Sampling on concentric circles.
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- Record sourced from PubMed, PMID 9688161.
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Abstract
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 J0( ). Both methods give comparable results, however, the number of samples required for their numerical evaluation is significantly less for the root-sampling formulation.
Medical subject headings
- Image Processing, Computer-Assisted
- Magnetic Resonance Imaging
- Models, Theoretical