Tomographic reconstruction for x-ray cone-beam scan data

Details Tomographic reconstruction for x-ray cone-beam scan data Tomographic reconstruction for x-ray cone-beam scan data

2006-11-07

2008-08-05

Thomas, Courtney (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C382S131000

Reexamination Certificate

active

07409033

ABSTRACT:
Disclosed is x-ray cone beam scan data reconstruction of an imaged object with a reconstruction algorithm using shift invariant filtering and backprojection with the maximum tomographic capability of a circular scan larger than p plus cone angle, when CB data is not truncated and data extrapolation is not allowed. The reconstruction scheme includes a conventional FDK reconstruction and a parallel reconstruction using differential back projection and 1D Hilbert transform to suppress the CB artifacts.

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