Truncated-Newton algorithm for three-dimensional electrical impedance tomography

M A Player, J van Weereld, A R Allen, D A L Collie

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

A truncated-Newton algorithm for three-dimensional electrical impedance tomography is presented. Explicit formation of the Hessian, normally a computational bottleneck, is avoided through use of a preconditioned conjugate gradient (PCG) solution of the Levenberg-Marquardt update. The PCG preconditioner is formed as a product of a sparse approximation of the Jacobian by its transpose.

Original languageEnglish
Pages (from-to)2189-2191
Number of pages3
JournalElectronics Letters
Volume35
Publication statusPublished - 1999

Keywords

  • RESISTANCE TOMOGRAPHY

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