Image analysis – Applications – Biomedical applications
Reexamination Certificate
2005-10-25
2005-10-25
Chang, Jon (Department: 2623)
Image analysis
Applications
Biomedical applications
C382S132000, C378S207000, C250S252100
Reexamination Certificate
active
06959106
ABSTRACT:
The present invention is directed to a method and apparatus of objectively testing the low contrast performance of an imaging system. Images of a uniform phantom and images of a low contrast detectability phantom are reconstructed. Thereafter, a group of pixels from an image of the uniform phantom are removed and replaced with a group of pixels from an image of the LCD phantom. A user or test observer is then prompted to identify which quadrant of the first phantom image contains a group of pixels from the LCD phantom. An accuracy of a user response is then determined and conveyed to the user. The present invention is applicable with a number of imaging modalities including computer tomography, magnetic resonance imaging, PET, ultrasound, and the like.
REFERENCES:
patent: 4331021 (1982-05-01), Lopez et al.
patent: 5414479 (1995-05-01), Ginsburg
patent: 5994900 (1999-11-01), Gurvich
patent: 6694047 (2004-02-01), Farrokhnia et al.
patent: 2003/0020873 (2003-01-01), Fink et al.
patent: 2003/0133076 (2003-07-01), Lehmeier et al.
Chang Jon
Della Penna Michael A.
General Electric Company
Horton Carl B.
Mackowey Anthony
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