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- W1671092132 abstract "Polar periodicities associated with the Radon transform and Lagrange multipliers are studies to obtain the sample/ recovery relationships. By considering a window function, which is zero outside the object boundaries and inside its transparent areas, a Fourier domain algorithm is introduced in which the Lagrange multipliers are determined using the window as a constraint. By expressing the backprojection image using the basis function of the projection transform a reconstruction model for fan beam projections is given. A very fast, iterative, space domain algorithm for divergent ray projections is introduced which gives the minimum energy reconstruction by exploiting a special matrix structure; this method matches the noise statistics and can utilise 'a priori' knowledge." @default.
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- W1671092132 date "2005-03-24" @default.
- W1671092132 modified "2023-09-25" @default.
- W1671092132 title "Reconstruction algorithms for limited view projection data" @default.
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- W1671092132 doi "https://doi.org/10.1109/icassp.1983.1172194" @default.
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