An Improved Extrapolation Scheme for Truncated CT Data Using 2D Fourier-Based Helgason-Ludwig Consistency Conditions

<div>Illustration of zero coefficients in the 2D Fourier transform of a sinogram. (a) Shepp-Logan phantom, (b) the corresponding sinogram, and (c) the 2D Fourier transform of the sinogram.</div>

International Journal of Biomedical Imaging

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Figure 1

Figure 1: An Improved Extrapolation Scheme for Truncated CT Data Using 2D Fourier-Based Helgason-Ludwig Consistency Conditions 