Methods and apparatus for reducing image artifacts

Details Methods and apparatus for reducing image artifacts Methods and apparatus for reducing image artifacts

1995-11-13

1996-10-01

Porta, David P.

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

378 15, 378901, A61B 603

Patent

active

055616950

ABSTRACT:
The present invention, in one form, is a method for improving image quality in CT helical scan systems by using a post reconstruction filtering algorithm. In accordance with one embodiment of the algorithm, image data is segmented into sharp structure data and background data. The background data is then filtered to remove reconstruction and data artifacts. The filtered background data is then combined with the sharp structure data. The combined data can then be used to generate an artifact reduced image.

REFERENCES:
patent: 5396418 (1995-03-01), Heuscher
patent: 5400377 (1995-03-01), Hu et al.
patent: 5473655 (1995-12-01), Hu

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