Image analysis – Applications – Biomedical applications
Reexamination Certificate
2006-06-20
2006-06-20
Choobin, Barry (Department: 2623)
Image analysis
Applications
Biomedical applications
C382S132000, C382S154000
Reexamination Certificate
active
07065234
ABSTRACT:
A method of correcting scatter includes obtaining a voxellized representation of a 3D image of an object from a plurality of projection data. A single scatter profile for the object is calculated using the voxellized representation of the 3D image of the object. A total scatter profile for the object is determined using the single scatter profile and an adjustment factor and the projection data is corrected using the total scatter profile to obtain a scatter corrected projection data. A beam hardening correction method includes simulating a number of attenuation data for an x-ray spectrum, at least one object material, and a detector spectral response. A function is fitted to the attenuation data to obtain an attenuation curve. A number of projection data for an object are corrected using the attenuation curve to obtain a number of beam hardening corrected projection data. A corrected image of the object is reconstructed from the beam hardening corrected image data.
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EP Search Report—EP25250519, Munich, Jun. 22, 2005.
Du Yanfeng
Hopkins Forrest Frank
Choobin Barry
DeCristofaro Richard A.
General Electric Company
Patnode Patrick K.
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