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Proceedings Paper

Tomographic reconstruction using free-form deformation models
Author(s): Xavier L. Battle; Yves J. Bizais; Catherine Le Rest; A. Turzo
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Paper Abstract

We address the issue of using deformable models to reconstruct the shape of unknown objects in the context of 3D tomography. We focus on the reconstruction of piecewise- uniform radioactive distributions such as in blood pool or lung imaging. We represent the unknown distribution by a set of closed surfaces defining uniformly emitting regions in space. The methods implemented so far tend to directly deform the surfaces. Rather than deforming the surface models themselves, we explore the deformation of the space in which the surfaces are contained to match a set of scintigraphic measurements. We focus on the use of free-form deformations to describe the continuous transformation of space. We illustrate this approach by reconstructing simulated scintigraphic data of the lungs.

Paper Details

Date Published: 21 May 1999
PDF: 11 pages
Proc. SPIE 3661, Medical Imaging 1999: Image Processing, (21 May 1999); doi: 10.1117/12.348590
Show Author Affiliations
Xavier L. Battle, Univ. Brest (France)
Yves J. Bizais, Univ. Brest (France)
Catherine Le Rest, Univ. Brest (France)
A. Turzo, Univ. Brest (France)


Published in SPIE Proceedings Vol. 3661:
Medical Imaging 1999: Image Processing
Kenneth M. Hanson, Editor(s)

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