Tomographic reconstruction of axisymmetrical objects from one view by model approximation

Author

Lagrange, J.M. ; Dauty, I. ; Azencott, R.

Author_Institution

Centre d´´etudes de Vaujours, Courtry, France

Volume

1

fYear

1997

fDate

26-29 Oct 1997

Firstpage

492

Abstract

Classical techniques for the reconstruction of axisymmetrical objects are all creating artefacts (smooth or unstable solutions). Moreover, the extraction of very precise features related to large densities´ transitions remains quite delicate. We develop a new approach-in one dimension for the moment-that allows us both to reconstruct and to extract characteristics: an a priori is provided thanks to a density model. We show the interest of this method with regards to noise effects quantification; we also explain how to take into account some physical perturbations arising from real data acquisition

Keywords

Gaussian noise; acoustic signal processing; acoustic wave propagation; computerised tomography; data acquisition; deconvolution; detonation waves; explosions; feature extraction; image reconstruction; X-ray photographs; artefacts; axisymmetrical objects; deconvolution; density model; density transitions; explosives; feature extraction; model approximation; noise effects; perturbations; real data acquisition; shock waves; shock waves propagation; tomographic reconstruction; Constraint theory; Data acquisition; Data mining; Explosives; Lagrangian functions; Position measurement; Shape; Shock waves; Subspace constraints; Tomography;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 1997. Proceedings., International Conference on

Conference_Location

Santa Barbara, CA

Print_ISBN

0-8186-8183-7

Type

conf

DOI

10.1109/ICIP.1997.647896

Filename

647896