Contribution à l'imagerie ultrasonore quantitative

Abstract : We first present an imaging technique based on the diffraction tomography approach . Experimental results on phantoms will be used to analyse this method at its various stages and illustrate its capabilities. The images is a map of the density of the sources induced in the object by the incident wave. This density is the product of the pressure field in the object by a simple function f (C, a) of the sound speed C and attenuation a in the object . We then present an iterative algorithm that isolate f (C, a) and allows the determination of C and a . This approach will be discussed through results obtained by numerical simulation .
Keywords : ultrasound imaging
Type de document :
Article dans une revue
Traitement du Signal, Lavoisier, 1985, 2 (5 Sp), pp.473-477
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https://hal-centralesupelec.archives-ouvertes.fr/hal-01262849
Contributeur : Dominique Lesselier <>
Soumis le : mercredi 27 janvier 2016 - 11:46:57
Dernière modification le : vendredi 28 septembre 2018 - 01:16:41

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  • HAL Id : hal-01262849, version 1

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Bernard Duchêne, Dominique Lesselier, Walid Tabbara. Contribution à l'imagerie ultrasonore quantitative. Traitement du Signal, Lavoisier, 1985, 2 (5 Sp), pp.473-477. 〈hal-01262849〉

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