Projection slice theorem using polar NUFFT

Hi everyone!

Are there any implementation of the central slice theorem using the polar_FFT of NUFFT ( nonuniform FFT )?

Actually I am trying to simulate CT reconstruction as below:

• take the Radon transform of a 2D slice over different theta,
• generate a sampling pattern (radial mask)
• generate a variable density radial grid.
• place the radon transform into the radial grid
• generate Fourier sampling operator {ex: FT = p2DFT(mask)}
• Item reconstruct initial image with (zero-fill with density compensation ) (ex: im = FT'*(data))

I would be very grateful for your help Thank you Alan

[Alan AF]

could any one know how to implement the Central Slice theorem using using Fessler's NUFFT package?