title: Selective plane removal in limited angle tomographic imaging.
abstract: 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.
mesh_terms: D006801:Humans; D008433:Mathematics; D008953:Models, Anatomic; D011856:Radiographic Image Enhancement / Q000379:methods*; D013679:Technology, Radiologic; D014056:Tomography, X-Ray / Q000379:methods*