Reducing the effects of scattered photons in X-ray projection imaging

An iterative algorithm is introduced which can compute and subtract the scatter bias. It is assumed that the scatter-free image is spatially bounded and anything outside the boundary is the result of recorded scattered photons. This information and the fact that the scatter distribution does not hav...

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Bibliographic Details
Published in:IEEE transactions on medical imaging 1989-03, Vol.8 (1), p.56-63
Main Authors: Fahimi, H., Macovski, A.
Format: Article
Language:English
Subjects:
Biological and medical sciences
Collimators
Detectors
Electromagnetic scattering
Frequency
Investigative techniques, diagnostic techniques (general aspects)
Iterative algorithms
Medical sciences
Miscellaneous. Technology
Optical imaging
Optical scattering
Particle scattering
Radiodiagnosis. Nmr imagery. Nmr spectrometry
X-ray imaging
X-ray scattering
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Description
Summary:An iterative algorithm is introduced which can compute and subtract the scatter bias. It is assumed that the scatter-free image is spatially bounded and anything outside the boundary is the result of recorded scattered photons. This information and the fact that the scatter distribution does not have appreciable high-frequency content are utilized.< >
ISSN:0278-0062
1558-254X
DOI:10.1109/42.20362