title: Integrated approach to the data processing of four-dimensional datasets from phase-contrast x-ray tomography.
abstract: Phase contrast X-ray tomography (PCT) enables the study of systems consisting of elements with similar atomic numbers. Processing datasets acquired using PCT is nontrivial because of the low-pass characteristics of the commonly used single-image phase retrieval algorithm. In this study, we introduce an image processing methodology that simultaneously utilizes both phase and attenuation components of an image obtained at a single detector distance. This novel method, combined with regularized Perona-Malik filter and bias-corrected fuzzy C-means algorithm, allows for automated segmentation of data acquired through four-dimensional PCT. Using this integrated approach, the three-dimensional coarsening morphology of an Aluminum-29.9 wt% Silicon alloy can be analyzed.
authors.forename: Ashwin J
authors.initials: AJ
authors.lastname: Shahani
authors.forename: E
authors.initials: E
authors.lastname: Begum Gulsoy
authors.forename: John W
authors.initials: JW
authors.lastname: Gibbs
authors.forename: Julie L
authors.initials: JL
authors.lastname: Fife
authors.forename: Peter W
authors.initials: PW
authors.lastname: Voorhees