title: Note: Reconstruction of fluid flows in porous media using geometric a priori information.
abstract: X-ray tomography typically suffers from insufficient temporal resolution when imaging dynamic processes. Using the example of multiphase flow in solid porous media, we adapt an iterative algorithm to compute 3d tomograms from 2d projections, which allows for a significant reduction of scan time while maintaining a high level of reconstruction quality. To this end, a priori knowledge about the porous medium is incorporated into the reconstruction algorithm. This algorithm is universal when monitoring dynamic changes in any static matrix and allows for an at least five times decreased imaging time with respect to standard reconstruction algorithms.
authors.affiliation: Fraunhofer Institute Non-Destructive Testing IZFP, Saarbrücken, Germany.
authors.forename: Michael
authors.initials: M
authors.lastname: Maisl
authors.affiliation: Max Planck Institute for Dynamics and Self-Organization, Göttingen, Germany.
authors.forename: Hagen
authors.initials: H
authors.lastname: Scholl
authors.affiliation: Fraunhofer Institute Non-Destructive Testing IZFP, Saarbrücken, Germany.
authors.forename: Christian
authors.initials: C
authors.lastname: Schorr
authors.affiliation: Max Planck Institute for Dynamics and Self-Organization, Göttingen, Germany.
authors.forename: Ralf
authors.initials: R
authors.lastname: Seemann