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

Figure 5

Reconstruction results of Shepp-Logan phantom using the proposed extrapolation method. From left to right: reference from nontruncated data, proposed correction method with medium truncation, and proposed correction method with severe truncation. The grayscale window is . The yellow circles indicate the ROI.