Abstract
The performance of 3-D X-ray imaging systems, such as tomography, tomosynthesis, and flashing tomosynthesis, is determined, among other things, by the degree of blurred details in layers adjacent to the layer in focus. In this paper the problem of optimizing the blurring is investigated in respect of tomography. To this end, the search for an ideal blurring figure in the image space is transferred to the Fourier space by looking for modulation transfer functions with a smooth shape. A computer programme capable of Fourier transforming arbitrary two-dimensional curves by a one-dimensional integral is applied in a simulation study of spiral kinematics. The resulting optimum blurring figures are presented.
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