Region-of-Interest CT Reconstruction Using Object Extent and Singular Value Decomposition

In computed tomography, a whole scan of the object may be impossible, generally because the object is larger than the scanner field of view. Such a set up leads to truncated projections. Using differentiated backprojection, the reconstruction problem can be reduced to a set of 1-D problems consisting of the inversion of the Hilbert transform. When the object partly overlaps the scanner field of vi...