Method and Apparatus for Data Conversion in an Unequal Gamma Angle CT System
AssigneeGE Medical Systems Global Technology Company, LLC
InventorsJUN LI, SHUO LI, JUAN ZHONG, JIAQIN DONG, ABHISHEK RAWAT
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Abstract
A method and apparatus for data conversion in an unequal γ angle CT system. The method for imaging in a CT system having a flat module detector array includes obtaining fan beam projection data of an object from a CT scan, obtaining a geometric structure parameter of the flat module detector array; rebinning data from the fan beam projectiondata to parallel beam projection data based on the geometric structure parameter to convert the fan beam projection data into the parallel beam projection data, and generating a CT image from the parallel beam projection data.
Claims20
A method for imaging in a CT system having a flat module detector array, the method comprising:
- obtaining fan beam projection data of an object from a CT scan;
- obtaining a geometric structure parameter of the flat module detector array;
- rebinning data from the fan beam projection data to parallel beam projection data based on the geometric structure parameter to convert the fan beam projection data into the parallel beam projection data;
- and
- generating a CT image from the parallel beam projection data.
An apparatus for imaging in a CT system having a flat module detector array and obtaining fan beam projection data of an object from a CT scan, the apparatus comprising:
- a parameter acquisition device configured to acquire a geometric structure parameter of the flat module detector array;
- and
- a data rebinning device configured to rebin data from the fan beam projection data to parallel beam projection data based on the geometric structure parameter to convert the fan beam projection data into the parallel beam projection data,
- wherein the CT system generates a CT image utilizing the parallel beam projection data.
A CT system comprising:
- an apparatus for imaging comprising:
- a parameter acquisition device configured to acquire a geometric structure parameter of the flat module detector array;
- and
- a data rebinning device configured to rebin data from fan beam data to parallel beam data based on the geometric structure parameter to convert the fan beam projection data into the parallel beam projection data,
- wherein the CT system generates a CT image utilizing the parallel beam projection data.
Dependencies are inferred from the claim text.