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A standard and linear fan-beam Fourier backprojection theorem
[article]
2021
arXiv
pre-print
In this work we propose a theoretical low-complexity formulation for the tomographic fan-beam backprojection in standard and linear geometries. The proposed formula is obtained from a recent backprojection theorem in the parallel case. Such formula is written as a Bessel-Neumann series representation in the frequency domain in polar coordinates. A mathematical proof is provided together with numerical simulations compared with conventional fan-beam backprojection representations to validate our
arXiv:1812.06519v3
fatcat:kexcv2xgqnfqhapjdyyb3xetsq