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Proceedings Paper

Direct 3D Imaging Using Constrained Natural Voxel Decomposition
Author(s): L. Garnero; J. P. Hugonin; N. de Beaucoudrey
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Paper Abstract

We propose a new method of three dimensional image reconstruction from a limited set of projection data, which uses a decomposition of the object distribution on "constrained natural voxels". This method combines the advantages of the natural voxel decomposition, which matches exactly the measurements recording, and those of constrained algorithms, which incorporate a priori informations in the reconstruction problem. The natural elements are the elementary integration volumes, covered by the beam paths. We propose in this method to weight each natural element with a function that can translate a priori informations on support and density. We have applied this method to two 3D recording systems used in Nuclear Medicine : the slanted hole collimator and the rotating slit collimator.

Paper Details

Date Published: 18 October 1989
PDF: 8 pages
Proc. SPIE 1137, Science and Engineering of Medical Imaging, (18 October 1989); doi: 10.1117/12.961715
Show Author Affiliations
L. Garnero, C.N.R.S. (France)
J. P. Hugonin, C.N.R.S (France)
N. de Beaucoudrey, C.N.R.S (France)


Published in SPIE Proceedings Vol. 1137:
Science and Engineering of Medical Imaging

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