X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Patent
1995-11-02
1997-01-14
Tokar, Michael J.
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
378901, 36441317, A61B 603
Patent
active
055947670
ABSTRACT:
The present invention, in one form, is a method for enhancing image sharpness in images generated from CT scan data by using enhancement masks. The enhancement masks are generated, in one embodiment, by generating difference image data from the original age data and low pass filtered image data. The original image data CT numbers are assigned to image regions, e.g., bone, air, and soft tissue, and based on such CT number classifications, certain data in the difference image is fully or partially suppressed. Subsequent to suppressing some difference image data, the difference image data set, which is sometimes referred to as an enhancement mask, is then combined With the original image data to increase image sharpness.
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Beulick John S.
Bruce David Vernon
General Electric Company
Pilarski John H.
Tokar Michael J.
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