title: Compensation of optode sensitivity and position errors in diffuse optical tomography using the approximation error approach.
abstract: Diffuse optical tomography is highly sensitive to measurement and modeling errors. Errors in the source and detector coupling and positions can cause significant artifacts in the reconstructed images. Recently the approximation error theory has been proposed to handle modeling errors. In this article, we investigate the feasibility of the approximation error approach to compensate for modeling errors due to inaccurately known optode locations and coupling coefficients. The approach is evaluated with simulations. The results show that the approximation error method can be used to recover from artifacts in reconstructed images due to optode coupling and position errors.
authors.affiliation: Department of Applied Physics, University of Eastern Finland P.O. Box 1627, 70211 Kuopio, Finland.
authors.forename: Meghdoot
authors.initials: M
authors.lastname: Mozumder
authors.forename: Tanja
authors.initials: T
authors.lastname: Tarvainen
authors.forename: Simon R
authors.initials: SR
authors.lastname: Arridge
authors.forename: Jari
authors.initials: J
authors.lastname: Kaipio
authors.forename: Ville
authors.initials: V
authors.lastname: Kolehmainen
keywords: (100.3190) Inverse problems; (170.3010) Image reconstruction techniques; (170.6960) Tomography; (290.7050) Turbid media