Sampling on concentric circles [MRI image reconstruction application]

  title={Sampling on concentric circles [MRI image reconstruction application]},
  author={N. E. Myridis and Christodoulos Chamzas},
  journal={IEEE Transactions on Medical Imaging},
Two forms of a sampling theorem for concentric circles are established for a bandlimited two-dimensional (2-D) function. The location of the samples is prescribed either on equidistant circles or on the roots of the Bessel function J/sub 0/(). Both methods give comparable results, however, the number of samples required for their numerical evaluation is significantly less for the root-sampling formulation. 


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