Patent ID: 6898264
Filing Date: 2005-05-24
Classification: A61B,G06T,Y10S

Abstract:
1. A method of computing images derived from computer tomography detectors, comprising the steps of: (a) collecting cone beam data from a detector during a scan of an object; (b) preprocessing the cone beam data, wherein the step of preprocessing includes (c) identifying lines on a plane DP(s), where s is the parameter along the scan path and DP(s) is any plane intersecting the cone beam; (e) convolving the said preprocessed data along said lines with filter 1/sin(γ), where γ is polar angle in the plane containing the current source position and a said line; (f) back projecting said filtered data to form a precursor of said image; and (g) repeating steps a, b, c, d, e, and f until an image of the object is completed.