Selective plane removal in limited angle tomographic imaging

A method of improving a planar image in limited angle tomography by removing blurred image information from selected out‐of‐focus planes is discussed. Focused tomosynthesized images rather than individual projections are used. The necessary equations for removing the information from either two or four adjacent planes, produced with a symmetrical, but otherwise arbitrary blurring function, are developed and specialized to the geometry of circular tomography. Results of a phantom experiment illustrating the technique are presented.