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Algebraic reconstruction for x-ray tomography

Référence

85251-01

Mots-clés

X-ray

Statut des brevets

Know-how and software

Inventeurs

Ali MOHAMMAD DJAFARI

Statut commercial

Exclusive or non-exclusive licenses and collaborative research.

Laboratoire

Laboratoires des signaux et systèmes, a CNRS, Ecole Supérieure d’Electricité (SUPELEC) and Université Paris-Sud Laboratory (UMR 8506) in Gif sur Yvette, France.

Description

TECHNICAL DESCRIPTION

This invention describes software for image reconstruction in Computed Tomography (CT), based on algebraic methods. Basic algorithms such as simple or filtered backprojection, as well as state of the art reconstruction algorithms such as ART, SIRT, SART, MART (regularized versions), Level-set and active contour methods, Maximum Entropy (ME), Maximum likelihood EM and many Bayesian inference based methods with different simple or composite Markovian modelling are implemented.
A 3D extension of these methods is under developpment.

INDUSTRIAL APPLICATIONS

This software can be used for many computed imaging techniques such as X-ray scanners, Positon Emission Tomography (PET), SPECT, ray-tracing ultrasound tomography in medical imaging, non destructive testing and evaluation (NDT and NDE) as well as in many chemical process tomography and in geophysical imaging applications. Diffraction or diffusion are not taken into account.

 


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