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Sampling on concentric circles [MRI image reconstruction application]

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2 Author(s)
Myridis, N.E. ; Dept. of Electr. Eng., Democritus Univ. of Thrace, Xanthi, Greece ; Chamzas, C.

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 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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Medical Imaging, IEEE Transactions on  (Volume:17 ,  Issue: 2 )