Interpolation-Free Scanning And Sampling Scheme For Tomographic Reconstructions

K. D. Donohue; J. Saniie

doi:10.1117/12.966981

1 January 1987 Interpolation-Free Scanning And Sampling Scheme For Tomographic Reconstructions

K. D. Donohue, J. Saniie

Proceedings Volume 0767, Medical Imaging; (1987) https://doi.org/10.1117/12.966981
Event: Medical Imaging, 1987, Newport Beach, CA, United States

Abstract

In this paper a sampling scheme is developed for computer tomography (CT) systems that eliminates the need for interpolation. A set of projection angles along with their corresponding sampling rates are derived from the geometry of the Cartesian grid such that no interpolation is required to calculate the final image points for the display grid. A discussion is presented on the choice of an optimal set of projection angles that will maintain a resolution comparable to a sampling scheme of regular measurement geometry, while minimizing the computational load. The interpolation-free scanning and sampling (IFSS) scheme developed here is compared to a typical sampling scheme of regular measurement geometry through a computer simulation.

Citation Download Citation

K. D. Donohue and J. Saniie "Interpolation-Free Scanning And Sampling Scheme For Tomographic Reconstructions", Proc. SPIE 0767, Medical Imaging, (1 January 1987); https://doi.org/10.1117/12.966981

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