Development of Iterative Algorithms for Industrial Tomography
A.V.Likhachov, V.V.Pickalov, N.V.Chugunova, V.A.Baranov*
Computerized Tomography Group, Institute of Theoretical and Applied Mechanics,
Novosibirsk 630090, Russia Pickalov@itam.nsc.ru
*Institute of Introscopy, Tomsk 634028, Russia
Abstract - The limited-angle problem and the divergence of the probing beam are considered as the features of industrial tomography. Modifications of the algebraic algorithms ART and MART are studied under limited-angle conditions. In particular, the non-linear backprojection estimations are suggested as a first guess. A new iterative algorithm based on the Neumann series decomposition is developed for the tomography in divergent beams. Numerical simulations are carried out.
Keywords: limited-angle tomography, iterative algorithms
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