reconstruction Scheme
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