Patent ID: 7409033

Claim:
A method of reconstructing an image from detected data using an x-ray cone beam through a real object to be imaged to a real planar detector, the x-ray cone beam emanating from a source rotated less than a circle around the object, comprising the steps of: a) detecting x-ray data at a plurality of positions of the source in a path of rotation around the object, b) weighting the detected x-ray data according to position in the detector, c) convolving the weighted x-ray data with a ramp filter kernal and backprojecting the convolved weighted data to form a first reconstructed three dimensional image, d) convolving the weighted x-ray data with a ramp filter kernal and a Hilbert kernal and backprojecting the convolved weighted data to form a second reconstructed three dimensional image, e) taking a 1D Hilbert transform of the second three dimensional image, and f) combining the first reconstructed image and the Hilbert transformed second three dimensional image to form the reconstructed image.