title: Efficient implementation of a local tomography reconstruction algorithm.
abstract: We propose an efficient implementation of an interior tomography reconstruction method based on a known subregion. This method iteratively refines a reconstruction, aiming at reducing the local tomography artifacts. To cope with the ever increasing data volumes, this method is highly optimized on two aspects: firstly, the problem is reformulated to reduce the number of variables, and secondly, the operators involved in the optimization algorithms are efficiently implemented. Results show that [Formula: see text] slices can be processed in tens of seconds, while being beyond the reach of equivalent exact local tomography method.
authors.affiliation: ESRF-The European Synchrotron, 71 avenue des Martyrs, 38043 Grenoble, France.|Université de Grenoble, 11 Rue des Mathématiques, 38400 Saint-Martin-d'Hères, France.
authors.forename: Pierre
authors.identifier: 0000-0002-5774-5404
authors.initials: P
authors.lastname: Paleo
authors.affiliation: Université de Grenoble, 11 Rue des Mathématiques, 38400 Saint-Martin-d'Hères, France.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Mirone
keywords: Interior problem; Local tomography; Reconstruction algorithm; Tomography