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US 5,708,690 AGranted
Methods and apparatus for helical image reconstruction in a computed tomography fluoro system
AssigneeGeneral Electric Company
InventorJiang Hsieh
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AssigneeGeneral Electric Company
InventorJiang Hsieh
Estimating the term…
The present invention, in one form, is a system for performing image reconstruction from projection data acquired in a helical scan. More specifically, the system implements an incremental reconstruction algorithm for helical scan projection data which does not require filtering, weighting and backprojecting such projection data for generating each image. Particularly, an overscan weighting algorithm generates weighting factors to be applied to projection data to generate base image projection data. An update weighting algorithm generates update weighting factors to be applied to the base image projection data to generate subsequent image projection data.
A system for producing a base tomographic image and a subsequent tomographic image of an object using projection data acquired in a scan, said system comprising an x-ray source and a detector array, said detector array comprising a plurality of detectors, said system configured to:
A method for reconstructing an image of an object in a CT system using projection data acquired in a scan, the CT system having an x-ray source for projecting x-rays and a detector array, said detector array comprising a plurality of detectors, said method comprising the steps of:
Dependencies are inferred from the claim text.