Abstract
The inversion of the celebrated Radon transform in three dimensions involves two-dimensional plane integration. This inversion provides the mathematical foundation of the important field of medical imaging, known as three-dimensional positron emission tomography (3D PET). In this chapter, we present an analytical expression for the inversion of the three-dimensional Radon transform, as well as a novel numerical implementation of this formula, based on piecewise polynomials of the third degree.
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Notes
- 1.
Plane integrals are special cases of surface integrals, where the surface of integration is a plane.
- 2.
Plane integrals are special cases of surface integrals, where the surface of integration is a plane.
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Acknowledgements
This work was partially supported by the research programme “Inverse Problems and Medical Imaging” (200/947) of the Research Committee of the Academy of Athens. A.S. Fokas has been supported by EPSRC, UK in the form of a senior fellowship.
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Protonotarios, N.E., Kastis, G.A., Dikaios, N., Fokas, A.S. (2021). Piecewise Polynomial Inversion of the Radon Transform in Three Space Dimensions via Plane Integration and Applications in Positron Emission Tomography. In: Rassias, T.M. (eds) Nonlinear Analysis, Differential Equations, and Applications. Springer Optimization and Its Applications, vol 173. Springer, Cham. https://doi.org/10.1007/978-3-030-72563-1_17
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