Note on radon and iradon transforms and Matlab's iradon on the all-at-once call vs. the one-at-time call
Effects of Reconstruction Parameters on Image Noise and Spatial Resolution in Cone-beam Computed Tomography
Figure 8.13, The responses in frequency domain (top row) as well as the discretized spatial domain kernels (bottom row) of the Ram-Lak and Shepp-Logan filters - Medical Imaging Systems - NCBI Bookshelf
Representation of the filters of Fig. 9 in the ( p -)spatial domain. | Download Scientific Diagram
MATLAB How to implement a Ram-Lak filter (Ramp filter) in the frequency domain? - Stack Overflow
Figure 2.9 from Improved compressed sensing algorithm for sparse-view CT | Semantic Scholar