Adaptive filter for reducing streaking artifacts in x-ray tomogr

Details Adaptive filter for reducing streaking artifacts in x-ray tomogr Adaptive filter for reducing streaking artifacts in x-ray tomogr

1993-07-02

1995-05-16

Dzierzynski, Paul M.

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

378901, 36441316, A61B 603, G01N 23083

Patent

active

054168155

ABSTRACT:
Streaking artifacts in a computed tomography x-ray image are reduced by adaptively filtering each set of projection data. The adaptive filter produces an error vector (.theta.) by low-pass filtering the projection data (P) and subtracting the error vector (.theta.) from the projection data (P) prior to image reconstruction. A window function generator controls the low-pass filter as a function of x-ray detector readings.

REFERENCES:
patent: 4571635 (1986-02-01), Mahmocdi et al.
patent: 4707786 (1987-11-01), Dehner
patent: 5276614 (1994-01-01), Heuscher

Affiliated with

Also associated with

Rating

Adaptive filter for reducing streaking artifacts in x-ray tomogr does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adaptive filter for reducing streaking artifacts in x-ray tomogr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive filter for reducing streaking artifacts in x-ray tomogr will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-644134