Algebraic filter approach for fast approximation of nonlinear tomographic reconstruction methods

Linda Plantagie; Kees Joost Batenburg

doi:10.1117/1.JEI.24.1.013026

13 February 2015 Algebraic filter approach for fast approximation of nonlinear tomographic reconstruction methods

Linda Plantagie, Kees Joost Batenburg

Author Affiliations +

Journal of Electronic Imaging, Vol. 24, Issue 1, 013026 (February 2015). https://doi.org/10.1117/1.JEI.24.1.013026

Abstract

We present a computational approach for fast approximation of nonlinear tomographic reconstruction methods by filtered backprojection (FBP) methods. Algebraic reconstruction algorithms are the methods of choice in a wide range of tomographic applications, yet they require significant computation time, restricting their usefulness. We build upon recent work on the approximation of linear algebraic reconstruction methods and extend the approach to the approximation of nonlinear reconstruction methods which are common in practice. We demonstrate that if a blueprint image is available that is sufficiently similar to the scanned object, our approach can compute reconstructions that approximate iterative nonlinear methods, yet have the same speed as FBP.

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Linda Plantagie and Kees Joost Batenburg "Algebraic filter approach for fast approximation of nonlinear tomographic reconstruction methods," Journal of Electronic Imaging 24(1), 013026 (13 February 2015). https://doi.org/10.1117/1.JEI.24.1.013026

Published: 13 February 2015

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