On the optimality of the filtered backprojection algorithm.
It is shown that under certain conditions the filtered backprojection algorithm produces a computed tomographic reconstruction for which the statistical accuracy attainable in the amplitude estimation of large-area objects meets the general lower bound derived by Tretiak. In this sense, filtered backprojection is an optimum algorithm.
D003201:Computers; D003626:Data Display; D013597:Systems Analysis; D013598:Systems Theory; D014057:Tomography, X-Ray Computed