Name: Samuli Siltanen


CompanyName: Instrumentarium Imaging

Country: Finland

A. Nachman (1996) proved global uniqueness for the 2-D inverse conductivity problem using a constructive method of proof. In terms of electrical impedance tomography (EIT), this is an approximate model assuming that current flows in a 2-D slice of the 3-D body under imaging. Based on this proof, Siltanen, Mueller and Isaacson (2000) presented a new numerical reconstruction algorithm for EIT that solves the nonlinear problem directly without iteration. In the talk the algorithm is extended by introducing a new regularization scheme. As numerical examples we present reconstructions of conductivities from simlated boundary data containing simulated noise

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