X-ray or gamma ray systems or devices – Specific application – Tomography
Reexamination Certificate
2005-06-07
2005-06-07
Bruce, David V. (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Tomography
C378S062000
Reexamination Certificate
active
06904121
ABSTRACT:
A method reconstructs 3-dimensional information of an object from projection images of said object acquired by a digital tomosynthesis system having an x-ray source following a trajectory relative to the object and a detector. The method comprises determining mathematical relationships between Fourier Transforms of logical slices through the object and Fourier Transforms of projection images of the object. Moreover, a digital tomosynthesis system includes a detector and an x-ray source traversing a trajectory a constant distance from a plane containing the detector. A computer of the digital tomosynthesis system reconstructs 3-dimensional images of an object by determining mathematical relationships between Fourier Transforms of logical slices through the object with Fourier Transforms of projection images of the object.
REFERENCES:
patent: 5872828 (1999-02-01), Niklason et al.
patent: 6196715 (2001-03-01), Nambu et al.
patent: 2004/0264636 (2004-12-01), Claus et al.
patent: 2004/0264648 (2004-12-01), Claus et al.
Claus Bernhard Erich Hermann
Opsahl-Ong Beale
Yavuz Mehmet
Bruce David V.
Cabou Christian G.
General Electric Company
Testa Jean K.
Thomas Courtney
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