SIMULTANEOUS RECONSTRUCTION AND SEPARATION IN A SPECTRAL CT FRAMEWORK

Abstract : We propose a method to simultaneously separate and reconstruct the physical components of an object observed in the context of spectral Computed Tomography (CT). Spectral CT has been made possible by the technological breakthrough of X-ray hybrid pixel detectors in the last years and brings CT imaging from an anatomic to a functional biomedical imaging modality. We considers the polychromatic model and combines it with a low-rank prior on the components. The simultaneous separation and reconstruction of components is done by solving a non-convex ill-posed inverse problem. Promising results are shown on synthetic data with a simple regularization.
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http://hal.in2p3.fr/in2p3-01427020
Contributor : Souhil Tairi <>
Submitted on : Thursday, January 5, 2017 - 11:17:50 AM
Last modification on : Thursday, February 8, 2018 - 11:10:08 AM
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S. Tairi, S. Anthoine, C. Morel, Y Boursier. SIMULTANEOUS RECONSTRUCTION AND SEPARATION IN A SPECTRAL CT FRAMEWORK. ITWIST 2016, Aug 2016, Aalborg, Denmark. ⟨in2p3-01427020⟩

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