A 3D extension of MATLAB's phantom function - generates a phantom consisting of an arbitrary number of ellipsoids in 3D.
Matthias Schabel wrote this originally (thanks Matthias!); I made a small modification so that the size of the resultant 3D image can have anisotropic dimensions:
ph = phantom([256 128 32]);
... while still supporting custom ellipses.
Patrick Bolan (2022). 3D Shepp-Logan Phantom (https://www.mathworks.com/matlabcentral/fileexchange/50974-3d-shepp-logan-phantom), MATLAB Central File Exchange. Retrieved .
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